Saturday, October 21, 2017

A radial plate for cheapskates. Post #1287.


A radial plate for cheapskates
(https://www.eham.net/article/38076).
Author:  Bill Savage (K3AN).
Accessed on 21 October 2017, 2055 UTC, Post #1287.
Please click link to read the full article.
Comment:

I've always enjoyed designing, building, and using "homebrewed" 1/4 wavelength vertical antennas. In the past, my ham radio shack has been located in areas where a full-length dipole antenna is impractical, especially for 80 and 160 meter operations. Vertical, sloper, and inverted vee configurations have worked well, considering my limited horizontal space.

While building vertical antennas is educational and often fun, finishing the necessary counterpoise or ground radial system has proven to be tedious and time consuming.

One way to deploy a ground radial system without much fuss is to use a metal radial plate as a connecting point for your vertical antenna counterpoise or ground radial system.  Several manufacturers make and sell these ground plates, and most of them have received excellent reviews in the amateur radio news media.  The only drawback is the cost.

In this article by Bill Savage (K3AN), we learn how some common household sink products can cut the cost of a metal radial plate. This article originally was published by www.eham.net on 30 April 2009.

Bill says the path to a homemade metal radial plate begins at the nearest home improvement center or neighborhood hardware store:

It's nothing more than a replacement kitchen sink strainer that you can buy at Home Depot or Lowe's for about $2.00. It's made from stainless steel and is “pre-drilled” for 10-24 size screws. You can readily install ten screws and nuts in the outermost ring of holes, and another five in the next ring. Install two solder or crimp-type terminal lugs under each nut and there's your 30-radial capacity. Furthermore, as shown in the photo, the strainer's center hole is large enough to fit over a copper-clad ground rod. You just have to remove the rubber stopper and pull out the metal center stem.

0x08 graphic



In my installation, each screw is fastened to the strainer with a compression lockwasher and nut. Then the radial lugs are placed over the nut and secured by a second nut. To prevent “galling” or seizing up of the stainless hardware, I placed Noalox grease on the screw threads. I also placed some grease on the flat surfaces of the lugs. Home Depot and Lowe's carry Noalox in the electrical section.

This would make an excellent weekend project.  Just follow Bill's instructions and you'll have a homemade metal ground plate for your 1/4 wavelength vertical antenna in only a few hours.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.

https://oahuarrlnews.wordpress.com.

https://bigislandarrlnews.com.

http://www.arrl.org

http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).

https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-147623615).

Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).

Hawaii Intelligence Daily (https://paper.li/f-1482109921).


Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Friday, October 20, 2017

Ham Radio 10 Meter Ground Plane Antenna. Post #1286.


If you can't view this article, please enter this title URL into your browser search box: https://www.youtube.com/watch?=aLgFeTpIX4A.

In this video from Dave Tadlock (KG0ZZ), we get a step-by-step tutorial on how to design, build, and use a 10 meter ground plane antenna.  The antenna can be supported on a mast using a simple counterpoise as the ground plane or as a ground-mounted vertical employing a ground radial system.  In my experience, mounting the antenna at a height of approximately 1/2 wavelength (16.5 feet/5/03 meters) above ground level,along with a simple counterpoise or drooping radial system will give better performance than leaving the antenna mounted close to the ground.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News 7 Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, October 19, 2017

Ham Radio - Viewer Request - My home HF antenna solution, 160-10 on a ...


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=9o0pIMeKR7w.  This is post #1285 in a continuing series of "Simple Ham Radio Antennas."

This video from Kevin Loughin (KB9RLW) is a good example of what can be done to cover the amateur radio bands from 160 meters through 10 meters with a few simple antennas, ranging from Off-Center Fed Dipoles (OCFD) to inverted vees.  At look at Kevin's current antenna arrangement may give you some excellent ideas on adapting multiband HF antennas to fit your unique housing and land situation.  The important thing is to get on the air.  Some compromise antennas do very well if we're willing to accept less-than-perfect performance.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Aloha es 73 de Russ (KH6JRM).

Wednesday, October 18, 2017

Emergency Antenna Platform System (EAPS). Post #1284.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=UFAj2rSPILA.

Here's a handy device for erecting emergency antennas in parking lots--just right for Field Day activities or portable operations.  The device is made by the Boca Bearing Company.  Be sure it's legal to attach this device to lamp posts, which may be owned by city, county, or federal agencies. Still, this is a great idea if you didn't pack a telescoping fiberglass mast in your "Go Kit."

For the latest Amateur Radio news and information, please visit these websites:

http://www.Hawaii ARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, October 17, 2017

Rat Tails and Counterpoise adapters for VHF Rubber Duck Antennas. Post #1283.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=3-JqK7w_1d8.

Are you disappointed in the performance of the stock "rubber duck" antenna that came as standard equipment on your HT?  You're not alone.  The "rubber duck" antenna is sometimes no better than a "dummy load", especially if you're trying to hit a distant repeater.

In this video from "Mountain Parameters", we learn about a quick and easy antenna attachment that will help improve the efficiency and range of your "rubber duck" HT antenna.  A simple, effective, and inexpensive improvement that can be made for any HT antenna is the creation of a "counterpoise" made from cheap, locally available components. This homemade "counterpoise" creates a virtual ground plane, by adding the "missing half" to your HT's antenna. This simple device is often called a "Rat Tail."  This wire attachment to the base of your HT's antenna will improve the efficiency of the antenna and permit better connections to repeaters or simplex stations.  If you enjoy hiking or camping, be sure to pack one of these "counterpoise" wires in your "go kit."  This simple attachment may make the difference between having a contact or losing one.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, October 16, 2017

Ham Radio - Super cheap antenna insulators. Post #1282.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=KrrJxWK0NNM.

You'd be amazed at the materials you can use for your antenna projects.  For example, take the case of antenna insulators.  While you can buy profession ceramic insulators on line, why not build them yourself with materials found in your home or at the nearest building supply/hardware store?  In this video, Kevin Loughin (KB9RLW) used something called "Campbell Plastic Clips" for his antenna insulators.  They seem to work well and stand up to varying weather conditions.  I've used electric fence egg insulators, pvc pipe, and even thick rubber bands for my homemade antenna insulators.  Be creative and see what you can find for your next antenna project.

For the latest Amateur Radio news and information, please check these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, October 15, 2017

Making and Using a Simple 40-m Dipole (#86)> Post #1281.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=gfLUrVnnQUI.

Here's another great video tutorial from David Casler (KE0OG).  In this video, Dave shows how simple materials around your home can be used to make an effective 40-meter dipole antenna.  If you had to buy the materials at a neighborhood home improvement outlet or hardware store, your total cost would be less than $30.00.  I've built several dipole antennas following Dave's instructions, and each one has worked well, considering the cost. If you use coaxial cable as a feedline, your 40-meter antenna can be used on the third harmonic for 15-meter operation. If you use a balanced feeder, along with a 4:1 current balun and an antenna "tuner", you can have multiband capability from 40 meters through 10 meters.  This simple antenna will serve you well.  Erect it as high as you can.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, October 14, 2017

Balanced 450 Ohm ladder Feedline Though Interior Walls, Foundation, and ...


If you can't view this video, please insert this title URL into your browser: https://www.youtube.com/watch?v=rv0nsRTSoiw. This is post #1280 in a continuing series of simple ham radio antennas.

Although I prefer balanced feedlines for my homebrewed antennas, they sometimes prove difficult to install because of limitations imposed by your home's or apartment's structure.  In this respect, coaxial cable feedlines have a definite advantage.  In this video from KJ4KAF, we see how a little creativity can overcome some of installation challenges presented by balanced feedlines. Generally, balanced feedlines such as 450 ohm ladder line, 300 ohm television twin lead, and homemade 600 ohm feedline show lower losses than coaxial cables. Balanced feedlines, along with a sturdy antenna transmatch ("tuner") and a 4:1 current balun will allow multiband use from a single HF dipole antenna.  Hopefully, this video will give some suggestions on how to use a balanced feedline in your shack.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
htps://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for visiting us today.

Aloha es 73 de Russ (KH6JRM).

Friday, October 13, 2017

HAM RADIO RV MOTORHOME BUG OUT BOONDOCK. Post #1279.


If you can't view the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=BIpmSObR0M.

Whenever you go on holiday or vacation, be sure to take amateur radio with you, especially if you plan to travel self-contained in a RV motorhome.  This excellently produced tutorial shows some of the rigs, antennas, and equipment that can be incorporated into a motorhome.  Amateur Radio is a great asset during a "bugout" or "boondock", where local cell phone, TV, or FM radio are not available.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, October 12, 2017

The SummerLoop II 14 - 50 MHz pedestrian mobile magnetic loop. Post #1278.


If you can view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch/v=kykqimN7nvI.

Here's another fascinating antenna design from Peter Parker (VK3YE).  In this post, Peter shows us his "SummerLoop 14-50 MHz pedestrian mobile magnetic loop antenna."  Construction seems fairly easy and will give you a good chance to experiment with magnetic loop antennas, be they mobile or not.  In this design, Peter says he has given a previous magnetic loop "a revamp with improved performance and coverage."  Peter uses a Yaesu FT-817 QRP rig to demonstrate the capabilities of this antenna.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, October 11, 2017

Testing a bi-square antenna on 10 metres. Post #1277.


If you can't view this video, please insert this title URL into your browser inbox: https://www.youtube.com/watch?v=xKNE25Ngu4.

Here's another very good, simple antenna that costs little while delivering great performance on the band of your choice.  In this video, Peter Parker (VK3YE) shows us how to build a bi-square antenna for the 10 meter amateur radio band.
Construction is easy--form a square with the ends at the top and bottom. Support the top with a telescoping fiberglass mast ("squid pole").  Connect the bi-square to a simple homebrewed L "tuner" and run a piece of coax to your rig--in this case a Yaesu-817 QRP transceiver.  Since the SWR could be high, you may want to used balanced feed line into the "tuner".  As you can see from the video, Peter did get some contacts.  This is a fun antenna that won't cost you much money. If you're ambitious, build one of these antennas for 40, 20, or 15 meters.

For the latest Amateur Radio news and information, please visit these sites:

http://www.Hawaii ARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).




Tuesday, October 10, 2017

Antenna Information for Emergency Communications. Post #1276.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=nNXvuv83ZNc.

Thanks to "Commsprepper" for this handy, useful chart of VHF/UHF frequencies for amateur radio, MURS, Marine, and GMRS services.  The chart contains specific lengths for antennas covering 136 mHz through 520 mHz.  Use the formulas on the chart to compute the exact length of a 1/2 wavelength dipole antenna. You can cut the measurements in half for a 1/4 wavelength vertical antenna.  I have a similar chart mounted on the wall of my ham shack for easy reference.

For the latest Amateur Radio news and information, please visit these sites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, October 9, 2017

ARRL: Puerto Rico-Caribbean Recovery. Post #1275.


If you can't view this video, please insert this title URL into your browser searchbox: https://youtu.be/HpJkY3-dJf4.

For today's post, I'm diverting a bit from antenna experiments to bring you up to date on what's happening to communications in hurricane-devastated Puerto Rico and in other Caribbean islands impacted by Hurricane Maria.

This video is taken from "Ham Radio Nation", program 320.  In this video, Dr. Bob Heil (K9EID) discusses hurricane recovery efforts in Puerto Rico with ARRL CEO Tom Gallagher (NY2RF).  The ARRL has sent volunteer radio amateurs to the stricken island and to other nearby islands to help first responders with emergency communications and to assist public service agencies, such as police and fire departments, hospitals, The American Red Cross, and other community services repair and extend emergency communications to the entire island.

You can view the entire program at this site:

https://twit.tv/hn/320.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, October 8, 2017

Ham Radio Antennas - Rebuilding the L network QRP antenna tuner. Post #1274.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=9-fuQz0-xbc.

A nicely done video from Kevin Loughin (KB9RLW) showing how a homebrewed qrp antenna "tuner" can be reworked to fit inside a small box. The L network tuner is ideal for QRP operations in the field and at your home station. The "tuner" is easily built with readily available materials.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, October 7, 2017

Enabling ham radio channels in wireless 802.11 devices (updated). Post#1273.


If you can't view this video, please insert this Title URL into your browser search box: https://www.youtube.com/watch?v=XXptUTUCwAM

A simple, basic tutorial from KB9MWR on how to enable ham radio channels in wireless 802.11 devices. The video contains an excellent description of the antennas best suited for this purpose.  This "how-to" video includes a couple of AirOs and DD-WRT screen shots.  High speed multimedia using part 15 wireless internet can be the foundation of a MESH system for your neighborhood. Detailed information on this system can be found at: http://www.qsl.net/kb9mwr/projects/wi.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).


Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, October 6, 2017

Ham Radio Mast for Antenna | Setup. Post #1272.


If you can't view this video, please insert the title URL into your blog search box: https://www.youtube.com/watch/v=ob53Zsp-ja8.

Telescoping fiberglass poles are useful for supporting a variety of antennas from inverted vees to horizontal dipoles.  In this video from "AnyThingWithWheels" we see just how easy it is to assemble, build, and use a MK-4-HD pole to support HF antennas.  In this video, "AnythingWithWheels" extends the pole to 25 feet/7.62 meters to support his antenna high above ground.  This telescoping pole is fairly lightweight at 17.3 pounds/7.86 kilograms, making it good for portable operations.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com..
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, October 5, 2017

Building a trap dipole for 7 and 14 MHz. Post #1271.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=LbEAwAG1KMA.

According to Peter Parker (VK3YE), "A trap dipole is a good choice if you only want operation on two or three bands and don't want to adjust an antenna coupler to change between them."  In this well-produced, easily understandable tutorial, Peter takes us step-by-step through the design, construction, and use of a trap dipole for the 40 meter (7 MHz) and 20 meter (14 MHz) amateur radio bands.  Of course, you could design this antenna for other bands, such as 80/40 meters and 15/10 meters.  Other than winding some coils, the antenna is simple, effective, and fairly inexpensive.  This antenna would make a good weekend project.

For the latest Amateur Radio news and information, please visit these websites:

http:/www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated every Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, October 4, 2017

What is a loading coil? Post #1270.


If you can't view this video, please insert this URL title into your browser search box: https://www.youtube.com/watch?v=LF8-UrXqUVA.

A good, basic discussion of the theory and use of loading coils.  Loading coils are used to reduce the physical length of a resonant antenna and are found in a variety of home made and commercially-available antennas.  This video from Carl Lewis simple, hands on, and to the point.  Keep a copy of this video in you ham radio library for future reference.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast whic is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining me today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, October 3, 2017

J Pole Antenna for 2 Meters. Post #1269.


If you can't view this video, please insert this URL into your browser search box: https://www.youtube.com/watch?v=UABXDyu_hsE.

Here's a nice weekend project that will improve the performance of your 2 Meter equipment.  In this video from "drez20001", we get a complete tutorial on how to design, build, and use a J Pole Antenna for the popular 2 Meter amateur radio band.  The antenna is sturdy, portable, and will give you modest gain on this popular band.  The only drawback to this antenna is the cost of copper pipe used for the antenna sections.  You could substitute aluminum for the copper and save some money.  Another alternative to using copper would be to build the antenna from PVC pipe and use #14 AWG house wire for the radiating elements.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast that is updated each Friday afternoon).
https://paper.li/kh6jrm/1430280353 (Amateur Radio News & Information).

Other sites of interet:

Hawaii Science Digest (https://paper.li/f-14l76233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, October 2, 2017

2 minute portable HF vertical antenna: Using velcro tape for mounting. Post #1268.


If you can't view this video, please insert this title URL into your browser search box: https://wwww.youtube.com/watch?v=WHCNNRX8944.

Here's another clever idea from Peter Parker (VK3YE). In this video, Peter shows us how a telescoping fiberglass rod, some wire, and a roll of velcro tape can get you on the air in less than two minutes.  This small antenna kit could be stored in your vehicle or home for portable or emergency operations. If you can't find velcro tape, use any type of binding material, such as twisty ties, bungee cords, or plastic garbage bag ties with serrated edges.  A simple solution to an issue that has plagued many portable stations.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast that is updated each Friday afternoon).
https://paper.li/kh6jrm/1430280353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, October 1, 2017

2-Meter/VHF HAM Radio Emergency Setup. Post #1267.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=sMjwDSgo1so.

Amateur Radio emergency communications and portable stations are making headlines in hurricane-ravaged areas of the Caribbean and in the Commonwealth of Puerto Rico.  Radio amateurs are using emergency antennas, portable rigs, and alternative energy sources to get messages out of the heavily damaged island. Perhaps, it's time for you to build an emergency station for local emergencies. Here is a portable 2-Meter/VHF Ham Radio station suitable for quick deployment worldwide.  In this video from The Philippines, "NapstersGear" shows us a simple, easy-to-erect 2-meter ground plane antenna that should be in your emergency "Go-Kit."  The antenna takes only a few minutes to assemble and use.  Most of the components for this antenna can be rolled up and carried in a bag.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast that is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, September 30, 2017

N4KC's TOP FIVE GET-ON-THE-AIR-QUICKLY ANTENNAS. Post #1266.


N4KC's TOP-FIVE GET-ON-THE-AIR-QUICKLY ANTENNAS
(http://www.donkeith.com/n4kc/article.php?p=22).
Author:  Don Keith (N4KC).
Accessed on 30 September 2017, 2125 UTC.
Please click title link or enter title URL into you browser search box to read the full article.

Comment:

I ran across this fascinating article by Don Keith (N4KC) while I was searching for some new antenna ideas.  In this article, Don discusses five basic, easily-made antennas that will get you on the air quickly with a decent signal suitable for both DX and casual contacts.  According to Don, these simple, effective antennas are easy to build and use readily available materials.

Here are the top five get-on-the-air-quickly antennas:

The half-wave wire dipole.
The doublet with parallel feed lines.
The quarter-wavelength vertical with ground radial system.
The horizontal loop.
The original G5RV (a great antenna for the 40 and 20 meter bands).

Don does an excellent job of describing the theory, design, construction, and use of these simple antennas.  If you follow Don's suggestions, you'll be on the air with an effective, inexpensive antenna you built yourself .

Don closes his article with an upbeat message for those of us who may be afraid or our construction and design skills:

"So there they are. As mentioned, the main reason for this exercise is to give the new ham or someone who is returning to the hobby a bit of inspiration and some choices to consider for an antenna. And to urge them not to be too ambitious—ambitious to the point they never get around to putting anything up!
I think many of you will find a great deal of satisfaction in building your own aerial and then seeing how it works. There is certainly more satisfaction in that for many of us than there is in buying something already built and simply draping it over something in the backyard.
I do encourage you to play with your design. Try things. If they help, keep them. If they make your antenna a dummy load, toss it and start over. But most of all, have fun. And tell us about your experiences.
We are always interested in learning more."

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast that is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, September 29, 2017

Emergency Ham Antenna. Post #1265.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=iDHohc-w3Go.

If you need an emergency 2 meter, 1/2 wavelength antenna for your next portable operation, look no further than a piece of unused coaxial cable in your "junkbox." In this video from Aaron of "Prepping Ohio", we see how easy it is to convert some surplus cable into a simple, effective, and light weight antenna for 2 meters.  Add this antenna to your "Go-Kit" today.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, September 28, 2017

Ham Radio Go Kit v2.0 [EMCOMM]. Post #1264.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=wMmnUiyH0eI.

Considering how many natural disasters are occurring this year, it may be a good idea to make yourself an emergency "Go Kit" suitable for portable or emergency situations.  In this video from Julian (OH8STN), we see an example of a carefully thought out HF/VHF Go Kit using a Yaesu-817ND and a Chameleon Antenna MPAS (Modular Portable Antenna System).  This compact amateur radio station is lightweight, portable, and highly reliable.  Julian covers a variety of related topics in this post, including emergency power sources.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.wordpress.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, September 27, 2017

How To Build A Delta Loop Antenna. Post#1263.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=1uUVMaRFMv4.

One of my favorite antennas is the Delta Loop. It has some gain, receives well, exhibits low noise, takes up little space, and is fairly inexpensive.  In this video, Hiram Vazquez discusses the theory, design, construction, and use of this versatile, easily-made antenna.  You can use balanced feeders in conjunction with a 4:1 balun and an antenna "tuner" to attain multi-band capability.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, September 26, 2017

Portable dipole ham stick MFJ-347 mount. Post #1262.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=SYypZ0Ot55I.

Ham Stick antennas are the key to a simple, cost effective way to make a portable dipole antenna, which can be set up at Field Day or any other portable or emergency situation.  In this video from KG4YZI, we get an informative, step-by-step procedure on converting a few ham stick antennas into an easily built portable antenna. The MFJ-347 mount is a handy way to support the ham sticks.

For the latest Amateur Radio News and Information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, September 25, 2017

From ARRL President: Relief Efforts Need Your Help. Post #1261.

ARRL president appeals for volunteers to support hurricane relief efforts in Puerto Rico.

Source:  E-mails to ARRL members.

From:  Rick Roderick (K5UR), President, ARRL.

Accessed on 26 September 2017, 0515 UTC.

The Commonwealth of Puerto Rico and many smaller Caribbean Islands have been devastated by Hurricane Maria.  Although relief aid is arriving in this area, many smaller islands, including Puerto Rico, are facing dire shortages of water, electricity, medical aid, shelter, and communications.

ARRL President Rick Roderick (K6UR) has taken the rare step of appealing to the Amateur Radio Community, whether they be ARRL members or not, to support ongoing relief efforts in Puerto Rico.

On Monday, 25 September 2017, Roderick issued a mass e-mail appeal for help and included several areas where radio amateurs can best serve first responders.

Here's the full text of Roderick's message:
Monday, September 25, 2017 
Dear ARRL Member:
There are few times when I have needed to reach out directly to you for your help. This is one of those times.

The American Red Cross (ARC) has asked ARRL for assistance with relief efforts in Puerto Rico. In the nearly 75-year relationship between ARRL and ARC, this is the first time ARC has made a request for assistance on this scale. Hurricane Maria has devastated the island’s communications infrastructure. Without electricity and telephone, and with most of the cell sites out of service, millions of people are cut off from communicating. Shelters are unable to reach local emergency services and people cannot check on the welfare of their loved ones. The situation is dire.

How can you help?

1)    Volunteer. ARC needs up to 50 radio amateurs who can help record, enter, and submit disaster-survivor information into the ARC Safe and Well system. There are very specific requirements and qualifications needed for this deployment; for instance, familiarity with Winlink, an Amateur Radio license of General class or higher, and previous experience in disaster response.Deployment will be for up to 3 weeks (at ARC expense). If you would like to be considered for deployment, please complete the following online ARRL form, which asks for your qualifications and skills: Volunteer Deployment Form
2)    Donate to Ham Aid. ARRL’s Ham Aid program loans Amateur Radio equipment kits to established Amateur Radio Emergency Service (ARES®) groups and partner agencies during disaster response, in order to establish Amateur Radio communications support. Ham Aid is supported by donations from individuals and corporations – including many of our ham radio industry partners. ARRL has previously staged Ham Aid equipment in Texas, and in the last few weeks, we have supplied kits in Florida, the U.S. Virgin Islands, and Puerto Rico. Our supply of Ham Aid kits has been rapidly depleted. Your donation to Ham Aid will help us now. Your contributions to Ham Aid are 100% tax deductible. To make a donation online, go to www.arrl.org/arrl-donation-form and select “Ham Aid” from the ARRL donation form. To donate by mail, print a donation form, and mail it with your check payable to ARRL, noting “Ham Aid” on the memo line of your check; mail to ARRL, 225 Main Street, Newington, CT 06111 USA.

It has been four weeks since Hurricane Harvey made landfall in Texas. In little over a month, Hurricanes Harvey, Irma, and Maria have left paths of destruction and catastrophic flooding that will impact the lives of people throughout the southeast U.S. and Caribbean for years to come. Throughout these disasters, our trained ham radio volunteers, and especially those in coordinating roles, have helped us meet the requests of our partner agencies and organizations. To all ham radio operators who have been on alert, activated, deployed, or donated, THANK YOU. We are grateful for your service and for your generosity.

73
Rick Roderick, K5UR
ARRL President


Please help in any way you can.  The situation is "dire" and your support is needed.

Aloha es 73 de Russ (KH6JRM).


Sunday, September 24, 2017

Introducing The New Tuner Free Alpha Multiband Antenna 10- 24- 2016. Post #1260.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=AxwuXuIQvTE.

If you've been waiting for a multiband HF antenna that doesn't require a "tuner", then this fairly new, easy to assemble antenna from Alpha Antennas could be your answer.  This antenna was introduced in 2016 and has become a favorite choice of those wanting a sturdy, quality-made antenna suitable for both portable and home use. In this video  from "videosbymike", we get an excellent tutorial on the antenna's theory of operation, how to assemble the antenna parts, and how to improve the efficiency of this vertical. This antenna could be a good choice for those of us who prefer a commercial product.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, September 23, 2017

80m END FED NVIS FIELD ANTENNA. Post #1259.


If you can't view this video, please insert this title URL into your browser searchbox: https://www.youtube.com/watch?v=jiaHtmOB57Y.

In this video, NG9D offers a simple end-fed halfwave antenna suitable for 80 meter portable and emergency operations.  Most of the signal radiated by this antenna is high angle, making it ideal for Near Vertical Skywave applications (NVIS). NG9D provides necessary construction details, theory of operation, and a brief demonstration of how the antenna works in the field.  A nice, simple, inexpensive antenna that should be included in your "go kit."

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JEM).

Friday, September 22, 2017

Solo antenna mast erecting - Ham Radio know how. Post #1258.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=T10k1NIJO2A.

A nicely produced video from "ColdestMoon" on how to erect a mast suitable for amateur radio using only three guy lines and a telescoping fiberglass pole.  This method is quick, safe, and ensures a stable mast for your antennas.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li./kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, September 21, 2017

Phased Vertical Array on 20M. Post #1257


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=G5awjoMRzrQ.

A phased vertical array on 20 meters can give you a boost in gain and directivity on this popular amateur radio band. Bob (VK5FO) gives you a "walk through" of this antenna and a description of the end-fire phased array consisting of 2X 1/4 wave elevated ground plane antennas. This antenna would make an excellent field day or contest antenna.  Most of the materials can be bought at the nearest home improvement outlet or neighborhood hardware store.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430280353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, September 20, 2017

Fast Deploy All-Band Portable Ham Radio Vertical Antenna - DX Commander. Post #1256.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=NJ5IIr3hsIA.

A nice video showing how to deploy an all-band vertical antenna (DX Commander) in less than 25 minutes.  Notice how well organized the assembly process is and how easy it is to take the antenna down when operations are done. According to "Radionut63", this vertical antenna covers several HF amateur radio bands without a "tuner". He ends the video with a good contact on 17 meters.

For the latest Amateur Radio News and Information, please visit these websites:

https://www.HawaiiARRL.info.
https;//oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https;//paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, September 19, 2017

N7EAA's 65 foot vertical for 160M. Post #1255.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=LXcInIk1fGo.

Here's a dual band top loaded vertical antenna that covers both the 160 meter and 80 meter amateur radio bands.  For this project, N7EAA used a MFJ pipe for $200, galvanized steel electrical fence wire, and inexpensive poly rope for guy supports.  You'll probably need some help assembling and erecting this antenna. Like all vertical antennas, you will need a good ground radial or counterpoise system.  In this video, N7EAA attaches his ground system to an aluminum plate at ground level.

For the latest Amateur radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, September 18, 2017

Tom, K2BEW's Maple Leaf Studio Off Center Fed Windom Antenna. Post #1254.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=wDDQChjQra4.

The Maple Leaf Studio offers some excellent antennas for those of us with limited mechanical abilities.  This video from Tom (K2BEW) shows us the popular Off Center Fed Windom Antenna from this manufacturer.  Tom does an excellent job of showing us the step-by-step process of assembling this multiband HF antenna. In this video, Tom uses a 37-foot/11.28 meters aluminum mast to support the antenna.  The antenna fits comfortably into his beautiful yard.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, September 17, 2017

Homebrew antenna , 10-40 meter loop antenna. Post #1253.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=3T1LOGahiwY.

Here's another HF loop antenna idea if you have some trees or tall supports in your backyard.  Marcus Schrader built this full-wavelength 40 meter loop (143 feet/43.59 meters) and suspended it 20 feet/6.09 meters above ground using a few trees in his back yard.  He uses a 4:1 balun along with a length of 450 ohm ladder line to feed the antenna.  Marcus uses this combination with an antenna "tuner" to cover 10 through 40 meters.  As you can see from the video, the antenna is fairly "stealthy".

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, September 16, 2017

Antenna simulator for small vertical monopoles. Post #1252.


Antenna simulator for small vertical monopoles.
(http://www.472khz.org/pages/tools/antenna-simulator.php).
Accessed on 16 September 2017, 2215 hrs, UTC.
Please click link to read the full article.

Comment:

Now that the FCC has established rules and regulations for the 630 and 2200 meter amateur radio bands, radio amateurs can now expand their contacts with frequencies below the standard broadcast band.

One of the prime concerns related to these bands, besides running low power and non-interference for existing services, is the type of antenna suitable for such low frequencies.

It's possible to design a relatively small vertical monopole antenna that will perform well in the rf "basement", thanks to this antenna simulator for 472 kHz.

Although this simple calculator isn't a replacement for software such as EZNEC, it will give you an indication on how this type of antenna will perform.  Just plug in the raw data about antenna type, antenna dimensions, and estimated ground losses, and you'll have a good, general idea of how much wire you must use for the 630 meter band.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, September 15, 2017

FCC opens 630-and-2200-meter bands. Post #1251.


ARLB018 FCC opens 630-and-2200-meter bands; stations must notify UTC.
Special announcement from HQ ARRL, Newington, CT, 06111.
Accessed on 16 September 2017, 0800 hrs, UTC.
The full text of this special W1AW bulletin is listed below.
Comment:

On Friday, 15 September 2017, the FCC opened the 630 and 2200 meter bands for licensed radio amateurs, subject to special rules and regulations of the FCC. Here is the announcement from HQ ARRL, Newington, CT, 06111:

SB QST @ ARL $ARLB018
ARLB018 FCC Opens 630- and 2200-Meter Bands; Stations Must Notify
UTC Before Operating

ZCZC AG18
QST de W1AW
ARRL Bulletin 18  ARLB018
From ARRL Headquarters
Newington CT  September 15, 2017
To all radio amateurs

SB QST ARL ARLB018
ARLB018 FCC Opens 630- and 2200-Meter Bands; Stations Must Notify
UTC Before Operating

The FCC has announced that the Office of Management and Budget has
approved, for 3 years, the information-collection requirement of the
Commission's March 29 Report and Order (R&O) that spelled out
Amateur Radio service rules for the two new bands - 630 meters and
2200 meters. The R&O in PDF format can be found at,
https://apps.fcc.gov/edocs_public/attachmatch/FCC-17-33A1.pdf .

Notice of the action appears in today's edition of the Federal
Register. Before using either band, stations must notify the
Utilities Technology Council (UTC), formerly the Utilities Telecom
Council, that they plan to do so, and if UTC does not respond within
30 days, they may commence operation.

The website to notify the UTC is,
https://utc.org/plc-database-amateur-notification-process/ .

Last March 27, the FCC adopted the 2012 World Radiocommunication
Conference (WRC-12) implementation Report and Order (ET Docket
15-99), amending its Amateur Radio rules to - in the FCC's words -
"provide for frequency-sharing requirements in the 135.7-137.8 kHz
(2200-meter) and 472-479 kHz (630-meter) bands."

Section 97.313(g)(2) of those rules requires that, prior to starting
operation in either band, radio amateurs must notify UTC that they
intend operate by submitting their call signs, intended band(s) of
operation, and the coordinates of their antenna's fixed location.
The new rules do not permit any mobile operation.

"Amateur stations will be permitted to commence operations after a
30-day period, unless UTC notifies the station that its fixed
location is located within 1 kilometer of Power Line Carrier (PLC)
systems operating on the same or overlapping frequencies," the FCC
said. PLC systems are unlicensed. "This notification process will
ensure that amateur stations seeking to operate [on 630 or 2200
meters] are located beyond a minimum separation distance from PLC
transmission lines, which will help ensure the compatibility and
coexistence of amateur and PLC operations, and promote shared use of
the bands."

The FCC announced that it is making effective immediately the Part
97 rule amendments, Part 97.3, 97.15(c), 97.301(b) through (d),
97.303(g), 97.305(c), and 97.313(k) and (l), which do not require
OMB approval.
NNNN
/EX

You can find a follow up article from "CQ" Magazine at http://cqnewsroom.blogspot.com.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly  podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353.

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM)

Thursday, September 14, 2017

Five minute portable 40m ground plane antenna! Post #1250.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=IxGXJxNkfb8.

If you need to erect a portable HF vertical antenna for the 40 meter amateur radio band in 5 minutes or less, then this video from John Saunders may be what you need.  By pre-assembling the parts beforehand and storing them in your vehicle, you can have a working antenna for any portable or emergency situation.  John shows us how to assemble the antenna in an easy-to-understand, step-by-step process.  You may want to make your vehicle part of the ground system to increase efficiency and reduce rf flow on the outside of the coaxial feed.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, September 13, 2017

K1GMM 6 METER 3 ELEMENT QUAD BUILD 9.4 DBi. Post #1249.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=i6xH-s1rpiM.

Even in times of poor propagation, the 6 meter amateur radio band can still produce interesting contacts--often at surprising distances.  In this video from K1GMM, we learn how to build a 3-element 6 meter yagi that can deliver approximately 9.4 dBi gain.  According to K1GMM, all of the parts can be obtained for around $60 from a well-stocked home improvement outlet or hardware store.  The antenna can be broken down easily for portable or emergency operations.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Be sure to check the blog sidebars for more antenna and propagation articles.

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, September 12, 2017

Build a Portable Hexbeam Antenna. Post#1248.


If you can't view this video, please insert this title URL into your browser searchbox: https://www.youtube.com/watch?v=cPGMepI5hrI.

I you're feeling a bit experimental when it comes to HF antennas, why not try building a homebrew, portable hexbeam antenna?  In this video from "Cliff" of the QRP School, we learn how to design, build, and use this versatile, multiband HF antenna. Cliff offers many helpful suggestions, including a recommend parts list for the hexbeam.

For the latest Amateur Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast updated each Friday afternoon).
https://paper.li/kh6jrm/1430289353 (Amateur Radio News & Information).

Other sites of interest:

Hawaii Science Digest (https://paper.li/f-1476233615).
Hawaii Intelligence Digest (https://hawaiiintelligencedigest.com).
Hawaii Intelligence Daily (https://paper.li/f-1482109921).

Opinions expressed in this blog are mine unless otherwise stated.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM)