Sunday, September 30, 2018

Tilted Terminated Folded Dipole Antenna. Post #1632.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=Batw43uoQ9I.

Here's a nicely-done video on how to design, build, and use a Tilted Terminated Dipole Antenna.  The video describes a T2FD antenna project from design to installation featuring a 10w terminating resistor made from 4 X 5w 390 ohm resistors in a series-parallel configuration and enclosed in a balun/resistor assembly for structural integrity.  In days past, B & W made several variations of this antenna for the Department of Defense and other U.S. Government agencies.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, September 29, 2018

RV Antennas for Amateur Radio. Post #1631.


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

If own a mobile home or a recreational vehicle (RV), then you know how vital communications can be.  Why not provide an extra margin of safety and enjoyment by installing an amateur radio station in your RV or other vacation vehicle?  In this well-produced video from Reese Peter Griffin (DDS), we see several ways to mount both HF and VHF/UHF amateur radio antennas.  Each installation is simple, effective, and relatively cheap.  Of particular note is the "mast-to-ladder" method which allows rapid deployment of both HF and VHF/UHF antennas.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http:  www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, September 28, 2018

Counterpoise/Rat Tail for Ham Radio. Post #1630.


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

Adding a short "rat tail" or counterpoise wire to your hand held VHF/UHF transceiver can boost the range of your radio, reduce the swr a bit, and lead to clearer communications.  The "rat tail" becomes the missing half of the radio's vertical antenna.  This video shows you a simple way of making and attaching the "rat tail" to your transceiver.  A  basic, simple way to increase the coverage of your VHF/UHF transceiver.

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

http://www.HawaiiARRL.info,
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, September 27, 2018

HF mobile antenna new project. Post #1629.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=YShh25VYb3c>

Here's an excellent example of how to make a durable and efficient HF mobile antenna from CT1JRZ.  The keys to his success are a well-designed and built coil and an effective grounding system for his vehicle equipment.  This antenna could also be used on an urban lot where space is at a premium.  A nicely done antenna project!

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, September 26, 2018

The W8JK Antenna. Post #1628.


The W8JK Antenna. Post #1628.

http://qrznow.com/the-w8jk-is-a-famous-and-effective-dx-antenna/

Author:  ZR6TXA.

Please click link to read the full article.

Comment:  It's alway fun to build and try a classic antenna.  Such is the case with the W8JK beam antenna, originally designed, built, and used by John Krauss in 1937.  Krauss updated his ground breaking design in the June 1982 issue of "QST", published by the ARRL.

In this post, ZR6TXA takes us step-by-step through the design, construction, and use of this simple, effective beam antenna.  Simply stated, the W8JK antenna consists of 2 closely-spaced parallel dipoles driven with opposite phase.  Properly designed, the W8JK can cover 20 meters through 10 meters with elements only 7.3 meters/23.94 ft long.  According to ZR6TXA, optimum element spacing is around 2.6 meters/8.52 feet.

The article contains helpful drawings, photos, and suggestions for the novice antenna experimenter.  Why not built and use a "classic" antenna during your next long holiday weekend?  The W8JK would be the perfect choice for those looking for a simple, effective, and inexpensive HF beam antenna.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, September 25, 2018

HF Indoor Loop Antenna DIY-Simple & Easy to Build. Post #1627.


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

Here's another fascinating idea for an indoor HF antenna.  A well-produced video which gives you an idea of what can be accomplished with a carefully built magnetic loop antenna."Chappy Happy" demonstrates some of the capabilities of this Do-It-Yourself (DIY) antenna.  Please note the classic Hallicrafters S-38 receiver used in these tests.  While the video is well constructed and flows well, it's a little short on technical details.  This antenna covers amateur/ham radio frequencies between 5 MHz and 14 MHz.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM0.

Monday, September 24, 2018

Ham Radio 2m/70 cm Vertical Dipole Antenna. Post #1626.


If you can't view the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=RcO5WAiksNI.

Here's another fascinating and easy-to-build antenna idea from Dave Tadlock (KG0ZZ).  In this well-organized tutorial, Dave takes us step-by-step through the theory, design, construction, and use of a 2m/70cm vertical dipole antenna.  This antenna is perfect for limited space areas or for portable/emergency use in the field.  Make one for your home station and another for your "go-kit" bag in your vehicle.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, September 23, 2018

Testing a bi-square antenna on 10 metres. Post #1625.


If you can't views the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=xKNE25ZNgu4.

Australian radio amateur Peter Parker (VK3YE) has produced an interesting video about the bi-square antenna--one of the few antennas I've never tried.  According to Peter, the construction of this antenna is simple:  Take two 10 meter (approximately 33-feet) of wire, "form into a square with the ends at the top and bottom.  Support at the top and tie off to maintain a square diamond shape.  Connect to transceiver via (an) antenna coupler that can handle high impedances...the support should be 7-8 metres (23 to 26-feet) high."  Peter believes the antenna can deliver around 3-4 dB gain with a figure 8 pattern broadside to the wires.

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

http://www.HawaiiARRLinfo.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, September 22, 2018

VHF Install-Nuts & Bolts Pro Tip. Post #1624.


If you can't view the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=oiv5z-4mKJM.

Over the past few years, I've featured several videos and extended articles on mobile operations using amateur/ham radio.  The one area I didn't cover was how to install amateur/ham radio equipment on a boat.  Boat mobile seems like an interesting way to contact our fellow radio amateurs.  In this video from Captain Cefus McRae, we see how to install a VHF transceiver and antenna on an open water vessel.  If you take your boat on a lake or even into the ocean, it pays to take along a VHF transceiver and some amateur/radio equipment just in case you run into an emergency.  This video offers a quick, simple installation that will make sure you have emergency communications handy when you need them.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, September 21, 2018

Bobtail Curtain Antenna. Post #1623.


If you can't view the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=6dU2b0AHD1M.

A Bobtail Curtain Antenna is something you should try at least once in your Amateur/Ham Radio "career."  I've used "curtain antennas" during ARRL Field Day events, and can attest to their high directivity and gain.  Simply stated, a Bobtail Curtain Antenna is a bidirectional, monoband wire array that can really add "punch" to your signal.  Stan Gibilisco (W1GV) does a good job of explaining the theory, construction, and use of these high-gain antennas.  If you have a spare weekend and a friend or two to help you, please build and test your own Bobtail Curtain Antenna. You may be surprised just how well this array performs.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news ( a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, September 20, 2018

Top Band Hams-22 Different Wire Antennas for the 160 meter band. Post #1622.


Top Band Hams-22 Different Wire Antennas for the 160 meter band.

http://topbandhams.com/?id=6.

Accessed on 21 September 2018, 0441 UTC, Post #1622.

Please click link to read the full article.

Comment:

During the current solar cycle, propagation seems to favor the lower HF bands from 160 meters to 40 meters.  This may be a good time to build some antennas that take full advantage of  the "Top Band" or 160 meters.  Thanks to the Top Band Hams group, we have 22 proven designs that will provide you with hours of good contacts during this period of poor propagation on the upper HF bands (20 through 10 meters).  Each antenna is fully illustrated with all necessary measurements included.

Here are some of the antennas covered in this excellent tutorial:

Random Length Radiator Wire Antenna.
Delta Loop Antenna.
Half-Delta Loop Antenna.
1.9 MHz Full-Wave Loop Antenna.
Off-Center-Fed Full-Wave Doublet.
Terminated Sloper Antenna.
40-80-160 Multiband Short Dipole Antenna.
160 meter half sloper Antenna.
160 meter Linear Loaded Sloper Antenna.
Super-Sloper Antenna.
Clothesline Antenna.
160m, 80m, 40m Curtain Zepp Antenna.
The 160 meter Inverted L Antenna.

Most of these antennas can be redesigned for any amateur radio band between 160 meters and 10 meters. Good luck on your new 160 meter antenna!

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, September 19, 2018

ham radio HF wire antenna projects. Post #1621.


If you can't view the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=R8hv1iLTUM8.

Antenna experiments are fun, educational, sometimes surprising, and at times frustrating.  In this video from "umajunkcollector:, we see a variety of curious and fascinating homemade HF antennas that work very well for the bands they cover.  Particularly interesting are the inverted U antenna, an inverted V slinky dipole antenna, and an unconventional 20 meter antenna.  Try some of these antennas and see how well they perform.  Most of the antenna materials can be found in your junk box or from the nearest building supply outlet.  Building antennas is a great way to spend a creative afternoon.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://oahuarrlnews.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, September 18, 2018

G5RV Multi Band HF Dipole. Post #1620.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=aeNHIQ_j4Dk.

Although Louis Varney (G5RV--SK) designed this antenna as a 3/2 wavelength dipole for the 20 meter band, it has proven useful on amateur radio bands from 160 through 10 meters.  In this video, Bernie Huth (W4BGH) explains the basic theory, design, construction, and use of this multiband antenna.  Bernie presented the original video to the Brandon Amateur Radio Society in Brandon, Florida in March of 2017.  The video is exceptionally well made and includes valuable suggestions for making this versatile antenna.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https;//amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, September 17, 2018

Antennas for Portable Amateur/Ham Radio Operations-ICQ Podcast Episode 276. Post #1619.


If you can't view the video podcast, please insert this title URL into your web browser: https://www.youtube.com/watch?v=HHdaLq6ZqMc

One of my favorite Amateur/Ham Radio online programs is the popular ICQ podcast which explores the expanding universe of Amateur Radio.  In Episode 276 we get both an informative news cast and an excellent, easy-to-understand tutorial on portable and emergency antennas for radio amateurs.  On the news portion of the podcast, Martin (M1MRB) is joined by Leslie (G0CIB), Edmund (M0MNG), Matthew (M0NJX), and Bill (N3JIX) in an informal review of the top Amateur/Ham Radio news stories of the past week. The special feature of the program is an exhaustive examination of antennas suitable for emergency and portable operations from Ed Durrant (DD5LP).  Don't miss this truly outstanding program.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Until next time,

Russ Roberts (KH6JRM).

Sunday, September 16, 2018

How to Build: Ham Radio 2 Meter Quarter Wave Antenna. Post #1618.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=HkmD3Sgz7Q0.

If you're having trouble connecting to your local or regional 2 meter repeater site, then this simple, low cost, and easy-to-build 2 meter quarter wave vertical antenna is what you need.  Randy Hall (K7AGE) does an excellent job of explaining the theory and operation of this simple vertical antenna. He takes you step-by-step through the design, construction, and use phases of this simple antenna. The antenna is small enough to fit into your emergency "go kit" or for use as a standby 2 meter antenna at your home station.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, September 15, 2018

NVIS-A Way to Build One. Post #1617.


NVIS-A Way to Build One. Post #1617.

https://hamradiohawaii.wordpress.com/2018/09/14/nvi-a-way-to-build-one/

Author:  Stacy Holbrook (KH6JRM).

Accessed on 15 September 2018, 1557 UTC, Post #1617.

Please click link to read the full article and to view the supporting videos.

Comment:

Do you need a reliable, sturdy, and inexpensive antenna for local or regional communications?  If you do, a simple NVIS (near vertical incident skywave) HF antenna may be what you're looking for.  These high-angle radiators provide consistent coverage out to approximately 500 miles/810 kilometers, depending on propagation and weather conditions.  I've used a simple 40 meter NVIS antenna mounted 16 feet/4.87 meters above ground level to check in to the Hawaii Interisland Net. My signal reports vary from 57 to 59.

In this post, Stacy (KH6OWL) provides a simple tutorial on getting started in NVIS communications. He provides drawings, photos, and three outstanding videos to explain the theory and operation of NVIS HF antennas. 

NVIS antennas are perfect for local or regional nets, "rag chews", and emergency communications.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, September 14, 2018

New 160 meter antenna and launcher. Post #1616.


If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=51wEe-Wg1IQ.

Besides the large size of most 160 meter antennas, getting the antenna high enough for a good take off angle presents special challenges. Most antenna references recommend getting dipoles at least 1/2 wavelength above ground to work decent dx--something that is often difficult to achieve if you don't have tall supports such as trees on your property.  Even if you have trees to support your antenna, getting the antenna launched into the upper branches can be quite a headache.  In this video, Dave and his friends solve that issue with a specially designed "pneumatic weight launcher" that puts antenna elements in a tree's upper branches without much stress.  I rather like Dave's design, having tried slingshots, casting rods, and bows/arrows with varying success. A nicely done video with valuable suggestions for those radio amateurs desiring DX on 160, 80, and 40 meters.

For the latest Amateur/Ham Radio news and information, please visit these wedsites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, September 13, 2018

DIY folding VHF/UHF discone antenna. Post #1615.


If you can't view the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=snXHduQVe8Q.

Here's a simple, inexpensive, and sturdy discone antenna that you can build at home and use in a variety of portable and emergency situations.  According to "SurvivalComms" this compact, field deployable VHF/UHF is broadbanded and will cover up to 1 GHz without significant SWR problems.

The folded discone antenna kit weights only 28 ounces and uses about 30 feet of RG-58 coaxial cable as the feed line. The entire assembly can be carried in a small nylon bag.  Make one of these antennas for your "go-kit" or use as a standby antenna at your home.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, September 12, 2018

Antennas for small spaces HOA, condos, and coops. Post #1614.


If you cant's view the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=RkNSFmkNSk8.

Operating from a deed-restricted home, apartment, or condominium can be a genuine challenge.  Out-door antennas often perform better than the wires designed for indoor or limited spaces.  Alternatives to outdoor dipoles, verticals, and yagi beams can be found with magnetic loop antennas, indoor loops, and even mobile antennas adapted for indoor use.

Such is the case in this post by Mark Etzey, who uses the popular Yaesu ATAS 120A mobile antenna for his small apartment.  If you carefully adjust the antenna and use an indoor counterpoise system, you can get on the air with a usable signal.  Mark offers several helpful suggestions for radio amateurs who want to use a HF mobile antenna for their home station.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, September 11, 2018

Installing Your Ham Radio in Your Vehicle, Tips and Tricks. Post #1613.


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

A nicely done video from "HamRadioConcepts" showing several options for installing  VHF or UHF equipment in your vehicle.  The discussion on proper fusing of the vehicle battery is especially interesting.  This video has many helpful tips and suggestions for your mobile ham station.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News and Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, September 10, 2018

How to Make an Amateur Radio Stealth Wire Antenna. Post #1612.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=4KQEQJ5qeuw

Here's another great, down-to-earth antenna idea from Callum McCormick (M0MCX), otherwise known as the "DX Commander."  All you need are thin wire for the antenna, Aluminum Scaffold Tubes, and some telescoping fiberglass sail board/wind surf masts to support your nearly invisible wire.  Callum says this simple, stealth antenna is "cheap, economical, and structurally sound."

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

http://www.Hawaii ARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, September 9, 2018

The Double Bazooka Antenna-A Review. Post #1611.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=9xfpcD6xuSo

Rob (VK3BVW) does an excellent job of explaining the theory, design, construction, and use of  the double bazooka antenna.  This review examines double bazooka antennas designed for the 80 and 40 meter amateur radio bands.

If you're looking for an efficient, quiet, single band dipole antenna, you may want to consider the double bazooka antennas examined by Rob in this video.  A double bazooka antenna doesn't require the use of a balun.  The antenna consists of 50 ohm coaxial cable (such as RG-58) with the shield split at the center and the feedline attached to the open ends.  The braided copper shield of the coax is the actual RF radiator, while the center conductor acts as a matching transformer to provide a DC ground.

Try a double bazooka antenna for your favorite HF band and see what happens.  Experimenting with antennas is half the fun of amateur radio.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Saturday, September 8, 2018

Attic Mounted HF Loop Antenna in HOA, Does It Work? Post #1610.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=cYd0l-PEPR8.

Here's another idea for getting on the air in deed-restricted housing (HOA/CC&Rs). In this video, Eric of "HamRadioConcepts" mounts a popular MFJ magnetic loop HF antenna in a friend's HOA-controlled home.  An inexpensive TV rotator provides some directivity for the antenna. While this attic antenna is not an ideal arrangement, it will get you on the air.  Another case of "out of sight, out of mind."  It's also possible to erect an outdoor stealth antenna, but that will take more care and planning.  But for now, try this magnetic loop idea from Eric. Digital modes should work quite well with low-power antennas such as the MFJ loop.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, September 7, 2018

Dipole and Inverted Vee design and calculator. Post #1609.


Dipole and Inverted Vee design and calculator. Post #1609.

https://www.hamuniverse.com/dipivcal.html

Accessed on 08 September 2018, 0507 UTC, Post #1609.

Please click link to read the full article.

Comment:

Here's a handy calculator for radio amateurs who build their own antennas.  Dipoles and Inverted Vees are simple, basic antennas that work well if you design them correctly.  This article explains the theory and simple math equations that will give you the proper element lengths for these antennas.

Of course, your final design will be affected by several factors:

As you may already know, no two antenna installations are alike or identical in many ways, even when using identical antennas and each the same height above ground.
The surroundings, height above ground, the ground conductivity, and many other factors can detune most any antenna. Even the length, diameter of wire used, and type of feedline can be a factor to some extent.
Using larger conductor diameters for the antenna like aluminum tubing rather than normally used #12 or #14 AWG wire can have an effect that will be different than using the calculator which is designed for normal wire use.
The old standby formula 468 / freq in mhz = total length is used in the calculator for an average height of 1/2 wave high and horizontal dipole..and then 5 % is subtracted from that number to get the inverted V lengths. These formulas are used to get you close to the desired lengths......but they will result in ONLY the ball park lengths and not an exact length when you take into consideration all of the factors involved with the environment of the antenna.
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If you take these considerations into account, you should have an efficient, simple antenna that will give you hours of enjoyment.  Besides, you'll get the satisfaction of building something useful for your ham station, and, in the process, learn a bit more about antenna theory and design.  Good luck!

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).




Thursday, September 6, 2018

Rugged Radios Tech Tip: How to use a SWR meter. Post #1608.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=i42AJfKH04M

In this video, Rugged Radios gives you a quick "crash course" in the basics of using a SWR meter to test the performance and power of your 2-way radio antenna.  A well-produced and easily understandable video tutorial.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation. com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Wednesday, September 5, 2018

How To Make A Dipole Antenna For Ham Radio. Post #1607.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=375b_ZXDc6o.

A nicely done video tutorial from a 16-year-old newly licensed radio amateur who hopes his love for antennas will inspire us to experiment on our own and have some fun at the same time. "The Modern Adventurer" discusses dipoles and their variants, including the flat-top horizontal dipole, the inverted V, and the vertical dipole--all capable of delivering contacts with a minimum of materials and stress.

Dipoles are basic, simple antennas that most anyone can design, build, and use.  "The Modern Adventurer" does a fairly good job of explaining how these classic antennas work and how they can be modified to fit your operating environment.  I enjoyed the enthusiasm displayed in this video.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM)

Tuesday, September 4, 2018

Simple Antennas That Work. Post #1606.


Simple Antennas That Work. Post #1606.

http://www.ve3sqb.com/hamaerials/ve3elb/simpleantennas.jpg

Authors:  VE3SQB and VE3ELB.

Please click link to see a graphic of these antennas.

Comment:

If a picture is worth a thousand words, then these simple antenna graphics may save you more than just words.  Each graphic provides a full explanation, construction details, and materials needed to build four simple, classic antenna ideas that work.

Here are the antennas that will get you on the air with a minimum of cost, labor, and stress:

The halfwave dipole antenna.
The inverted V antenna.
The fullwave loop antenna.
The ground plane antenna.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Monday, September 3, 2018

Ham Radio-My antenna for QRP night 2018. Post #1605.


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

Here's a simple magnetic loop antenna that can be built in just a few hours.  Kevin Loughin (KB9RLW) designed this antenna for indoor use during bad weather.  The only drawback for this antenna is the narrow bandwidth exhibited by the design.  Magnetic Loop antennas are stealthy, giving those living in deed-restricted homes and apartments an opportunity to operate without being noticed.  Magnetic Loop antennas also are ideal for portable and field operations.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, September 2, 2018

Building a Multi-Band HF Dipole Antenna. Post #1604.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=8KHzsKYsZL0

In this video, Larry (WD0AKX) takes us step-by-step through the design, construction, and use of a multi-band HF dipole antenna that covers the 40-20-15-10, and 6 meter amateur radio bands. Most of us will recognize this antenna as the "Fan Dipole", which requires no antenna transmatch (i.e."tuner").  Fan Dipoles are easy to make, durable, portable, and just plain fun to use.  Larry does an excellent job of explaining the theory and construction practices involved in this antenna design.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, September 1, 2018

NMO Antenna Base Installation. Post #1603.


If you can't see the video, please insert this URL title address into your browser search box: https://www.youtube.com/watch?v=RBhYAb_PYO4.

If you want a strong, permanent antenna mount for your VHF/UHF antennas, please consider use of a NMO antenna mount.  This video show a simple, nearly foolproof installation of a NMO mount that won't mar or damage the rear deck of your vehicle's trunk. 

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon).
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://amateurradionewsinformation.com (Amateur/Radio News & Information).
https://www.eham.net.
http://www.southgatearc.org.
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For the latest Amateur/Ham Radio news and information, please check the blog sidebars or links.  These news feeds are updated daily and weekly.  Thanks for joining us today:

Aloha, Russ (KH6JRM).