Friday, January 24, 2020

#2 TEST: MINI 9:1 UNUN and 41m long Random Wire Antenna (part 3)


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=KHNQLrKzYck. this is Post 2124 in a continuing series of simple ham radio antennas.

In this video, Paul (OM0ET) makes some final adjustments to his mini 9:1 UnUn and lengthens his random long wire antenna to 41 meters (134.48 feet).  He also attaches a better ground wire to his system. 

Here are some of Paul's results:

"Today I did a second test of my home made MINI 9:1 UnUn and 41m long Random Wire Antenna. I was finally successful and had in total 6 nice QSOs with 5W and small XIEGU X5105 transceiver. The test took one hour, including installing and removing the antenna. One QSO on 40M band was not recorded. PART 2: https://youtu.be/dEWBhym1tJ4 PART 1: https://youtu.be/z9fJLo63ne0 I will very appreciate if you will support my work and you became to my patron on Patreon ;-) https://www.patreon.com/om0et Thank you very much for watching my videos! 73 Paul OM0ET"
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For the latest Amateur/Ham Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.blubrry.com/arrlaudionews/
http://www.hamradioupdate.com.
http://www.southgatearc.org.
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
https://paper.li/f-1576465810 (breaking amateur/ham radio news).

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Thursday, January 23, 2020

#1 TEST: mini 9:1 UnUn Random Wire home made Antenna (part 2)


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=dEWBhym1tJ4. This is post 2123 in a continuing series of simple ham radio antennas.

In this video, Paul (OM0ET) finishes his new mini 9:1 UnUn and begins testing the device "in the field."

Here are some of Paul's observations:

"I was tested my home brew mini 9:1 UnUn with random wire antenna 17,68m long. I was located in north-east part of Slovakia about 350m a.s.l. Radio propagations was poor. I ran 5W with XIEGU X5105 transceiver. I had just one QRP QSO today with SP1MVG/FF. I was not using the grounding on my UnUn. I will very appreciate if you will support my work and you became to my patron on Patreon ;-) https://www.patreon.com/om0et Thank you very much for watching my videos! 73 Paul OM0ET"

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In part three, Paul makes some adjustments and has better results.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.blubrry.com/arrlaudionews/
http://www.hamradioupdate.com.
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.
https://paper.li/f-1576465810 (breaking amateur/ham radio news).

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).


Wednesday, January 22, 2020

New Mini QRP 9:1 UnUn and Random Wire Antenna (Part 1)


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=z9fJLo63ne0. This is post 2122 in a continuing series of simple ham radio antennas.

In this two-part tutorial, Paul (OM0ET) show us his new design of a compact 9:1 UnUn for portable QRP Random Wire Antennas.

Here are some of Paul's observations:

"This is my new design of the small 9:1 UnUn for portable QRP Random Wire Antenna. In this video I show you this small home made QRP UnUn and I do quick impedance test. In the second part I want to test this antenna in the real portable conditions... I will very appreciate if you will support my work and you became to my patron on Patreon ;-) https://www.patreon.com/om0et Thank you very much for watching my videos! 73 Paul OM0ET"
---------
For the latest Amateur/Ham Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.blubrry.com/arrlaudionews/
http://www.hamradioupdate.com.
http://www.southgatearc.org.
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
https://paper.li/f-1576465810 (breaking amateur/ham radio news).

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Tuesday, January 21, 2020

Ham Radio Station Grounding. Post 2121.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=Mht2YyWAH1I.

Thanks to "Tinker John" (W5CYF) for this excellent discussion on RF Grounding for Amateur/Ham Radio.  Although grounding covers a multitude of purposes, John does a good job of sketching out the facts needed to make your ham shack "grounded" and safe for operation.

Although the RF grounding steps outlined in this video are easy enough to implement, John does extend this precaution:

"IMPORTANT: Effective and safe station grounding is a complex and often controversial subject. This video is not intended to be a how-to guide for safe and/or effective grounding. It is recommended that you seek qualified advice and instruction for your specific station and environment."

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To be on the safe side, please ground your station according to guidelines contained in the latest edition of the "National Electrical Code". If you need further help, please contact a licensed electrician .
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For the latest Amateur/Ham Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.blubrry.com/arrlaudionews/
http://www.hamradioupdate.com.
http://www.southgatearc.org.
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
https://paper.li/f-1576465810 (breaking Amateur/Ham Radio News).

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Monday, January 20, 2020

Solo antenna mast erecting - Ham Radio know how.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=T10k1NIJO2A. This is post 2120 in a continuing series of simple ham radio antennas.

Thanks to "ColdestMoon" for this simple and safe way to erect a fiberglass mast.

Here's what he says about the mast erecting procedure:

"I show how easy it is to erect a mast suitable for ham radio antennas on your own using only 3 guy lines and a fibreglass pole. Its a bit windy, and apologies for the audio quality."

Once you get the three guy wires set and anchored, all you have to do is "walk up" the mast and adjust the guy wires.

It would probably be a good idea to have one of your fellow radio amateurs help you erect the mast. As the video shows, strong gusty winds can complicate the process.

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

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.blubrry.com/arrlaudionews/
http://www.hamradioupdate.com.
http://www.southgatearc.org.
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
https://paper.li/f-1576465810 (breaking amateur/ham radio news).

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).