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Watching my Grandma talk on her Robyn base station, the glow of the tubes, the conversations and the amazing thought that sound travels through the air. I asked so many questions to gma about how it worked. I was amazed. Spent my adult life repairing, training, and teaching comms and...

solution of white vinegar and water mixture will also clean it. Added bonus if it came from a tobacco smoker vinegar helps remove the smell

How is the plate current ? How is the high voltage? Does the amplifier draw any plate current unkeyed? Keyed? Tubes or faulty metering circuit but hard to suggest what it could be without knowing more information.

Bill Curd pride electronics. https://www.linkedin.com/in/bill-curd-5a57253b

The metal mast isolates the coax from the radiating currents IE CMC I have tried with metal mast and without. metal mast is best.

As you increase height AGL as indicated in the above links i referenced the lobes do indeed split into multiple lobes. But the negative side to it is the nulls where the lobes are not at. You wont hear some stations if the angle of arrival is in a null. As a general rule the higher the antenna...

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http://www.dx-antennas.com/Height%20versus%20take%20off%20angle.htm http://www.hamuniverse.com/wb4yjtdipolepatterns.html Some good reading in the above links especially the dipole radiation pattern, since a yagi or quad is just a dipole with reflector and director. Friend of mine has a 4...

try it and find out where it works best on boom, main consideration is any interaction with other elements

Build a separate 17 meter dipole, mount it on boom feed it with separate feed line, coax. 1;1 balun is recommended.

Glad to see building and experimenting, looks great make some contacts and have fun

thanks for update BJ hope ya doing good. 3.865 is dead in mornings been enjoying captain chucks videos on u tube. caught him on 20 meters few months back. when you going get your wires back in the air?

yes

NOT TODD. thought he got ran off this forum and the 10-10 club revoked his membership for being a total ASS

https://www.66pacific.com/calculators/quarter-wave-vertical-antenna-calculator.aspx direct fed wide banded and cheap, built mine out of 1/2 inch emt conduit withstands hurricanes here in Florida

Yes that is a very strong and true statement. I find myself giving away equipment just to make room for more.

Thanks RWB I will look into that cleaner. De oxit getting expensive.

Says Dosy on the meter????

https://www.walcottradio.com/dosy-tc4002psw-benchtop-4000w-power-swr-antenna-switch-p-179.html Posted by BLUE BEAM ""Old post but I would like to clarify. This is simply not true! A Dosy meter uses a broad band toroid pick up. From 3Mhz to 29Mhz I personally know a Dosy is pretty darn good for...

looks good