shortwave antenna

On a sunny day (Thu, 7 Oct 2010 09:36:44 -0400) it happened "Jon" wrote in :

I need metric units, beep.

Try rec.radio.shortwave and rec.radio.amateur.antenna I'm not sure all these wires are going to make much difference compared to just one random length wire. MikeK MikeK

Add a real ground to the Ground-A1 connector.

I am using a similar setup successfully on several bands (Ham, transmit & receive) but as a dipole at 45 feet.

John Ferrell W8CCW

Yea, just hook it up to your generator.

One long wire is enough, a balun to get a balanced feed to the receiver, a lightning suppressor to protect yourself... Oh, crap, I just realized you don't care about safety, so skip any protection circuits.

Only one wire is likely to be more directional at the higher freqs., or change directivity. I usd to have some kind of dipole with different length wires.

greg

Just one wire, to A2, then a wire to a good ground to A1 and gnd. Most of those bands have pretty healthy atmospheric noise, and you'd need a pretty crappy receiver to overwhelm it. You need just enough antenna that you can hear the noise level go up when you connect it -- after that you're not really changing the SNR.

Story's different if you want to transmit, but that's not where you are.

Hmm..if you can translate between at least 2 languages, then...

Yeah, if you're running it to a tree use a screen-door spring to tension it, so it will have some compliance when the wind blows.

Good Luck! Rich

Forgotten how to multiply and divide?

One inch = 25.4mm, exactly, BTW ;-)

-- "For a successful technology, reality must take precedence over public relations, for nature cannot be fooled." (Richard Feynman)