[Elecraft] Antenna question

[George Danner]

Good advice:
I use wire antennas for 40m & 80m with a HexBeam for the higher bands & a 
5BTV vertical. My sub-receiver is connected to a 50' vertical wire. The 
vertical wire is about 20' (horizontally) from the wire antennas and about 
30' from the 5BTV and HexBeam
When I installed the KPA500 I did the same test starting at 10 watts on 80m 
through 10m. I found that there was enough isolation on all antennas to 
leave the sub-receiver connected. I use the sub-receiver for diversity and 
would miss that feature.
George

--------------------------------------------------
From: "WILLIS COOKE" <wrcooke at yahoo.com>
Sent: Tuesday, February 11, 2014 10:21 PM
To: "George Thornton" <gthornton at thorntonmostullaw.com>; "'elecraft @ 
mailman . qth . net'" <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] Antenna question

Since the K3 will do the QRP thing down to 100 mw, think about installing 
the vertical above the beam on the mast and gradually try more and more 
power out of the K3 until you start getting some overloading.  At least you 
can find your answer without frying anything and some folks find QRP lots of 
fun.  Maybe you will too!

Willis 'Cookie' Cooke, TDXS DX Chairman
K5EWJ & Trustee N5BPS, USS Cavalla, USS Stewart


________________________________
 From: George Thornton <gthornton at thorntonmostullaw.com>
To: "'elecraft @ mailman . qth . net'" <elecraft at mailman.qth.net>
Sent: Tuesday, February 11, 2014 5:36 PM
Subject: Re: [Elecraft] Antenna question


This might be a stupid question, but here goes.

I have a small lot.  I currently am using a 3 element Yagi that barely fits 
on the property.  I was thinking about getting a vertical as a second HF 
antenna.  If I put it up it is going to have to be pretty close to the Yagi.

I have a dual receive K3.  If I have both receivers going, one on each 
channel, and I broadcast on one of these antennas, am I in any danger of 
overloading and frying the other receiver?


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