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" <[email protected]> Sent: Tuesday, February 11, 2014 10:21 PM To: "George Thornton" <[email protected]>; "'elecraft @ mailman . qth . net'" <[email protected]> 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 <[email protected]> To: "'elecraft @ mailman . qth . net'" <[email protected]> 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? ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
