Hi Mike, I have the same thing here even with a dummy load on the ANT 2 connection (default in case anything goes ape). It is something that I would expect, how much isolation depends on the type of relay used, the frequency, how well the relay coil is by-passed , the crosstalk between external circuits, leakage through the box, etc etc etc. I would hope that when you switch to ANT 2, the signal drops a lot. I have not measured anything to do with this, but I would GUESS that at 7.1 MHz the isolation is around 50 - 60db. Hope this helps.
73, Geoff. GM4ESD ----- Original Message ----- From: "Mike Walkington" <[EMAIL PROTECTED]> To: "Elecraft-Reflector" <[email protected]> Sent: Monday, January 24, 2005 11:17 AM Subject: [Elecraft] Strange K2 Behaviour - KAT100 Antenna Isolation > Hi All, > > Continuing the theme of describing strange K2 behaviour! My KAT100 is > remotely installed in an EC2. I use ANT1 with nothing connected to the 2nd > antenna socket. Recently I noticed that having tuned in a relatively strong > station on ANT 1 and switching to the 2nd antenna (ie by pressing ANT1/ANT2 > switch) that I could still hear the station even though there is no antenna > connected to ANT2. This made me wonder what the isolation is between the > two antenna sockets and if anyone has measured it or whether I have a > problem that I need to locate and fix. Sorry, but I haven't yet swapped the > antenna to see if the behaviour reciprocates. > > Mike > VK1KCK > K2 #2599 > > _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
