Hi, How did you measure that? They are very different from my measurements. Here is what I did:
Put radio TX in Test mode to protect the XG3. Connect XG3 to antenna 1 at -74dBm on 10m. Measure: port 1: -76dBm port 2: -107dBm (port connected to another antenna switch which presents a short circuit). port 3: -110dBm (port connected to dummy load from Ridge Electronics). The measurements are taken with LP-Pan/NaP3. That's a mere 34dB in the best case. BTW the numbers confirm what I can easily observe during normal operation. What are other people seeing? AB2TC - Knut Phil & Debbie Salas wrote > “...I have noticed that the port-to-port isolation between the 3 antenna > ports is rather poor...” > > I measured about 42dB isolation on 6M from port 1-2. And this stays > pretty constant down to 15M and then gets better fast. > I measured about 61dB isolation on 6M from port 1-3. This gets better > very fast, going to 75dB on 10M. > > I use ports 1 and 3 for my two HF antennas (43ft vertical and 20/15/10M > rotatable dipole), and put my 6M beam on port 2. > > Phil – AD5X > <snip> -- View this message in context: http://elecraft.365791.n2.nabble.com/KAT500-schematic-tp7568007p7568054.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
