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Discussion in 'General Ham Radio Discussion' started by Moleculo, Jul 30, 2008.
Unless you're talking about REALLY high frequencies (radar comes to mind), I'd guess not.
With radar, the transmitted signal is pulsed briefly (microseconds of time) and then the transmitter shuts off while the receiver listens for the returned signal on the same antenna. While the transmitter is on, the receiver is muted.
Don't use an expensive receiver if you're experimenting with this arrangement.
Three more words come to mind. "I see smoke."
Unless you have deep pockets and lots of know-how I do not recommend proceeding with this application.
1 antenna multiple radios
Diamond sells a triplexer. HF/VHF/UHF or VHF/UHF/1.2 Ghz. this allows you to use 1 antenna with 1 feed line x 3 inputs. I use the 1.2Ghz version on my Ts 2000X, works very well with almost no loss. The cost depending on where you buy it is between $69.00-$89.00. I have seen them on E-Bay for 59 bucks. And yes you can receive on the other bands as you transmit on another, no switching involved. Did I just start a sentence with "and"?
Widely spaced transmit/receive frequencies don't interfere with each other all that much. Fairly closely spaced transmit/receive frequencies do (same bands). (I'm really telling you something new, right?) While your idea is possible, I'm too lazy to mess with it, rather try a different way of going about it (hide that @#$ antenna! ).
My Kenwood TM-D710A can rx on both sides of the radio on the same band but when I TX I cannot hear on the same band on the other side, which is good.
is that what you mean?