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Seems that a duplexer is somewhat expensive. They are pre-tuned for a specific pair of in/out freqs too. This makes it harder to find and perhaps won't line up with the available freqs given by the freq coordinator too.

Is there a problem with making two GP 5/8 wave antenna and using them one to each radio? Since the TX freq is .600Mhz from the receive freq on the 2m band; there shouldn't be any interference. Right/wrong?

So, let's say that we are using a duplexer. How are the two radios wired together? Out of the speaker of the RX radio and then -?- into the input of the transmit radio? Or would you use a computer sound card in/out and the Echostation software to control the works?

[QUOTE="Robb, post: 361669, member: 8446"] Seems that a duplexer is somewhat expensive. They are pre-tuned for a specific pair of in/out freqs too. This makes it harder to find and perhaps won't line up with the available freqs given by the freq coordinator too. Is there a problem with making two GP 5/8 wave antenna and using them one to each radio? Since the TX freq is .600Mhz from the receive freq on the 2m band; there shouldn't be any interference. Right/wrong? So, let's say that we are using a duplexer. How are the two radios wired together? Out of the speaker of the RX radio and then -?- into the input of the transmit radio? Or would you use a computer sound card in/out and the Echostation software to control the works? [/QUOTE]

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