Can anybody tell me if this can be done if you use the 7800 as a cross band repeater but lock out transmitter access using PL tones so it only operates in One Direction on the 2m side. Will the radio internals duplexer function driving a hundred watt amplifier or is it going to be sensitive alone this 70cm side. I have a bridgecom cross band repeater with one antenna that I'm use that a diamond duplexer that works just fine it's rated for 800 watts Bridge Commons Drive in a 200-watt Henry amp on the Troubadour side no problems with that. However I've sent the repeater and a new irlp node to be interfaced at bridgecom. So I'm using a 7800 has a one-way cross band repeat 445 750 receive 145 500 transmitted with the 7800 duplexer being built in and only having one output and receive not able to use the duplexer which feeds a diamond High Gain repeater antenna dual band. Anybody know any options.
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Tyt-7800
- Thread starter N6ZLW
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It will not work with a duplexer because the receive and transmit both use the same SO239 port. Trying to use it that way would simply destroy the receiver...
I frequently cross-band my 7800's (both home and car) so I can use my little UHF HT around the property here, and with 45 watts it works just fine.
I frequently cross-band my 7800's (both home and car) so I can use my little UHF HT around the property here, and with 45 watts it works just fine.
7800 Mobil with 2 meter amp
My question wasn't about using a duplexer. My question was has anybody ever driven in amplifier with a 7800 mobile it has a moderate 50-watt built-in duplexer. I was curious if anybody has ever driven in amp before. Very simple to lockout UHF from transmitting and it just being used as a cross band UHF and VHF out that was my question nothing to do with using the duplexer off the repeater
My question wasn't about using a duplexer. My question was has anybody ever driven in amplifier with a 7800 mobile it has a moderate 50-watt built-in duplexer. I was curious if anybody has ever driven in amp before. Very simple to lockout UHF from transmitting and it just being used as a cross band UHF and VHF out that was my question nothing to do with using the duplexer off the repeater
You've missed the point I was making.
Any amplifier must be inserted before the duplexer. You cannot do that with an internal duplexer.
[transmitter] ---------[amplifier]-----------[duplexer]-------[antenna]
[receiver]-----------------------------------------|
Any amplifier must be inserted before the duplexer. You cannot do that with an internal duplexer.
[transmitter] ---------[amplifier]-----------[duplexer]-------[antenna]
[receiver]-----------------------------------------|
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