Full-Duplex mobile setup (analog) - what equipment?

Johnny Grep · Post by **Johnny Grep** » Mon Feb 12, 2007 6:46 am

Hello,

I am looking for a mobile conventional full-duplex solution for interconnect purposes. What do you guys use for such a setup? Of course a handset would be necessary with a DTMF panel (on the radio or on the mic, no prob). BTW there is no cellular service available at the location where this system would be installed.

Thanks

W6JK · Post by **W6JK** » Mon Feb 12, 2007 11:49 am

Micor and Mitrek gear can be made to run duplex with a single radio. Anything later would require two.

'JK

Bruce1807 · Post by **Bruce1807** » Mon Feb 12, 2007 12:39 pm

Anything with tx and rx xtals. or seperate PLL for tx and rx.

440roadrunner · Post by **440roadrunner** » Mon Feb 12, 2007 12:59 pm

Is this on VHF or UHF? Sounds like you need an old fashioned VHF "mobile phone" radio. You'll need a duplexer, and if the frequency pair is closer than about 5 mhz or so, the duplexer will be big and expensive, on VHF

tkiuntke · Post by **tkiuntke** » Mon Feb 12, 2007 2:54 pm

It might not be exactly what you want but the Moto R1225 transceiver from the GR1225 repeater will do full duplex with a duplexer added.

Just my $.02.

Toby
KC0FRU

JohnG · Post by **JohnG** » Mon Feb 12, 2007 8:25 pm

The FDX Maxtrac mobile is a great full duplex conventional radio with DTMF and handset, if you don't mind 800 MHz.

Johnny Grep · Post by **Johnny Grep** » Tue Feb 13, 2007 4:26 pm

I forgot to mention "with new Motorola equipment"

This client wants to buy brand new radio equipment for this setup.