[EMAIL PROTECTED] wrote: > > > At 4/24/2007 07:34, you wrote: > >Jason Cato wrote: > > > > > > > > > Can someone tell me what equipment I will need to cross band repeat a > > > Uniden SMU4525KT UHF into an Icom 2100H VHF? I want to be able to > > > move around my property with my H/T, and still be able to get into > > > repeaters my H/T can't reach. > > > > > > Also, can I use the same multi-band antenna for both at the same time > > > with a diplexer? Or would the VHF transmission kill the UHF > > > reception, or vice versa? > > > >Well, I can't answer all, but I can answer some. Typically, small > >cross-band repeaters are HALF duplex, not full duplex. That means the > >receiver of one is connected to the transmitter of another (on a > >different band). This is the way many mobile rigs which do this work. > > That's not the definition of "half duplex" that I've been using. To me, > "half duplex" means that transmission occurs on a different frequency from > reception, but only one at a time, not simultaneously. Full duplex is > simultaneous transmission & reception using separate frequencies. In both > cases, whether the two frequencies are within the same amateur band or not > is irrelevant. > > So one could in fact operate "full duplex" on a dual-band radio if it has > simultaneous transmit & receive capability. > > Bob NO6B
Bob, You're right, my mistake. The OP was asking for information on cross-band repeating and that's what I gave him. I should not, however, labeled it as "half duplex". -- Larry W1HJF rapp at lmr dot com
