I presume you are talking about the ham bands....
At the very least, for 1-way crossbanding the radio that will receive the
signals from your HT must provide an carrier-detect output that will be used to
key the other radio, and you must provide an audio path between the radios.
For 2-way ("full") crossbanding, you would need carrier-detect outputs from
both radios, and audio paths in both directions.
More info would be helpful, as there are ID issues to contend with, depending
on whether you do 1-way or 2-way crossbanding. This is an issue that MANY
(most?) people doing crossband repeat with dual-band ham rigs do not
understand, and consequently, do not do legally. Is your HT single-band or
dual-band? If dual-band, can you hear the repeater(s) directly with it? If
so, you'd only need 1-way crossbanding, and that simplifies things a little...
George, KA3HSW
-----Original Message-----
>From: Jason Cato <[EMAIL PROTECTED]>
>Sent: Apr 23, 2007 8:09 PM
>To: Repeater-Builder@yahoogroups.com
>Subject: [Repeater-Builder] Cross-band Repeating.
>
>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?
>
