Cross band repeat aren't really done in pairs per se. Generally you set
your dual band mobile radio to access a 2m repeater and use the UHF side
of the radio in a simplex fashion with an HT to cross band through your
mobile to increase the range of your HT.
In Texas the UHF areas set aside for this are
440.750 - 440.975 Cross Band Repeat - Fixed
445.750 - 445.975 Cross Band Repeat - Mobile
Backyard repeaters are a different matter. These pairs are not assigned
and available for anyone to use on a temporary basis for events like
bicycle rides and marathons, etc. CTCSS tones are required
VHF CH 1 - 145.250 out / 144.650 in
UHF CH 1 - 441.300 out / 446.300 in
UHF CH 2 - 441.325 out / 446.325 in
UHF CH 3 - 441.350 out / 446.350 in
UHF CH 4 - 441.375 out / 446.375 in
I have a Motorla GR1225 setup as a portable repeater to use at events.
The duplexer is tuned in between .325 and .350 which allows operation on
all 4 frequencies without desense. We have had occasion where we start
on one frequency and get interference and have to switch to one of the
other 3
--jv
On 6/8/2020 8:40 AM, SETX Telecom via BVARC wrote:
Texas had, not sure if they are still there after the VHF FM Society
has been changing things without membership voting on it, allocated
several crossband pairs for such use.
In any case, TSQ should be use to prevent lock up and interference. As
well as lowest power needed...typical ham rigs cannot handle broadband
at full power anyway and will tend to burn up the PA if used at high
or even medium power levels in xband rptr mode
On Mon, Jun 8, 2020, 8:22 AM Rob KC5RET via BVARC <[email protected]
<mailto:[email protected]>> wrote:
Hello all,
Was reading one of my facebook groups today and there was a ham
looking to setup a small low powered crossband repeater so he
could communicate reliably with a friend, but he wasn't sure what
to look for.
I'm pretty sure he needs a set of "Non-coordinated crossband
repeater pair frequencies."
Where would someone look for such a thing? I performed a google
search and didn't find a consensus.
My guess was, even though it would be a non coordinated repeater,
he would need to check with the repeater coordinator in his area,
to find out what those frequencies would be.
Thoughts?
73, Rob, KC5RET EM20KE
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________________________________________________
Brazos Valley Amateur Radio Club
BVARC mailing list
[email protected]
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
________________________________________________
Brazos Valley Amateur Radio Club
BVARC mailing list
[email protected]
http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org
