There is one legal problem with using a dual-band rig as a crossband repeater.
Both the 2-meter and 70-cm sides are ham transmitters, and must be ID'd every 10
minutes and at the end of every series of transmissions, just like every other
station and repeater. See this article:

How can I legally make my VHF/UHF station into a crossband repeater?
http://www.arrl.org/FandES/field/reg...l#_Toc70492016

Some people say "In an emergency, all rules are out the window, and anything
goes." Maybe, but I doubt it; I think ID rules still apply during emergencies.
But whenever you practice communication procedures (and you must practice to
make sure it will work in an emergency), all the rules apply.

73 de Dick, AC7EL

On 23 Feb 2007 16:34:15 -0500, Steve Bonine wrote:

As the time of year approaches to begin thinking about hurricanes and
disaster communications, I'm going to upgrade my 2-meter rig with one
that is capable of crossband repeat. I would like for this same radio
to double as my in-shack equipment during normal times.

I'm looking for something with enough power to handle marginal
conditions, rugged and able to handle high temperatures and long duty
cycles, and reasonably easy to operate in the field. (I don't mind
needing a computer and software to set up lots of memories, but I need
to be able to program in an unknown repeater in the field when the
computer isn't available.) Naturally the vendors assure me that all
their new gear can do this, but somehow I'd rather hear it from people
who have actually done it in the heat of battle.

73, Steve KB9X
73 de Dick, AC7EL

"Dick Grady AC7EL" wrote in message

There is one legal problem with using a dual-band rig as
a crossband repeater. Both the 2-meter and 70-cm sides
are ham transmitters, and must be ID'd every 10 minutes
and at the end of every series of transmissions, just
like every other station and repeater. See this article:

There's another problem as well in some countries, it's not permitted at
all in the UK (and the rest of Region 1 AFAIK) :-(

Ivor G6URP

Dick Grady AC7EL wrote:
There is one legal problem with using a dual-band rig as a crossband repeater.
Both the 2-meter and 70-cm sides are ham transmitters, and must be ID'd every 10
minutes and at the end of every series of transmissions, just like every other
station and repeater.

This is an interesting point, and one that I had not considered. I
thought about ID, but not on the UHF output of the crossbanding unit.

I don't remember seeing any available gear that supports an automated id
for this transmitter, but then again I wasn't looking for it
specifically. Anyone know of a rig that can do the id?

73, Steve KB9X

On Feb 25, 5:05 pm, Steve Bonine wrote:
Dick Grady AC7EL wrote:
There is one legal problem with using a dual-band rig as a crossband repeater.
Both the 2-meter and 70-cm sides are ham transmitters, and must be ID'd every 10
minutes and at the end of every series of transmissions, just like every other
station and repeater.

The sure-fire method I use is to use a dual-band HT and go over to the
2-meter input side and ID once every ten minutes. Thus all frequencies
are covered for ID.

"Mike Mc" wrote ...
Steve Bonine wrote:
Dick Grady AC7EL wrote:
There is one legal problem with using a dual-band rig as a crossband
repeater.
Both the 2-meter and 70-cm sides are ham transmitters, and must be ID'd
every 10
minutes and at the end of every series of transmissions, just like
every other
station and repeater.

The sure-fire method I use is to use a dual-band HT and go over to the
2-meter input side and ID once every ten minutes. Thus all frequencies
are covered for ID.

Doesn't an ID originating on the 70-cm link end up being
transmitted on *both* frequencies? Am I missing something?

Doesn't an ID originating on the 70-cm link end up being
transmitted on *both* frequencies? Am I missing something?

Not on the 70-cm side coming OUT of the mobile radio. That's why you
come in on the 2 meter input.

"Richard Crowley" writes:

"Mike Mc" wrote ...
Steve Bonine wrote:
The sure-fire method I use is to use a dual-band HT and go over to the
2-meter input side and ID once every ten minutes. Thus all frequencies
are covered for ID.

Doesn't an ID originating on the 70-cm link end up being
transmitted on *both* frequencies? Am I missing something?

I thought the point of cross-band repeat was that input and output
frequencies are so far apart that you don't need cavity filters.
Which is why you can do it in a simple transceiver. If true, what you
send to it on one band only gets transmitted on the other
band. Correct me if I'm wrong.

73 de LA4RT Jon, Trondheim, Norway