The MaxTrac/GM300 radios use one of several methods for changing channels
remotely:
1. one input line to revert to a known channel,
2. two input lines: one to go UP, one to go DOWN,
3. four input lines which you program with a binary code: 0000 thru 1111 to
select the desired channel.
Of the various methods, the one where you tell the radio which channel to go to
is far more reliable. The others depend on you knowing where the radio is
before you tell it to change because there is NO feedback of any kind.
If you want something that's very user-friendly and may even provide feedback
in some way, you're better off with an Icom, Kenwood, or Yaesu radio. The
Motorola link radios you're using just don't have what you want.
Bob M.
======
--- On Sat, 12/27/08, rrath <rr...@charter.net> wrote:
> From: rrath <rr...@charter.net>
> Subject: [Repeater-Builder] GM 300 Question
> To: Repeater-Builder@yahoogroups.com
> Date: Saturday, December 27, 2008, 11:05 PM
> I have a GM300 as a link radio on my
> repeater. We will change channels
> using the accessory jack on the back
> and the NHRC DTMF Remote +. My
> question is this:
>
> Has anyone done the same thing? If
> so, how do you know what link
> channel you are on? I know you are
> thinking the channel you DTMF'ed to
> go to. Correct, but do you have a
> confirmation report over the repeater
> confirming the link freq? We would
> like some sort of confirmation report
> over the repeater. Any thoughts or
> ideas or what worked for you. Thank
> you.
>
> Rod kc7vqr
