Russ, you may have to spend more on whatever you're using for power than you're
saving with those radios, as they pull 1.6 amps combined even on standby
receive. Also, develop a plan to keep the transmit radio's heatsink cooled,
even in low power mode. But plunging ahead...
Your controller can work with either COS ("carrier-operated switch") or derive
that signal itself. If you can find COS in the Icom radio, you don't need
discriminator audio, and can couple audio from anyplace handy, including the
external speaker jack if it won't be accessible to passersby. You will need to
lift one side of a capacitor on the controller board to use de-emphasized,
non-discriminator audio.
On the other hand, if you can provide the controller discriminator audio, you
don't need COS - the controller will make its own. The CES docs actually seem
to favor this approach.
The 2200 doesn't provide the needed signals on its accessory connector, but
there are leftover pins there you could use to get disciminator audio and COS
out of the radio cleanly. Get the owners and service manuals, available through
online search.
73,
Paul, AE4KR
----- Original Message -----
From: Russell
To: [email protected]
Sent: Monday, March 15, 2010 11:33 PM
Subject: [Repeater-Builder] cor location in an ic-2200h
Hi, I am building a portable repeater for our ARES Club.
I have 2 Icom IC-2200H 2 mtr units, a ces rm-10 controller.
I am new at this building, and cannot decipher the info
given by the controller instructions.
It advises to use the radio cor connection and here is where I'm
stumped.
It also wants a connection at the output of the discriminater
circuit.
I have been a tech over 35 years, this issue is causing my teeth
to fall out, I already lost most of my hair.
I would really appreciate any help you might have.
73==Dan w2rdt
BTW: I know these are not the best units to work with.
Financially right now, it is all we could afford.
