[NHRC-user] NHRC 4 and a control receiver

[Kevin Custer]

"K4MQF ..." wrote:

> I have an NHRC 4 controller that controls a 2 meter repeater and I have a
> full time link to a 440 repeater on the secondary side.
> Question comes up about remote control of this site. I know I can upgrade to
> the NHRC5 controller and have the added port. My question is on the NHRC 4 .
> Has anyone done this before ?
>
> I am looking at the schematics for both the 4 & 5. I am looking at R35 on
> the NHRC-4 schematic.
> 1.  removing one side of it and putting in a mono plug in the same
> configuration as the NHRC-5. routing it to a control receiver. any thoughts
> on this before I do it.

It should work fine.  All you need to do is provide the controller with audio
and a COS so the DTMF decoder will process the tones execute the commands.
There is likely several ways to do it so I wouldn't be afraid to try something.

Kevin