A method of taking the COR I have used on a radio that I did not have the
internal schematic is to locate the wires going to the "BUSY" LED on the front
panel and insert the diode of an Opto Isolator in series with the busy LED and
take the COR from the transistor of the Opto Isolator. You can get either a
positive going COR by connecting the collector to a positive supply and taking
the signal from the emitter, or a negative going COR by connecting the emitter
to ground and putting a pull up resistor to the collector with the signal taken
from the collector.
73 - Jim W5ZIT
--- On Tue, 7/28/09, Scott Zimmerman <n3...@repeater-builder.com> wrote:
From: Scott Zimmerman <n3...@repeater-builder.com>
Subject: [Repeater-Builder] Too stupid to run Google??
To: Repeater-Builder@yahoogroups.com
Date: Tuesday, July 28, 2009, 3:38 PM
I *know* this is out there somewhere, but apparently I am
WAYYY to
stupid to run google right now.
I have a TM-331 I am making in to a single frequency remote base. Where
can I find a COR in this radio? I see TONS of references to using an
RBI-1, but I am only using ONE channel.
Apparently I have been out in the sun too long or something. Maybe
Google is having trouble reading my mind... Yea, That's it!!
Scott
Scott Zimmerman
Amateur Radio Call N3XCC
474 Barnett Road
Boswell, PA 15531
