If you're placing the mentioned repeater output into an Arcom RC-210 Repeater Controller, the issue actually sort of with the RC-210 input circuit. The quick fix is to turn off (and disable) the front panel LED display.
You could use a number of "tricks" to drop the COR/COS Voltage down near zero, including an inserted zener diode, 2n7000/VN10km fet, simple resistors in a voltage divider or a small dip form C relay option. If you don't find help... email us back here on the group and we'll be happy to provide some example circuits. cheers, skipp skipp025 @ yahoo.com > "Jerry Steele" <[EMAIL PROTECTED]> wrote: > > On the VXR-7000, the RJ45 pins 1 and 2 are the collector and emitter > respectively of an optoisolator that changes state when the squelch is > broken and the correct pl/dpl is used. www.jammerdave.com/vertex.html > says to connect the pin 1 to the pl detect of the repeater controller > and pin 2 to ground. He also says it is basically an open collector > circuit. > > I tried step 1 and no luck. I then connected a 33k pullup resistor > between 12v and pin 1. I took pin 2 to ground. I keyed the HT on the > correct freq and pl and lo and behold, pin 1 dropped to ~1.3 volts. > Problem is, my controller needs to see more like 0 volts. I looked in > the service manual and it looks like there is a zener keeping pin 1 at > 1.3 volts or higher. > > Any ideas???? > > - Jerry K8CMI >
