> I am building a large repeater system here in SE Kansas for SkyWarn > and I am wanting to use the RVS-8 Voter. > > Our system uses Motorola Maxtracs for pretty much every aspect > of our giant 15 county coverage repeater. > > Has anyone successfully used Maxtracs with this Voter? If so, > how did you interface them?
Rear panel connections throught the 16 pin jack. Like most people. In the case of Kenwood TKR-820 Repeaters I had to make my own interface board. > The voter has room for up to 8 sattelite receivers. I have a > bank of UHF Maxtracs all tuned to different frequencies as the > link receivers. They are all identical, and have 16 pins on the > rear. I had planned to use PIN 8 COR and PIN 11 audio to feed > the voter. COR is in ACTIVE HI on the Maxtracs, as such in > the voter. Might be better to build and include a simple logic buffer circuit. One properly selected and applied fet or transitor circuit would probably work very nice. > The trouble I am having is getting PTT through the voter to be > consistant, and by this I mean, only light PTT when there is an > incoming COR signal from one receiver. It seems like the COR > light on the voter is pulsing all the time, and when a good COR > is detected, the COR on the voter goes solid and I can see the > SNR counter go up when I talk through it. You probably need to isolate the COR/COS output line (pin 8) with the simple buffer circuit I mentioned. The description reads like you're getting some type of logic pin dc interaction between the radios and the voter. > Anyone have any ideas? I try not to... > Thanks advance, > Tyler > K0FCQ Reply back to us if you need specific information about how to isolate the radio logic output line from the voter. I myself like active low logic lines where possible. cheers, s.
