Batboard

I am setting up a SLR8000 Repeater with capacity plus. This is a UHF Repeater, working with XPR7550 Radios. The problem is it working great for about 30 seconds then the green power light goes red and then it will not work until the repeater is restarted. Then again it will work for around 30 seconds then it goes dead again with the same red light. I believe it is just a programming error can anyone help??? This is single site cap plus not multi site. Thanks

John

Put it into a dummy load, and tell us what happens.

Dummy Loads work fine. doesnt power off at all

Then, I would sweep the xmit line and/or duplexer to find the problem.

To high vswr, I've just put 6 of these into service and if the tx is seeing to much reflected they shut down as you have experienced. Bad Antenna, line, connector, filter....one of those (even filter out of tune).

Thinking about the shut down problem, do you like the SLR8000 better than the MTR3000?

Simple test. Put the antenna directly to the TX connection. If it shuts down, it's the antenna or feedline. If it doesn't shut down, the duplexer may not be tuned correctly.

Put a dummy load on the duplexers antenna connection. Put your watt meter between the TX side of the duplexer and the TX side of the radio. Check SWR there. If your antenna is good, that will show you if the duplexer is reflecting the power back. Could be a bad cable too.

You can see the error log of the repeater using RDAC. It will tell you if the SWR is high.

Is this a single repeater, single site CP system or is there more than one repeater?

johnny1225 wrote:Dummy Loads work fine. doesnt power off at all