RE: [Repeater-Builder] Mastr II UHF Station PA Failure

2005-06-06 Thread Bryan . Dorbert
If the heatsink was very hot, then I would assume that the PA transistors were working. Obviously, there are better methods to verify this. But lets say they were working, I would check the jumper between the PA filter boards. This is a common failure point on UHF PAs as well. Does your

RE: [Repeater-Builder] What is a DB Products 8830 / Sentry 8000?

2005-02-21 Thread Bryan . Dorbert
It is a alarm monitoring unit. With appropriate power sensors it can monitor transmit power, SWR, various voltages, PTT, etc. It is also capable of remotely controlling outputs for control functions. If connected to a phone line, it can also page or call pre-programmed numbers when

RE: [Repeater-Builder] reposting - single antenna, two receivers

2005-02-01 Thread Bryan . Dorbert
That makes more sense Derek. I'm have repeaters setup this way. The bandpass filter can probably be tuned for either receiver freq and it should work fine on the other. You could also get a 1:2 splitter to accomplish feeding each receiver. That way you wouldn't have to worry about the exact cable

RE: [Repeater-Builder] Using two receivers on a UHF repeater

2005-01-29 Thread Bryan . Dorbert
With the repeater tx at 444.975, the second receiver would only be 25 khz away from the repeater transmit frequency! The duplexer wouldn't pass anything to the receiver at 444.950. Bryan N3ST -Original Message- From: ve5sd [mailto:[EMAIL PROTECTED] Sent: Friday, January 28, 2005 8:04 PM

RE: [Repeater-Builder] Repeater audio not passing

2004-09-18 Thread Bryan . Dorbert
I'd be vary suspicious of the pins and contacts on the exciter. Bryan N3ST -Original Message- From: georgiaskywarn [mailto:[EMAIL PROTECTED] Sent: Saturday, September 18, 2004 12:06 PM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Repeater audio not passing I have

RE: [Repeater-Builder] 2m repeater IMD issue

2004-05-05 Thread Bryan . Dorbert
Hello Richard, Have you tried an additional cavity in the rx path? I had a similar situation with a UHF repeater and 800 mhz systems and anadditional cavity worked for my problem. Also, do you have a preamp? If so, where in the rx path is it? You should have all the filtering ahead of