Thanks Doug and everyone else! THe thing that tipped me off, was the sharpie note on it as RCC UHF - up until yesterday I had never encountered one of these. The topside half of the internal workings are what made me stop and pause when I took the cover off. Quite different from the other MASTR II's I was accustomed to seeing. The 7 rows in the channel element area all squished together, as well as the ICOMs installed in there. Someone asked to check for the crystals, and they are indeed there, the RX is 454.025 but whats unusual is that the TX elements do not have the frequencies listed on them. They do not appear to have been erased by hand, or scraped off - is that commonplace for units like these?
Having fun learning about this now - makes me want to fire it up and toy around with it some! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn ----- Original Message ----- From: wd8chl To: Repeater-Builder@yahoogroups.com Sent: Wednesday, August 04, 2010 6:50 AM Subject: Re: [Repeater-Builder] Re: Mastr II drift problem On 8/4/2010 9:18 AM, Joe wrote: > Sometimes troubles like this are hard to find because you can't be there > when it is happening. I have found that a Radio Shack Digital Voltmeter > that I have and an old laptop have been handy for such times. I bought > an RS DVM with the RS-232 interface on sale a few years ago. I > connected it to an old laptop that I have via the RS-232 port and run > the simple program that came with the DVM. It records readings over > time and stores them to a file. You can then look at the file and see > if things have changed over a period of time. I've used it to record AC > voltage at sites where I suspected drops in voltage levels and it was > helpful to get things fixed. Definitely not lab quality equipment, but > very helpful in troubleshooting. This setup could easily watch the 10 > volt line or the compensation voltage line. > > Just thought I'd pass this idea along. > > 73, Joe, K1ike Really??? What's the model of that DMM? We could use that here! Jim
