On Mon, 8 Dec 2008, n9wys wrote: > Now - here's the WEIRD part. when I was at the tower with another > tech and replaced the fuse the time before the last failure, we tried > to use his DMM to check the P/S fuse for continuity. His meter acted > as if the battery was dead - but later investigation revealed that the > meter was getting hit with RF from another transmitter at the site. > So I'm thinking that the RF problem may or may not be directly related > to MY transmitter. (There is VHF 100W MICOR transmitter directly next > to my equipment rack that is on 161.325, and transmits 24/7/365.)
If you can, see about getting a spectral plot of the machine on 161.325; it's possible that it could be recieving RF in the transmitter port and mixing as well as amplifying the mix and generating garbage all over the place. However, for the DMM to act up -- you might really be in a high RF field, which shouldn't happen if you're on the ground unless there's a 50KW transmitter only 100 ft up. Might be time to invest in a NARDA RF monitor. -- Kris Kirby, KE4AHR <[email protected]> But remember, with no superpowers comes no responsibility. --rly
