On Sat, 24 Apr 2010, Mike Besemer (WM4B) wrote: > The issue disappeared over the winter months. If it's a hot, sunny > day you can be sure the problem will be present. A hot, cloudy day is > also a fairly good bet. Also, a cooler, sunny day will bring it out. > Cool and cloudy or cold and sunny do not allow the problem to > manifest. The issue has been present during and after several days of > rain, so that seems to eliminate the 'rusty bolt' syndrome. I tend to > believe it's an amplifier mounted on a pole or tower someplace that's > going spurious with heat, but that is just a theory. Beam headings > tend to point to the paging transmitters rather than the possible > mixing source, which is baffling me as well.
Does the paging transmitter have a circulator, or a bandpass cavity between it and the antenna? Does it stay on one frequency or hop around? -- Kris Kirby, KE4AHR Disinformation Analyst
