Hi Jesse, Working from a memory polluted by a few bad choices back in the late 70's... There should be three most common range of the UHF MSR-2000. The low UHF Range was about 409 to 430 MHz, the formal band edges escape me.
The mid UHF range operation is 450 to about 490 typical. The T-Band Range operation was about 483 to 512 MHz. There are a number of differences in the PA by band segment and by version number. The TLE-xxxx "B versions" were much better than the TLE-xxxx "A versions". The harmonic filter was revised so it doesn't unsolder itself at the high current points and cause the PA to poop (fail). Both the ceramic substrates and the transistor "modules" change by band segment as does the harmonic filter. The 450-490 range PA is pretty good almost to 495 MHz in many examples & the 483-512 PA is not happy about going very far below the normal band edge. I have seen and used examples that operated well above their specified range but few work well below their band edge without reduced power, getting really hot or some other issue. Most of the low range UHF MSR units were made for places like Canada and special aps. Those binder manuals have the part numbers for those PA's as-built. And to add to the mix... many of those PA's are the low power ~40 watt packages. Trying to find the 110 watt low range UHF PA is right up there with "hens teeth". cheers, skipp > "Jesse Lloyd" <[EMAIL PROTECTED]> wrote: > Hey all, > > Was there ever a MSR 2000 built that covered the low UHF split 410ish to 440ish? > > I know of the 450-470, 470-494, 494-512 splits, but is there another > low band one? > > If so does anyone know the receiver part and PA part numbers for it? > Thanks, > Jesse >
