If I'm to understand, would this cavity betuned to notch the 132.950 Mhz frequecny? Whatever it is that is interefering is an intermittant problem, as it is only evident at times. I have noticed over the past few days that the audio on the repeater gets garbled up, but then when the repeater is at rest for a few minutes, it goes back to normal, and may not do it again for several hours.
Mathew
Bob Dengler <[EMAIL PROTECTED]> wrote:
At 7/6/2005 07:55 PM, you wrote:
>I'm looking for something to replace this repeater. I'm not sure if
>it is the Vocom Amp, Antenna, Exciter or just plain messed up. I'm
>told the GE Mastr II's are easy to convert. How true is this. Does
>any one have one lying around. Or who has what available. Must be
>price competative, as I've spent more than I should have. I've been
>through this repeater a dozen times today, thought I had it cured, but
>then it starts back up with interference on 132.950, then I find if I
>goto 133.300 I can hear the repeater just as if it were on that
>frequency.
When you say you can "hear" your repeater on 133.300, do you mean just
locally or can someone a mile or more away hear it? Locally, you will
spurs 80 or more dB down from your carrier (-80 dBc). These are of no
concern as they won't be detectable more than a mile or so away from your
repeater.
The G.E. Mastr IIs are fairly easy to convert, as are the MVPs (the
portapeater I showed you is an MVP). However, I think it would be easier
to just get your HiPro exciter cleaned up. If you have verified that the
spurs are coming from the exciter, you can put a pass cavity tuned to your
output between the exciter & amplifier & the spur problem will be fixed.
> So I am at a lost here. It's like it is riding along
>something, every so often it gets bad, but then it disappears and is
>gone for awhile.
Is this happening to the exciter output, or is this a separate problem?
Bob NO6B
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