I agree. We have had similar problems with 146.745 and 147.345,
146.67, and 147.27, 146.625, and 147.225 here locally. All of these
were traced to mixing in the PA stage of the repeaters. In some
instances, isolators were needed on both repeaters to eliminate the
problem totally.
Kevin
Joe Montierth wrote:
>The isolator might fix the problem. The second
>harmonic of the 146.7 is 293.4. If you subtract 147.3,
>it comes up right on your input, 146.1.(Classic 2A-B
>intermod) Same thing is going on with the other freqs.
>Could also be mixing in your RX, or about any other
>non-linear spot between the two towers.
>
>Joe
>
>
>--- Q <[EMAIL PROTECTED]> wrote:
>
>
>
>>Trying to troubleshoot an intermod??? problem
>>between two repeaters. The
>>146.10/.70 repeater's receiver gets blasted by the
>>147.90/.30 transmitter
>>but only when they are both transmitting. Yes,the
>>transit freqs are 600khz
>>apart and they are only 5 miles apart. Would a
>>circulator help this problem?
>>Also have similar problem between the 146.07/.67 and
>>the 147.87/.27
>>repeaters when they are both keyed up. Ideas?
>>
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