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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