On 5/11/14, 11:00 AM, Drax Felton wrote:
I recently put up a phased set of four 2m meter antenna for EME to find out
that the front end of my IC-9100 is being blasted by pager intermod.
I got a notch filter for the frequencies involved from PAR Electronics.
Question is now: Where inline is the best place to put the filter?
Before the pre-amp, since (hopefully) the intermod is being created by
overloading the input of the LNA.
Pray that you're not getting intermod ahead of the feedpoint (e.g. from
rectification at a dissimilar metal junction).
Before or after the mast mounted pre-amp? Or down at the radio end?
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