On 7/29/2019 10:33 AM, Grant Saviers wrote:
Here is what I used when I had the same problem 50kw line of sight 4
miles 1MHz. Expensive, but worked very well.
http://herostechnology.co.uk/pages/RF_Filters.html
Yes, at 1 MHz, this would work well. Other hams would be
advised that it is ineffective for QTH's with stations
high in the BCB. The data sheet goes to a lot of trouble to
obfuscate this. At my QTH, I have a strong BCB station
right at 1.7 MHz. This fact rules out a large number
of filters. You can see in the photo in the data sheet that
only 3 toroids are used. This explains the poor performance
at 1.7 MHz. As always, YMMV.
Rick N6RK
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