Topband: 160M BCI

[R. Earle Sanders]

I live perhaps 3 miles airline from an am broadcast station operating on
1610 Khz.  I use a full wave delta loop fed at the apex(approx 90ft) with
rg213 coax.  The loop tilts to the west and the two west supports are at

approximately 30 feet.  When I use the loop directly to my kenwood
TS570S transceiver thru the built in antenna tuner I have what I judge good
results.  Recently I purchased an Ameritron AL 1500 amp and a Nye Viking
tuner.  When I tune up these two new units I get S9+ reception
of the AM station at 1890 Khz(I like to operate in a net at 1892.5).
The result is catastrophic for comfortable operation.  I also get the AM to
a lesser extent on 75 meters but thankfully not in the DX window.  In both
cases I can eliminate the BCI by going direct to the loop with the
transceiver and using the internal tuner.  Any suggestions on how the
proceed with the Hi Power/Nye Tuner and eliminate the BCI.  I have
already considered asking the AM station to relocate to another county
but supect a less than favorable response to that if pursued.  Is there
a workable filter system that would attenuate the BCI?  What think Ye?


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