[TenTec] Active noise cancelling. Was "Re: Scads of used Icom IC-7300"

[Katz Ajamas]

I can not use the MFJ on 160 without a trap on the main antenna because of
strong local stations causing all manner of intermod. The solution will be
two antennas for RX phasing. Two of the others cancelling circuits do not
look any better on paper. The third offers no paper but at $600 it must be
good! ;-)

SEM diagram: http://f-10255.pagesperso-orange.fr/accessories/sem/sem.htm
ANC-4 diagram: https://timewave.com/support/ANC-4/ANC_4TW8x11a.pdf
MFJ-1025 diagram:
http://www.mfjenterprises.com/support.php?productid=MFJ-1025
DX-Engineering NCC-X diagram: ?


73, -Bob ah7i/w4