Hello All Maybe the proof of the pudding is to apply the CM-Choke at the end of your TX/RX coax and replace the antenna connection with a 50 (75) Ohm load.
Then compare any received signals at the receiver with and without the CM choke against what you see with the load applied directly at the receiver. If things are 'cleaner' with the CM-Choke installed that's great. Then you can compare other CM chokes (different core mixes / turns / etc) across the freq-range of interest to obtain the performance you desire. A wide-band RX makes this evaluation markedly easier than making many spot-freq measurements. So far, using several CM chokes on the feedline and connections to the receiver, I have been able to significantly reduce garbage from S-9-plus to about S-5 for a single remaining bad actor repeating itself across 80-meters - something now getting 'in' via the antenna and not thru CM currents on the transmission line. Once the remaining bad-actor is found/killed, 80-meters should be delightfully usable . 73 to every one Dick/w7wkr _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
