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630 Meter Reception - Start Cheap and Simple
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Topic: 630 Meter Reception - Start Cheap and Simple (Read 32281 times)
K0OD
Member
Posts: 3039
RE: 630 Meter Reception - Start Cheap and Simple
«
Reply #30 on:
December 05, 2017, 06:25:02 AM »
Common-Mode Chokes by Chuck Counselman, W1HIS
http://www.yccc.org/Articles/W1HIS/CommonModeChokesW1HIS2006Apr06.pdf
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N0YXB
Member
Posts: 1663
RE: 630 Meter Reception - Start Cheap and Simple
«
Reply #31 on:
December 05, 2017, 09:19:16 AM »
Good stuff, thank you Jeff and Bob.
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K5DN
Posts: 26
RE: 630 Meter Reception - Start Cheap and Simple
«
Reply #32 on:
December 09, 2017, 08:46:46 AM »
The CM choke I am using is the Murata 50475C, which is over 10K Ohms at 475Khz. It's an SMT part, so not so easy to handle for breadboard construction.
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KM1H
Member
Posts: 11155
RE: 630 Meter Reception - Start Cheap and Simple
«
Reply #33 on:
December 09, 2017, 05:05:13 PM »
Quote
Common-Mode Chokes by Chuck Counselman, W1HIS
Fine at 630M but K9YC disagrees about it on the high HF bands in his common mode papers.
Carl
Former YCCC member
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630 Meter Reception - Start Cheap and Simple