[600MRG] WD2XSH/20
Rudy Severns
n6lf at arrl.net
Mon Oct 28 19:19:20 CDT 2013
I have finished my narrowband rx filter for 475 kHz and will be listening
tonight to see if I can hear any of you. The filter really knocks the BC
stations dead with about 80 dB of attenuation at 550 kHz and only about 2 dB
at 475 kHz. At a 100 Hz bandwidth my noise floor with the filter is
about -80 dBm. Not wonderful but better than I feared. We'll see how it
works.
After listening I'll turn on the CW beacon for a while if it's not too late.
73, Rudy
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