[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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