Christer and the group. I was delighted to get the two URL's
containing the 30 Hz filter and noise blanker. You might
remember
some years ago the "HDO" phase linear filter. That was when I
was W6HDO rather than K7RR. For years that filter served us
well. I really enjoyed the experimental way of finding least
ringing, so I placed variable resistors in the old design
using
an automatic key. Even the old Williams textbook approach
benefited from experimental "tweaking". 73 Cliff K7RR
C Andersson wrote:
>Could you post a brief text summary of your design?
>73, Bob ZL2CA
PA0LQ filter descriptions:
http://www.alg.demon.co.uk/radio/136/af_filter.htm
http://home5.swipnet.se/~w-54761/pa0lq_filter.htm
73
Christer, sm6pxj
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