Geoff, GM4ESD, wrote: A bonus when using a flip-flop is that it can be inhibited by noise pulses coming from a "noise receiver" tuned outside of the band when you want noise blanking without having to put a noise gate in the main signal path which might compromise dynamic range, and the blanker will not be affected by in-band signals. Certainly it punches holes in the signal like any other blanker, but after almost 10 years of use I am still happy with the system.
------------------------------------------- An interesting idea for noise blanking, Geoff: turning the L.O. on and off. But keying an oscillator like that always produces sidebands around the oscillator frequency. That has its own issues when that oscillator is used as an L.O. I wasn't aware of any dynamic range issues when using a noise blanker. The big issue I've noticed is the appearance of the inevitable mixing products. They are not normally a bother, but I have noticed an odd signal from time to time when using the noise blanker and, sure enough, it disappeared when I turned the blanker off. Ron AC7AC _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
