Hi Ken, I concur the brain is a wonderful filter, and it generally is my preferred tool.
The example you give a wide open filter is a good idea, once you learn how to process that info mentally. In contest situations, if I'm running, I generally like to keep my filters relatively broad. Folks call off frequency as they slide up and down the band. (Figuring out if they are really calling you is another matter...) But... In search and pounce, I prefer relatively narrow filtering. In the Top Band contests and the big DX contests (particularly on 40 and 20), the band are so congested that additional hardware help goes a long way towards minimizing fatigue. In addition, many of the little guys can be picked out between the big boys piled close together. I would speculate the same situation holds true if you're say BS7H (pick your favorite rare DXpedition here) trying to pick signals out of 35 kHz of wall to wall needy souls. Or perhaps, if you're trying to hear them thru the band cops, jammers, folks who forgot to go split before transmitting (guilty) and frequency owners... There are valid arguments for both methods. I look at hardware filtering as another useful tool. Cheers, Julius n2wn _______________________________________________ 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
