Unless you have a panadapter, you'll never work weak stations, if you can't hear them because they're outside your passband! (This is the beauty of 700 Hz!) In fact, many seasoned Elecraft K3 owners feel that using the radio's 400 Hz default (NORM) CW passband setting, is kind of like "viewing the world thru a drinking straw while riding a bicycle". That is, it would be fairly easy to skip right past a weak calling station, without ever realizing it was there.
But even more importantly, prolonged scanning with a 400 Hz passband can be tedious and fatiguing. This is why, band conditions permitting, savvy operators prefer a 700 Hz passband: o "for general CW tuning" -- W3FPR o "for scanning the band (or a pileup)." -- K8GU o "for combing through the pileups with VFO [B]" -- NI0C o "to cruise the CW bands from a wider perspective" -- N1LQ --- - - - --- The next batch is due to arrive May 16th. Demand for these custom filters can fluctuate dramatically, so it's impossible to say precisely when this next manufacturing lot might sell out. (Our best guess is: "April 1st, give or take a few weeks".) A subsequent production run can be expected about 15 weeks thereafter. If you have a sub-receiver or you are considering getting one, then FYI the center frequency offset of individual manufacturing lots, can vary by up to plus or minus 100 Hz. In contrast, the variation across any given lot is typically only plus or minus 5 Hz; yielding superbly matched pairs for diversity reception! --- - - - --- Visit http://www.unpcbs.com to place an order, and for full details including: o Retail price. o The filter's passband response plot. o User comments. o Special terms of sale. o Bandwidth and availability FAQs. o App notes. o An animated slideshow illustrating all five INRAD CW bandwidths. 73, Gary KI4GGX (webmaster) ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
