Some of you may recall that we discontinued our 5-pole, 200-Hz filter last year. Our replacement for this filter has cleared all of our stringent test hurdles and is now available on our order page.
The new filter (KFL3C-200) has six poles rather than five, significantly improving skirt selectivity. And at the center, the passband is 200 Hz at 6 dB down -- ideal for CW and narrowband data operation in high-QRM or QRN situations. (Our 5-pole filter was already a favorite of 160 meter CW contest veterans. The KFL3C-200 takes it up another notch. Maybe two.) Plots for all of our filters, including an overlay comparing the KFL3A-250 (INRAD 8-pole) to the new KFL3C-200, can be found at: http://www.elecraft.com/K3/K3_filter_plots.htm Next week, when we're all recuperating from the Visalia DX convention, we'll provide a link to a plot showing the 5-pole vs. 6-pole filter passband. The improvement in skirt selectivity is quite pronounced. This filter can be installed in a K3, K3S, or the sub receiver. To order, see: http://www.elecraft.com/elecraft_prod_list.htm#k3filters 73, Wayne, N6KR Eric, WA6HHQ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
