Hello Pierre, It is most likely not a roofing filter issue. Rather it is probably a local oscillator leakage issue. Set the "RX ISO" menu item to "ON" and I suspect the problem will significantly diminish, if not disappear. See page 38 of the current KX3 owner's manual (Rev B4) for this menu item and for a discussion of when it may be helpful. Be sure to first refer to the "Tech Mode" section on page 35 to unlock this menu item.
73 de JP WF4Z On Mon, Jul 23, 2012 at 10:34 PM, Pierre <ve2...@videotron.ca> wrote: > Hello to all. > > Maybe that I don't understand the real utility of the roofing filter but I > observed this. Last saturday, we were on a SOTA summit using two KX3s about > 40 feet appart transmitting CW at 5 W. And even with the roofing filters > on, we heard each other's sending as a diffuse noise. I know that changion > RX shift to 8 disable the roofing filters, but we were not using that shift. > > So, am I missing something about the use of these filters? Are they > designed for operations with operators near each other like SOTA activation > on a crowded summit ? > > 73, de VE2PID KX3 S/N 190 > ______________________________________________________________ > 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 > ______________________________________________________________ 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
