Thanks to all for replies and tips. Turns out that the radio as I received it (factory assembled) had the “xfil3” setting for the roofing filters at “not install” rather than at “nor”
I changed the setting to “nor” and now the roofing filters do kick in as I narrow the BW with the PBT control. 72, Jeff KB3DX ______________________________________________________________ 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