Logical observations. Like all narrow filters, they are useful if you are doing S & P and are willing to tune carefully, but they can be too narrow for a run station where callers may not be right at zero-beat (unless you are willing to use RIT slowly to find them). Dual Passband Tuning does create a quite narrow passband (a pair of them in fact).
73, Don W3FPR [email protected] wrote: > Exactly my findings at MW2I. Normally we dont use dpb as incoming signals > arrive all over the place frequency wise (in arrl rtty 2010 3 people called > over 1.5khz off!) outside the dpb passband. However it does help with really > weak signals when you have QRM > > Dave > > ww2r > > ______________________________________________________________ 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
