I would. :=) I'm not a hardcore ham operator, and one of the big selling points for the K3 for me was getting excellent broadcast radio receive capability (say, on par with a Drake R8B or AOR7030). (I currently run a K2-100 with which I'm very satisfied.)
- Paul, N6LQ --- Dave Martin <[EMAIL PROTECTED]> wrote: > I've seen a number of old U.S. broadcast receivers > with a 10 KHz notch > filter in the audio to get rid of the high pitched > hetrodynes from the > adjacent channels. But the wide IF sure brightens > up the music when > listening to your local honky-tonk station, and > nobody gave a rip how > wide their IF was if their music sounded good. > That's why I was > hoping for the option of going as wide as I see fit > when conditions > allow. But then who (other than yours truly) would > be using a K3 to > listen to the local BC when he could be working CW > while enjoying 100 > Hz selectivity? > > Dave W5DHM > > > > > > The basic reason has already been explained, > however, there are very few > > cases were exceeding 3kHz audio bandwidth is > useful. HF broadcast > > stations use 5kHz channelling, which would only > allow them 2.5kHz with > > brick wall filtering at both transmit and receive > ends, although they > > probably do expect to suffer significant adjacent > channel interference. > > > > MF broadcast stations use 9kHz channelling in > Europe and 10kHz in the > > USA, but I suspect that adjacent channel > interference is less > > acceptable. As they were designed to be received > with LC IF filters, > > with poor shape factors, I suspect they don't even > make use of the full > > channel, and if they did, they would probably be > required to have > > filters which put the adjacent channel into the > filter stop band. > > > ... > > David Woolley > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
