On May 7, 2010, at 8:52 PM, Casey wrote: > Hi All, > > I didn't see in the K2 spec what the TX audio response is, but I assume > it tops out at 3KHz. > Has anyone seen a K2 mod to widen this range, to, say, 4KHz or higher?
Audio response is set primarily by the OP1 crystal filter. You could probably substitute a different set of capacitors / crystals and taylor the response. However, widening the filter will tend to worsen the near signal IMD rejection. I can't imagine why anyone would want to do this, particularly if they are using the "2.6" filter already. Bill Coleman, AA4LR, PP-ASEL Mail: [email protected] Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 ______________________________________________________________ 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
