Sam, Thanks a lot for your answer. It would be nice if this sort of information were documented. If it is then I missed it even though I did a full document search for the letters FC.
phil On Jan 31, 2014, at 11:23 AM, Sam Morgan <[email protected]> wrote: > > yes FC means Frequency Center > the astric * before the number indicates the APF shift is in the center > the .68 sez your center (your cw pitch) set to 680hz > > so if you saw .670 or .690 > there would be no * and your APF center > would now be 10 hz up .690 or down .670 > > some have found the ringing they experienced with APF > was fixed by shifting the APF center off by maybe 10-20hz > and using the RIT moved their receive the same amount > > On 1/31/2014 12:48 PM, Phil Hystad wrote: >> I have had my K3 for four years but rarely make use of the passband >> tuning features. Today though I was experimenting with APF and the >> passband controls and learned that I really do not know what I am >> doing. >> >> In particular, the VFO B display is a mystery to me during passband >> tuning and APF SHIFT tuning. For example, in passband tuning (APF >> not enabled), the VFO B display says FC and then a number like 0.70 >> or whatever. What does "FC" mean (I can guess, but that would not be >> useful) and what is this number. I scanned all the documents I have >> and have not found descriptions of the content of the VFO B readout >> during passband tuning. I know it has something to do with shifting >> the frequency of center (I think) so maybe FC means Frequency Center. >> Also, there is an asterisk in the field, like: FC *0.68. Maybe >> someone can interpret the meaning of that. >> >> If I knew the definition for passband tuning for the VFO B field >> content I could probably guess at the meaning of the APF enabled >> display which is similar such as: APF *0.68. >> >> I have found lots of description of passband tuning and that part of >> the display showing the passband width and position but nothing >> describing the VFO B contents (not covered in documentation on >> alternate VFO B displays either). >> >> 73, phil, K7PEH > > > -- > GB & 73 > K5OAI > Sam Morgan ______________________________________________________________ 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
