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 ______________________________________________________________ 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
