Question on frequency when in fine/medium/coarse
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Question on frequency when in fine/medium/coarse
 
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When the K3s is in Coarse tuning mode, showing 100 Hz steps, are the 10 Hz
and 1 Hz settings retained from wherever they were, or are they jammed to 0's? In other words, if the dial reads 7010.1, is the K3s running on the frequency 7010.100 or possibly 7010.1?? where the ?? are whatever happened to be dialed in before going to Coarse tuning? Thanks, Bob Novas - W3DK ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Question on frequency when in fine/medium/coarse
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Bob, I just tested it. It looks like the undisplayed digits are retained. My example 7.02647. Select coarse 7.02644 tune around and return to 7.0264 and select medium returns to 7.02647. 73, Bill WE5P > > On Oct 17, 2019 at 08:23, Bob Novas via Elecraft <[hidden email]> wrote: > > > When the K3s is in Coarse tuning mode, showing 100 Hz steps, are the 10 Hz and 1 Hz settings retained from wherever they were, or are they jammed to 0's? In other words, if the dial reads 7010.1, is the K3s running on the frequency 7010.100 or possibly 7010.1?? where the ?? are whatever happened to be dialed in before going to Coarse tuning? Thanks, Bob Novas - W3DK ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Question on frequency when in fine/medium/coarse
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Sri, when selecting coarse to 7.0264 not 7.02644. Fat fingers 73, Bill WE5P > > On Oct 17, 2019 at 08:31, Bill Weaver <[hidden email]> wrote: > > > Bob, I just tested it. It looks like the undisplayed digits are retained. My example 7.02647. Select coarse 7.02644 tune around and return to 7.0264 and select medium returns to 7.02647. 73, Bill WE5P > > On Oct 17, 2019 at 08:23, Bob Novas via Elecraft wrote: > > > When the K3s is in Coarse tuning mode, showing 100 Hz steps, are the 10 Hz and 1 Hz settings retained from wherever they were, or are they jammed to 0's? In other words, if the dial reads 7010.1, is the K3s running on the frequency 7010.100 or possibly 7010.1?? where the ?? are whatever happened to be dialed in before going to Coarse tuning? Thanks, Bob Novas - W3DK ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message deliver! ed to wea [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Question on frequency when in fine/medium/coarse
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But, the question is - are the undisplayed digits retained but not used, or are they actually utilized in determining the frequency? I’ve been setting my readout to xxxx.x00 before switching to Coarse, on the fea that the undisplayed digits actually are used in determining the Rx/Tx frequency, but there’s nowhere that says one way or the other that I can find. Bob - W3DK
From: Bill Weaver [mailto:[hidden email]] Sent: Thursday, October 17, 2019 8:34 AM To: Bill Weaver; Bob Novas; Bob Novas via Elecraft Subject: Re: [Elecraft] Question on frequency when in fine/medium/coarse Sri, when selecting coarse to 7.0264 not 7.02644. Fat fingers 73, Bill WE5P On Oct 17, 2019 at 08:31, Bill Weaver <[hidden email]> wrote: Bob, I just tested it. It looks like the undisplayed digits are retained. My example 7.02647. Select coarse 7.02644 tune around and return to 7.0264 and select medium returns to 7.02647. 73, Bill WE5P > > On Oct 17, 2019 at 08:23, Bob Novas via Elecraft wrote: > > > When the K3s is in Coarse tuning mode, showing 100 Hz steps, are the 10 Hz and 1 Hz settings retained from wherever they were, or are they jammed to 0's? In other words, if the dial reads 7010.1, is the K3s running on the frequency 7010.100 or possibly 7010.1?? where the ?? are whatever happened to be dialed in before going to Coarse tuning? Thanks, Bob Novas - W3DK ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to weaverwf@usermailcom > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Question on frequency when in fine/medium/coarse
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The undisplayed digits are used, i.e. the freq does not shift to the displayed 100Hz. In my example the freq (while listening to a CW QSO) did not shift but stayed at 7.02647 Khz. 73, Bill WE5P > > On Oct 17, 2019 at 08:59, Bob Novas <[hidden email]> wrote: > > > > > But, the question is - are the undisplayed digits retained but not used, or are they actually utilized in determining the frequency? I’ve been setting my readout to xxxx.x00 before switching to Coarse, on the fea that the undisplayed digits actually are used in determining the Rx/Tx frequency, but there’s nowhere that says one way or the other that I can find. Bob - W3DK > > > > > > > > From: Bill Weaver [mailto:[hidden email]] > Sent: Thursday, October 17, 2019 8:34 AM > To: Bill Weaver; Bob Novas; Bob Novas via Elecraft > Subject: Re: [Elecraft] Question on frequency when in fine/medium/coarse > > > > > > > > > > Sri, when selecting coarse to 7.0264 not 7.02644. Fat fingers > > > > > > 73, > > > > > > Bill WE5P > > > > > > > > > > > > > > > > On Oct 17, 2019 at 08:31, Bill Weaver <[hidden email]> wrote: > > > > > > > > > > > > > > > > Bob, > > > > > > > > > > > > > > > > I just tested it. It looks like the undisplayed digits are retained. My example 7.02647. Select coarse 7.02644 tune around and return to 7.0264 and select medium returns to 7.02647. > > > > > > > > > > > > > > > > 73, > > > > > > > > > > > > > > > > Bill WE5P > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Oct 17, 2019 at 08:23, Bob Novas via Elecraft wrote: > > > > > > > > > > > > > > > When the K3s is in Coarse tuning mode, showing 100 Hz steps, are the 10 Hz and 1 Hz settings retained from wherever they were, or are they jammed to 0's? In other words, if the dial reads 7010.1, is the K3s running on the frequency 7010.100 or possibly 7010.1?? where the ?? are whatever happened to be dialed in before going to Coarse tuning? Thanks, Bob Novas - W3DK ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to weaverwf@usermailcom > > > > > > > > > > > > > ______________________________________________________________ > > > > Elecraft mailing list > > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > > > Help: http://mailman.qth.net/mmfaq.htm > > > > Post: mailto:[hidden email] > > > > > > > > This list hosted by: http://www.qsl.net > > > > Please help support this email list: http://www.qsl.net/donate.html > > > > Message delivered to [hidden email] > > > > > > > > > > > > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Question on frequency when in fine/medium/coarse
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Bill - hunh. I didn’t think of testing it that way, but clearly that works and tells the tale. Kind of off-putting, knowing that you’re really up to 99 Hz away from where you think you are when you select Coarse. Maybe a good use for a macro.
73, Bob W3Dk From: Bill Weaver [mailto:[hidden email]] Sent: Thursday, October 17, 2019 9:31 AM To: Bob Novas; Bob Novas via Elecraft Subject: Re: [Elecraft] Question on frequency when in fine/medium/coarse The undisplayed digits are used, i.e. the freq does not shift to the displayed 100Hz. In my example the freq (while listening to a CW QSO) did not shift but stayed at 7.02647 Khz. 73, Bill WE5P On Oct 17, 2019 at 08:59, Bob Novas <[hidden email]> wrote: But, the question is - are the undisplayed digits retained but not used, or are they actually utilized in determining the frequency? I’ve been setting my readout to xxxx.x00 before switching to Coarse, on the fea that the undisplayed digits actually are used in determining the Rx/Tx frequency, but there’s nowhere that says one way or the other that I can find. Bob - W3DK From: Bill Weaver [mailto:[hidden email]] Sent: Thursday, October 17, 2019 8:34 AM To: Bill Weaver; Bob Novas; Bob Novas via Elecraft Subject: Re: [Elecraft] Question on frequency when in fine/medium/coarse Sri, when selecting coarse to 7.0264 not 7.02644. Fat fingers 73, Bill WE5P On Oct 17, 2019 at 08:31, Bill Weaver <[hidden email]> wrote: Bob, I just tested it It looks like the undisplayed digits are retained. My example 7.02647. Select coarse 7.02644 tune around and return to 7.0264 and select medium returns to 7.02647. 73, Bill WE5P > > On Oct 17, 2019 at 08:23, Bob Novas via Elecraft wrote: > > > When the K3s is in Coarse tuning mode, showing 100 Hz steps, are the 10 Hz and 1 Hz settings retained from wherever they were, or are they jammed to 0's? In other words, if the dial reads 7010.1, is the K3s running on the frequency 7010.100 or possibly 7010.1?? where the ?? are whatever happened to be dialed in before going to Coarse tuning? Thanks, Bob Novas - W3DK ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to weaverwf@usermailcom > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Question on frequency when in fine/medium/coarse
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Bob,
An alternative solution is to set VFO CRS to what you want (it is per mode). Also set VFO OFS to ON. Now you can use the RIT/XIT knob for coarse excursions across the band while leaving VFO A set to FINE. Of course, if you turn RIT/XIT on, you will lose that capability until you turn it off. 73, Don W3FPR On 10/17/2019 9:48 AM, Bob Novas via Elecraft wrote: > Bill - hunh. I didn’t think of testing it that way, but clearly that works and tells the tale. Kind of off-putting, knowing that you’re really up to 99 Hz away from where you think you are when you select Coarse. Maybe a good use for a macro. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
Re: Question on frequency when in fine/medium/coarse
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In reply to this post by weaverwf@usermail.com
I checked this another way by using the radio debug window in Logger32.
It polls the radio and displays the set frequency. This can also be checked using the K3 Utility by entering FA; into the command test window. Changing the resolution of the K3 step size only changed the reported frequency by the step size. The finer resolution, lease significant, digits remained intact. This negates to a degree the utility of the EXT REF functionality option set for the base K3 and 2m transverter lock. There would perhaps be some advantage in resetting the discarded display digits in the synth frequency setting word to zero to match. An interesting potential gotcha for folks checking into nets using a coarse step size or transverting to VHF/UHF channelised modes e.g. FM repeaters without realising there could be unseen and potentially large residual offsets. Is this another possible cause of the the occasional reported frequency errors, usually attributed to REF CAL errors? It all really comes down to cockpit drill once the situation is known. I usually run the display at 10Hz resolution, the last digit in fine 1Hz resolution set to 0 e.g. 21019.46(0) however, this will be messed up the first time I use auto SPOT with CWT. I wouldn't bet the farm on a modification to the K3 firmware, even if desirable, at this stage of its life cycle. Regards, Mike VP8NO On 17/10/2019 10:30, Bill Weaver wrote: > > > The undisplayed digits are used, i.e. the freq does not shift to the displayed 100Hz. In my example the freq (while listening to a CW QSO) did not shift but stayed at 7.02647 Khz. > > > > 73, > > Bill WE5P ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [hidden email] |
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