Re: [Elecraft] K3 shift-width/lo-hi
The K3 Utility help explains what gets EE INIT-ed. Glad it is working. Keith WE6R, Elecraft K3 Tech On Mon, Mar 30, 2020 at 8:47 PM Martin Sole wrote: > Keith, > > Many thanks for the heads up. I did the gain calibration instinctively as > I did not know if it would be modified by the EE-Init or not, the D10 > manual page 66 on parameter initialization does not state. > > All working well now and the radio is back to proper operation. > > Martin, HS0ZED > > > On 31/03/2020 04:50, Keith Trinity WE6R wrote: > > Don't forget to do the TX gain cal, that gets wiped during EE INIT. > Then save the config. > **BUT; You might try loading your saved config, then read my notes; > From my notes; > > *Cannot toggle LEDs SHIFT LO CUT HI WIDTH TAPPING LOCKED in CW or DATA > mode(s) + N/A* > > *Fix;* Turn off “CW QRQ” in config menu, or set “PB CTRL” to .05 instead > of .01 > > Notes; Any of the following, in any combination, will lock out the toggle > to HI CUT / LO CUT: > > CW mode and CW QRQ ON ("+" sign visible on LCD display, not flashing) > > CW mode and CONFIG:PB CTRL Shift=.01 > > DATA mode (FSK/AFSK) > Keith WE6R > > > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift-width/lo-hi
Not observed on my K3S, sn 10163 radio. And nothing shows on my P3. 73 Bob, K4TAX On 3/30/2020 5:39 PM, Buck wrote: How about this one? K3S CW mode. Tone at 14.053.953 with shift at 650 Hz, lox cut at .10 High cut at 1.20. Same tone at 7.026.765 and 21.074.113 but weaker. The tone is strong enough to show a spike on the P3. Tone goes away if I move the shift off 650 Hz or change the low cut or high cut. But the spike still appears on the P3 screen? Something in the P3? k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 3/30/2020 5:50 PM, Keith Trinity WE6R wrote: Don't forget to do the TX gain cal, that gets wiped during EE INIT. Then save the config. **BUT; You might try loading your saved config, then read my notes; From my notes; *_Cannot toggle LEDs SHIFT LO CUT HI WIDTH TAPPING LOCKED in CW or DATA mode(s) + N/A_* _Fix;_Turn off “CW QRQ” in config menu, or set “PB CTRL” to .05 instead of .01 Notes; Any of the following, in any combination, will lock out the toggle to HI CUT / LO CUT: CW mode and CW QRQ ON ("+" sign visible on LCD display, not flashing) CW mode and CONFIG:PB CTRL Shift=.01 DATA mode (FSK/AFSK) Keith WE6R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift-width/lo-hi
Keith, Many thanks for the heads up. I did the gain calibration instinctively as I did not know if it would be modified by the EE-Init or not, the D10 manual page 66 on parameter initialization does not state. All working well now and the radio is back to proper operation. Martin, HS0ZED On 31/03/2020 04:50, Keith Trinity WE6R wrote: Don't forget to do the TX gain cal, that gets wiped during EE INIT. Then save the config. **BUT; You might try loading your saved config, then read my notes; From my notes; *_Cannot toggle LEDs SHIFT LO CUT HI WIDTH TAPPING LOCKED in CW or DATA mode(s) + N/A_* _Fix;_Turn off “CW QRQ” in config menu, or set “PB CTRL” to .05 instead of .01 Notes; Any of the following, in any combination, will lock out the toggle to HI CUT / LO CUT: CW mode and CW QRQ ON ("+" sign visible on LCD display, not flashing) CW mode and CONFIG:PB CTRL Shift=.01 DATA mode (FSK/AFSK) Keith WE6R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift-width/lo-hi
How about this one? K3S CW mode. Tone at 14.053.953 with shift at 650 Hz, lox cut at .10 High cut at 1.20. Same tone at 7.026.765 and 21.074.113 but weaker. The tone is strong enough to show a spike on the P3. Tone goes away if I move the shift off 650 Hz or change the low cut or high cut. But the spike still appears on the P3 screen? Something in the P3? k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 3/30/2020 5:50 PM, Keith Trinity WE6R wrote: Don't forget to do the TX gain cal, that gets wiped during EE INIT. Then save the config. **BUT; You might try loading your saved config, then read my notes; From my notes; *_Cannot toggle LEDs SHIFT LO CUT HI WIDTH TAPPING LOCKED in CW or DATA mode(s) + N/A_* _Fix;_Turn off “CW QRQ” in config menu, or set “PB CTRL” to .05 instead of .01 Notes; Any of the following, in any combination, will lock out the toggle to HI CUT / LO CUT: CW mode and CW QRQ ON ("+" sign visible on LCD display, not flashing) CW mode and CONFIG:PB CTRL Shift=.01 DATA mode (FSK/AFSK) Keith WE6R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to radiok...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift-width/lo-hi
Don't forget to do the TX gain cal, that gets wiped during EE INIT. Then save the config. **BUT; You might try loading your saved config, then read my notes; From my notes; *_Cannot toggle LEDs SHIFT LO CUT HI WIDTH TAPPING LOCKED in CW or DATA mode(s) + N/A_* _Fix;_Turn off “CW QRQ” in config menu, or set “PB CTRL” to .05 instead of .01 Notes; Any of the following, in any combination, will lock out the toggle to HI CUT / LO CUT: CW mode and CW QRQ ON ("+" sign visible on LCD display, not flashing) CW mode and CONFIG:PB CTRL Shift=.01 DATA mode (FSK/AFSK) Keith WE6R __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift-width/lo-hi
64 F and overcast here in Williamsburg, Virginia right now. Sent from my iPhone ...nr4c. bill > On Mar 28, 2020, at 10:24 AM, Martin Sole wrote: > > Bill, > > Many thanks, EE-Init seems to have done the trick, if for no other reason > than it set default settings and restored the normal operation. Loading my > saved configuration, saved after the problem occurred, created the same > problem, no HI-Lo in SSB only on Data and AM. > > I've now doe a full manual setup of all my filters and modules, I had that > info to hand, and saved the current full working configuration. > > So normal service is restored and the Hi-Lo function is once again working on > all modes. Now I just need to brave the 38 degrees C to get outside and climb > the tower to work on the antenna. > > Many thanks Bill > > 73 > Martin, HS0ZED > > > >> On 28/03/2020 15:53, Nr4c wrote: >> Look in manual for “EE_Init”. >> >> Is it set to Hi-Lo for SSB and Shift-Width for CW? If so, why change it? >> >> Sent from my iPhone >> ...nr4c. bill >> >> >>> On Mar 28, 2020, at 3:51 AM, Martin Sole wrote: >>> >>> HI, >>> >>> So today having fun in WPX but playing with the K3 controls I am fairly >>> sure that I should be able to change from shift-width to lo-hi by just a >>> tap of either knob, but it does nothing. Well it does work as expected in >>> Data and AM mode but not in CW or SSB. All other functions are normal and >>> working as expected including the NORM and I/II switch functions. its just >>> shift-width/hi-lo in CW and SSB modes only. >>> >>> I've never needed to do this before but am scratching my head how to do a >>> hard reset to default baseline settings, cannot find anything in the manual. >>> >>> So what's going on? Have I set something that could disable this, and how >>> can I achieve a clean test state to see what should or shouldn;t work. >>> >>> 73 >>> Martin, HS0ZED >>> >>> >>> __ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft@mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to n...@widomaker.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift-width/lo-hi
Bill, Many thanks, EE-Init seems to have done the trick, if for no other reason than it set default settings and restored the normal operation. Loading my saved configuration, saved after the problem occurred, created the same problem, no HI-Lo in SSB only on Data and AM. I've now doe a full manual setup of all my filters and modules, I had that info to hand, and saved the current full working configuration. So normal service is restored and the Hi-Lo function is once again working on all modes. Now I just need to brave the 38 degrees C to get outside and climb the tower to work on the antenna. Many thanks Bill 73 Martin, HS0ZED On 28/03/2020 15:53, Nr4c wrote: Look in manual for “EE_Init”. Is it set to Hi-Lo for SSB and Shift-Width for CW? If so, why change it? Sent from my iPhone ...nr4c. bill On Mar 28, 2020, at 3:51 AM, Martin Sole wrote: HI, So today having fun in WPX but playing with the K3 controls I am fairly sure that I should be able to change from shift-width to lo-hi by just a tap of either knob, but it does nothing. Well it does work as expected in Data and AM mode but not in CW or SSB. All other functions are normal and working as expected including the NORM and I/II switch functions. its just shift-width/hi-lo in CW and SSB modes only. I've never needed to do this before but am scratching my head how to do a hard reset to default baseline settings, cannot find anything in the manual. So what's going on? Have I set something that could disable this, and how can I achieve a clean test state to see what should or shouldn;t work. 73 Martin, HS0ZED __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@widomaker.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift-width/lo-hi
Look in manual for “EE_Init”. Is it set to Hi-Lo for SSB and Shift-Width for CW? If so, why change it? Sent from my iPhone ...nr4c. bill > On Mar 28, 2020, at 3:51 AM, Martin Sole wrote: > > HI, > > So today having fun in WPX but playing with the K3 controls I am fairly sure > that I should be able to change from shift-width to lo-hi by just a tap of > either knob, but it does nothing. Well it does work as expected in Data and > AM mode but not in CW or SSB. All other functions are normal and working as > expected including the NORM and I/II switch functions. its just > shift-width/hi-lo in CW and SSB modes only. > > I've never needed to do this before but am scratching my head how to do a > hard reset to default baseline settings, cannot find anything in the manual. > > So what's going on? Have I set something that could disable this, and how can > I achieve a clean test state to see what should or shouldn;t work. > > 73 > Martin, HS0ZED > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n...@widomaker.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Panadapter shift when filter switched in
Do you have any 5-pole roofing filters? In particular, is your wide filter a 5-pole 2.7 kHz filter or an 8-pole 2.8 kHz filter? The 5-pole filters have an offset, which is written on the filter and which is entered into the firmware with the CONFIG:FLx FRQ menu entry (or by using the K3 Utility). When a filter with an offset is selected, the IF changes by the amount of the offset. For example, if you have a filter with an offset of 1.0 kHz, then when that filter is selected, the centre of the IF bandpass is actually moved by 1 kHz relative to where it is when using a filter with no offset. If your panadapter takes its input from the IF Out port, input signals will move when you switch the receiver between filters whose offsets are different from one another. There is also a per-mode offset between SSB modes and CW, AM or FM. This is not actually a change in IF frequency, but rather a change in the way the radio's dial frequency is related to the receiver's bandpass. In CW, AM and FM, the receiver's bandpass is centred on the dial frequency. In FSK D or AFSK A, the receiver's bandpass is centred between the mark and space tones, i.e. 85 Hz away from the dial frequency. In SSB or DATA A, the receiver's bandpass is centred above (USB and DATA A) or below (LSB) the dial frequency by approximately half the audio bandwidth (more accurately, by the DSP filter Fc setting). If the panadapter uses the dial frequency to label frequencies in the display, simply changing modes will result in a shift in the displayed signal relative to the frequency markers. There are a couple of other things that affect the relationship between the IF Out signal and the frequency displayed on a panadapter. One is the filter Shift control (or Hi-Cut and Lo-Cut controls) - when the filter Fc is moved, so is the IF relative to the signal frequency. Another was mentioned by Wayne in a recent post on another thread: in CW, with some combinations of sidetone pitch (low) and DSP filter bandwidth (high), the firmware moves the IF centre frequency to ensure that the low edge of the audio bandpass stays away from zero. Both of these effects are usually quite a bit smaller than the mode-to-mode or crystal filter offset differences, but they can be seen easily enough when you zoom in the panadapter display. There is a radio control command specific to the K3/K3S that software and the P3 can use in order to adjust the frequency display markings to compensate for these offsets, but generic software like HDSDR doesn't use that command. 73, Rich VE3KI VE5UO wrote: Hi, I have a K3s with a 400hz filter. I am using an SDRPlay (HDSDR) connected to the IF out port. When the 400Hz filter activated using the xfil button or tuning the DSP), the signal on the panadapter shifts up approximately 1.5khz. It seems to happen on all bands/modes. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Panadapter shift when filter switched in
HiMany sdr packages do not present an accurate output based on mode and filters when fed from the if out. Hdsdr is one of them.73 tomva2fsq.com Sent from my Samsung Galaxy smartphone. Original message From: Dave Scarfe Date: 2018-08-05 11:15 PM (GMT-05:00) To: Elecraft@mailman.qth.net Subject: [Elecraft] Panadapter shift when filter switched in Hi, I have a K3s with a 400hz filter. I am using an SDRPlay (HDSDR) connected to the IF out port. When the 400Hz filter activated using the xfil button or tuning the DSP), the signal on the panadapter shifts up approximately 1.5khz. It seems to happen on all bands/modes. Any help very much appreciated! 73, Dave VE5UO __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tom...@videotron.ca __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
SOP on MS and EME over 30 years ago. On 7/5/2017 5:54 PM, Jim Brown wrote: ... There's another powerful way to prevent overload of your RX by your neighbor -- out here in W6, neighbors try to TX on the same cycle as our neighbors. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
On 7/5/2017 12:23 AM, Richard Lamont wrote: Thank you for your rigorous, quantified mathematical proof. Good engineering is not about math proofs, it's about big picture analysis of entire systems, understanding the limitations of each element, and concentrating on those elements that optimize the entire system. Clearly the JT65 transmitted harmonics I've seen, as received on my K3S, which blotted out the weak JT9 station I was trying to work at around -27, must have been a figment of my imagination. I'm not suggesting that wasn't real, but simply that harmonic distortion at AF is not the only cause of the problem. And questioning that shifting the TX signal to a frequency where the harmonic is out of the audio passband is the only solution. Using a better audio interface and setting levels correctly can easily get individual AF distortion products 60 dB below the the level of sine wave modulation. In an earlier post, I noted that interfaces sold to semi-pro audio users generally offer THD in the range of 0.5 - 0.1% and that number is the root-sum-square combination of the individual components. In that earlier post, I included a link that suggested specific make/models suitable for this use, all below $100 US, and four easy ways for users to set levels, depending on the available tools (including ears). You also seem to have missed my objection that WSJT-X forces the radio into split mode, when I want to use the second RX (controlled by the 2nd VFO) to SIMULTANEOUSLY monitor CW while I'm in RX mode with WSJT-X, AND to quickly do and A/B exchange of VFOs to work a station I hear on CW, then return to WSJT-X. I did that almost continuously during the big opening we experienced here last Friday, and one of those times got me a new grid (in a new state) 2,500 miles away. There's another powerful way to prevent overload of your RX by your neighbor -- out here in W6, neighbors try to TX on the same cycle as our neighbors. No math proofs required. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
On 05/07/17 01:33, Jim Brown wrote: > Richard -- I'm a Fellow of the Audio Engineering Society, BSEE, retired, > worked in both audio and broadcasting. I'm VERY aware of distortion > products and the mechanisms that produce them. I also TAUGHT this stuff. > Your concerns are overblown. Thank you for your rigorous, quantified mathematical proof. Clearly the JT65 transmitted harmonics I've seen, as received on my K3S, which blotted out the weak JT9 station I was trying to work at around -27, must have been a figment of my imagination. 73, Richard G4DYA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
I fully agree with Jim, K9YC on the point of distortion. In fact there are two signal paths in which distortion will affect ones results. Certainly audio distortion on the TX side will affect the quality of ones transmitted signal and distortion on the receive will affect ones decode quality. In my Windows 10 environment I find the Speaker level {USB Audio CODEC} best at about 50% or - 10 dB. Also in this pane, be sure to disable all enhancements. This allows the PWR fader for WSJT-X to operate about 50% or mid range of its travel. The Line gain on the K3S runs about 25 for 4 bars solid on the ALC and the 5th bar flickering in Data A mode.Adjust actual RF power output via the PWR control on the radio. On the receive end of WSJT-X, I find the Recording device level to be optimized for the USB CODEC at 0 dB with the K3S line out level at the normal / default of 010.Excessive USB CODAC gain at this point can over drive the audio stage causing distortion and one will sacrifice decode quality. The WSJT-X digital gain runs about the 3rd to 4th bar from the bottom and the level indicator nominally at about 25 dB to 35 dB depending on band noise and signals. Should you find any of your controls at an extreme position, I would be concerned that something is not correct up or down stream in the audo paths. 73 Bob, K4TAX On 7/4/2017 7:33 PM, Jim Brown wrote: On 7/4/2017 3:43 PM, Richard Lamont wrote: That's receive levels. I was talking about Tx distortion. The distortion I measured was for TX mode -- sound interface to radio. Richard -- I'm a Fellow of the Audio Engineering Society, BSEE, retired, worked in both audio and broadcasting. I'm VERY aware of distortion products and the mechanisms that produce them. I also TAUGHT this stuff. Your concerns are overblown. FWIW, I am FAR more concerned with distortions produced in ham gear at RF. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
* On 2017 04 Jul 19:03 -0500, Christopher Hoover wrote: > I use fake it mode for split on my K3S, data mode, 4.00 on bandwidth, 1.5 > for shift.Works great. > > The rig control for WSJT-X split is not reliable for me.I build from > tip of tree from the repo with either hamlib-3.1 or hamlib git, so it is > certainly possible I am seeing a regression that is not in older, stable > releases. (I looked at the code that handles split mode to try to fix it > ... shivers.) I built WSJT-X 1.7 six months ago from the distribution tarball on this Devuan Jessie box and WSJT-X has been rock solid reliable in split mode and my K3 with DATA A mode. Just worked a few more stations this evening on 15 and 17m. 73, Nate, N0NB -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Ham radio, Linux, bikes, and more: http://www.n0nb.us __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
On 7/4/2017 3:43 PM, Richard Lamont wrote: That's receive levels. I was talking about Tx distortion. The distortion I measured was for TX mode -- sound interface to radio. Richard -- I'm a Fellow of the Audio Engineering Society, BSEE, retired, worked in both audio and broadcasting. I'm VERY aware of distortion products and the mechanisms that produce them. I also TAUGHT this stuff. Your concerns are overblown. FWIW, I am FAR more concerned with distortions produced in ham gear at RF. 73, Jim K9YC __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
I use fake it mode for split on my K3S, data mode, 4.00 on bandwidth, 1.5 for shift.Works great. The rig control for WSJT-X split is not reliable for me.I build from tip of tree from the repo with either hamlib-3.1 or hamlib git, so it is certainly possible I am seeing a regression that is not in older, stable releases. (I looked at the code that handles split mode to try to fix it ... shivers.) 73 de AI6KG On Tue, Jul 4, 2017 at 3:43 PM, Richard Lamontwrote: > On 04/07/17 22:56, Jim Brown wrote: > > Richard, > > > > Not nonsense at all. WSJT-X is VERY robust in the ability to reject > > this sort of QRM. The screen grab below is a great example. I continue > > to be amazed by the decoding in WSJT-X. About 10 days ago, W0OGH > > accidentally got out of sync with JA7QVI, calling on his TX cycle, and > > on the same frequency. As this screen grab clearly shows, W0OGH was 9 dB > > stronger on the 0053Z cycle and 12 dB stronger on the 0055Z cycle, yet > > both signals were decoded without error! > > > > During a wonderful 6M opening this past Friday evening west coast time, > > I had a LOT of JT65/JT9 passes with more than 20 clean decodes on each > > pass. I regularly see decodes in the -20 to -28 range, even with very > > strong signals capturing the AGC. It's only necessary to keep peak > > signal levels to the A/D below digital clip. > > That's receive levels. I was talking about Tx distortion. > > While it's certainly the case that WSJT-X's two-pass decoder can > *sometimes* decode weak signals underneath overlapping strong ones, this > isn't always the case and it can never be a magic cure all. That would > have Claude and Harry spinning in their graves. Any kind of spurious > crud will raise the noise floor, which is always a bad thing. > > Also, harmonics really clutter the waterfall. A JT65 signal on, say 700 > Hz, will appear between 700-878 Hz. The second and third harmonics will > appear between 1400-1756 and 2100-2634 Hz. Just one distorted JT65 > signal easily mess up over a kHz of bandwidth in total. With a busy band > this can turn the display into an incomprehensible mush. > > Also, audio harmonics of JT65 signals can spread into the part of the > band used by JT9, which does not have a two-pass decoder. > > The WSJT-X developers are a *very* clever team of 25 people, led by a > Nobel-prize winning professor of physics at Princeton, who have > considered all this stuff over many years with a forensic, mathematical > rigour of the kind that most of us can only guess at. If they say that > it's a good idea to keep TX audio above 1500 Hz, I think I'll trust > their word over yours. > > 73, > Richard G4DYA > > > 73, > Richard G4DYA > > > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c...@murgatroid.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
On 04/07/17 22:56, Jim Brown wrote: > Richard, > > Not nonsense at all. WSJT-X is VERY robust in the ability to reject > this sort of QRM. The screen grab below is a great example. I continue > to be amazed by the decoding in WSJT-X. About 10 days ago, W0OGH > accidentally got out of sync with JA7QVI, calling on his TX cycle, and > on the same frequency. As this screen grab clearly shows, W0OGH was 9 dB > stronger on the 0053Z cycle and 12 dB stronger on the 0055Z cycle, yet > both signals were decoded without error! > > During a wonderful 6M opening this past Friday evening west coast time, > I had a LOT of JT65/JT9 passes with more than 20 clean decodes on each > pass. I regularly see decodes in the -20 to -28 range, even with very > strong signals capturing the AGC. It's only necessary to keep peak > signal levels to the A/D below digital clip. That's receive levels. I was talking about Tx distortion. While it's certainly the case that WSJT-X's two-pass decoder can *sometimes* decode weak signals underneath overlapping strong ones, this isn't always the case and it can never be a magic cure all. That would have Claude and Harry spinning in their graves. Any kind of spurious crud will raise the noise floor, which is always a bad thing. Also, harmonics really clutter the waterfall. A JT65 signal on, say 700 Hz, will appear between 700-878 Hz. The second and third harmonics will appear between 1400-1756 and 2100-2634 Hz. Just one distorted JT65 signal easily mess up over a kHz of bandwidth in total. With a busy band this can turn the display into an incomprehensible mush. Also, audio harmonics of JT65 signals can spread into the part of the band used by JT9, which does not have a two-pass decoder. The WSJT-X developers are a *very* clever team of 25 people, led by a Nobel-prize winning professor of physics at Princeton, who have considered all this stuff over many years with a forensic, mathematical rigour of the kind that most of us can only guess at. If they say that it's a good idea to keep TX audio above 1500 Hz, I think I'll trust their word over yours. 73, Richard G4DYA 73, Richard G4DYA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
Richard, Not nonsense at all. WSJT-X is VERY robust in the ability to reject this sort of QRM. The screen grab below is a great example. I continue to be amazed by the decoding in WSJT-X. About 10 days ago, W0OGH accidentally got out of sync with JA7QVI, calling on his TX cycle, and on the same frequency. As this screen grab clearly shows, W0OGH was 9 dB stronger on the 0053Z cycle and 12 dB stronger on the 0055Z cycle, yet both signals were decoded without error! During a wonderful 6M opening this past Friday evening west coast time, I had a LOT of JT65/JT9 passes with more than 20 clean decodes on each pass. I regularly see decodes in the -20 to -28 range, even with very strong signals capturing the AGC. It's only necessary to keep peak signal levels to the A/D below digital clip. 73, Jim K9YC = = = = = = = = = = 0053 -23 0.3 2788 @ K1JT W7AH DM42 0053 -14 0.1 817 # JA7QVI W0OGH DM52 0053 -24 0.0 1274 # CQ DX JF3DRI PM74 0053 -14 0.2 1590 # N4GBK N6ML CM97 0053 -23 0.6 817 # CQ DX JA7QVI QM08 - 6m 0055 -7 0.1 817 # JA7QVI W0OGH DM52 0055 -22 -0.0 1274 # CQ DX JF3DRI PM74 0055 -16 0.2 1588 # N4GBK N6ML R-07 0055 -19 0.6 816 # N6WS JA7QVI R-06 On 7/4/2017 1:47 PM, Richard Lamont wrote: On 04/07/17 18:37, Jim Brown wrote: The split mode in WSJT-X is simply a crutch for those who don't know (or don't care) how to set audio levels so that distortion is not produced in the audio chain. Sorry, but that's nonsense. With a strong signal, just 1% distortion will produce audio harmonics that are only 40-ish dB down on the fundamental. That's plenty to cause QRM. With these modes it's possible to have work a station that's 60 dB down on another just a few Hz away. WSJT-X, being based on 16-bit digital audio, has an inherently high dynamic range. The split mode exists (a) to enable people to work over a wider range of frequencies than a single SSB channel, and (b) to ensure that the Tx audio frequency is always at least 1500 Hz, ensuring that *low-level* harmonics get filtered out. Even with a clean TX and audio levels set just so, it's well worth having that extra filtering in place. 73, Richard G4DYA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to j...@audiosystemsgroup.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
On 04/07/17 19:38, Bob McGraw K4TAX wrote: > One anomaly which I've just observed with my K3S. I did set the > software as suggested for SPLIT mode for WSJT-X / JT-65. The radio > followed as expected. I made a few contacts successfully with this > configuration. When I closed WSJT-X I noted it left the radio in SPLIT > mode. I can just see all of the confusion and frustration not to > mention unintentional QRM created by this occurrence. Another trap to > watch for. > > Probably in my case, even a better reason not to use SPLIT. In other > words, it isn't idiot proof and I've been accused as being as dumb as a > box of rocks. I use a macro to unset all the WSJT-X-specific settings on my rig when I switch to another mode. Among other things it unsplits and turns AGC back on. 73, Richard G4DYA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
Actually, my experience is different. If I transmit at the edges of the bandpass, my signal is attenuated due to the bandpass of the output stage. I hope I am saying this correctly. This is why I use split to ensure that the signal I transmit engages the full power of the KX3. Now, I have read many times in this forum that the setup of audio based digital modes only needs to set the audio so you get 4 bars of alc (5th flickering) and then set the output power to 5w (in my case that is what I use). You set these independently of one another. Fine. I have done that. But, I have observed that if I don't use split mode and I respond to a cq at the edges of the bandpass (e.g., 200-300hz or 2500-2700hz), my signal is noticeably weaker. Have I misconfigured something on the KX3? The USB sound card I am using is many times wider than a typical USB signal. regards, Brian VE3IBW On Tue, Jul 4, 2017 at 2:38 PM, Bob McGraw K4TAXwrote: > One anomaly which I've just observed with my K3S. I did set the software > as suggested for SPLIT mode for WSJT-X / JT-65. The radio followed as > expected. I made a few contacts successfully with this configuration. > When I closed WSJT-X I noted it left the radio in SPLIT mode. I can just > see all of the confusion and frustration not to mention unintentional QRM > created by this occurrence. Another trap to watch for. > > Probably in my case, even a better reason not to use SPLIT. In other > words, it isn't idiot proof and I've been accused as being as dumb as a box > of rocks. > > 73 > > Bob, K4TAX > > > On 7/4/2017 1:25 PM, Tom-KQ5S wrote: > >> No argument but some folks, particularly those new to WSJTX, read the >> WSJTX >> user manual and follow it. Also split mode is "encouraged" on the WSJT >> group. >> >> Split Operation: Significant advantages result from using Split mode >> (separate VFOs for Rx and Tx) if your radio supports it. If it does not, >> WSJT-X can emulate such behavior. Either method will result in a cleaner >> transmitted signal, by keeping the Tx audio always in the range 1500 to >> 2000 Hz so that audio harmonics cannot pass through the Tx sideband >> filter. >> Select Rig to use the radio’s Split mode, or Fake It to have WSJT-X adjust >> the VFO frequency as needed, when T/R switching occurs. Choose None if you >> do not wish to use split operation. >> >> >> >> >> 73, >> Tom - KQ5S >> >> O >> > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to brian.waterwo...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
On 04/07/17 18:37, Jim Brown wrote: > The split mode in WSJT-X is simply a crutch for those who don't know (or > don't care) how to set audio levels so that distortion is not produced > in the audio chain. Sorry, but that's nonsense. With a strong signal, just 1% distortion will produce audio harmonics that are only 40-ish dB down on the fundamental. That's plenty to cause QRM. With these modes it's possible to have work a station that's 60 dB down on another just a few Hz away. WSJT-X, being based on 16-bit digital audio, has an inherently high dynamic range. The split mode exists (a) to enable people to work over a wider range of frequencies than a single SSB channel, and (b) to ensure that the Tx audio frequency is always at least 1500 Hz, ensuring that *low-level* harmonics get filtered out. Even with a clean TX and audio levels set just so, it's well worth having that extra filtering in place. 73, Richard G4DYA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
Thanks Joe. Mike, W9MDB, sent me a procedure using WSJTX to determine the cutoff points. I arrived at exactly what you are saying. I am using 1500 and find that I can copy JT9 out to 3000 and if a stronger signal out to about 3300. 73, Tom - KQ5S On Tue, Jul 4, 2017 at 7:25 AM, Joe Subich, W4TVwrote: > > I am using a width of 4 khz and using the radio in split mode. >> > Width of 4 KHz is useless with a 2800 Hz SSB filter. You do not > need (and can't use) more than 3000 - 3300 Hz. > > The default shift of 1500 (for DATA A) will provide relatively > flat audio response from 300 Hz to 2800 Hz with Width at 3000 Hz. > If you move the shift to 1700 the "flat area" of the audio pass- > band will be about 300 to 3000 Hz. > > Remember, with a 2800 Hz filter the maximum bandwidth is 2800 Hz > between the -3 dB points. Setting a wider DSP filter is not going > to make the flat are any wider it will only allow you to see more > of the filter skirts. If you really need the full 4 KHz get an > AM (6 KHz) or FM (13 KHz) filter. > > 73, > >... Joe, W4TV > > > On 7/2/2017 3:50 PM, Tom-KQ5S wrote: > >> Hope this is not a dupe. I sent it over an hour ago and nothing showed >> up. >> >> I am trying to tweak my WSJTX setup. What is the recommended shift for >> the >> K3S while running WSJTX? I have the 2.8 khz SSB filter installed. I am >> using a width of 4 khz and using the radio in split mode. >> >> >> 73, >> Tom - KQ5S >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to li...@subich.com >> >> __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kq5s...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
I am using a width of 4 khz and using the radio in split mode. Width of 4 KHz is useless with a 2800 Hz SSB filter. You do not need (and can't use) more than 3000 - 3300 Hz. The default shift of 1500 (for DATA A) will provide relatively flat audio response from 300 Hz to 2800 Hz with Width at 3000 Hz. If you move the shift to 1700 the "flat area" of the audio pass- band will be about 300 to 3000 Hz. Remember, with a 2800 Hz filter the maximum bandwidth is 2800 Hz between the -3 dB points. Setting a wider DSP filter is not going to make the flat are any wider it will only allow you to see more of the filter skirts. If you really need the full 4 KHz get an AM (6 KHz) or FM (13 KHz) filter. 73, ... Joe, W4TV On 7/2/2017 3:50 PM, Tom-KQ5S wrote: Hope this is not a dupe. I sent it over an hour ago and nothing showed up. I am trying to tweak my WSJTX setup. What is the recommended shift for the K3S while running WSJTX? I have the 2.8 khz SSB filter installed. I am using a width of 4 khz and using the radio in split mode. 73, Tom - KQ5S __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
One anomaly which I've just observed with my K3S. I did set the software as suggested for SPLIT mode for WSJT-X / JT-65. The radio followed as expected. I made a few contacts successfully with this configuration. When I closed WSJT-X I noted it left the radio in SPLIT mode. I can just see all of the confusion and frustration not to mention unintentional QRM created by this occurrence. Another trap to watch for. Probably in my case, even a better reason not to use SPLIT. In other words, it isn't idiot proof and I've been accused as being as dumb as a box of rocks. 73 Bob, K4TAX On 7/4/2017 1:25 PM, Tom-KQ5S wrote: No argument but some folks, particularly those new to WSJTX, read the WSJTX user manual and follow it. Also split mode is "encouraged" on the WSJT group. Split Operation: Significant advantages result from using Split mode (separate VFOs for Rx and Tx) if your radio supports it. If it does not, WSJT-X can emulate such behavior. Either method will result in a cleaner transmitted signal, by keeping the Tx audio always in the range 1500 to 2000 Hz so that audio harmonics cannot pass through the Tx sideband filter. Select Rig to use the radio’s Split mode, or Fake It to have WSJT-X adjust the VFO frequency as needed, when T/R switching occurs. Choose None if you do not wish to use split operation. 73, Tom - KQ5S O __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
No argument but some folks, particularly those new to WSJTX, read the WSJTX user manual and follow it. Also split mode is "encouraged" on the WSJT group. Split Operation: Significant advantages result from using Split mode (separate VFOs for Rx and Tx) if your radio supports it. If it does not, WSJT-X can emulate such behavior. Either method will result in a cleaner transmitted signal, by keeping the Tx audio always in the range 1500 to 2000 Hz so that audio harmonics cannot pass through the Tx sideband filter. Select Rig to use the radio’s Split mode, or Fake It to have WSJT-X adjust the VFO frequency as needed, when T/R switching occurs. Choose None if you do not wish to use split operation. 73, Tom - KQ5S On Tue, Jul 4, 2017 at 12:37 PM, Jim Brownwrote: > I agree. I use WSJT-X mostly on 6M during the summer and 160M during the > winter. On 6M, I can't use the WSJT-X split mode, because it takes over my > second VFO, preventing me from working back and forth from WSJT-X on one > VFO (and RX) and CW on the low end of the band. > > The split mode in WSJT-X is simply a crutch for those who don't know (or > don't care) how to set audio levels so that distortion is not produced in > the audio chain. The link below includes simple procedures for getting > those settings right. It applies to all sorts of computer-to-rig audio > connections, not only those with a USB interface. > > http://k9yc.com/USB_Interfaces.pdf > > BTW -- a decent USB interface can GREATLY improve decoding of weak > signals. That link describes my testing that clearly shows that. > > 73, Jim K9YC > > On 7/4/2017 6:05 AM, Bob McGraw K4TAX wrote: > >> Why split? The K3S should be in Data A mode and should switch to Data >> when you allow WSJT-X to connect. >> > > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kq5s...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
I agree. I use WSJT-X mostly on 6M during the summer and 160M during the winter. On 6M, I can't use the WSJT-X split mode, because it takes over my second VFO, preventing me from working back and forth from WSJT-X on one VFO (and RX) and CW on the low end of the band. The split mode in WSJT-X is simply a crutch for those who don't know (or don't care) how to set audio levels so that distortion is not produced in the audio chain. The link below includes simple procedures for getting those settings right. It applies to all sorts of computer-to-rig audio connections, not only those with a USB interface. http://k9yc.com/USB_Interfaces.pdf BTW -- a decent USB interface can GREATLY improve decoding of weak signals. That link describes my testing that clearly shows that. 73, Jim K9YC On 7/4/2017 6:05 AM, Bob McGraw K4TAX wrote: Why split? The K3S should be in Data A mode and should switch to Data when you allow WSJT-X to connect. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
From the WSJTX users manual: Split Operation: Significant advantages result from using Split mode (separate VFOs for Rx and Tx) if your radio supports it. If it does not, WSJT-X can emulate such behavior. Either method will result in a cleaner transmitted signal, by keeping the Tx audio always in the range 1500 to 2000 Hz so that audio harmonics cannot pass through the Tx sideband filter. Select Rig to use the radio’s Split mode, or Fake It to have WSJT-X adjust the VFO frequency as needed, when T/R switching occurs. Choose None if you do not wish to use split operation. 73, Tom - KQ5S On Tue, Jul 4, 2017 at 3:40 AM, David Andersonwrote: > Tom, > > Not a dupe, sometimes it takes a while for post to show. So don't worry. > > What mode are you going to be using WSJT-C on that requires a split? > > I have used WSJT-C here on JT65 and MSK144. > > > 73 from David GM4JJJ > > > On 2 Jul 2017, at 20:50, Tom-KQ5S wrote: > > > > Hope this is not a dupe. I sent it over an hour ago and nothing showed > up. > > > > I am trying to tweak my WSJTX setup. What is the recommended shift for > the > > K3S while running WSJTX? I have the 2.8 khz SSB filter installed. I am > > using a width of 4 khz and using the radio in split mode. > > > > > > 73, > > Tom - KQ5S > > __ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft@mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to gm4...@yahoo.co.uk > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
Since I am being dragged, kicking and screaming, into these imaginary QSO modes and have yet to allow my computer to talk to anyone else's computer on the air, perhaps I shouldn't comment, but I will anyway :-) I am receiving BTW, using WSJT-X in JT65. Depending on the tone(s), if the K3 is in split "Settings-->Radio-->Split Operation-->Rig" the the software will command the TX QRG to an offset that puts the tones in the "sweet spot". It's all explained in the very helpful help file. Wes N7WS On 7/4/2017 6:05 AM, Bob McGraw K4TAX wrote: Why split? The K3S should be in Data A mode and should switch to Data when you allow WSJT-X to connect. Typical bandwidth for receive is 2.4 kHz to 2.7 kHz.If you switch to JT-9 via the software then the radio should move up band 2 kHz. This is all configured in the Settings F2 menu of WSJT-X. If you need screen shots, I can provide such. 73 Bob, K4TAX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift for WSJTX
I have a KX3 and run with the same configuration as you list. Works perfectly and keeps my transmissions in the sweetspot. This wide filter setting lets me see JT65 and JT9 all at once and the split shifts me to the right spot to handle either. I have used the split and the fake-it settings with the KX3 and both work great. With regards to the 4Khz wide filter, I can't do that with my other rigs (Yaseu FT-450D) rigs as they don't have this width. This effectively reduces the usability of WSJT-X because I have to switch modes to either watch JT65 or JT9 individually. Consequently, I do all my JT work on the KX3. regards, Brian VE3IBW On Sun, Jul 2, 2017 at 2:12 PM, Tom-KQ5Swrote: > I am trying to tweak my WSJTX setup. What is the recommended shift for the > K3S while running WSJTX? I have the 2.8 khz SSB filter installed. I am > using a width of 4 khz and using the radio in split mode. > > > 73, > Tom - KQ5S > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to brian.waterwo...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
Wow the message only took 24 hours to post. I am no expert but from what I have read it is best to select split operations in the WSJTX settings. By doing this you can work JT9 and JT65 at the same time since WSJTX will change the split frequency to insure you are within the passband. I keep my WJTX mode set to JT9/JT65 and can work both without having to change anything. Of course I could be off in left field and if so someone will correct me. 73, Tom - KQ5S 73, Tom - KQ5S On Tue, Jul 4, 2017 at 8:05 AM, Bob McGraw K4TAXwrote: > Why split? The K3S should be in Data A mode and should switch to Data > when you allow WSJT-X to connect. Typical bandwidth for receive is 2.4 > kHz to 2.7 kHz.If you switch to JT-9 via the software then the radio > should move up band 2 kHz. > > This is all configured in the Settings F2 menu of WSJT-X. If you need > screen shots, I can provide such. > > 73 > > Bob, K4TAX > > > On 7/2/2017 2:50 PM, Tom-KQ5S wrote: > >> Hope this is not a dupe. I sent it over an hour ago and nothing showed >> up. >> >> I am trying to tweak my WSJTX setup. What is the recommended shift for >> the >> K3S while running WSJTX? I have the 2.8 khz SSB filter installed. I am >> using a width of 4 khz and using the radio in split mode. >> >> >> 73, >> Tom - KQ5S >> __ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcg...@blomand.net >> >> > > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kq5s...@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3S Shift Setting for WSJTX
Why split? The K3S should be in Data A mode and should switch to Data when you allow WSJT-X to connect. Typical bandwidth for receive is 2.4 kHz to 2.7 kHz.If you switch to JT-9 via the software then the radio should move up band 2 kHz. This is all configured in the Settings F2 menu of WSJT-X. If you need screen shots, I can provide such. 73 Bob, K4TAX On 7/2/2017 2:50 PM, Tom-KQ5S wrote: Hope this is not a dupe. I sent it over an hour ago and nothing showed up. I am trying to tweak my WSJTX setup. What is the recommended shift for the K3S while running WSJTX? I have the 2.8 khz SSB filter installed. I am using a width of 4 khz and using the radio in split mode. 73, Tom - KQ5S __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rmcg...@blomand.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 'SHIFT' not functional
You are quite right, Vic. It amazes me that I didn't know that since I've used QRQ from day 1 and thought I used SHIFT as well. Currently, it's a direct CONFIG menu entry CW QRQ and select ON or OFF. 73- Nick, WA5BDU -Original Message- From: Vic Rosenthal Sent: Wednesday, June 22, 2016 12:54 PM To: Nick Kennedy Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 'SHIFT' not functional Check to see if QRQ mode is set. It locks out the shift function. If there is a little plus sign on the right side of the display in CW mode then that's it. To turn it off, go to the CONFIG menu, CW WEIGHT and tap one of the number keys. I don't recall which, but you can find it in the manual. Vic 4X6GP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 'SHIFT' not functional
Check to see if QRQ mode is set. It locks out the shift function. If there is a little plus sign on the right side of the display in CW mode then that's it. To turn it off, go to the CONFIG menu, CW WEIGHT and tap one of the number keys. I don't recall which, but you can find it in the manual. Vic 4X6GP > On 22 Jun 2016, at 17:39, Nick Kennedywrote: > > Hi All, > > My K3’s ‘SHIFT’ control no longer shifts. It stays at the CW pitch frequency > I’ve dialed up as indicated by “FC *0.44”, for example, when I turn the knob. > > I had been setting up the rig for Field Day (taking out macros, etc.) when > this occurred. > > This is happening in the CW mode. In fact, I just verified that SHIFT works > normally in SSB and AM modes. The WIDTH control works normally as well. > > Searching the manual, it seems that using XFIL can disable SHIFT. Maybe I > accidentally hit XFIL. But if I did, how do I go back to normal? When I > rotate the WIDTH control, my filters are sequenced in and out as expected. > > No CAT is currently connected. > > At least it’s not fatal, but it would be nice to get the function back before > Saturday. > > 73/TU, > > Nick, WA5BDU > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 'SHIFT' not functional
While you are on a band/mode/etc where the shift pot isn't working... push and hold "shift", which is the "NORM" function which will reset filtering to default... This may fix it. Just my SWAG. On 6/22/2016 9:39 AM, Nick Kennedy wrote: > Hi All, > > My K3’s ‘SHIFT’ control no longer shifts. It stays at the CW pitch frequency > I’ve dialed up as indicated by “FC *0.44”, for example, when I turn the knob. > > I had been setting up the rig for Field Day (taking out macros, etc.) when > this occurred. > > This is happening in the CW mode. In fact, I just verified that SHIFT works > normally in SSB and AM modes. The WIDTH control works normally as well. > > Searching the manual, it seems that using XFIL can disable SHIFT. Maybe I > accidentally hit XFIL. But if I did, how do I go back to normal? When I > rotate the WIDTH control, my filters are sequenced in and out as expected. > > No CAT is currently connected. > > At least it’s not fatal, but it would be nice to get the function back before > Saturday. > > 73/TU, > > Nick, WA5BDU > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to caut...@montac.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] SSB shift frequency
I am assuming that FC refers to the "FC" in the VFO B display and you are referencing filter center. There is no relationship between CW and SSB centers. Nor is there a relationship between which filter is selected for CW and for SSB. Bandwidth, filter and filter center are independently set and saved per mode. So you should not expect them to be the same unless you have individually in both modes set them to the same values. These do not vary in the same mode between bands. You may be wanting to send CW in SSB mode, if so see K3 manual p. 55, "CW in SSB modes". 73, Guy K2AV On Tuesday, February 2, 2016, Paul VanOverenwrote: > Somehow, I have evidently changed something on my K3. When I change from CW > to SSB, the FC is 1.75 instead of 1.50, so I have to move it to the left to > get it back to 1.50. How do I get it set to 1.50 and stay there on all > bands. I cant tell if it is band specific or not. > > NF8J > Paul > __ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2av@gmail.com > __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift and lo/hi cut no longer working
Yes, that was the issue. Thanks, Wayne and all! Still getting to know my new K3! 73, Chris - K1AY On Fri, Apr 3, 2015 at 8:27 PM, Wayne Burdick n...@elecraft.com wrote: Hi Chris, You probably turned on CW QRQ mode. See CONFIG:CW QRQ. 73, Wayne N6KR On Apr 3, 2015, at 3:34 PM, Chris Hallinan challi...@gmail.com wrote: Hi folks, Somehow I managed to get my K3 into some state where the shift function doesn't shift, and I'm unable to select the alternate functions of the shift and width knobs to hi/lo cut. Mode CW, VFO-A, nothing unusual. LEDs show Shift and Width functions enabled. When I rotate Shift, the vfo-b display simply shows FC *0.48 (my pitch, the center of the passband.) It does not shift. Width control works. I've power cycled, still no joy. No software connected, either. Pressing each button does nothing. (Should go to alternate mode, ie lo/hi cut. Long pressing shift does normalize. It's only the functions associated with the shift knob. What gives? What did I do wrong? Chris K1AY -- Life is like Linux - it never stands still. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@elecraft.com -- Life is like Linux - it never stands still. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] SHIFT/WIDTH in DATA A mode
I was able to narrow down the problem. It is related to SYNC DATA (CONFIG:SYNC DT) which forces the same crystal filter to be used for both RX and TX. As long as SYNC DATA is OFF everything works as expected. If SYNC DATA is ON: (1) Toggling between SHIFT/WIDTH and LO/HI CUT is inhibited (2) SHIFT control is inactive (3) LO CUT and HI CUT both act as WIDTH control Am not sure if these limitations are a logical consequence of SYNC DATA ON or an unwanted side-effect. 73, Markus HB9BRJ -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-SHIFT-WIDTH-in-DATA-A-mode-tp7601016p7601025.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] [K3] SHIFT/WIDTH in DATA A mode
SYNC DATA provides a very short turnaround time by disabling operations that would require switching the synthesizer frequency between receive and transmit. (This is analogous to CW QRQ mode.) If you have the new synth installed (KSYN3A), the delays will be much shorter even with SYNC DATA turned off. 73, Wayne N6KR On Apr 5, 2015, at 8:27 AM, hb9brj hb9...@gmail.com wrote: I was able to narrow down the problem. It is related to SYNC DATA (CONFIG:SYNC DT) which forces the same crystal filter to be used for both RX and TX. As long as SYNC DATA is OFF everything works as expected. If SYNC DATA is ON: (1) Toggling between SHIFT/WIDTH and LO/HI CUT is inhibited (2) SHIFT control is inactive (3) LO CUT and HI CUT both act as WIDTH control Am not sure if these limitations are a logical consequence of SYNC DATA ON or an unwanted side-effect. 73, Markus HB9BRJ -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-SHIFT-WIDTH-in-DATA-A-mode-tp7601016p7601025.html Sent from the Elecraft mailing list archive at Nabble.com. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 shift and lo/hi cut no longer working
Hi Chris, You probably turned on CW QRQ mode. See CONFIG:CW QRQ. 73, Wayne N6KR On Apr 3, 2015, at 3:34 PM, Chris Hallinan challi...@gmail.com wrote: Hi folks, Somehow I managed to get my K3 into some state where the shift function doesn't shift, and I'm unable to select the alternate functions of the shift and width knobs to hi/lo cut. Mode CW, VFO-A, nothing unusual. LEDs show Shift and Width functions enabled. When I rotate Shift, the vfo-b display simply shows FC *0.48 (my pitch, the center of the passband.) It does not shift. Width control works. I've power cycled, still no joy. No software connected, either. Pressing each button does nothing. (Should go to alternate mode, ie lo/hi cut. Long pressing shift does normalize. It's only the functions associated with the shift knob. What gives? What did I do wrong? Chris K1AY -- Life is like Linux - it never stands still. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n...@elecraft.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Shift and Width encoders sluggish
Bad decoders, Tin pins, audio/speaker issues, intermittant keypad responses, RIT encoder issue etc have rendered my early K3 pretty useless. Add a very expensive shipping cost to and from the factory prohibitive, mine has now been set aside and earmarked for scrap. Support at Elecraft is excellent and those folks work hard at helping customers but a non-responsive factory let them down badly if you need to discuss your concerns. Gary Vk1ZZ K3, KX3, KPA500-FT, KAT500-FT,P3. On 14/03/2015 3:57 AM, Roger D Johnson n...@roadrunner.com wrote: The 4 encoders to the left of the main tuning knob all have a notchy feel to them whereas the RIT encoder feels smooth. Is this normal? Are the newest encoders notchy or smooth? Is the displayed frequency supposed to change when the RIT knob is turned even when RIT is off? 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to vk1zzg...@gmail.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Shift and Width encoders sluggish
The 4 encoders to the left of the main tuning knob all have a notchy feel to them whereas the RIT encoder feels smooth. Is this normal? Are the newest encoders notchy or smooth? Is the displayed frequency supposed to change when the RIT knob is turned even when RIT is off? 73, Roger __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Shift and Width encoders sluggish
Gary Gregory vk1zzg...@gmail.com wrote: ...a very expensive shipping cost to and from the factory…. Gary, We've been shipping the K3 since 2008. Things do wear out, sometimes, with products that get nearly continuous use (like K3s). We strive to locate and ship the best-quality parts we can that are compatible with the existing PC boards. And we do improve module designs as time permits. That said, you seem to have an extreme case. If you don't want to incur the cost of having us make these simple repairs or mods, perhaps you can find someone locally in VK--a PC or appliance repair shop, maybe even another ham with the needed tools. We can put together a package deal on all of the parts you think are required to bring your K3 back up to full health. I'll see to it that you're given pricing commensurate with your long history as a K3 owner. 73, Wayne N6KR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Shift and Width encoders sluggish
I think there was a bad batch of decoders or decoders that didn't perform as claimed. I am not sure mine have ever worked right. Unless you have two radios to compare to one would never know and there was never anything sent out that said hey if your encoders are acting wonky you might have got some bad ones. Similar pin issue with the power boards. I am unclear why Elecraft using inferior parts all of sudden became my problem. These are defects and while my K3's are no longer under warranty, the amount of defects and how they are handled will factor in to decision making on future radio purchases. The decoder issue might have been a warranty issue if I knew to look for it. Mike W0MU On 3/13/2015 9:32 AM, bruce whitney via Elecraft wrote: Perhaps Eric will clear this up but maybe my experience can help with this issue. The last time I sent one of my K3's back for some work - I mentioned that those four encoders in that cluster had a noticeable and undesirable 'backlash' feel to them - could they do something about it?I was told by the Elecraft tech that they had supplied several generations of those controls - I think - one was arbitrarily changed by the supplier and another Elecraft changed suppliers, or part numbers - or whatever. The bottom line being that not all encoders are alike. I had them changed out for the latest generation which are just great. They were very inexpensive - and very little labor - provided you already had the front cover removed for other purposes. I recommend the new controls and when I send my other K3 back in a few days for the new synthesizer, and a few other upgrades - I am going to get the new controls on it as well.73, Bruce W8RA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w...@w0mu.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Shift and Width encoders sluggish
About 756 years ago (actually last month -- it just seems like a long time ago) I sold my K3 and am now waiting for a new one, however with that K3 (that I owned for 5 years), started having issues with Width and Shift encoders. I finally discovered if I turned off QSK and QRQ, those problems disappeared. So you might check the setting of QRQ and QSK to see if that solves the responsiveness of those encoders. 73, Tom - W4BQF -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of David Cole Sent: Wednesday, March 11, 2015 11:30 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Shift and Width encoders sluggish I am having the same issue with the PWR, Width, and Shift encoders as well... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Tue, 2015-03-10 at 22:23 -0600, W0MU Mike Fatchett wrote: They tend to be not very responsive. The power and speed encoders work much smoother. Could they be dirty or is this possibly a known issue? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to alderm...@windstream.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 Shift and Width encoders sluggish
I am having the same issue with the PWR, Width, and Shift encoders as well... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Tue, 2015-03-10 at 22:23 -0600, W0MU Mike Fatchett wrote: They tend to be not very responsive. The power and speed encoders work much smoother. Could they be dirty or is this possibly a known issue? __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 (shift widt )
Do you have CONFIG:CW QRQ = ON? QRQ mode disables certain features, including filter shifting. 73, Wayne N6KR On Feb 27, 2015, at 11:02 PM, Viggo Magnus Nilsen la9...@online.no wrote: Hello Elecraft user's Problem or not ?? I cant adjust the SHIFT WIDTH pssband tune in CW mode., it work ok in SSB., when trying adjustment the display info is : *FC 80, have reloaded the Firmware, the width in the ''filter'' work ok., any idea ? 73' Viggo LA9NEA __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] Setting shift for different filters?
Dave, Yes, the default is 1500 Hz. with a 2.8 kHz filter, that puts the low end at 200 Hz and the high end at 2900 Hz. AND that is why you should be using the Hi-Cut, Lo-Cut on SSB instead of Shift and Width. For good intelligibility, you need to have some content in the 300 Hz range, so set the Lo-Cut to 200, 250, or 300 depending on your desires and the QRM conditions. Then change only the Hi-Cut to reduce the filter width - the width will change, cutting the highs and the filter center frequency will be automatically changed leaving the low frequency end unchanged. You will find that you can use a filter as narrow as 1500 Hz and still maintain SSB intelligibility (for a male voice, a female voice may need a few more highs). Using Width and Shift to accomplish the same thing is possible, but requires a lot more knob fiddling. 73, Don W3FPR On 2/29/2012 6:38 PM, David F. Reed wrote: I note that as expected, the center frequency of the bandpass of any given filter on SSB seems to be 1.5 KHz, whether its the 6 KHz filter, the 2.7 KHz filter or the 2.1 KHz filter. This seems to work out to be passing from 150 Hz to 2.85 KHz, right? So the 2.1 KHz filter (without using the shift control) passes 450 Hz to 2.55 KHz, right? I note that if I shift the center of the filter down to 1.35 KHz, the voices are more intelligible... When I switch filters and get back to the 2.1 KHz filter, the shift is lost; is there a setting I can use to save that shift setting? Thanks 73 de W5SV, Dave __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Setting shift for different filters?
Don, thanks for the reply. 1. when I try using the Lo-Cut, it seems to be confined to 100 Hz increments, so, 150, 250, 350, but no 200, 300, or 100 available; is there a way to set that differently? 2. I can accomplish the same thing either way if I understand what is going on, but is there a way to preserve the setting? Thanks again. --Dave W5SV On 2/29/12 7:18 PM, Don Wilhelm wrote: Dave, Yes, the default is 1500 Hz. with a 2.8 kHz filter, that puts the low end at 200 Hz and the high end at 2900 Hz. AND that is why you should be using the Hi-Cut, Lo-Cut on SSB instead of Shift and Width. For good intelligibility, you need to have some content in the 300 Hz range, so set the Lo-Cut to 200, 250, or 300 depending on your desires and the QRM conditions. Then change only the Hi-Cut to reduce the filter width - the width will change, cutting the highs and the filter center frequency will be automatically changed leaving the low frequency end unchanged. You will find that you can use a filter as narrow as 1500 Hz and still maintain SSB intelligibility (for a male voice, a female voice may need a few more highs). Using Width and Shift to accomplish the same thing is possible, but requires a lot more knob fiddling. 73, Don W3FPR On 2/29/2012 6:38 PM, David F. Reed wrote: I note that as expected, the center frequency of the bandpass of any given filter on SSB seems to be 1.5 KHz, whether its the 6 KHz filter, the 2.7 KHz filter or the 2.1 KHz filter. This seems to work out to be passing from 150 Hz to 2.85 KHz, right? So the 2.1 KHz filter (without using the shift control) passes 450 Hz to 2.55 KHz, right? I note that if I shift the center of the filter down to 1.35 KHz, the voices are more intelligible... When I switch filters and get back to the 2.1 KHz filter, the shift is lost; is there a setting I can use to save that shift setting? Thanks 73 de W5SV, Dave __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Setting shift for different filters?
hold SHIFT knob til you see - NORM - if you turn the WIDTH knob to an odd number 2.5 2.7 2.9 3.1 etc tap SHIFT or WIDTH knob so the LOW and HI leds comes on if you turn the SHIFT or WIDTH knob you will see LO .05 .15 .25 etc now again hold SHIFT knob til you see - NORM - this time turn knob WIDTH to any even number 2.4 2.6 2.8 etc tap SHIFT or WIDTH knob so the LOW and HI leds comes on if you turn the SHIFT or WIDTH knob you will see LO .10 .20 .30 etc as for a way to keep a setting after you have found one you like I use the I setting for a - NORM - 2.7 FC *1.50 I Hold the WIDTH knob to get to filter setting II now this one I play with the LO and HI until I find a setting I like now I can use I for normal wide easy listening on a clear band and I change to II if I need a modifier 300 LO to 2.10 HI narrow setting ymmv GB 73 K5OAI Sam Morgan On 2/29/2012 8:16 PM, David F. Reed wrote: Don, thanks for the reply. 1. when I try using the Lo-Cut, it seems to be confined to 100 Hz increments, so, 150, 250, 350, but no 200, 300, or 100 available; is there a way to set that differently? 2. I can accomplish the same thing either way if I understand what is going on, but is there a way to preserve the setting? Thanks again. --Dave W5SV On 2/29/12 7:18 PM, Don Wilhelm wrote: Dave, Yes, the default is 1500 Hz. with a 2.8 kHz filter, that puts the low end at 200 Hz and the high end at 2900 Hz. AND that is why you should be using the Hi-Cut, Lo-Cut on SSB instead of Shift and Width. For good intelligibility, you need to have some content in the 300 Hz range, so set the Lo-Cut to 200, 250, or 300 depending on your desires and the QRM conditions. Then change only the Hi-Cut to reduce the filter width - the width will change, cutting the highs and the filter center frequency will be automatically changed leaving the low frequency end unchanged. You will find that you can use a filter as narrow as 1500 Hz and still maintain SSB intelligibility (for a male voice, a female voice may need a few more highs). Using Width and Shift to accomplish the same thing is possible, but requires a lot more knob fiddling. 73, Don W3FPR On 2/29/2012 6:38 PM, David F. Reed wrote: I note that as expected, the center frequency of the bandpass of any given filter on SSB seems to be 1.5 KHz, whether its the 6 KHz filter, the 2.7 KHz filter or the 2.1 KHz filter. This seems to work out to be passing from 150 Hz to 2.85 KHz, right? So the 2.1 KHz filter (without using the shift control) passes 450 Hz to 2.55 KHz, right? I note that if I shift the center of the filter down to 1.35 KHz, the voices are more intelligible... When I switch filters and get back to the 2.1 KHz filter, the shift is lost; is there a setting I can use to save that shift setting? Thanks 73 de W5SV, Dave __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Setting shift for different filters?
David, OK, I have perhaps ignored the subtle points - in some cases, you will have 50 Hz rounding and in other cases, you will have 100 Hz rounding - that makes little difference. 50 Hz to a SSB low frequency response does not make much difference. n 2/29/2012 9:16 PM, David F. Reed wrote: Don, thanks for the reply. 1. when I try using the Lo-Cut, it seems to be confined to 100 Hz increments, so, 150, 250, 350, but no 200, 300, or 100 available; is there a way to set that differently? 2. I can accomplish the same thing either way if I understand what is going on, but is there a way to preserve the setting? Thanks again. --Dave W5SV On 2/29/12 7:18 PM, Don Wilhelm wrote: Dave, Yes, the default is 1500 Hz. with a 2.8 kHz filter, that puts the low end at 200 Hz and the high end at 2900 Hz. AND that is why you should be using the Hi-Cut, Lo-Cut on SSB instead of Shift and Width. For good intelligibility, you need to have some content in the 300 Hz range, so set the Lo-Cut to 200, 250, or 300 depending on your desires and the QRM conditions. Then change only the Hi-Cut to reduce the filter width - the width will change, cutting the highs and the filter center frequency will be automatically changed leaving the low frequency end unchanged. You will find that you can use a filter as narrow as 1500 Hz and still maintain SSB intelligibility (for a male voice, a female voice may need a few more highs). Using Width and Shift to accomplish the same thing is possible, but requires a lot more knob fiddling. 73, Don W3FPR On 2/29/2012 6:38 PM, David F. Reed wrote: I note that as expected, the center frequency of the bandpass of any given filter on SSB seems to be 1.5 KHz, whether its the 6 KHz filter, the 2.7 KHz filter or the 2.1 KHz filter. This seems to work out to be passing from 150 Hz to 2.85 KHz, right? So the 2.1 KHz filter (without using the shift control) passes 450 Hz to 2.55 KHz, right? I note that if I shift the center of the filter down to 1.35 KHz, the voices are more intelligible... When I switch filters and get back to the 2.1 KHz filter, the shift is lost; is there a setting I can use to save that shift setting? Thanks 73 de W5SV, Dave __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Setting shift for different filters?
Dave, A 50 Hz difference will not make a significant difference in the received audio unless you have greater than average ears. You can preserve the setting using the Norm I and Norm2 settings, but for the most part, I just use the Lo-Cut and Hi-Cut knobs to dial in what is best for the current situation at hand. 73, Don W3FPR On 2/29/2012 9:16 PM, David F. Reed wrote: Don, thanks for the reply. 1. when I try using the Lo-Cut, it seems to be confined to 100 Hz increments, so, 150, 250, 350, but no 200, 300, or 100 available; is there a way to set that differently? 2. I can accomplish the same thing either way if I understand what is going on, but is there a way to preserve the setting? Thanks again. --Dave W5SV On 2/29/12 7:18 PM, Don Wilhelm wrote: Dave, Yes, the default is 1500 Hz. with a 2.8 kHz filter, that puts the low end at 200 Hz and the high end at 2900 Hz. AND that is why you should be using the Hi-Cut, Lo-Cut on SSB instead of Shift and Width. For good intelligibility, you need to have some content in the 300 Hz range, so set the Lo-Cut to 200, 250, or 300 depending on your desires and the QRM conditions. Then change only the Hi-Cut to reduce the filter width - the width will change, cutting the highs and the filter center frequency will be automatically changed leaving the low frequency end unchanged. You will find that you can use a filter as narrow as 1500 Hz and still maintain SSB intelligibility (for a male voice, a female voice may need a few more highs). Using Width and Shift to accomplish the same thing is possible, but requires a lot more knob fiddling. 73, Don W3FPR On 2/29/2012 6:38 PM, David F. Reed wrote: I note that as expected, the center frequency of the bandpass of any given filter on SSB seems to be 1.5 KHz, whether its the 6 KHz filter, the 2.7 KHz filter or the 2.1 KHz filter. This seems to work out to be passing from 150 Hz to 2.85 KHz, right? So the 2.1 KHz filter (without using the shift control) passes 450 Hz to 2.55 KHz, right? I note that if I shift the center of the filter down to 1.35 KHz, the voices are more intelligible... When I switch filters and get back to the 2.1 KHz filter, the shift is lost; is there a setting I can use to save that shift setting? Thanks 73 de W5SV, Dave __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Setting shift for different filters?
Thanks Sam, that solves that part of my question. 73 de Dave, W5SV On 2/29/12 8:48 PM, Sam Morgan wrote: hold SHIFT knob til you see- NORM - if you turn the WIDTH knob to an odd number 2.5 2.7 2.9 3.1 etc tap SHIFT or WIDTH knob so the LOW and HI leds comes on if you turn the SHIFT or WIDTH knob you will see LO .05 .15 .25 etc now again hold SHIFT knob til you see- NORM - this time turn knob WIDTH to any even number 2.4 2.6 2.8 etc tap SHIFT or WIDTH knob so the LOW and HI leds comes on if you turn the SHIFT or WIDTH knob you will see LO .10 .20 .30 etc as for a way to keep a setting after you have found one you like I use the I setting for a- NORM - 2.7 FC *1.50 I Hold the WIDTH knob to get to filter setting II now this one I play with the LO and HI until I find a setting I like now I can use I for normal wide easy listening on a clear band and I change to II if I need a modifier 300 LO to 2.10 HI narrow setting ymmv 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:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] Setting shift for different filters?
Don, thanks; my ears are worse than normal, not better, so not a problem, just ab observation. And I finally got it worked out how to use the Norm settings, so all is well now. It seems I am still learning my way around my K3, and will be for some time; it keeps amazing me at how versatile and how good a radio it is. 73 de Dave, W5SV On 2/29/12 9:09 PM, Don Wilhelm wrote: Dave, A 50 Hz difference will not make a significant difference in the received audio unless you have greater than average ears. You can preserve the setting using the Norm I and Norm2 settings, but for the most part, I just use the Lo-Cut and Hi-Cut knobs to dial in what is best for the current situation at hand. 73, Don W3FPR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Shift/Width encoder pulse noise?
Odd... a few days have passed and not a single response to my query. I did some searching and noticed people have mentioned ticks or ticking when rotating the width knob, but I'm not sure if what I've described can be considered the same thing. Anyway, does anyone care to comment or should I forget about it? Obviously my question doesn't seem to be as important as others. 73 de James K2QI On Sat, Dec 5, 2009 at 11:18 PM, James Sarte k2qi@gmail.com wrote: Greetings reflector fans, I noticed something odd tonight with my K3; something I've never noticed before. I decided to do some SWL'ing around 40m and test out the relatively new Sync-AM feature. All works well but whenever I turn the filter shift or width knobs now, I get a fairly loud encoder pulse noise. This is similar to the VFO encoder hash on 5 MHz that I used to get prior to the hardware/software mod implementation. This enoder pulse/hash sounds loudest when the received signal is strongest, or when using an antenna jack that has an antenna connected. I can't seem to replicate the problem on 20m. Also, when switching over to the sub receiver, rotating the width/shift knobs don't have an effect unless I enter the B-set menu. The noise seems to be present in all modes (AM, CW, Data, USB, and LSB). This is with the latest beta firmware; 3.63. I've just reverted back to 3.42 to see if there's a change, and there isn't (perhaps the hash isn't as loud, but it's still there). I recently replaced my FP due to my original FP's encoders going bad. I have a new FP that I replaced myself. The encoders used in the new FP have a stiffer resistance to turning and don't have the detent feel any more. I'm not sure if something could have happened when I replaced the panel, but I doubt it as everything else seems to work FB. Anyway, just thought I'd toss this out there. Anyone have any suggestions? Anyone notice anything similar? -- 73 de James K2QI -- 73 de James K2QI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Shift/Width encoder pulse noise?
Hi James, As far as the noise when you turn shift/width, yes, I hear it too. I assume it's the result of changing the DSP filter parameters. If done while it's processing a strong signal it seems there's bound to be some artifacts. I don't know if anything can be done to quiet them. I personally don't consider it a problem, but others might object to it. As for the shift/width not altering the sub-RX settings unless you're in B-set, I think that's normal unless you're in diversity mode. As for the different feel of the encoders, I can't comment. Haven't had to replace mine. 73 -- Joe KB8AP On Dec 7, 2009, at 4:54 PM, James Sarte wrote: On Sat, Dec 5, 2009 at 11:18 PM, James Sarte k2qi@gmail.com wrote: whenever I turn the filter shift or width knobs now, I get a fairly loud encoder pulse noise. [snip] Also, when switching over to the sub receiver, rotating the width/ shift knobs don't have an effect unless I enter the B-set menu. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Shift/Width encoder pulse noise?
Hi Joe, Thanks for the reply. I don't think it's much of an issue either. Only reason I asked is I recently replaced front panels. I didn't know if I screwed something up during the transplant. I do not recall hearing the same ticking/pulse noise with the previous hardware. Good to know I'm in the clear. 73 de James K2QI -Original Message- From: Joe Planisky [mailto:jp...@jeffnet.org] Sent: Monday, December 07, 2009 8:26 PM To: James Sarte Cc: Elecraft Subject: Re: [Elecraft] K3: Shift/Width encoder pulse noise? Hi James, As far as the noise when you turn shift/width, yes, I hear it too. I assume it's the result of changing the DSP filter parameters. If done while it's processing a strong signal it seems there's bound to be some artifacts. I don't know if anything can be done to quiet them. I personally don't consider it a problem, but others might object to it. As for the shift/width not altering the sub-RX settings unless you're in B-set, I think that's normal unless you're in diversity mode. As for the different feel of the encoders, I can't comment. Haven't had to replace mine. 73 -- Joe KB8AP __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 Shift
Hi Ken. You can save two unique filter setups using the NORM knob. 1. First, hold NORM to clear any shift to give you a good starting point. 2. Now set desired WIDTH and SHIFT the FC to where you want it. 3. Now do a LONG HOLD of the NORM knob till you see SAVE. Rotate the knob while you have it pressed to the left to save your custome filter to setting 1. 4. Do the same process and rotate to the knob to the RIGHT to save setting 2. I do this for SSTV and PSK. Its a quick and easy way to recall a custome filter for digital modes. Also, If you use DXLabs (and I believe others can do this as well but its very easy in DXL) you can enter CAT commands by mode. So when I use WinWarbler and select PSK it automatically sets the shift and the BW, and power output to what I want. No need to go to the radio to make any changes. It just happens. Hope this helps! - 73, Greg - AB7R Whidbey Island WA NA-065 On Thu Aug 27 10:51 , Ken Roberson sent: Hello All, I built S/N 1354 from a kit , with FW 3.25 , I have installed most of the mods. I operate digi modes some of the time and I need to set the shift to 1.25 instead of 1.50 to be centered in the IF strip. It's been this way ever since I built it. I'm not sure what I have setup wrong . All filters are 8 pole . With the new shift steps set to 10 hz the shift control knob needs to be set all the way to the left ( 1.28 ) to be centered. Also on 160 M when I rotate the RIT knob fast to change the frequency I have some kind of image, Not sure what this is ?? Thanks for your help 73 Ken K5DNL __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: Elecraft@mailman.qth.net','','','')Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Shift is at *61, not where it was before
I have noticed what I think is small but inexplicable change in my K3 shift. Up until a few weeks ago (when I had some other odd issue with the sidetone going to zero hz, thus the crystal filter not seeming to work...) my shift centre frequency was 60. That is, that is where I think the normal is and was demarcated by an asterisk, hence it read *60, and then 55, 50, 45 etc going down, and then when going back up the 60 had the *60 marker. Now the marker is *61. Things still go down and up in 5 hz increments when shifting but the default/normal marked is *61. Why is this? What happened? I don't really discern much diffence (being doing contacts in cw with no problem) .. but the mystery of how this changed and how to change it back (simply to be back to 5 hz steps...?) is pestering me. And yes, my tired eyes don't see much of anything on this in the manuals. But then again my wife has to find my jam for breakfast. tnx Brien Pepperdine VE3VAW Toronto __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: Shift is at *61, not where it was before
You probably inadvertently set your PITCH to 610. Try resetting it to 600 and see if that solves your problem. 73, Ken K3IU Brian Pepperdine wrote: I have noticed what I think is small but inexplicable change in my K3 shift. Up until a few weeks ago (when I had some other odd issue with the sidetone going to zero hz, thus the crystal filter not seeming to work...) my shift centre frequency was 60. That is, that is where I think the normal is and was demarcated by an asterisk, hence it read *60, and then 55, 50, 45 etc going down, and then when going back up the 60 had the *60 marker. Now the marker is *61. Things still go down and up in 5 hz increments when shifting but the default/normal marked is *61. Why is this? What happened? I don't really discern much diffence (being doing contacts in cw with no problem) .. but the mystery of how this changed and how to change it back (simply to be back to 5 hz steps...?) is pestering me. And yes, my tired eyes don't see much of anything on this in the manuals. But then again my wife has to find my jam for breakfast. tnx Brien Pepperdine VE3VAW Toronto __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3: shift granularity: suggestion
To me the current granularity with SHIFT/WIDTH (50 Hz) is fine. With LO/HI it is 100Hz, which is too high for LO. Also, LO often changes from 0.00 to 0.20 in one step, and taking it to 0.10 takes an extra step. Seems like a bug. Ignacy DOUGLAS ZWIEBEL wrote: Wayne said, We're planning to improve SHIFT granularity (etc.) in a future firmware release. I hope that this will be an added option in the CONFIG. menu. I like it the way it is now (fast)...at least for cw. I am really not looking forward to having to spin that tiny knob to move in 10hz steps. de Doug KR2Q ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 -- View this message in context: http://n2.nabble.com/K3%3A-shift-granularity%3A-suggestion-tp2229337p2232275.html Sent from the Elecraft mailing list archive at Nabble.com. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] K3: Shift behaviour
I can not duplicate this on #202 with the latest firmware. It stops at FC=0.10 even if I keep rotating the knob anti-clockwise. 73, Ken K3IU Alexandr Kobranov wrote: Hello friends, want to know if i missed something: - when on CW mode turning SHIFT to low-end it is going to 0.00 and then jump to 2.7 and radio is off (no signal like I/F switched off). It is for BANDWIDTH 2.8kHz and the same for 0.05kHz so bandwidth independent. On SSB mode SHIFT is going to 0.4 and stop here, no jump to 2.7. Latest F/W installed. There should be some limits based on PITCH settings and bandwith or not? Tried to look in wiki and nothing about this there. http://www.zerobeat.net/mediawiki/index.php/Firmware_anomalies_that_are_considered_normal Maybe it is known, maybe not, maybe it is not normal, maybe yes... Any comments? 73! L. -dst- K3/10 #272 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] K3: Shift behaviour
Ok Ken, thanks, will go through later - maybe there are some other params to check. And reload FW :-) Thanks for now, 73! L. -dst- K3/10 #727 Ken K3IU napsal(a): I can not duplicate this on #202 with the latest firmware. It stops at FC=0.10 even if I keep rotating the knob anti-clockwise. 73, Ken K3IU Alexandr Kobranov wrote: Hello friends, want to know if i missed something: - when on CW mode turning SHIFT to low-end it is going to 0.00 and then jump to 2.7 and radio is off (no signal like I/F switched off). It is for BANDWIDTH 2.8kHz and the same for 0.05kHz so bandwidth independent. On SSB mode SHIFT is going to 0.4 and stop here, no jump to 2.7. Latest F/W installed. There should be some limits based on PITCH settings and bandwith or not? Tried to look in wiki and nothing about this there. http://www.zerobeat.net/mediawiki/index.php/Firmware_anomalies_that_are_considered_normal Maybe it is known, maybe not, maybe it is not normal, maybe yes... Any comments? 73! L. -dst- K3/10 #272 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] K3: Shift behaviour
In a recent message, Alexandr Kobranov [EMAIL PROTECTED] wrote ... want to know if i missed something: - when on CW mode turning SHIFT to low-end it is going to 0.00 and then jump to 2.7 and radio is off No, you are not missing anything, L., I am getting exactly the same as you in CW mode only. I have reported it to [EMAIL PROTECTED] but have not had an acknowledgement. 73 -- David G4DMP Leeds, England, UK -- ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] Frequency Shift
Dave, A BFO shift of up to 20 Hz is to be expected. If you have 100 Hz shifts, then you need to run CAL PLL again - using Spectrogram if possible. Note that you should use a broadband noise source or band noise (with the preamp on) with no signals present. Attempting to set the BFOs with a signal present in the passband will result in frustration. See my article on K2 Dial Calibration at my website www.qsl.net/w3fpr for additional information. 73, Don W3FPR David Robertson wrote: Hi All, I am the owner of 2 K2s, one a K2-100 and the other a qrp model. I built one of the rigs myself but completely aligned both rigs. My question. What can I do to prevent slight frequency shifts when changing filter settings? Both rigs exhibit this problem. The shift is only about 100 hz at the most but I don't think this should happen. Other then the small shifting problem the rigs work perfectly. I know there has been solutions posted on this forum in the past but I seem to not have the ability to search for them. I am using the spectrograph program and following the procedure that accompanied it when downloaded. I must be doing something wrong. It must not be the radios as both exhibit the frequency shift when changing filter bandwidths. Any help or advise would be appreciated. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] Frequency Shift
Tom Hammond caught my 'too quick response' I should have typed CAL FIL below - not CAL PLL. Sorry all and thanks to Tom for noticing. 73, Don W3FPR Don Wilhelm wrote: Dave, A BFO shift of up to 20 Hz is to be expected. If you have 100 Hz shifts, then you need to run CAL PLL again - using Spectrogram if possible. Note that you should use a broadband noise source or band noise (with the preamp on) with no signals present. Attempting to set the BFOs with a signal present in the passband will result in frustration. See my article on K2 Dial Calibration at my website www.qsl.net/w3fpr for additional information. 73, Don W3FPR David Robertson wrote: Hi All, I am the owner of 2 K2s, one a K2-100 and the other a qrp model. I built one of the rigs myself but completely aligned both rigs. My question. What can I do to prevent slight frequency shifts when changing filter settings? Both rigs exhibit this problem. The shift is only about 100 hz at the most but I don't think this should happen. Other then the small shifting problem the rigs work perfectly. I know there has been solutions posted on this forum in the past but I seem to not have the ability to search for them. I am using the spectrograph program and following the procedure that accompanied it when downloaded. I must be doing something wrong. It must not be the radios as both exhibit the frequency shift when changing filter bandwidths. Any help or advise would be appreciated. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
Brett, Yes, the Kenwood TS-820 was a single conversion transceiver that implemented IF shift. To have IF shift in a single conversion receiver it is necessary to change both the VFO and BFO together in synch (and in the proper direction). I believe it could have been done in the K2 microprocessor with enough memory space to accomplish that feat. The K2 microprocessor has been short on available memory space for its entire lifetime. 73, Don W3FPR VR2BrettGraham wrote: No, this is not an LDE - I simply missed sending it originally. In the meantime, I would have sworn the TS-820 my father had did have an IF shift knob, turning that knob caused it to behave like the radio had IF shift this IF shift functionality worked on all bands. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
Morning Dale, Passband Tuning can be incorporated into a single conversion receiver which uses a product detector. The method used in most commercial receivers for amateur use (putting aside DSP) is to have two IF filters in cascade along with mixers. By varying the injection frequencies to these mixers the passband of one filter can be made to 'slide over' the passband of the second filter thus changing the overall IF bandwidth. The input and output signal frequencies are sometimes kept to be the same, sometimes not. It is desireable to do this early on in the receiver chain, but it has been achieved in an outboard addition using audio input. If you view a single conversion receiver which uses a product detector as a dual conversion receiver with the second IF being at audio, then you will see the makings for Passband Tuning and IF Shift are there. The second IF filter required for Passband Tuning would be a good audio filter with steep skirts, although audio DSP might help here if its intermod performance is good. Please understand that I am risking some oversimplifications for the sake of Reflector bandwidth. The problem with implementing anything extra into the K2 which involves tight control over the LO (VCO) and BFO frequencies is, I understand, the firmware. This could be the deciding factor. 73, Geoff GM4ESD Dale WC7S wrote on Friday, February 09, 2007 at 12:21 AM: I would like to have a way to adopt a circuit for passband tuning, similar to what was in the Drake R4B or in the Icom 761. What would be involved to incorporate something in that area? Is it a non-item, from the view of single conversion? Thanks, Dale --... ...-- Dale - WC7S in Wy ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
N7XY queried: One of the strengths of the K2 is its single-conversion design. That is, in part, responsible for the extremely good specifications the receiver enjoys. However, i.f. shift such as other rigs often feature require a multiple-conversion design with all the issues that come with additional mixers, oscillators and complexity. Well, I'm not sure this is totally true. Before I got my first K2, I used a Kenwood TS-180S which had a very nice IF shift feature. It was also a single conversion radio, with an IF of about 8.3 MHz. I loaned the manual to Eric and Wayne so they could see how it was done. Sure wish there was a way to implement it in the K2. TS-820S is another example of single conversion with IF shift. You can do with K2, but bit too granular with current front panel interface. I believe it is even mentioned in the manual. Making a knob into interface for IF shift is entirely possible, since knobs are already used as interface to change frequencies of stuff inside. Firmware says no (apologies to Little Britain ;^) Saying it can't be done not appreciating what IF shift is good for probably helps keep it that way. ;^( 73 HLNY, VR2BrettGraham ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
Brett, that quote was from N6WG, not me. 73, Bob, N7XY On Feb 9, 2007, at 3:57 PM, VR2BrettGraham wrote: N7XY queried: One of the strengths of the K2 is its single-conversion design. That is, in part, responsible for the extremely good specifications the receiver enjoys. However, i.f. shift such as other rigs often feature require a multiple-conversion design with all the issues that come with additional mixers, oscillators and complexity. Well, I'm not sure this is totally true. Before I got my first K2, I used a Kenwood TS-180S which had a very nice IF shift feature. It was also a single conversion radio, with an IF of about 8.3 MHz. I loaned the manual to Eric and Wayne so they could see how it was done. Sure wish there was a way to implement it in the K2. TS-820S is another example of single conversion with IF shift. You can do with K2, but bit too granular with current front panel interface. I believe it is even mentioned in the manual. Making a knob into interface for IF shift is entirely possible, since knobs are already used as interface to change frequencies of stuff inside. Firmware says no (apologies to Little Britain ;^) Saying it can't be done not appreciating what IF shift is good for probably helps keep it that way. ;^( 73 HLNY, VR2BrettGraham ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift--Don't Forget CW-Rev.
Jeff and gang, If you're working CW, don't forget about the CW-Reverse feature of the K2. This feature accomplishes the same thing as IF shift, although the degree of passband frequency shift isn't adjustable in real time. 73 72, Jeff WB5GWB Long Island, NY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
In the article from the contester on the Elecraft site, N6 something, he setup the SSB filters to act a bit like an IF shift. One filter to the left, one to the right, and one center. Thought that was interesting. David Wilburn [EMAIL PROTECTED] K4DGW Jeff Kinzli wrote: Hey friends, how hard would it be to implement something along the lines of an IF shift, ala the TS830S IF shift? That's something I really like about my 830 and it seems like it would be a nice addition to the K2. Along the same lines, would it be feasible to have an outboard S-meter needle? I guess I'm somewhat old fashioned :) I do have the DSP module in my K2, and I guess I could achieve similar results with that, yes? It's just that it's not a simple knob to turn... Thanks for any thoughts, Jeff ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
David Wilburn wrote: In the article from the contester on the Elecraft site, N6 something, he setup the SSB filters to act a bit like an IF shift. One filter to the left, one to the right, and one center. Thought that was interesting. -- Very interesting. I would guess that the result would be rather like two dimensional binaural reception if I understand left, right and center correctly. Did the article appear on this Reflector? 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
This article had a big impact on my choice of the rig. It was written from the user's point of view, and with extensive hands on experience. http://www.elecraft.com/TechNotes/ncjk2100.pdf David Wilburn [EMAIL PROTECTED] K4DGW Geoffrey Mackenzie-Kennedy wrote: David Wilburn wrote: In the article from the contester on the Elecraft site, N6 something, he setup the SSB filters to act a bit like an IF shift. One filter to the left, one to the right, and one center. Thought that was interesting. -- Very interesting. I would guess that the result would be rather like two dimensional binaural reception if I understand left, right and center correctly. Did the article appear on this Reflector? 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
Hi Ron One of the strengths of the K2 is its single-conversion design. That is, in part, responsible for the extremely good specifications the receiver enjoys. However, i.f. shift such as other rigs often feature require a multiple-conversion design with all the issues that come with additional mixers, oscillators and complexity. Well, I'm not sure this is totally true. Before I got my first K2, I used a Kenwood TS-180S which had a very nice IF shift feature. It was also a single conversion radio, with an IF of about 8.3 MHz. I loaned the manual to Eric and Wayne so they could see how it was done. Sure wish there was a way to implement it in the K2. 73, Bob N6WG The Little Station with Attitude ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
Bob, With due respect to Ron, IF Shift is very easy to design into a single conversion receiver with a selective IF filter *provided* that the IF to Audio detector is some form of mixer with BFO injection, such as a product detector. It would probably be difficult to implement in the K2 not because of the required circuits, which are already there, but because of the firmware changes and related alignment problems. Also the control needs to be manual on the front panel, not via some menu. 73, Geoff GM4ESD - Original Message - From: Bob Tellefsen [EMAIL PROTECTED] To: Ron D'Eau Claire [EMAIL PROTECTED]; 'Jeff Kinzli' [EMAIL PROTECTED]; elecraft@mailman.qth.net Sent: Thursday, February 08, 2007 4:40 PM Subject: Re: [Elecraft] IF shift Hi Ron One of the strengths of the K2 is its single-conversion design. That is, in part, responsible for the extremely good specifications the receiver enjoys. However, i.f. shift such as other rigs often feature require a multiple-conversion design with all the issues that come with additional mixers, oscillators and complexity. Well, I'm not sure this is totally true. Before I got my first K2, I used a Kenwood TS-180S which had a very nice IF shift feature. It was also a single conversion radio, with an IF of about 8.3 MHz. I loaned the manual to Eric and Wayne so they could see how it was done. Sure wish there was a way to implement it in the K2. 73, Bob N6WG The Little Station with Attitude ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
RE: [Elecraft] IF shift
Hi, Bob: Yes, I have learned about that one since posting my comment! I tend to forget that controllers today can do things that were not practical a few years ago. Stuart (I think it was) pointed out that Art Collins actually accomplished passband tuning by mechanically rotating the whole oscillator assembly in one of his designs. All of these approaches add complexity. Complexity isn't necessarily bad, but it's almost always more expensive either to design or to reproduce. Ron AC7AC -Original Message- Hi Ron One of the strengths of the K2 is its single-conversion design. That is, in part, responsible for the extremely good specifications the receiver enjoys. However, i.f. shift such as other rigs often feature require a multiple-conversion design with all the issues that come with additional mixers, oscillators and complexity. Well, I'm not sure this is totally true. Before I got my first K2, I used a Kenwood TS-180S which had a very nice IF shift feature. It was also a single conversion radio, with an IF of about 8.3 MHz. I loaned the manual to Eric and Wayne so they could see how it was done. Sure wish there was a way to implement it in the K2. 73, Bob N6WG The Little Station with Attitude ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
What is the point of IF shift? What purpose does it serve? Can't you do the same thing (or nearly so) with RIT? My understanding of IF shift is that it allows you to move an interfering signal to the edge of the passband and attenuate it by doing so. Seems that nearly the same result can be achieved with RIT. Please correct me if I'm wrong on this. 73 de dave ab9ca Jeff Kinzli wrote: Hey friends, how hard would it be to implement something along the lines of an IF shift, ala the TS830S IF shift? That's something I really like about my 830 and it seems like it would be a nice addition to the K2. Along the same lines, would it be feasible to have an outboard S-meter needle? I guess I'm somewhat old fashioned :) I do have the DSP module in my K2, and I guess I could achieve similar results with that, yes? It's just that it's not a simple knob to turn... Thanks for any thoughts, Jeff ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
dave wrote: What is the point of IF shift? What purpose does it serve? Can't you do the same thing (or nearly so) with RIT? My understanding of IF shift is that it allows you to move an interfering signal to the edge of the passband and attenuate it by doing so. Seems that nearly the same result can be achieved with RIT. Please correct me if I'm wrong on this. 73 de dave ab9ca Timing is everything, I just logged on and there was your question. IF shift [a la the TS830] moves the signals in the passband but does not change their pitch. RIT moves them, but their pitch changes. I sold my TS830 with IF shift, and I do miss it on the TS850 and K2 [although the K2 filters are so good, they tend to make up for it a little]. IF Shift [aka passband tuning from the Collins days] is cool on CW, and fantastic on RTTY. Art Collins achieved it in the 75A4 by actually rotating the entire PTO assembly to keep the received pitch the same. Now days it's done with magic. 73, Fred K6DGW - Northern California Contest Club - CU in the 2007 CQP Oct 6-7 - www.cqp.org ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
RE: [Elecraft] IF shift
One of the strengths of the K2 is its single-conversion design. That is, in part, responsible for the extremely good specifications the receiver enjoys. However, i.f. shift such as other rigs often feature require a multiple-conversion design with all the issues that come with additional mixers, oscillators and complexity. Even so, you can enjoy i.f. shift with the K2. It's not as flexible as the multiple-conversion receivers use, but it does a FB job for me. Simply set up for different i.f. bandpass positions on your four XFIL filter positions. Remember that FL1 is always used for transmit, so that one must be set for the best transmit audio quality; its position will be set, in part, by your voice and the microphone you use. Even so, you'll probably find it's the best general-purpose position for receive too. Now you can set the other filters to put the passband closer to or farther from the carrier frequency as you desire. I have one position set closer to the carrier frequency for SWL-ing, since that provides better bass response on broadcast signals. You don't even have to use the OPT1 filter for the other positions, if you want a tighter bandwidth. You can use adjustable-bandwidth filters and crank one down tight for minimum bandpass and set it according to your tastes. Now, when you encounter a weak or QRM-ridden signal, you can select between the four different filter and filter settings by pressing the XFIL button. Ron AC7AC -Original Message- Hey friends, how hard would it be to implement something along the lines of an IF shift, ala the TS830S IF shift? That's something I really like about my 830 and it seems like it would be a nice addition to the K2. Along the same lines, would it be feasible to have an outboard S-meter needle? I guess I'm somewhat old fashioned :) I do have the DSP module in my K2, and I guess I could achieve similar results with that, yes? It's just that it's not a simple knob to turn... Thanks for any thoughts, Jeff ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
RE: [Elecraft] IF shift
Jeff, IF shift is practical in multiconversion receivers, but the K2 is a single conversion design (for fewer spurs, better dynamic range and better IMD). To implement IF shift in a single conversion receiver would mean changing the BFO in sync with the VFO - and that is not an easy feat. It might be practical in a one-band, one sideband receiver, but I don't think you would want to sacrifice your multiband K2 just to have IF shift. If you wish to extend the principle to both sidebands or to additional bands, the scheme gets complex. Yes, a larger microprocessor could possibly do that, but there are other requests for added functions when (and if) more storage space is available - due to the complexity of IF shift in a single conversion design, I would believe that is WAY down on Wayne's list of 'things to do'. 73, Don W3FPR -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Jeff Kinzli Sent: Wednesday, February 07, 2007 6:50 PM To: elecraft@mailman.qth.net Subject: [Elecraft] IF shift Hey friends, how hard would it be to implement something along the lines of an IF shift, ala the TS830S IF shift? That's something I really like about my 830 and it seems like it would be a nice addition to the K2. Along the same lines, would it be feasible to have an outboard S-meter needle? I guess I'm somewhat old fashioned :) I do have the DSP module in my K2, and I guess I could achieve similar results with that, yes? It's just that it's not a simple knob to turn... Thanks for any thoughts, Jeff ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.17.29/673 - Release Date: 2/6/2007 5:52 PM -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.17.29/673 - Release Date: 2/6/2007 5:52 PM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF shift
Dave and Jeff, Dave you are right in saying that that both IF Shift and RIT (or even the main tuning knob) can be used to move an interfering signal out of the IF passband. The advantage of IF Shift is that the 'beat note' from / of the signal you want does not change as you move the interfering signal, but when using RIT it will change just as it would when tuning the receiver. This means that if RIT is used to get rid of the interfering signal the audio beat note from the wanted signal could change enough to make it necessary to bypass any narrow audio filter used for CW reception, assuming that the receiver does not have a BFO whose frequency can be changed using a front panel control to maintain the beat note at a fixed value. The required circuitry for IF Shift exists within the K2, but I imagine that the required changes to the firmware would determine whether or not the circuits could be used in this way. Jeff, I think that an outboard S meter would be quite feasible if the K2's AGC does not drift. 73, Geoff GM4ESD - Original Message - From: dave [EMAIL PROTECTED] To: elecraft@mailman.qth.net Sent: Thursday, February 08, 2007 12:07 AM Subject: Re: [Elecraft] IF shift What is the point of IF shift? What purpose does it serve? Can't you do the same thing (or nearly so) with RIT? My understanding of IF shift is that it allows you to move an interfering signal to the edge of the passband and attenuate it by doing so. Seems that nearly the same result can be achieved with RIT. Please correct me if I'm wrong on this. 73 de dave ab9ca ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] I.F. shift thoughts
Wayne Burdick wrote: I think I need an understudy :) Leigh L Klotz, Jr. wrote: Now you've done it... Everyone form an orderly queue :-) -- Nosey Nick Waterman, G7RZQ, K2 #5209. use Std::Disclaimer;[EMAIL PROTECTED] Please sponsor me! http://www.justgiving.com/noseynick SCSI: System Can't See It ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF Shift, PB Tuning, and why neither completely eliminates QRM
--- wayne burdick [EMAIL PROTECTED] wrote: These terms are often used interchangeably. It's like the terms biannual and semi-annual. One is supposed to mean every six months and the other every other year, but some dictionaries list them as synonyms, because you can make a case for either word having either definition. I'd love to go for a ride in a biplane, but you'll never catch me going near a semi-plane! Is that the same as the difference between flammable and inflammable? Boy, I found out about THAT one the hard way! -- Woody from Cheers 73, Ken Alexander VE3HLS ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
RE: [Elecraft] IF Shift vs. Passband Tuning?
The first time I saw the term passband tuning was on the Collins 75A4 receiver. It shifted the BFO in one direction and the main PTO in the other direction. The two were linked together with a mechanical strap. The idea was that the pitch of the received signal would not change nor would the actual selectivity bandwidth. It was useful in both CW and SSB. The background pitch changed, but not the tone of the signal being received. Then the Drake receivers came along, and did the same thing with the variable L/C filters in the 50kHz IF. A different approach, but the effect was the same. The passband could be adjusted from one side of zero beat to the other. I thought that PBT a great feature. Then I got a Kenwood TS-930S which had VBT - Variable Bandwidth Tuning. This feature allowed for the adjustment of the difference between two edges of two filters - like opening and closing a sliding door - the gap could be adjusted wider or narrower, thus changing the selectivity. The center frequency does not change. You get continuously-variable selectivity this way and can respond to any band condition easily. Now I am used to that feature and miss it on other rigs 73, John W2XS. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] I.F. shift thoughts
The KX1 has a variable selectivity control. Narrowing up the bandpass is a nice thing to be able to do continuously. Would that be easier to implement than the IF Shift function? I would like that feature on the K2. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF Shift, PB Tuning, and why neither completely eliminates QRM
Could the SSB filter on the SSB Option board be made into a variable-passband filter rather than modifying the CW filter? On August 8, 2006 11:18 pm, wayne burdick wrote: You could also modify the K2's variable-passband CW filter to optimize for wide bandwidths (SSB/DATA) rather than narrow. The same crystals are used both in the main (stock) filter and the KSB2. All you'd need to do is use smaller varactor diodes, preferably a matched set. You might be able to get a 1200-2400 Hz passband range with acceptably low ripple. -- Darrell Bellerive Amateur Radio Stations VA7TO and VE7CLA Grand Forks, British Columbia, Canada ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] IF Shift, PB Tuning, and why neither completely eliminates QRM
On Wednesday, August 09, 2006 at 7:18 AM Wayne Burdick wrote: A much better approach to the Filter Shifing problem would be to actually *narrow* the first crystal filter, protecting all subsequent stages. --- May I second Wayne's suggestion. In practice I have found that it is very useful to be able to select roofing filters having different bandwidths, at the moment down to 1.5 kHz, with good stopband attenuation. In spite of the protection offered by *narrow* roofing filters, I believe that it is wise to have all the stages before the second IF filter(s) capable of handling strong signals, i.e. IIP3s of +40dbm or better, to reduce the crud generated by those unwanted signals that are very close in and get through a narrow bandwidth roofing filter. One price is high current draw which is probably not acceptable if the rig is to be used portable. The phase noise of the LOs must also be suitably low to avoid compromising dynamic range etc. Lastly the filters themselves must also be capable of handling strong signals. 73, Geoff GM4ESD ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
Re: [Elecraft] I.F. shift thoughts
Now you've done it... On Tue, 8 Aug 2006 7:47 pm, wayne burdick wrote: I think I need an understudy :) ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
RE: [Elecraft] IF Shift vs. Passband Tuning?
Jeff, As far as I know, IF shift and Passbasnd Tuning are the same thing - just different names for the advertizing hype folks to enjoy. The major benefit of Passband tuning is that an interfering signal can be moved off the edge of that reciever passband without changing the pitch of the received signal. IMHO, the same thing can be accomplished by reducing the receiver bandwidth - it matters not whether it is CW or SSB. If the offending signal is on the low side of the wanted signal, it will be necessary to reduce the low frequency content on the wanted signal - OTOH with a voice signal, there will be a lot of information (intelligibility) lost if the passband does not contain energy in the 300 to 500 Hz range, so cutting the low frequency offending signal will result in a loss of intelligibility for the wanted signal. Cutting the high frequency end is quite feasible, and can be accomplished easily by using the variable bandwidth filter provided in the base K2. I can set the normal IF filters to a bandwidth of 1600 Hz and still maintain intelligibility for the male voice (the female voice begins to loose intelligibility at a bandwidth of 1800 Hz or less). Set the low frequency corner of the passband at 300 Hz and accept whatever the high froequency end may be - this is not passband tuning, but is reduction of the high frequency end of the received signal, and I find it as useful (if not more useful) than true passband tuning. I normall set the SSB IF filters to OP1 for the FL1 position, then 300 Hz less for the FL2 position - note that the numbers displayed on the K2 may not be a good indication of the actual bandwidth for wide filter settings, use Spectrogram to determine the actual filter width. With a 2300 (or 2400 Hz) OP1 bandwidth, I set Spectrogram markers at 300 and 2600 Hz then center the passband between those markers. Then FL2 thru FL4 are set to progressively more narrow bandwidths - FL2 = 2200 Hz, FL3 = 1900 Hz, FL4 = 1600 Hz. The important thing is to keep he low frequency corner of the bandpass at 300 Hz to maintain good intelligiblilty. Be aware that the filter bandwidths indicated by the K2 may be substantially different than what is indicated by the K2 display - use Spectrogram to determine the actual filter bandwidth - If the K2 indicates 2200 kHz for the filter bandwidth, it may acually be 2600 Hz wide and quite ragged in the passband - sett it for the actual width as observed o the Spectrogram display. OK, all the above is valid for SSB - for CW, I find it sufficient to simply switch to a more narrow IF filter - if you center the passband at your chosen sidetine pitch, bothe the low and high requencies will be reduced by switching to a more narrow filter. 73, Don W3FPR -Original Message- Are IF shift and passband tuning (PBT) the same thing? I assume that they produce the same effect. I have a Ten-Tec Argonaut V that has PBT, but I have never used that feature, thus I don't miss it on my K2. I guess I just don't grasp what PBT would do for me that I can't do with RIT and the variable width DSP filter of the Argonaut V. However, I'm a CW op; someone commented that IF shift is more useful on SSB than on CW. Why is that? Thanks, 73 72, Jeff WB5GWB Long Island, NY ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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
RE: [Elecraft] Frequency shift in old K2
Tim, That certainly sounds like a bad solder connection or an unsoldered one to me. Look in the BFO area first if it effects the filter passband, otherwise the VCO area is another possible candidate for suspicion. Yes, even in something that has been working for almost 6 years, an unsoldered connection can still be the source of a problem. Use the schematic and parts placement diagrams in the manual to locate the questionable components. 73, Don W3FPR -Original Message- For awhile, I've been experiencing a down shift of about 200 hertz, but rarely and randomly in my K2 serial 0063. It's enough to change the characteristic tone in the receiver and degrades from the filter settings. Any suggestions as to where to start looking? Doesn't seem to be temperature-dependent but I could be wrong. And it, randomly, shifts back as well. Thanks. Tim K5OI Ruidoso, NM ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net 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