Re: [Elecraft] WJST and the K3
Doesn't look like it'll fit... Where as the Tamura has 3 possible pins on a side at .01 spacing the Bourns part has 4 possible pin locations per side at the same .01 spacing... So they aren't going to be pretty drop in replacements.' ~Brett (N7MG) On Sat, Jul 3, 2010 at 4:48 AM, Paul Christensen wrote: >> So the K3 has a fully floating ground on the line audio input, isolated >> from >> the chassis??? Is that correct? 73 Tom > > The K3's line input transformer primary is connected to the 1/8" TRS jack > using tip and sleeve where the sleeve floats above chassis ground. > > The on-line schematic of the KIO3 board was revised a few weeks ago and it > looks like the Bourns LM-NP-1001 transformer may now be an alternative from > Elecraft although I haven't looked at pin compatibility with the existing > Tamura TTC-108 transformers. > > According to Jack Smith's measurements, the Bourns transformers have very > good frequency response and THD characteristics as long as input levels > remain at typical -10 dBV from consumer-grade PC sound cards. At just USD > $1.75 ea. from Mouser, they look like a good value. > > Paul, W9AC > > __ > 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] WJST and the K3
My recent K3 has Bournes transformers on the KIO3A board. 73, Pete N4ZR The World Contest Station Database, updated daily at www.conteststations.com The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com, spots at telnet.reversebeacon.net, port 7000 On 7/3/2010 7:48 AM, Paul Christensen wrote: >> So the K3 has a fully floating ground on the line audio input, isolated >> from >> the chassis??? Is that correct? 73 Tom >> > The K3's line input transformer primary is connected to the 1/8" TRS jack > using tip and sleeve where the sleeve floats above chassis ground. > > The on-line schematic of the KIO3 board was revised a few weeks ago and it > looks like the Bourns LM-NP-1001 transformer may now be an alternative from > Elecraft although I haven't looked at pin compatibility with the existing > Tamura TTC-108 transformers. > > According to Jack Smith's measurements, the Bourns transformers have very > good frequency response and THD characteristics as long as input levels > remain at typical -10 dBV from consumer-grade PC sound cards. At just USD > $1.75 ea. from Mouser, they look like a good value. > > Paul, W9AC > > __ > 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] WJST and the K3
> So the K3 has a fully floating ground on the line audio input, isolated > from > the chassis??? Is that correct? 73 Tom The K3's line input transformer primary is connected to the 1/8" TRS jack using tip and sleeve where the sleeve floats above chassis ground. The on-line schematic of the KIO3 board was revised a few weeks ago and it looks like the Bourns LM-NP-1001 transformer may now be an alternative from Elecraft although I haven't looked at pin compatibility with the existing Tamura TTC-108 transformers. According to Jack Smith's measurements, the Bourns transformers have very good frequency response and THD characteristics as long as input levels remain at typical -10 dBV from consumer-grade PC sound cards. At just USD $1.75 ea. from Mouser, they look like a good value. Paul, W9AC __ 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] WJST and the K3
So the K3 has a fully floating ground on the line audio input, isolated from the chassis??? Is that correct? 73 Tom - Original Message - From: "Edward R Cole" To: Sent: Saturday, July 03, 2010 4:08 AM Subject: [Elecraft] WJST and the K3 > Bill, W5WVO gave a very detailed reply. > > I would like to say the K3 requires no interface for digital modes. > Just run two audio patch cords (you can buy then at RS) from the > speaker and mic jacks on the computer soundcard to the LINE-IN and > LINE-OUT jacks on the KVX3 panel. All the audio interfacing is done > by the K3. Run a standard serial cable (RS-232) cable from the > computer to the K3. In the WSJT sw open OPTIONS under the SETUP tab > and enter your station info and chose PTT Port 1. In the K3 change > your mode to DATA. That's it! I leave my mic and compression set > for voice and adjust audio at the computer. > > You will have to adjust audio levels in the computer using the audio > dialog box (I right-click on the speaker icon at the lower bottom of > the screen to open this). > Chose OPEN VOLUME CONTROL and PLAYBACK to set transmit levels with > the WAVE slider control. Back to WSJT, Click OPEN TEST MESSAGES > under the SETUP tab. You will see several windows marked TX1, TX2, > etc. Just click one to place the transmitter into TX and adjust the > slider until you just reach full power out. You can click the others > if you are curious but TX1 usually is all that you need for adjusting > transmit audio. > > Click options on the volume window to select PROPERTIES and RECORD to > gain access to the speaker control to set the level for the > Spectra-JT display window. > You really should read the WSJT instruction available from the WSJT > website. He gives detailed instructions for set up there. > > For other soundcard programs follow their instructions for setup. > > The K3 is ready to use for digital on the DATA mode and no extra > interface is needed. Way to go Elecraft! > > 73, Ed - KL7UW > -------------- > > Message: 9 > Date: Fri, 2 Jul 2010 10:14:38 -0700 (PDT) > From: Lee Buller > Subject: [Elecraft] WJST and the K3 > To: Elecraft Reflector > Message-ID: <351288.93695...@web81308.mail.mud.yahoo.com> > Content-Type: text/plain; charset=us-ascii > > > OK I got the 6 meter bug...as you all know by now > > I have been trying to set up WJST for the K3. Can anyone send me > some information as to how to do this? I am under the impression > that it needs to be on SSB - but can't find information on which > sideband. How do you key the rig on SSB, it does not want to do so > because I think it wants to see DATA. > > I have a SignaLink USB - works great on RTTY and PSK...but seems to > not want to deal with WJST. I've RTFM several times but am > lost. Anyone can give me a hint...a web page to read (I've read a > lot of them today)..or something... > > I am missing something somewhere. Who is the expert I can > communicate off the list! > > Lee K0WA > > > > 73, Ed - KL7UW, WD2XSH/45 > == > BP40IQ 500 KHz - 10-GHz www.kl7uw.com > EME: 144-600w, 432-100w, 1296-60w, 3400-fall 2010 > DUBUS Magazine USA Rep dubus...@hotmail.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 __ 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] WJST and the K3
Bill, W5WVO gave a very detailed reply. I would like to say the K3 requires no interface for digital modes. Just run two audio patch cords (you can buy then at RS) from the speaker and mic jacks on the computer soundcard to the LINE-IN and LINE-OUT jacks on the KVX3 panel. All the audio interfacing is done by the K3. Run a standard serial cable (RS-232) cable from the computer to the K3. In the WSJT sw open OPTIONS under the SETUP tab and enter your station info and chose PTT Port 1. In the K3 change your mode to DATA. That's it! I leave my mic and compression set for voice and adjust audio at the computer. You will have to adjust audio levels in the computer using the audio dialog box (I right-click on the speaker icon at the lower bottom of the screen to open this). Chose OPEN VOLUME CONTROL and PLAYBACK to set transmit levels with the WAVE slider control. Back to WSJT, Click OPEN TEST MESSAGES under the SETUP tab. You will see several windows marked TX1, TX2, etc. Just click one to place the transmitter into TX and adjust the slider until you just reach full power out. You can click the others if you are curious but TX1 usually is all that you need for adjusting transmit audio. Click options on the volume window to select PROPERTIES and RECORD to gain access to the speaker control to set the level for the Spectra-JT display window. You really should read the WSJT instruction available from the WSJT website. He gives detailed instructions for set up there. For other soundcard programs follow their instructions for setup. The K3 is ready to use for digital on the DATA mode and no extra interface is needed. Way to go Elecraft! 73, Ed - KL7UW -- Message: 9 Date: Fri, 2 Jul 2010 10:14:38 -0700 (PDT) From: Lee Buller Subject: [Elecraft] WJST and the K3 To: Elecraft Reflector Message-ID: <351288.93695...@web81308.mail.mud.yahoo.com> Content-Type: text/plain; charset=us-ascii OK I got the 6 meter bug...as you all know by now I have been trying to set up WJST for the K3. Can anyone send me some information as to how to do this? I am under the impression that it needs to be on SSB - but can't find information on which sideband. How do you key the rig on SSB, it does not want to do so because I think it wants to see DATA. I have a SignaLink USB - works great on RTTY and PSK...but seems to not want to deal with WJST. I've RTFM several times but am lost. Anyone can give me a hint...a web page to read (I've read a lot of them today)..or something... I am missing something somewhere. Who is the expert I can communicate off the list! Lee K0WA 73, Ed - KL7UW, WD2XSH/45 == BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-600w, 432-100w, 1296-60w, 3400-fall 2010 DUBUS Magazine USA Rep dubus...@hotmail.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
Re: [Elecraft] WJST and the K3
Hi Lee, Operating WSJT with the K3 is very simple. You do not need your SignaLink USB device, though if you insist on using it, you can certainly do so -- it's just that I do not know anything about it. You'll need to find advice on using it elsewhere. Using the sound card in your computer, simply run two jumpers --- one from the speaker or line out output from your sound card to the Line In jack on the K3, and the other from the Line Out jack on the K3 to the Mic or Line In jack on the sound card. Those are the only connections you need. You can switch into transmit mode using the VOX capabilities on the K3. (You will need to enable VOX operation on the K3.) A fancy T-R switching setup is unnecessary, but again you can do it the complicated way if you insist. You will doubtless get all kinds of advice on how to do this, but the truth is, you don't need to do it at all. VOX works fine. And it's easy. There is a Line Out level adjustment in the K3 configuration menu. Set it to "NOR" mode (fixed-level output, does not change with AF Gain control) and set the output level to about 7 (pretty low). This avoids distortion caused by too hot an output level into the sound card. Then adjust the sound card mic or line in level (line is usually a better choice) to produce an appropriate level on the WSJT waterfall display. All this is described in the WSJT user manual, and I'm not going to repeat it all here. Then adjust the sound card's speaker or line out output to produce full normal transmit RF output from the K3. Adjust the speaker out level until get about four bars or so of ALC indication on the K3; this will produce full RF output on all the FSK441 audio frequencies. The microphone and compression controls on the K3 are NOT used in this configuration; they are bypassed. Use the WSJT interface to create test messages or to send single tones. Again, all this is covered in the WSJT manual. You should set up your K3 so that the digital mode of choice is DATA A. This mode should be used with all sound card based digital modes except for RTTY (and you can use it for RTTY too if you want to). DATA A mode is like USB mode except that it automatically disables transmit equalization and compression, neither of which you want on a digital mode, and it bypasses the front-panel mic and compression level controls. The K3 has an excellent cooling system for the PA, and you can safely run it at full 100 watts output for 30 seconds at a time, 50% duty cycle. The fan will run fast and probably audibly after a little while, but that's what it is there for. The PA will NOT overheat. It's well-designed to be able to handle this kind of operation. Once you have transmit and receive working, you will need to learn the weak-signal operational protocols. There is ONE correct way to operate these modes using WSJT, and making it up as you go along, as you might on phone or CW, is NOT an option. You have to do your schoolwork and learn how to do it right. Resources: Ping Jockey Central http://www.pingjockey.net/cgi-bin/pingtalk; the WSJT Group page http://www.ykc.com/wa5ufh/. There are many others; these two are essential. On the latter site, look especially in the left-hand frame for links to the many tutorial articles. Join the WSJT online groups and mailing lists, ask a LOT of questions, and make sure you understand the answers. If at all possible, find someone in your area who has been through this whole process to help you get up to speed. I won't BS you, there is a somewhat steep learning curve to WSJT, but it is well worth it! Persevere and you will get there. Expect to make a lot of mistakes until you get the hang of it, and don't get discouraged, but DO continue to use the Internet to NETWORK and READ. Best of luck! Hope to see you on PJ one of these days. Bill W5WVO -- From: "Lee Buller" Sent: Friday, July 02, 2010 11:14 AM To: "Elecraft Reflector" Subject: [Elecraft] WJST and the K3 > > OK I got the 6 meter bug...as you all know by now > > I have been trying to set up WJST for the K3. Can anyone send me some > information as to how to do this? I am under the impression that it needs > to be on SSB - but can't find information on which sideband. How do you > key the rig on SSB, it does not want to do so because I think it wants to > see DATA. > > I have a SignaLink USB - works great on RTTY and PSK...but seems to not > want to deal with WJST. I've RTFM several times but am lost. Anyone can > give me a hint...a web page to read (I've read a lot of them today)..or > something... > > I am missing something somewhere. Who is the expert I can communicate off > the list! > > Lee K0WA > >
Re: [Elecraft] WJST and the K3
Lee, 99% of all digi modes are on USB, However I use the digi mode on the K3. In WSJT program Go to setup , Option , then select your com port. GL 73 Ken K5DNL - --- On Fri, 7/2/10, Lee Buller wrote: > From: Lee Buller > Subject: [Elecraft] WJST and the K3 > To: "Elecraft Reflector" > Date: Friday, July 2, 2010, 12:14 PM > > OK I got the 6 meter bug...as you all know by > now > > I have been trying to set up WJST for the K3. Can > anyone send me some information as to how to do this? > I am under the impression that it needs to be on SSB - but > can't find information on which sideband. How do you > key the rig on SSB, it does not want to do so because I > think it wants to see DATA. > > I have a SignaLink USB - works great on RTTY and PSK...but > seems to not want to deal with WJST. I've RTFM several > times but am lost. Anyone can give me a hint...a web > page to read (I've read a lot of them today)..or > something... > > I am missing something somewhere. Who is the expert I > can communicate off the list! > > Lee K0WA > > = > > Ham Radio Operators: Kansas QSO Party is August > 28-29, 2010. See www.ksqsoparty.org for details > > In our day and age it seems that Common Sense is in short > supply. If you don't have any Common Sense - get some > Common Sense and use it. If you can't find any Common > Sense, ask for help from somebody who has some Common > Sense. Is Common Sense divine? > > Common Sense is the image of the Creator expressing > revealed truth in my mind. - J. Wolf > __ > 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
[Elecraft] WJST and the K3
OK I got the 6 meter bug...as you all know by now I have been trying to set up WJST for the K3. Can anyone send me some information as to how to do this? I am under the impression that it needs to be on SSB - but can't find information on which sideband. How do you key the rig on SSB, it does not want to do so because I think it wants to see DATA. I have a SignaLink USB - works great on RTTY and PSK...but seems to not want to deal with WJST. I've RTFM several times but am lost. Anyone can give me a hint...a web page to read (I've read a lot of them today)..or something... I am missing something somewhere. Who is the expert I can communicate off the list! Lee K0WA = Ham Radio Operators: Kansas QSO Party is August 28-29, 2010. See www.ksqsoparty.org for details In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - J. Wolf __ 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
