[Elecraft] Elecraft K3 PSK D and DX4WIN?
Hi, Who is familiary with PSK D (Elecraft K3) mode? DX4WIN generates audio stream (PSK31 from soundcart only). How get the PSK D data stream? Thanks for idea. 73, Milan __ 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 PSK-D Split Operation
On Jan 6, 2012, at 4:32 AM, Gary Gregory garyvk...@gmail.com wrote: *Bill, By all means educate me please. Why would split be used on a narrow bandwidth signal such as PSK31? Would you not be just consuming twice the amount of bandwidth as needed? I have casually operated PSK31 and I have not seen the band so crowded that operating split would be needed. Curious I didn't see an answer to your original question, but I think it deserves an answer. Quite often, when working DX, a simplex pileup can cause problems. Stations calling the DX can cover up reception of the DX station. The DX station works someone, but that someone can't hear because of all the other stations calling. This is true in CW and Phone, but is especially true in FSK and PSK modes, where only the strongest signals are decoded. By going to split, the DX stations keeps his frequency clear, so that all stations can hear him respond. This greatly speeds up the pileup, as those doing excessive calling won't interfere with a response from the DX. While such pileups aren't common in PSK, they are pretty common on FSK RTTY. Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net Web: http://boringhamradiopart.blogspot.com Quote: Not within a thousand years will man ever fly! -- Wilbur Wright, 1901 __ 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 psk D splater
Hello David, If a PSK signal is generated in an early stage of a transmitter (or is fed into an input of a transmitter), then all of the transmitter's stages which follow should be linear to keep the signal clean. In the case of the basic type of PSK 31.25 signal consisting of a single tone, whose phase is changed by 180 degrees, the change of phase results in sidebands spaced 31.25 kHz each side of the main signal. If the transmitter's stages which follow are not adequately linear, then IMD products could create splatter. In the case of solid state linear amplifiers, especially those using a 12 V DC supply, to prevent poor linearity it is necessary to use a DC supply and interconnecting cables/ connectors which do not allow the supply voltage to sag with increasing current draw. I note that you said that there is almost a difference of one volt between 25W and 100W key down. 73, Geoff LX2AO On May 30, 2012 at 3:13 PM, David Moes VE3DVY wrote: Question, What can cause splatter when using PSK-D I had the power dialed to 25W so I certainly wasn.t running to much power, and just to be sure that I was actually using PSK -d I had pulled the audio line in/out from the K3. Am I missing something? __ 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 psk D splater
Oooops :-( In my message to David Moes, I said: phase results in sidebands spaced 31.25 kHz each side of the main signal. If the transmitter's stages which follow are not adequately linear, then IMD products could create splatter. I meant 31.25 Hz not 31.25 kHz. 73, Geoff LX2AO __ 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 psk D splater
Thanks Geoff Understood. I have already shortened the leads quite a bit. and made a decent change in the voltage drop cant remember the difference. Last night I was also able to make some tests (before the lead length change) using the K3 into a dummy and the second reciever with a very short antenna and DIGIPAN My signal on PSK D looked great right up to full power. so I think I have everyting right and shouldn't have worried about what the other guy had said. The reason it had me going was that having worked PSK31 for many years using my old rig an then the K3 using DATA A I dont think Ive had any complaints for a long time. and on the first QSO I had with PSK-D someone complained. Murphy s law I guess. David Moes VE3DVY PS sorry that you are getting this twice Geoff initially I sent to wrong address I intended to post to the list On 5/31/2012 10:52 AM, Geoffrey Mackenzie-Kennedy wrote: Hello David, If a PSK signal is generated in an early stage of a transmitter (or is fed into an input of a transmitter), then all of the transmitter's stages which follow should be linear to keep the signal clean. In the case of the basic type of PSK 31.25 signal consisting of a single tone, whose phase is changed by 180 degrees, the change of phase results in sidebands spaced 31.25 kHz each side of the main signal. If the transmitter's stages which follow are not adequately linear, then IMD products could create splatter. In the case of solid state linear amplifiers, especially those using a 12 V DC supply, to prevent poor linearity it is necessary to use a DC supply and interconnecting cables/ connectors which do not allow the supply voltage to sag with increasing current draw. I note that you said that there is almost a difference of one volt between 25W and 100W key down. 73, Geoff LX2AO On May 30, 2012 at 3:13 PM, David Moes VE3DVY wrote: Question, What can cause splatter when using PSK-D I had the power dialed to 25W so I certainly wasn.t running to much power, and just to be sure that I was actually using PSK -d I had pulled the audio line in/out from the K3. Am I missing something? __ 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] K3 psk D splater
Last evening I was trying another aspect of my K3I often work PSK using AFSK but I thought Id give it a try using PSK-D using Kcomm I set everyting and it was decoding fine on the K3 display and in Kcomm.There was a strong station that was calling CQ so i gave him a call while having a good QSO he mentioned that I was splattering a bit and I should not drive as hard. rather than explaining that I wasnt using AFSK I just quickly said thanks Ill look into it and 73. Question, What can cause splatter when using PSK-D I had the power dialed to 25W so I certainly wasn.t running to much power, and just to be sure that I was actually using PSK -d I had pulled the audio line in/out from the K3. Am I missing something? I will be trying again hooking my other rig up to another computer so that I can monitor my output in Fldigi, just in case he was seeing issues at his end. David Moes VE3DVY __ 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 psk D splater
The short answer is that splatter can be caused by just about anything between your keyboard and his audio out. Analyzing just one occurrence is nearly impossible. There is a lot of good verbiage in the archives about keeping your signal clean and maintaining a means for inspecting that yourself. The desired answer to the other station's report is I monitor that constantly, and my signal is clean leaving. What do you get when you monitor your own signal? Do you have something to do that, and do you know how to use it to get correct readings on yourself? Beyond that, even going through one amplifier means that IMD products will be down 35 dB for a well functioning amplifier. When your signal is S3 or S4, the IMD is way down. If the other guy was loud, then your primary signal, even at 25 watts, is likely s9 or maybe even 20 over. In that case even that -35 dB can sound like a local signal. If he's doing what so many people seem to do, run his preamp constantly on, RF gain max all the time, his RX, even a K3, can add 20 dB to the IMD on your signal, ESPECIALLY if using SSB filters for RX. But if you are not perfectly clear and measured about what you are transmitting, that argument won't go anywhere. Again, belaboring intentional, trick is to not have any questions about the signal you are transmitting. Even better you have graphics on it, and can send it to him in an email. 73, Guy. On Wed, May 30, 2012 at 9:13 AM, dm...@nexicom.net wrote: Last evening I was trying another aspect of my K3I often work PSK using AFSK but I thought Id give it a try using PSK-D using Kcomm I set everyting and it was decoding fine on the K3 display and in Kcomm.There was a strong station that was calling CQ so i gave him a call while having a good QSO he mentioned that I was splattering a bit and I should not drive as hard. rather than explaining that I wasnt using AFSK I just quickly said thanks Ill look into it and 73. Question, What can cause splatter when using PSK-D I had the power dialed to 25W so I certainly wasn.t running to much power, and just to be sure that I was actually using PSK -d I had pulled the audio line in/out from the K3. Am I missing something? I will be trying again hooking my other rig up to another computer so that I can monitor my output in Fldigi, just in case he was seeing issues at his end. David Moes VE3DVY __ 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 psk D splater
On 5/30/2012 6:13 AM, dm...@nexicom.net wrote: Question, What can cause splatter when using PSK-D Splatter is simply distortion. Anything in the audio chain can cause splatter, from the computer to the audio section of the K3. Many (most?) computer sound cards will create distortion if turned up too high, and turning it up too high can also cause the input of the radio to create distortion. You can hook a scope to the output of the sound card and watch it for clipping of the sine wave as you adjust the gain (on the Windows PLAYBACK mixer). Turn the gain up until it you just begin to see clipping, or until the signal stops getting stronger, then reduce the gain until the voltage drops to one half of that value (that is, the trace is half as tall). If you don't have a scope, LISTEN to the sound card with headphones and make the same adjustment. What you're listening for is any harshness that appears when you turn it up, and when you hear it, reduce the gain until it sounds half as loud. Now you're ready to adjust the Line Input gain of the K3 according to the K3 manual. 73, Jim Brown 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
Re: [Elecraft] K3 psk D splater
On Wed, May 30, 2012 at 9:42 AM, Jim Brown j...@audiosystemsgroup.com wrote: On 5/30/2012 6:13 AM, dm...@nexicom.net wrote: Question, What can cause splatter when using PSK-D Splatter is simply distortion. Anything in the audio chain can cause splatter, from the computer to the audio section of the K3. Many (most?) computer sound cards will create distortion if turned up too high, and turning it up too high can also cause the input of the radio to create distortion. You can hook a scope to the output of the sound card and watch it for clipping of the sine wave as you adjust the gain (on the Windows PLAYBACK mixer). Turn the gain up until it you just begin to see clipping, or until the signal stops getting stronger, then reduce the gain until the voltage drops to one half of that value (that is, the trace is half as tall). If you don't have a scope, LISTEN to the sound card with headphones and make the same adjustment. What you're listening for is any harshness that appears when you turn it up, and when you hear it, reduce the gain until it sounds half as loud. Now you're ready to adjust the Line Input gain of the K3 according to the K3 manual. You missed the point - he's not using an external audio feed to the K3. I've never used Kcomm, but if it operates in PSK D mode, it must be sending commands, with text, to the K3, and the K3 does all of the modulation. 73, ~iain / N6ML __ 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 psk D splater
Right! He said he was going to set up an outside monitor to look at his signal. Perhaps when that's set up it would be interesting to compare the Kcomm generated text with just the K3 Utility. Don't know why it would make a difference but could be a starting place if it does. Rick K6LE On 5/30/2012, at 9:52 , iain macdonnell - N6ML a...@dseven.org wrote: You missed the point - he's not using an external audio feed to the K3. I've never used Kcomm, but if it operates in PSK D mode, it must be sending commands, with text, to the K3, and the K3 does all of the modulation. 73, ~iain / N6ML __ 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 psk D splater
And you missed that Jim was talking about the RECEIVE station overdriving the sound card for decoding. ;-) Both sides need to have the correct settings before making judgments. Rick wa6nhc -Original Message- From: iain macdonnell - N6ML On Wed, May 30, 2012 at 9:42 AM, Jim Brown j...@audiosystemsgroup.com wrote: On 5/30/2012 6:13 AM, dm...@nexicom.net wrote: Question, What can cause splatter when using PSK-D Splatter is simply distortion. Anything in the audio chain can cause splatter, from the computer to the audio section of the K3. Many (most?) computer sound cards will create distortion if turned up too high, and turning it up too high can also cause the input of the radio to create distortion. You can hook a scope to the output of the sound card and watch it for clipping of the sine wave as you adjust the gain (on the Windows PLAYBACK mixer). Turn the gain up until it you just begin to see clipping, or until the signal stops getting stronger, then reduce the gain until the voltage drops to one half of that value (that is, the trace is half as tall). If you don't have a scope, LISTEN to the sound card with headphones and make the same adjustment. What you're listening for is any harshness that appears when you turn it up, and when you hear it, reduce the gain until it sounds half as loud. Now you're ready to adjust the Line Input gain of the K3 according to the K3 manual. You missed the point - he's not using an external audio feed to the K3. I've never used Kcomm, but if it operates in PSK D mode, it must be sending commands, with text, to the K3, and the K3 does all of the modulation. 73, ~iain / N6ML __ 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 psk D splater
Maybe you ought to read Jim's post again. Sure looks like he's talking about the sound card out going into the radio 73, Ross N4RP On 5/30/2012 1:52 PM, Rick Bates wrote: And you missed that Jim was talking about the RECEIVE station overdriving the sound card for decoding. ;-) Both sides need to have the correct settings before making judgments. Rick wa6nhc -Original Message- From: iain macdonnell - N6ML On Wed, May 30, 2012 at 9:42 AM, Jim Brownj...@audiosystemsgroup.com wrote: On 5/30/2012 6:13 AM, dm...@nexicom.net wrote: Question, What can cause splatter when using PSK-D Splatter is simply distortion. Anything in the audio chain can cause splatter, from the computer to the audio section of the K3. Many (most?) computer sound cards will create distortion if turned up too high, and turning it up too high can also cause the input of the radio to create distortion. You can hook a scope to the output of the sound card and watch it for clipping of the sine wave as you adjust the gain (on the Windows PLAYBACK mixer). Turn the gain up until it you just begin to see clipping, or until the signal stops getting stronger, then reduce the gain until the voltage drops to one half of that value (that is, the trace is half as tall). If you don't have a scope, LISTEN to the sound card with headphones and make the same adjustment. What you're listening for is any harshness that appears when you turn it up, and when you hear it, reduce the gain until it sounds half as loud. Now you're ready to adjust the Line Input gain of the K3 according to the K3 manual. You missed the point - he's not using an external audio feed to the K3. I've never used Kcomm, but if it operates in PSK D mode, it must be sending commands, with text, to the K3, and the K3 does all of the modulation. 73, ~iain / N6ML __ 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 -- FCC Section 97.313(a) “At all times, an amateur station must use the minimum transmitter power necessary to carry out the desired communications.” __ 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 psk D splater
Hi Jim Thanksgood tips but Keep in mind I am using PSK-D where I am sending serial data to the K3 and letting it do the modulation. so there is no audio path from the PC into the K3. before I had the K3 using the sound card was my only option and even now when using AFSK to the K3 I dont believe I have an issue. It was just when I tried to let the K3 handle the modulation that I got this response and as others have pointed out it is very possible y that there is someting at his end. I was just wondering though if there was someting I can do to controll the IMD at the K3 when using PSK-D as opposed to PSK-A David Moes VE3DVY --- Original message --- Subject: Re: [Elecraft] K3 psk D splater From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Date: Wednesday, 30/05/2012 12:42 PM On 5/30/2012 6:13 AM, dm...@nexicom.net wrote: Question, What can cause splatter when using PSK-D Splatter is simply distortion. Anything in the audio chain can cause splatter, from the computer to the audio section of the K3. Many (most?) computer sound cards will create distortion if turned up too high, and turning it up too high can also cause the input of the radio to create distortion. You can hook a scope to the output of the sound card and watch it for clipping of the sine wave as you adjust the gain (on the Windows PLAYBACK mixer). Turn the gain up until it you just begin to see clipping, or until the signal stops getting stronger, then reduce the gain until the voltage drops to one half of that value (that is, the trace is half as tall). If you don't have a scope, LISTEN to the sound card with headphones and make the same adjustment. What you're listening for is any harshness that appears when you turn it up, and when you hear it, reduce the gain until it sounds half as loud. Now you're ready to adjust the Line Input gain of the K3 according to the K3 manual. 73, Jim Brown 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 __ 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 psk D splater
Just to add to my original question and this may come out when I test it using the other radioHow much power can you safely use with PSK-D. I don't like to use much power to start with but in rare occasion a little boost can help. just curios how much boost can I make. I will try the utility, Kcomm and keying with the paddles. but as you say there should be no difference. I wont get to it tonight but will try sometime in the next day or two. and report my findings. My only worry is can I attenuate enough to run the K3 to near full power and not swamp the Kenwood to much. probably a dummy load on both. David Moes VE3DVY On Wednesday 30/05/2012 at 1:49 pm, Rick Prather wrote: Right! He said he was going to set up an outside monitor to look at his signal. Perhaps when that's set up it would be interesting to compare the Kcomm generated text with just the K3 Utility. Don't know why it would make a difference but could be a starting place if it does. Rick K6LE On 5/30/2012, at 9:52 , iain macdonnell - N6ML a...@dseven.org wrote: You missed the point - he's not using an external audio feed to the K3. I've never used Kcomm, but if it operates in PSK D mode, it must be sending commands, with text, to the K3, and the K3 does all of the modulation. 73, ~iain / N6ML __ 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 psk D splater
I use PSK - D with Kcomm or K3 utility all the time for rtty . Can you tell me what your indicated K3 voltage is on K3 screen? What is the indicated voltage on 25w key (cw constant keyed) on K3 screen? Do you have a Coilcraft DLFC15 filter in your rs232 line? Adrian ... vk4tux -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dm...@nexicom.net Sent: Wednesday, 30 May 2012 11:13 PM To: elecraft@mailman.qth.net Subject: [Elecraft] K3 psk D splater Last evening I was trying another aspect of my K3I often work PSK using AFSK but I thought Id give it a try using PSK-D using Kcomm I set everyting and it was decoding fine on the K3 display and in Kcomm.There was a strong station that was calling CQ so i gave him a call while having a good QSO he mentioned that I was splattering a bit and I should not drive as hard. rather than explaining that I wasnt using AFSK I just quickly said thanks Ill look into it and 73. Question, What can cause splatter when using PSK-D I had the power dialed to 25W so I certainly wasn.t running to much power, and just to be sure that I was actually using PSK -d I had pulled the audio line in/out from the K3. Am I missing something? I will be trying again hooking my other rig up to another computer so that I can monitor my output in Fldigi, just in case he was seeing issues at his end. David Moes VE3DVY __ 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 psk D splater
Yes replace the pwr supply cable to a shorter heavier version used with a 15v stiff supply. 100w key tx K3 screen indicated volt drop should not exceed 0.4v .Supply cable needs to be short and thicker. Fit a Coilcraft DLFC15 filter in your rs232 line. Adrian ... vk4tux -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dm...@nexicom.net Sent: Thursday, 31 May 2012 5:18 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 psk D splater Hi Jim Thanksgood tips but Keep in mind I am using PSK-D where I am sending serial data to the K3 and letting it do the modulation. so there is no audio path from the PC into the K3. before I had the K3 using the sound card was my only option and even now when using AFSK to the K3 I dont believe I have an issue. It was just when I tried to let the K3 handle the modulation that I got this response and as others have pointed out it is very possible y that there is someting at his end. I was just wondering though if there was someting I can do to controll the IMD at the K3 when using PSK-D as opposed to PSK-A David Moes VE3DVY --- Original message --- Subject: Re: [Elecraft] K3 psk D splater From: Jim Brown j...@audiosystemsgroup.com To: elecraft@mailman.qth.net Date: Wednesday, 30/05/2012 12:42 PM On 5/30/2012 6:13 AM, dm...@nexicom.net wrote: Question, What can cause splatter when using PSK-D Splatter is simply distortion. Anything in the audio chain can cause splatter, from the computer to the audio section of the K3. Many (most?) computer sound cards will create distortion if turned up too high, and turning it up too high can also cause the input of the radio to create distortion. You can hook a scope to the output of the sound card and watch it for clipping of the sine wave as you adjust the gain (on the Windows PLAYBACK mixer). Turn the gain up until it you just begin to see clipping, or until the signal stops getting stronger, then reduce the gain until the voltage drops to one half of that value (that is, the trace is half as tall). If you don't have a scope, LISTEN to the sound card with headphones and make the same adjustment. What you're listening for is any harshness that appears when you turn it up, and when you hear it, reduce the gain until it sounds half as loud. Now you're ready to adjust the Line Input gain of the K3 according to the K3 manual. 73, Jim Brown 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 __ 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 psk D splater
100w, no problem and clean including driving a good amp. Sell the Kenwood and get another K3 that will handle it :) -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of dm...@nexicom.net Sent: Thursday, 31 May 2012 5:26 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 psk D splater Just to add to my original question and this may come out when I test it using the other radioHow much power can you safely use with PSK-D. I don't like to use much power to start with but in rare occasion a little boost can help. just curios how much boost can I make. I will try the utility, Kcomm and keying with the paddles. but as you say there should be no difference. I wont get to it tonight but will try sometime in the next day or two. and report my findings. My only worry is can I attenuate enough to run the K3 to near full power and not swamp the Kenwood to much. probably a dummy load on both. David Moes VE3DVY On Wednesday 30/05/2012 at 1:49 pm, Rick Prather wrote: Right! He said he was going to set up an outside monitor to look at his signal. Perhaps when that's set up it would be interesting to compare the Kcomm generated text with just the K3 Utility. Don't know why it would make a difference but could be a starting place if it does. Rick K6LE On 5/30/2012, at 9:52 , iain macdonnell - N6ML a...@dseven.org wrote: You missed the point - he's not using an external audio feed to the K3. I've never used Kcomm, but if it operates in PSK D mode, it must be sending commands, with text, to the K3, and the K3 does all of the modulation. 73, ~iain / N6ML __ 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 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] K3 psk D splater
Why does the receive station have a soundcard? He/She does not have to have one. I dont use one to receive on rtty and send on fsk-D. I can see dirty signals on the P3 waterfall, I dont need a PC, HRD or any other PC program nor soundcard. It has nothing to do with audio lines or feeds as there are none. The action is as a ky shift keyer and power is the only adjustment. Obviously many here have no idea what FSK-D is or how it works. -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Rick Bates Sent: Thursday, 31 May 2012 3:53 AM To: 'iain macdonnell - N6ML'; j...@audiosystemsgroup.com Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 psk D splater And you missed that Jim was talking about the RECEIVE station overdriving the sound card for decoding. ;-) Both sides need to have the correct settings before making judgments. Rick wa6nhc -Original Message- From: iain macdonnell - N6ML On Wed, May 30, 2012 at 9:42 AM, Jim Brown j...@audiosystemsgroup.com wrote: On 5/30/2012 6:13 AM, dm...@nexicom.net wrote: Question, What can cause splatter when using PSK-D Splatter is simply distortion. Anything in the audio chain can cause splatter, from the computer to the audio section of the K3. Many (most?) computer sound cards will create distortion if turned up too high, and turning it up too high can also cause the input of the radio to create distortion. You can hook a scope to the output of the sound card and watch it for clipping of the sine wave as you adjust the gain (on the Windows PLAYBACK mixer). Turn the gain up until it you just begin to see clipping, or until the signal stops getting stronger, then reduce the gain until the voltage drops to one half of that value (that is, the trace is half as tall). If you don't have a scope, LISTEN to the sound card with headphones and make the same adjustment. What you're listening for is any harshness that appears when you turn it up, and when you hear it, reduce the gain until it sounds half as loud. Now you're ready to adjust the Line Input gain of the K3 according to the K3 manual. You missed the point - he's not using an external audio feed to the K3. I've never used Kcomm, but if it operates in PSK D mode, it must be sending commands, with text, to the K3, and the K3 does all of the modulation. 73, ~iain / N6ML __ 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 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 psk D splater
On 5/30/2012 10:52 AM, Rick Bates wrote: And you missed that Jim was talking about the RECEIVE station overdriving the sound card for decoding.;-) No, Iain read my response correctly, but I didn't get the question. I answered the wrong question -- was talking about the computer sound card generating the digital signal. 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
Re: [Elecraft] K3 psk D splater
I'm sorry, David, but am confused about what you are doing. You state that I often work PSK using AFSK How do you do this? Are you running RTTY with AFSK or FSK D? Or, maybe PSK 31 using PSK D or soundcard DATA A? My K3 has 4 data modes. FSK (Hardware shifted freq for RTTY) or AFSK which uses a sound card. The other two are PSK D which is created entirely within the K3 or it's sound card version DATA A. Both of the D or direct modes can be used with paddles on the K3 to send and receive while decoding is done in the K3. They can also be used with the K3 Utility and some other software that sends text over the serial cable, I believe. Please explain ...bill nr4c Subject: [Elecraft] K3 psk D splater Last evening I was trying another aspect of my K3I often work PSK using AFSK but I thought Id give it a try using PSK-D using Kcomm __ 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 psk D splater
Power is fine at the rig drops to 13.4V at 25W key down and 12.6V at 100W no I do not have a filter on the serial port but RF in the shack is low and I've never had any other issues with serial during transmit. and while sending it had no issues with the text.he was just commenting on many bars on the PSK signal. On 5/30/2012 3:44 PM, Adrian wrote: I use PSK - D with Kcomm or K3 utility all the time for rtty . Can you tell me what your indicated K3 voltage is on K3 screen? What is the indicated voltage on 25w key (cw constant keyed) on K3 screen? Do you have a Coilcraft DLFC15 filter in your rs232 line? __ 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 psk D splater
On 5/30/2012 4:40 PM, Adrian wrote: Why does the receive station have a soundcard? He/She does not have to have one. Only some of us are lucky enough to have a K3 that can decode PSK31 on its own. the vast majority have to use a computer and sound card as their only choice. I don’t use one to receive on rtty and send on fsk-D. I can see dirty signals on the P3 waterfall, I don’t need a PC, HRD or any other PC program nor soundcard. Can you receive Olivia, MFSK, or any other modes without a sound card? how about SSTV or DRM? I do them all. It has nothing to do with audio lines or feeds as there are none. The action is as a ky shift keyer and power is the only adjustment. Obviously many here have no idea what FSK-D is or how it works. Most people use AFSK and PSK-A I have for years only very few rigs can do PSK31 without a computer, so sorry for my ignorance on the topic of PSK-D but one has to start somewhere. Ive only had a K3 for a month and don't have a p3 __ 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 psk D splater
Im wondering two things: - How much power output was the K3 in question operating PSK at? PSK is really picky about transmit IMD. IMD increases with power output from any rig, K3 being no exeption. - Did the station that complained about splatter have his noise blanker and/or preamp turned on? If so, the problem might be on the receive end of the path. Both issues beg to be investigated. And yes, with direct PSK-D modulation, the soundcard output from the K3 is moot, however, the soundcard input to the complaining station is not moot, in fact, it is critical, as pointed out by K9YC. Levels are -lu-w4lt- K3#3192 Message: 12 Date: Wed, 30 May 2012 15:17:30 -0400 From: dm...@nexicom.net Subject: Re: [Elecraft] K3 psk D splater To: elecraft@mailman.qth.net Message-ID: 4fc6724a.5350.42e76940.27dc6...@nexicom.net Content-Type: text/plain; charset=us-ascii; format=flowed Hi Jim Thanksgood tips but Keep in mind I am using PSK-D where I am sending serial data to the K3 and letting it do the modulation. so there is no audio path from the PC into the K3. before I had the K3 using the sound card was my only option and even now when using AFSK to the K3 I dont believe I have an issue. It was just when I tried to let the K3 handle the modulation that I got this response and as others have pointed out it is very possible y that there is someting at his end. I was just wondering though if there was someting I can do to controll the IMD at the K3 when using PSK-D as opposed to PSK-A David Moes VE3DVY __ 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 psk D splater
I take it your running a typical 13.8v supply. Running a stiff 15v supply cleans up the K3 TX IM3 dramatically. The filter also keeps the key signals clean into the K3. You say the guy was talking bars on the psk signal. I guess he may not know what he is talking about. Next time you get a bad report, ask them to email a screenshot of your signal or report how wide it is. PSK-D is usually exceptionally clean, and the fix items I mentioned will ensure it stays that way. Loud (bars) does not mean wide. Why do you take notice of idiots like that with stupid non-sense reports. If you turn down your power he has less bars and now your signal is clean. Is that how this guy relates? You assumed he was right regarding your signal, because you asked here regarding answers, and it appears you are not interested in improving your TX IM3 dismissing the proven fixes. -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-psk-D-splater-tp7556767p7556811.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
Re: [Elecraft] K3 psk D splater
We are taliking PSK-D nothing else, lets stay on topic. This thread refers to you being reported as bas IM3 whilst transmitting FSK-D. My comments regarding ; Why does the receive station have a soundcard? He/She does not have to have one was in regard to another posters comment, why did you think this was directed at you? Can you receive Olivia, MFSK, or any other modes without a sound card? how about SSTV or DRM? I do them all Do you do them all in PSK-D? if not then you are not relevant with that comment. Most people use AFSK and PSK-A. Again that's off topic. I would start a new thread if you want to talk afsk etc. Our concern here is why would a K3 put out a dirty PSK-D signal, Thats what I commented on. Adrian ... vk4tux -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-psk-D-splater-tp7556767p7556814.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
Re: [Elecraft] K3 psk D splater
David, I don't know what the max power would be before the internally generated PSK would produce too much IMD but I never use more than 50W. I thought you mentioned in your original post that you were running 25W and that would be fine. I have to wonder just how reliable is the receiving station. It could be you have a very strong signal at his place or, as someone else mentioned, he might have been running an agressive NB or similar. You may have trouble monitoring your signal locally so what I would do is get back on, make another QSO and see what the new partner has to say. I would be happy to sked with you if you think that would make the test easier. Send me an email off list if you would like to do that. GL and 73, Rick k...@mac.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] K3 PSK-D Split Operation
The only way to split on PSK-31 is to use XIT. Just go up the necessary amount and transmit. Works fine. 73 Bill, K4CIA __ 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 PSK-D Split Operation
*Bill, By all means educate me please. Why would split be used on a narrow bandwidth signal such as PSK31? Would you not be just consuming twice the amount of bandwidth as needed? I have casually operated PSK31 and I have not seen the band so crowded that operating split would be needed. Curious Gary * On 6 January 2012 19:26, Bill McDowell k4...@earthlink.net wrote: The only way to split on PSK-31 is to use XIT. Just go up the necessary amount and transmit. Works fine. 73 Bill, K4CIA __ 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 -- Gary VK4FD - Motorhome Mobile Elecraft Equipment K3 #679, KPA-500 #018 Living the dream!!! __ 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 PSK-D Split Operation
Split operation is dictated by the desires of the DX station. If he is quite rare, as in the case of VK0TH on Macquarie, he cannot hear the multitude of stations calling simplex and those calling simplex cannot hear his reply. So split is necessary to complete the contact. Exactly like cw, ssb or rtty. My observations on this subject are based on using the native PSK capability in the K3, and not from some other software package. Split operation may be available from them as Don suggested. Bill, K4CIA *Bill, By all means educate me please. Why would split be used on a narrow bandwidth signal such as PSK31? __ 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 PSK-D Split Operation
On Fri, Jan 6, 2012 at 3:32 AM, Gary Gregory garyvk...@gmail.com wrote: Why would split be used on a narrow bandwidth signal such as PSK31?... Same reason it's used on a narrow bandwidth signal such as CW: to spread the pileup. And BTW, although the DX that Bud was asking about was listening up only 400 hz, the guys in the Solomon Is and the guy on Trinidade/Martim Vaz were listening up 2 - 5 khz. The simplest way to get the K3 to do that split is by using USB instead of Data mode. Tony KT0NY __ 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 PSK-D Split Operation
The original question was about PSK D but the answers didn't address that question. Assuming that Bud was really wanting to use PSK D with text decode on the K3 and direct CW to DATA then the K3 does indeed indicate SPL N/A. In that case XIT does offer a method by which to go split. If instead he was wishing to use a PC based PSK terminal then the correct mode would be DATA A. This does in fact allow split as does AFSK A and FSK D. This is all easily checked by switching DATA MD settings on the K3. If Bud has chosen PSK D in error wishing to use a PC based PSK terminal then the simple answer is to select data mode DATA A. This also has the advantage of flattening the EQ settings unlike USB which can have a very tailored EQ set-up to suit a voice/mic combo. When in PSK D mode, audio is still passed to the PC and signals are visible on the waterfall, this could possibly lead to confusion. Regards, Mike VP8NO __ 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] K3 PSK-D Split Operation
Bud, I pursued this issue about a month ago and I called Elecraft. They acknowledged PSK D will not operate split. I was told to find a digital software program! It could be fixed but they were not interested was the impression I got. For me I like to use RTTY and PSK D in standalone mode (without a digital program running) usually chasing DX in pileups. I have a couple of messages in memory and it works FB for my needs. My issue was that RTTY will split in standalone mode but PSK D will not. Why? Why not be consistent? It seemed like a reasonable request to have Split operate the same for all K3 digital standalone modes. I was wrong. Fiddling around with RIT XIT works but it's not as convenient as Split. When DX says listening up, you xmit UP to play the game. 73, Ralph K1ZZI Date: Thu, 05 Jan 2012 18:28:25 -0500 From: Bud Governale, W3LL w...@arrl.net Subject: [Elecraft] To: elecraft@mailman.qth.net When in Data Mode PSK-D (31 bps) I get SPL N/A when trying to operate split. Both VFO's were on the same frequency but could not get VFO B to go up. What do I need to do to go into split operation in this mode? Today VK0TH was operating on 28,121 MHz and listening 400 Hz up. I just could not get into split mode. 73, Bud W3LL w...@arrl.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
[Elecraft] K3 PSK-D Split Operation
When in Data Mode PSK-D (31 bps) I get SPL N/A when trying to operate split. Both VFO's were on the same frequency but could not get VFO B to go up. What do I need to do to go into split operation in this mode? Today VK0TH was operating on 28,121 MHz and listening 400 Hz up. I just could not get into split mode. 73, Bud W3LL w...@arrl.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
Re: [Elecraft] K3 PSK-D Split Operation
Hi Bud, I suspect that VFO-B is in a different mode. (You can view VFO-B information mode by pressing BSET). To quickly solve this problem I just pressed the A-B (#3) button twice. The first push sends transfers VFO-A frequency to VFO-B and the second push transfers other information such as mode and maybe filter width. (See manual page 15). 73, Mike K2MK Bud Governale, W3LL wrote When in Data Mode PSK-D (31 bps) I get SPL N/A when trying to operate split. Both VFO's were on the same frequency but could not get VFO B to go up. What do I need to do to go into split operation in this mode? Today VK0TH was operating on 28,121 MHz and listening 400 Hz up. I just could not get into split mode. 73, Bud W3LL w3ll@ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@.qth This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html -- View this message in context: http://elecraft.365791.n2.nabble.com/K3-PSK-D-Split-Operation-tp7156597p7156784.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
Re: [Elecraft] K3 PSK-D Split Operation
Bud, Most PSK31 waterfall software allows you to set the transmit frequency different from the receive frequency on the waterfall display. Yes, the K3 does not allow split in Data A submode - use your software application. 73, Don W3FPR On 1/5/2012 6:28 PM, Bud Governale, W3LL wrote: When in Data Mode PSK-D (31 bps) I get SPL N/A when trying to operate split. Both VFO's were on the same frequency but could not get VFO B to go up. What do I need to do to go into split operation in this mode? Today VK0TH was operating on 28,121 MHz and listening 400 Hz up. I just could not get into split mode. 73, Bud W3LL w...@arrl.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 __ 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 - PSK D Split Problem?
Hi John, I use the same setup, but have had some issues with rig control of the K3 by Fldigi. What rig control software module do you use in Fldigi? Tnx es 73, Oliver Johns W6ODJ On Dec 6, 2011, at 10:03 AM, John Ragle wrote: This is a show-stopper of a question. I have been running PSK for a number of years, and have never observed anyone running split. With an exceedingly narrow-band mode such as PSK31, it should not be necessary, although occasionally someone will drop down right on top of your offset, either because he can't hear either side of the QSO or because he is being careless. QRM happens. Occasionally one sees people operating with multiple sidebands (an overdrive problem), and occasionally there will be the usual AGC pumping by very strong stations, but normally even at hyperactive times, the 4 kHz or so that PSK operators self-allocate is plenty to accomodate everyone. Sometimes (as in contests, hint hint) RTTY and/or CW operators ride roughshod over PSK. I would actually recommend using a separate program (I prefer FLDIGI) for digital methods, as the degree of oversight of the local part of the spectrum is better (unless you are operating with a P3). After a fair amount of floundering around, I have settled on FLDIGI driving a SignaLink USB box into my K3/P3 rig, but this is perhaps a matter of personal preference. I have used this on a K2, a Flex 3000, and the present K3/P3. FLDIGI runs on a very wide variety of platforms (WIN XP, WIN 7, MAC, Linux, etc), and is a very friendly, uncluttered control program. I use it a lot for RTTY as well as PSK31, PSK63 and other digital modes. If FLDIGI is too fancy, then either DigiPan or Airlink Express work well and require much less computer power. DigiPan works just fine on my netbook. There is other software, but much of it is badly overgrown and represents very poor programming practice IMNSHO. John Ragle -- W1ZI = On 12/6/2011 12:22 PM, Ralph K1ZZI wrote: Using PSK D today for the first time ever, I was not able to get split to work. After setting both VFO's to PSK, then pushing split resulted in SPL N/A message? CW, SSB and RTTY always work perfect so I'm wondering what I'm doing wrong with PSK? Is split invalid for PSK? Thanks. Ralph K1ZZI __ 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 -- Sent from my lovely old Dell XPS 420 __ 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] K3 - PSK D Split Problem?
Using PSK D today for the first time ever, I was not able to get split to work. After setting both VFO's to PSK, then pushing split resulted in SPL N/A message? CW, SSB and RTTY always work perfect so I'm wondering what I'm doing wrong with PSK? Is split invalid for PSK? Thanks. Ralph K1ZZI __ 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 - PSK D Split Problem?
This is a show-stopper of a question. I have been running PSK for a number of years, and have never observed anyone running split. With an exceedingly narrow-band mode such as PSK31, it should not be necessary, although occasionally someone will drop down right on top of your offset, either because he can't hear either side of the QSO or because he is being careless. QRM happens. Occasionally one sees people operating with multiple sidebands (an overdrive problem), and occasionally there will be the usual AGC pumping by very strong stations, but normally even at hyperactive times, the 4 kHz or so that PSK operators self-allocate is plenty to accomodate everyone. Sometimes (as in contests, hint hint) RTTY and/or CW operators ride roughshod over PSK. I would actually recommend using a separate program (I prefer FLDIGI) for digital methods, as the degree of oversight of the local part of the spectrum is better (unless you are operating with a P3). After a fair amount of floundering around, I have settled on FLDIGI driving a SignaLink USB box into my K3/P3 rig, but this is perhaps a matter of personal preference. I have used this on a K2, a Flex 3000, and the present K3/P3. FLDIGI runs on a very wide variety of platforms (WIN XP, WIN 7, MAC, Linux, etc), and is a very friendly, uncluttered control program. I use it a lot for RTTY as well as PSK31, PSK63 and other digital modes. If FLDIGI is too fancy, then either DigiPan or Airlink Express work well and require much less computer power. DigiPan works just fine on my netbook. There is other software, but much of it is badly overgrown and represents very poor programming practice IMNSHO. John Ragle -- W1ZI = On 12/6/2011 12:22 PM, Ralph K1ZZI wrote: Using PSK D today for the first time ever, I was not able to get split to work. After setting both VFO's to PSK, then pushing split resulted in SPL N/A message? CW, SSB and RTTY always work perfect so I'm wondering what I'm doing wrong with PSK? Is split invalid for PSK? Thanks. Ralph K1ZZI __ 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 -- Sent from my lovely old Dell XPS 420 __ 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 - PSK D Split Problem?
On Tue, Dec 6, 2011 at 12:03 PM, John Ragle tpcj1...@crocker.com wrote: ...I have been running PSK for a number of years, and have never observed anyone running split... === It can happen. There was an H40 who operated split PSK earlier this year. I didn't work him, but I did work PP0T, Trinidade Martim Vaz, on PSK with a 2 khz split -- the one and only time I've ever heard a signal from that country in 53 years. It's easy to work split with PSK if you use AFSK. 73, Tony KT0NY -- http://www.isb.edu/faculty/facultydir.aspx?ddlFaculty=352 __ 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 - PSK D Split Problem?
I agree it is not difficult. I outlined a couple of QD ways of doing this for K1ZZI. John Ragle -- W1ZI = On 12/6/2011 3:03 PM, Tony Estep wrote: It's easy to work split with PSK if you use AFSK. 73, Tony KT0NY __ 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] K3 PSK-D sidetone pitch - adjustable?
Hi all, Is the sidetone/offset setting for the PSK-D mode adjustable? I noticed that it is for the other data modes, but in PSK D it seems to be frozen at 1010 hz. No, I'm not demanding Wayne/Eric change this if it's by design ;). Just curious... If I could send CW worth a flip, I'd use this all the time for PSK-31, by the way. There's no waterfall but this built-in decoder works really well - I even made a couple RTTY contacts during the contest this weekend with FSK-D and some boilerplate macros recorded in a couple of the memories hi hi. But after practicing my sending with the paddles all weekend I'm becoming desperate and am likely going to switch my whole operation to cocoaModem soon as I get my hands on an iMic. I'll also be using J2A for CW too with it. So no big deal, just wondering about this? Tnx es 73, LS W5QD (stuck at about 20wpm + mistakes galore sending w/paddles) -- View this message in context: http://n2.nabble.com/K3-PSK-D-sidetone-pitch-adjustable-tp4853409p4853409.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
[Elecraft] K3 PSK D - What Frequency am I Transmitting on?
Apologies if this is a silly question, but I've been unable to find the answer. In the K3's PSK D mode, i.e. direct transmit mode, is the TX RX frequency the indicated VFO frequency, or the VFO frequency plus / minus the pitch setting? It makes a 1010Hz difference! Thanks in advance 73, Ian G4FSU __ 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 PSK D - What Frequency am I Transmitting on?
In the K3's PSK D mode, i.e. direct transmit mode, is the TX RX frequency the indicated VFO frequency, or the VFO frequency plus / minus the pitch setting? The Tx carrier is frequency is displayed in VFO A. This is also the Rx frequency that corresponds to the decoder's pitch. 73, Lyle KK7P __ 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] [K3] PSK D Center frequency
I just put my K3 into PSK D mode and adjusted the shift of the filter and it shows the center frequency as * FC 1.01 . Not 1.00 but 1.01! Running f/w 2.38/1.90. - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/-K3--PSK-D-Center-frequency-tp1333997p1333997.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] PSK D Center frequency
Hi Julian I don't use the mode myself so hadn't noticed, but I've just tried it and it's the same with 2.46/1.92. 73 Stephen G4SJP On 14/10/2008 20:49, Julian, G4ILO [EMAIL PROTECTED] wrote: I just put my K3 into PSK D mode and adjusted the shift of the filter and it shows the center frequency as * FC 1.01 . Not 1.00 but 1.01! Running f/w 2.38/1.90. - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 ___ 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] PSK D Center frequency
That's correct. It was done intentionally. - 73, Greg - AB7R Whidbey Island WA NA-065 On Tue Oct 14 12:49 , Julian, G4ILO sent: I just put my K3 into PSK D mode and adjusted the shift of the filter and it shows the center frequency as * FC 1.01 . Not 1.00 but 1.01! Running f/w 2.38/1.90. - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/-K3--PSK-D-Center-frequency- tp1333997p1333997.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 ___ 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] K3: PSK D ASCII mode
The owners manual (Rev D1) that came with my SN1774 K3 says, on page 31, that ...PSK D lets you transmit via FSK IN, ASCII, or the keyer paddle. I take this to mean I don't really need a transmit audio connection from the computer my PSK31 software runs on to the K3. Apparently the transmit data would travel over the same RS232 interface I've implemented for my contesting software and the K3 would create the PSK warble internally. Very cool, BUT, everything I read in the reflector archives talks about audio, not ASCII, interfaces for transmit on data modes. Is this ASCII feature implemented in the K3? Do the PSK programs now have such an option implemented? My hands-on PSK experience is dated and with Digipan only. Thanks es 73, Barry, K6RM ___ 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: PSK D ASCII mode
Barry Pfeil wrote: The owners manual (Rev D1) that came with my SN1774 K3 says, on page 31, that ...PSK D lets you transmit via FSK IN, ASCII, or the keyer paddle. I take this to mean I don't really need a transmit audio connection from the computer my PSK31 software runs on to the K3. Apparently the transmit data would travel over the same RS232 interface I've implemented for my contesting software and the K3 would create the PSK warble internally. Very cool, BUT, everything I read in the reflector archives talks about audio, not ASCII, interfaces for transmit on data modes. Is this ASCII feature implemented in the K3? Do the PSK programs now have such an option implemented? My hands-on PSK experience is dated and with Digipan only. The K3 utility that you use to update firmware has a sample implementation under the Terminal tab. I've not heard of any real software adding support yet, but the potential is definitely there... ~Iain ___ 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: PSK D ASCII mode
Iain MacDonnell - K6IAM wrote: The K3 utility that you use to update firmware has a sample implementation under the Terminal tab. I've not heard of any real software adding support yet, but the potential is definitely there... My Elecraft logging program KComm supports the KY command used to send data via ASCII to the K3 and could be used in PSK D and RTTY D modes but there are some shortcomings in the K3 implementation so I haven't really tested it as I don't consider it usable for any serious purpose. There is no way for the computer to send the equivalent of the IM prosign you can send on the key to terminate the transmission, so you have to wait for it to time out. There is no support for newline characters and everythging is sent in lower case so the output looks odd in PSK31. And there is no way to get the received data back into the logging program so you have to watch the scrolling 7 character display on the K3 - if you miss it you've lost it. - Julian, G4ILO. K2 #392 K3 #222. http://www.g4ilo.com/ G4ILO's Shack http://www.ham-directory.com/ Ham Directoryhttp://www.g4ilo.com/kcomm.html KComm for Elecraft K2 and K3 -- View this message in context: http://n2.nabble.com/K3%3A-PSK-D-ASCII-mode-tp1317689p1317857.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
[Elecraft] K3 PSK D
When in FSK D mode, MMTTY will key thru Ext FSK dll the serial port data/control lines to FSK the K3. Is there any PSK-31 program that will also key the serial port control lines to operate the K3 in PSK D mode? The usual ones Digipan et.al. help files do not mention this, only the sound card audio. I've seen the thread on the cw keys/keyboard etc to cw-psk. Thanks R. Linder wb7ond -- View this message in context: http://www.nabble.com/K3-PSK-D-tp18153773p18153773.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 PSK D
wb7ond wrote: When in FSK D mode, MMTTY will key thru Ext FSK dll the serial port data/control lines to FSK the K3. Is there any PSK-31 program that will also key the serial port control lines to operate the K3 in PSK D mode? The usual ones Digipan et.al. help files do not mention this, only the sound card audio. I've seen the thread on the cw keys/keyboard etc to cw-psk. I'm pretty confident that I'm correct in saying no, because I think the K3 is the only radio that supports this. Unlike RTTY, which as been around long before sound cards were invented, PSK31 was designed as a sound card mode. So there is not even any legacy software that can do this. Since this would require a second serial port I doubt if such an option would be popular, especially as there is doubt in my mind as to whether the USB serial ports most people would want to use are capable of working at the nonstandard baud rates such modes would require. Under Windows you would probably have to fight with the system to get access to the serial ports and set these nonstandard UART parameters, making the task much more difficult than it was in 1986 when I wrote my own MS-DOS RTTY terminal program. My new K2/K3 logging program KComm can use the same KY software commands to generate RTTY and PSK31 when the K3 is in FSK D and PSK D modes. But there are a number of issues that need to be addressed in the firmware before this becomes usable on-air, to whit: - KY currently only supports the CW alphabet so you can't send newlines or backspaces (nor a lot of other characters that are valid in PSK31), and in PSK31 everything is sent in lower case. - There is no way to abort the transmission of text that has already been sent to the radio (as there isn't in CW if you have selected the option to send @ as a prosign instead of using it as an abort character.) - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com KComm for K2/K3: www.g4ilo.com/kcomm.html -- View this message in context: http://www.nabble.com/K3-PSK-D-tp18153773p18154526.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 PSK D
Thanks Julian I can also see by http://aintel.bi.ehu.es/psk31theory.html that this PSK-31 waveform is a bit more complicated at keying than simple fsk on/off digital 1's and 0's. You mentioned an interesting aspect of the serial converter that is confusing for me: whether the USB serial ports most people would want to use are capable of working at the nonstandard baud rates such modes would require. Under Windows you would probably have to fight with the system to get access to the serial ports and set these nonstandard UART parameters, making the task much more difficult than it was in 1986 when I wrote my own MS-DOS RTTY terminal program. I purchased an old Belkin usb-serial converter that was recommended as being capable of running at 45.5 baud from the RTTY info web page. http://www.aa5au.com/gettingstarted/rtty_start8.htm Then I discovered that I did not have to use the Tx Data (which I believe is controlled thru the USART), I could have keyed the DTR or RTS control line at 45.5 baud thru the EXT FSK dll. Would not the baud rate of that control pin be controlled by the MMTTY/Ext FSK software, independant of USART standard buad rates? When I used a run of the mill usb-serial converter in the DTR or DTS, it seemed as though it keyed just fine, i.e. I heard the diddle and fsk in the K3 monitor. I am using Xp on a Vostro laptop. I use a serial adapter to tune the K3, and a second adapter to FSK thru an opto isolator. I suspect that all the Mixw type keyers have somehow solved that problem.. I continued this post because I figured it may be of interest to other FSK Rtty folks. Thanks again. Dick WB7OND -- View this message in context: http://www.nabble.com/K3-PSK-D-tp18153773p18159902.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 PSK D
wb7ond wrote: Thanks Julian I can also see by http://aintel.bi.ehu.es/psk31theory.html that this PSK-31 waveform is a bit more complicated at keying than simple fsk on/off digital 1's and 0's. You mentioned an interesting aspect of the serial converter that is confusing for me: whether the USB serial ports most people would want to use are capable of working at the nonstandard baud rates such modes would require. Under Windows you would probably have to fight with the system to get access to the serial ports and set these nonstandard UART parameters, making the task much more difficult than it was in 1986 when I wrote my own MS-DOS RTTY terminal program. I purchased an old Belkin usb-serial converter that was recommended as being capable of running at 45.5 baud from the RTTY info web page. http://www.aa5au.com/gettingstarted/rtty_start8.htm Then I discovered that I did not have to use the Tx Data (which I believe is controlled thru the USART), I could have keyed the DTR or RTS control line at 45.5 baud thru the EXT FSK dll. Would not the baud rate of that control pin be controlled by the MMTTY/Ext FSK software, independant of USART standard buad rates? When I used a run of the mill usb-serial converter in the DTR or DTS, it seemed as though it keyed just fine, i.e. I heard the diddle and fsk in the K3 monitor. I am using Xp on a Vostro laptop. I use a serial adapter to tune the K3, and a second adapter to FSK thru an opto isolator. I suspect that all the Mixw type keyers have somehow solved that problem.. I continued this post because I figured it may be of interest to other FSK Rtty folks. Yep, that is interesting. I had my doubts about the USB to serial converters because I haven't even managed to get one to work yet with normal serial communications. (Fortunately my shack PC has a real serial port and I'm not planning on replacing it with a laptop anytime soon.) I did wonder whether you could press one of the other unused lines into service to send the data, but assumed that it might be rather tricky getting the right timing. However, obviously someone clever has already done that. Still, I'm hoping that the KY command protocol will soon be fully functional, which will achieve the same result without any extra wires or DLLs. I'm particularly interested in being able to use it for PSK31, since my KK7UQ IMD meter tells me that my IMD is 2dB better using the internally generated modulation than it is using the soundcard. - Julian, G4ILO K3 s/n: 222 K2 s/n: 392 G4ILO's Shack: www.g4ilo.com KComm for K2/K3: www.g4ilo.com/kcomm.html -- View this message in context: http://www.nabble.com/K3-PSK-D-tp18153773p18165323.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
