Re: K3 & DM 780
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I have tried DATA-A, CW, USB, in other words I have tried them all.
I have tried different settings for mike input for rear line in and everything that everyone has suggested. It just does not work. I am sure it is something simple, but I cant find it. Don KD8NNU On Fri, Dec 31, 2010 at 5:21 PM, [hidden email] wrote: > Do you have the K3 set to DATA-A mode? > > James K2QI > ------Original Message------ > From: [hidden email] > Sender: [hidden email] > To: Elecraft Reflector > Subject: [Elecraft] K3 & DM 780 > Sent: Dec 31, 2010 16:27 > > I want to use DM 780 with my K3 to work either CW or one of the data > modes. > > I can get the DM 780 to decode signals, but if I try to TX, I am > unable to trigger the radio to do anything. > > I have both a USB to serial connection, plus the sound card from the > laptop connected. I have been reading the manual and a starter guide > someone sent me, but I am getting nowhere fast. I did try different > settings for the PPT--KEY under the config menu, and I did get a solid > tone out of the monitor speakers but no TX. > > If someone can point me to a resource on the intranet, I will glady do > some more reading. > > Thx Happy New Year > Don > KD8NNU > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > > > Sent via BlackBerry from T-Mobile Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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On Dec 31, 2010, at 2:27 PM, [hidden email] wrote: > I have tried different settings for mike input for rear line in and everything that everyone has suggested. If you have already turned on VOX in DATA-A mode and nothing works still, try measuring the sound card's audio with a multimeter. Something like an old Fluke 76 can easily read AC waveforms of 2 kHz. A scope would be much better, of course, or some sound card program that behaves like an audio scope. See if you can set the sound card output to put out around 250 mV to 350 mV RMS when the software is "transmitting." If you can, and you are using the rear panel Line Input, then set the Mic Gain to 6 and VOX gain to 022 for starters. If nothing measurable comes out of the sound card, your problem is on the computer end, not on the radio end. When cocoaModem users have birth pangs, I always ask them to first select the computer's built-in speakers and see if they can hear anything from the speakers when they "transmit." Then, switch over to the sound card that is connected to the radio. This removes the "operator shorted to ground" problem. 73 Chen, W7AY ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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VOX is not an option in DATA-A mode K3 says N/A in the menu.
Thx Don KD8NNU Sent from my Palm Pre on the Now Network from Sprint On Dec 31, 2010 5:46 PM, Kok Chen <[hidden email]> wrote: On Dec 31, 2010, at 2:27 PM, [hidden email] wrote: > I have tried different settings for mike input for rear line in and everything that everyone has suggested. If you have already turned on VOX in DATA-A mode and nothing works still, try measuring the sound card's audio with a multimeter. Something like an old Fluke 76 can easily read AC waveforms of 2 kHz. A scope would be much better, of course, or some sound card program that behaves like an audio scope. See if you can set the sound card output to put out around 250 mV to 350 mV RMS when the software is "transmitting." If you can, and you are using the rear panel Line Input, then set the Mic Gain to 6 and VOX gain to 022 for starters. If nothing measurable comes out of the sound card, your problem is on the computer end, not on the radio end. When cocoaModem users have birth pangs, I always ask them to first select the computer's built-in speakers and see if they can hear anything from the speakers when they "transmit." Then, switch over to the sound card that is connected to the radio. This removes the "operator shorted to ground" problem. 73 Chen, W7AY ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Don,
Are you pressing (holding) the correct side of the BAND button? If you hold the QSK side, the VFO B display shows N/A because QSK is not applicable for DATA A. If you press the left side of the switch, it toggles between VOX and PTT. 73, Don W3FPR On 12/31/2010 6:09 PM, don Swetzig wrote: > VOX is not an option in DATA-A mode K3 says N/A in the menu. > > Thx > Don > > KD8NNU > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by KD8NNU
On Dec 31, 2010, at 12/31 3:09 PM, don Swetzig wrote: > VOX is not an option in DATA-A mode K3 says N/A in the menu. VOX should be available in DATA A and AFSK A modes, but not in FSK D and PSK D data modes. Use the MODE button to switch to DATA mode and then hold down the DATA MD button ("AFX"). The VFO B display should show the actual data mode. Use the VFO B knob to select DATA A. Press AFX once to get out of the DATA MD selection. VOX should now work. 73 Chen, W7AY ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Don Wilhelm-4
Yes I am holding the correct side of the button. It works in SSB as a choice but not DATA
Don KD8NNU Sent from my Palm Pre on the Now Network from Sprint On Dec 31, 2010 6:14 PM, Don Wilhelm <[hidden email]> wrote: Don, Are you pressing (holding) the correct side of the BAND button? If you hold the QSK side, the VFO B display shows N/A because QSK is not applicable for DATA A. If you press the left side of the switch, it toggles between VOX and PTT. 73, Don W3FPR On 12/31/2010 6:09 PM, don Swetzig wrote: > VOX is not an option in DATA-A mode&nbsp;K3 says N/A in the menu. > > Thx > Don > > KD8NNU > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Don,
In that case, I suspect you are in PSK D data mode - that data mode return N/A for VOX/PTT. Hold the AFX button and see what mode is indicated - rotate the VFO B knob until the VFO B display shows DATA A, then tap the AFX button to exit the data menu. You should then be able to toggle between VOX and PTT. 73, Don W3FPR On 12/31/2010 6:39 PM, don Swetzig wrote: > Yes I am holding the correct side of the button. It works in SSB as a choice but not DATA > > Don > > KD8NNU > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Kok Chen
On 12/31/2010 2:46 PM, Kok Chen wrote:
> If you have already turned on VOX in DATA-A mode and nothing works still, try measuring the sound card's audio with a multimeter. Something like an old Fluke 76 can easily read AC waveforms of 2 kHz. Or just pull the plug and LISTEN to the sound card output on a speaker or headphones when you put DM780 in TX mode. You ought to be able to hear it fairly well in typical laptop speakers or headphones. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Turned out the wrong sound device was selected for transmit in DM780.
73 Greg On Fri, Dec 31, 2010 at 5:42 PM, Jim Brown <[hidden email]>wrote: > On 12/31/2010 2:46 PM, Kok Chen wrote: > > If you have already turned on VOX in DATA-A mode and nothing works still, > try measuring the sound card's audio with a multimeter. Something like an > old Fluke 76 can easily read AC waveforms of 2 kHz. > > Or just pull the plug and LISTEN to the sound card output on a speaker > or headphones when you put DM780 in TX mode. You ought to be able to > hear it fairly well in typical laptop speakers or headphones. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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