John Bohnert wrote > > I recently downloaded JT656HF by W6CQZ and have on several occasions > monitored 14.076 MHZ with my K3/Signalink USB using this software. I am > still in the process of trying to set up the software and gaining an > understanding of how to use it. I experience the following: 1) If I set > my K3 in data mode A, no decoding of JT65 signals occurs during the 12 > second decoding period, but 2) if I set my K3 in the USB mode, decoding of > the JT65 signals does occur in the 12 second decoding period. I have not > tried any transmissions. I would appreciate any advice/solutions so that > I can use data mode A with JT65HF. > > I use the K3, Signalink USB and FLDIGI on a regular basis for PSK31 with > data mode A and have not had any problems. > > N9KW > John >
Hello John, First of all I would highly recommend you try asking JT65-hf related questions on the [email protected] list. Their list is totally dedicated to helping folks with the JT65-hf software. You can join it here: https://groups.google.com/forum/?hl=en&fromgroups#!forum/jt65-hf That said, I run my K3 with a SignaLink USB and JT65-hf on Windows 7 I also bought the SignaLink cable for the K3, so I can use the rear jacks. I'll address your "12 second" comment first, then give you a few pointers after that. I'm assuming when you say "12 second" you are referring to the, 48-60 second, section of a minute. There should be 'NO' signals during that time. If there are, your computers time sync with NTP is wrong. Anything above 2-3 seconds off 'nothing' decodes 'any' time during the entire 60 seconds. The only time you should see any signals in the waterfall is between 0-48 seconds, then there is a 12 second quiet time. (good opportunity for setting the volume levels in JT65-hf so they read 0 in receive) (top left in the JT65-hf window, where it says Audio Input Levels) Time syncing you computer is 90% of the problem with bad/no decodes To much receive signal strength is the other 10% (above 4 or 5 it goes into the red to show rx is to hot) Meinberg is good for setting your clock http://www.meinberg.de/english/sw/ note: the internal Windows time sync is NOT accurate enough for this task! === Settings for JT65-hf operations with the K3 and SignaLink USB. K3 in DATA mode A, (which for the K3 defaults to USB) Data A also sets the K3 so there is no compression during transmit. If you use straight USB mode there may/will be distortion on your signals. While in DATA A, set the MIC knob (lineout level) to Line 10-20 if this needs to be any higher, you can jumper JP3 in the SignaLink. "JP3 – This jumper can be installed to increase the SignaLink USB’s Transmit Audio Signal." In Receive, under MAIN CONFIG menu, the LIN OUT is set to [nor 010] If the volume is to low you may need to jumper JP2 in the SignaLink. "JP2 – This jumper can be installed to increase the Receive Audio signal going into the SignaLink USB’s built-in sound card." the above settings interact with TX & RX controls on the SignaLink Set the K3 as above, then use the TX & RX knobs to tweak the levels needed for JT65-hf to work. For TX I set the K3's PWR where I want (say 5w) MIC knob (lineout level) is set to Line 10-20 then turn the SignaLink TX up til I get the K3's ALC to the 5th bar For RX I set the K3 MAIN CONFIG menu the LIN OUT is set to [nor 010] then the turn the RX on the SignaLink USB up so the reading for the JT65-hf 'Audio Input Levels' shows L 0 This is set with no signals being received, like during the time between 48-60 seconds. In JT65-hf rig control, I use DXLabs Commander. I set the width of the K3's filter to 2.0khz and if you have a P3 set it's span to 3khz In Windows 7 under the 'recording devices' for the SignaLink USB properties are set to: Listen to this device NOT checked Power Management set to 'Continue running under battery power' Microphone level '37' 1 channel, 16 bit, 44100 HZ (CD Quality) Exclusive Mode 'both' boxes are checked ** side note, I was just trying RMS Express for WinMor and after 3 days figured out the SignaLink USB's DLY MUST be set down to off. So it could possibly be the cause of some problems, on some other modes ** I have found you can use much less power in TX than you might think. I have only short verticals (7-9' tall) on 10-20m I may have to run as high as 20w to get to Russia or S. Africa from Texas. But otherwise I make most contacts with 1-5w. Using a 7' tall vertical on 160m and 20w (1.2w ERP) I made a QSO with California receiving a -14 report. GENERAL Be sure to check out the following url's: for 'band of the day' info: http://www.powerlinenoise.com/n0rq/JT65-HF/ for a look at signal reports worldwide: http://jt65.w6cqz.org/receptions.php when you get to transmitting be sure to look at the: "Want to see only your reports? Click here for a filtered listing" link http://jt65.w6cqz.org/freceptions.html this site will tell you how much power you are using and how low uou can go: http://dwestbrook.net/projects/ham/dBCalc/?my_power=5&my_report=-01 shows Spotted stations, you can use settings to show many things LOTW and eQSL stations, Bands, different modes, etc http://hamspots.net/wsjt/ and of course the pskreporter.info site > http://pskreporter.info/pskmap.html?preset&callsign=ZZZZZ&what=all&mode=JT65&timerange=86400 also check out Ham-Apps JT-Utilities Useful helper applications for JT65-HF http://www.ham-apps.com/ === Hope I didn't bore you and others to tears John, good luck with your JT65 efforts, hope to see you in the waterfall soon. 73 & GB K5OAI Sam p.s. we now turn the list back over to other Elecraft chatter <g> -- View this message in context: http://elecraft.365791.n2.nabble.com/JT65HF-Data-Mode-A-tp7513437p7514542.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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
