Re: [wsjt-devel] FT8 with YAESU FT920
On 07/03/2018 09:39, Hans Piehler wrote: Now all stations are in the above range more than 2000. I think this is not the normal range to compare with the FT817. If I change the mode from DIG to USB, I have all stations in the normal range but no modulation comes to the backside connector. Hi Hans, Yaesu rigs usually have two menu settings that set the VFO display offset and shift for their USB-DATA modes (DIG), these need adjusting so that the dial frequency and passband are correctly aligned. Often zero for both is correct as that equates to a voice SSB passband with the dial frequency at the suppressed carrier frequency and the audio passband between 0Hz and ~4000 Hz and maximum width. Yaesu are not consistent with these parameters with the shift on some rigs allowing movement between LSB and USB, those need a positive shift of roughly half the maximum width to centre the IF passband on the USB side. 73 Bill G4WJS. -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot___ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
Re: [wsjt-devel] FT8 with YAESU FT920
On 03/07/2018 10:39 AM, Hans Piehler wrote: Hi Hans, > I started FT8 with a small equipment FT817. In this configuration I made > some QSO. > > The picture FT817 show the settings and the screen. It seems to work right. > > Than I changed to my home station FT920. There ist the picture FT920 > with the settings > > and screen. I confess that I'm a little bit surprised while looking at the waterfall on these pictures. On the FT817 picture, I'm observing regularly spaced signals over all the range. This is not usual. Perhaps an overdrive on the audio channel ? On the FT920 picture, I can see a non flat channel response on a frequency usually not used with FT8. > Now all stations are in the above range more than 2000. > > I think this is not the normal range to compare with the FT817. I suggest to verify that CAT is really well configured and operational on both rigs. > If I change the mode from DIG to USB, I have all stations in the normal > range but > > no modulation comes to the backside connector. Please note that switching the mode from DIG to USB can change also the sockets on your XCVR on which ones the signals appear. Best whishes, Claude (DJ0OT) -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
[wsjt-devel] FT8 with YAESU FT920
Hello dear OM's, I started with FT8 and a small equipment FT817. In this configuration I made some QSO. The picture FT817 show the settings and the screen. It seems to work right. Than I changed to my home station FT920. There ist the picture FT920 with the settings and screen. Now all stations are in the above range more than 2000. I think this is not the normal range to compare with the FT817. If I change the mode from DIG tu USB, I have all stations in the normal range but no modulation comes to the backside connector. What shell I do to get a good working condition? Can you help me? Mni tks es 73 de Hans, DL8ARJ -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot___ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
