Hi Bill and Joe Using my IC735, I tried with 'allow frequency changes while transmitting' *not* ticked.
At t=0, rig went to tx and rig frequency was changed to tx freq. I noticed that dial frequency did change during the tx period, but the changes were only 10-20Hz and I can't check whether the radio changed (displays to 100Hz only). I also tried powering off the IC735 during tx period and after about 8 seconds got a rig control error as presumably the rig did not answer some CAT command that must have been sent during transmitting. I wonder if an FT817 when on transmit is likewise unresponsive? Charlie > Hi Bill, > > We know that some rigs won't accept commands to change frequency while > transmitting. What we were calling "the FT-817 problem" is only a > programming issue in the way I implemented Doppler control in WSJT-X. > For rigs like the FT-817, even though they can't do full Doppler control > we'd like to have the program able to set dial frequency just before a > transmission starts, and possibly reset it to another frequency when > receiving. The present timing does not allow this. > > -- Joe, K1JT > > On 6/2/2015 10:20 AM, Bill Somerville wrote: >> On 02/06/2015 15:11, Joe Taylor wrote: >>> Hi Charlie, >> Hi Joe& Charlie, >>> >>> My apologies -- the change in r5491 was a bad idea and caused the >>> Doppler corrections to fail. I have backed out that change. Please >>> upgrade to r5493 and rebuild. It should be OK now (but the FT-817 >>> issue >>> remains unresolved). >> If Doppler tracking is changing the frequency while transmitting then >> this is going to be a problem with the FT817/857/897 series as there are >> severe issues with doing that. They are one of the types of rigs that >> caused the introduction of the "Disable frequency changes while >> transmitting" setting. I realized that the 817 is a great rig for use as >> an IF for transverters at the time and did try and get reliable control >> while transmitting but so far I have failed. >>> >>> -- Joe, K1JT >> 73 >> Bill >> G4WJS. >>> >>> On 6/2/2015 8:55 AM, [email protected] wrote: >>>> I think I have found some unexpected Doppler control behaviour in >>>> r5491. >>>> This has not yet been verified by other testers, so please treat as >>>> preliminary feedback. >>>> >>>> What I see is: >>>> >>>> With Monitor on and Enable TX not red, all modes of Doppler control do >>>> not >>>> function on RX (as was the case with r5318). >>>> >>>> With Enable TX activated during a rx period, Doppler works on rx >>>> immediately, and also on tx when tx period starts. >>>> >>>> If Halt TX is pressed midway through a tx period the rig and dial >>>> freq >>>> stays on tx freq until the end of the tx period, then dial freq turns >>>> red >>>> at about t=52s. >>>> Dial freq turns to normal colour if you touch the rig's tuning. >>>> >>>> Tune engages Doppler OK and behaviour is normal. >>>> >>>> If you tune or come to the end of a test, rx stays where it last was >>>> from Doppler correction and the only way to get it back to nominal >>>> sked frequency is to toggle enable Tx. >>>> >>>> Occasionally on program start dial frequency is red and rig does not >>>> seem >>>> to get commands, requiring a TEST CAT before it works. I have not >>>> found a >>>> way of reproducing this however. >>>> >>>> Charlie >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> _______________________________________________ >>>> wsjt-devel mailing list >>>> [email protected] >>>> https://lists.sourceforge.net/lists/listinfo/wsjt-devel >>> ------------------------------------------------------------------------------ >>> _______________________________________________ >>> wsjt-devel mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/wsjt-devel >> >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> wsjt-devel mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/wsjt-devel > > ------------------------------------------------------------------------------ > _______________________________________________ > wsjt-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/wsjt-devel > ------------------------------------------------------------------------------ _______________________________________________ wsjt-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/wsjt-devel
