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
>>>
>>>
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