Maybe we need a new function in hamlib to set  vforx, vfotx, freq,split, and
mode all at once in hamlib.

So the VFO swap would only be once and very infrequent.

The Yaesu 450D backend I've been working is one where you have to swap in
and you can apparently see a little dance on the rig from the swapping going
on.

 

If hamlib were to get a new function, you could use priv->curr_mode,
priv->curr_vfo, priv->curr_freq, priv->curr_split or such to determine if
anything needed to be done.

You'd remove the VFO swap if the current VFO is OK.  You'd query all these
on a detected band change from VFO frobbing by the operator.

 

That's a lot of rigs to change though but this idea makes sense to me at the
moment.

 

Mike

 

 

 

From: Bill Somerville [mailto:g4...@classdesign.com] 
Sent: Tuesday, December 16, 2014 8:36 AM
To: wsjt-devel@lists.sourceforge.net
Subject: Re: [wsjt-devel] Changing band on rig

 

On 16/12/2014 14:30, Michael Black wrote:
Hi Mike,

And it's only on band change too.not just frequency change.

So if the flag is only set on band change it would minimize VFO swapping.

Same problem happens on querying VFO having to swap them around so minimal
is best as you say.

 

Do you have a band detector in the code?

No, but it's a one liner given that the ADIF bands are defined already.

I need to think a bit about the implications of this, I have been bitten a
few times by time critical CAT command changes breaking on some rigs is
unexpected ways.



 

Mike

73
Bill
G4WJS.



 

From: Bill Somerville [mailto:g4...@classdesign.com] 
Sent: Tuesday, December 16, 2014 8:10 AM
To: wsjt-devel@lists.sourceforge.net
Subject: Re: [wsjt-devel] Changing band on rig

 

On 16/12/2014 13:53, Michael Black wrote:
Hi Mike,

Doesn't really matter if WSJT-X is running or not.same behavior..but this is
the typical scenario.Rudy reported this to me as he's fiddling with knobs
all the time and I duplicated the problem.

 

Let's say WSJT-X is not running.  Your rig is set 160M LSB no split.

Start WSJT-X - it switches over to last band worked.say 20M, USB, Split.

Switch rig to 160M from the rig.   Mode will not change to USB on next
transmit.

OK, so the rig is remembering the mode from the last time 160M was used.

There is an issue in that many rigs cannot have their split Tx VFO mode
queried or changed without some swapping around of VFOs. WSJT-X tries to
avoid these VFO swaps wherever possible since they glitch the receive (or
transmit) audio.

The same applies to Tx frequency but many more rigs have a way of setting
the Tx frequency directly and it is a critical parameter that changes in
normal WSJT-X usage.

I have taken the view that, given a CAT controlled rig can be QSY'ed from
WSJT-X, not doing all these expensive and intrusive checks on each start of
transmission is best. Maybe that is too lenient.

I suppose that a flag could be set whenever there in an unsolicited rig
frequency change and that on  the next Tx both the Tx frequency and mode
should be verified and corrected if necessary when the flag is set.




 

73

Mike

W9MDB

73
Bill
G4WJS.




 

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