[Elecraft] P3 and Centering the Display

K5MWR K5MWR_VNA at yahoo.com
Wed Dec 7 18:54:38 EST 2016


Sean

Apologies as I did not read your full post when I sent the earlier response.

I too see the same type of response and need to execute an involved 
macro multiple times in order to get it to fully function.  Depends on 
what frequency/band and mode I am starting with.  I would like to have a 
macro to take me to a digital mode such as JT65 using something like below.

BN03;FA00007076000;MD6;DT0;PC020;BW0400;FT0;SB0;SWH09;#MKA1;#MFA+00007077000;#MKB1;#MFB+00007078000;#SPN000050;#CTF+00007077750;

My understanding is that the time to execute band or large frequency 
changes in indeterminate and that there is no simple pause command that 
can be inserted to allow the steps to complete.
I also find that the inability to know what mode such as VOX/PTT you are 
in causes problems.  There was mention at one time that a VOX command 
was to be implemented but have not seen that.

Dave K5MWR

On 12/7/2016 9:22 AM, Sean Logghe wrote:
> I was wondering if anyone has come up with a macro that will (reliably) move
> the P3 to a frequency (K3 VFO A) and center that frequency on the display?
>
>   
>
> I have a P3 w/ SVGA. I am using the latest firmware(MCU 1.60; SVGA 1.34;
> FPGA 1.04). I am testing macros using the latest P3 utility(1.16.3.15)
> Command Tester. (FYI - I live in Fixed Tune Mode.)
>
>   
>
> Consider the following scenario: Three macros that each move (FA) to 2.5
> MHz, 5.0 MHz, and 10.0 MHz respectively and then center the display (#CTF or
> #CTF 0 or #RCF 0 or #FXT0;#FXT1; or even just an FA again).
>
>   
>
> (And yes, I do have more useful needs for this, but this seems like a simple
> example.)
>
>   
>
> Execute them one after the other.
>
>   
>
> After each macro, I am always left with the Frequency Cursor at the left
> edge of the P3 display which is the desired frequency and now defined as the
> P3 "Center Frequency" as displayed in the middle of the top edge of the
> display (this is also the frequency indicated at the left of the top edge of
> the display, the "Lower Frequency Limit").
>
>   
>
> If I execute the same macro a second time I am centered on the display just
> fine. The breakdown seems to occur if I am commanding a new frequency which
> is not within some range of the current P3 display. IE. - Going from 2.5 MHz
> to 5.0 MHz fails but from 2.706 MHz to 2.5 MHz works.
>
>   
>
> (Bulletin! - Extensive (!) testing has shown that the 2.5 MHz macro will
> work properly if the starting frequency is in the range of 100KHz - 2.999
> MHz; the 5.0 MHz macro will work properly in the starting frequency range of
> 4.800 - 5.999 MHz; and the 10 MHz macro will work properly in the starting
> frequency range of 9.000 - 22.999 MHz.)
>
> I think that (from K3 relay noises) those boundaries coincide with some band
> filter switching. I have no idea what that means.
>
>   
>
> I have tried every command combination that I can think of to no avail.
>
>   
>
> Breaking the macro into separate components works fine.
>
>   
>
> But it would be nice to accomplish this without having to execute two
> separate macros.
>
>   
>
> Of course the internal programming of the P3 is a black box to me, but the
> behavior suggests that it may be a timing issue for the macro execution. It
> is as if, after executing the FA command, the centering commands are still
> seeing  the previous frequency and falling back on the default behavior of
> parking at the left edge of the display whenever it thinks that it is being
> commanded out of the range of the current P3 display. Even though it isn't.
>
>   
>
> But that may just be a fantasy I have created in my own mind!
>
>   
>
> I am happy to entertain any suggestions. Keep in mind that the manual would
> make you think that several options should work just fine but the execution
> isn't so copacetic. You might want to try things out with the Utility's
> Command Tester. Maybe my understanding of what should be possible needs
> realignment.  ;)
>
>   
>
> Or perhaps I should just resign myself to the reality that it doesn't work
> the way I want it to and move on!  :)
>
>   
>
> Thanks for any hints or tips.
>
>   
>
> Sean
>
> KB2CKN
>
>   
>
>   
>
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