[Elecraft] P3 Ref Lvl saving

[Bill Frantz]

Hi Paul

Thanks for looking into what is really a minor issue.

Here's what I see with my setup: K3 6299, P3 2380 with SVGA 
(which I think I ordered at the same time as the P3). P3 is 
powered from K3.

The K3 is running:

   MCU 5.38, DSPs 2.86, FP 1.25, DVR 1.03

The P3 is 1.60 SVGA 1.34 and SpanScale is OFF. (I noticed this 
issue with earlier versions of the P3 firmware.)

The span on 80M is 100KHz and on 160M is 200KHz.

I power on and set 160M Ref Lvl 96, switch to 80M and note that 
the Ref Lvl is 111.
Power off and on with the K3 power button.
Radio is on 80M and Ref Lvl is 111.
Switch to 160M and Ref Lvl is 96.

If I change SpanScale to REF LVL only and repeat the test:

I power on and set 160M Ref Lvl 96, switch to 80M and note that 
the Ref Lvl is 111.
Power off and on with the K3 power button.
Radio is on 80M and Ref Lvl is 111.
Switch to 160M and Ref Lvl is ***111***.

For completeness, I tried with SpanScale REF LVL & SCALE and the 
160M Ref Lvl was also 111. SpanScale is certainly part of the issue.

73 Bill AE6JV

On 4/11/16 at 11:20 AM, psaffren at elecraft.com (Paul Saffren) wrote:

>BIll,
>
>I just cannot duplicate that here on the bench.  I am using 
>version 1.60 in my P3.  Here are the steps that I do:
>
>1) put the K3 on 160 meters, and then set the ref level to say 126.
>2) put the K3 on 80 meters and then change the ref level to 145.
>3) power cycle the unit.
>4) go back to 160, and check the ref level.  It is in fact 126.
>
>Question, what is the span on 160?
>
>-Paul
>
>On 04/11/2016 11:12 AM, bill at k1gq.com wrote:
>>Paul,
>>
>>With SpanScale ON, if I power cycle with the radio on 160, the REF LVL is restored correctly. If I
>power cycle with the radio on another band, then the 160 REF 
>LVL is not restored correctly. I’ve never seen this happen 
>for any band other than 160.
>>
>>I need SpanScale more than I need remembered 160m REF LVL, so I’m content with this small issue.
>>
>>Thanks for the note about the serial command.
>>
>>Bill, K1GQ
>>
>>>On Apr 11, 2016, at 1:58 PM, Paul Saffren <psaffren at elecraft.com> wrote:
>>>
>>>Hi Bill,
>>>
>>>Regarding the serial command not saving the span: there is a known bug in the P3 with saving the
>span when a serial command is used. This will be available in the next release.
>>>
>>>Regarding 160 meters not saving the ref level correctly: it still sounds like the ref level issue
>is with SpanScale.   If you turn off spanscale, does it fix the problem?
>>>
>>>-Paul
>>>
>>>
>>>On 04/11/2016 10:47 AM, bill at k1gq.com wrote:
>>>>Paul,
>>>>
>>>>Interesting. I too see the failure to remember REF LEVEL only on 160. And I need SpanScale turned
>on.
>>>>
>>>>Perhaps this is related: when I set SPAN using the #SPAN command, change bands on K3 then change
>back, the SPAN I just set is not remembered. This does work as expected when I use the P3 buttons.
>>>>
>>>>Or maybe this only happens to P3 owners named Bill :-)
>>>>
>>>>   Bill, K1GQ
>>>>
>>>>>On Apr 11, 2016, at 1:38 PM, Paul Saffren N6HZ <pauls at elecraft.com> wrote:
>>>>>
>>>>>Hi Bill,
>>>>>
>>>>>Make sure you have SpanScale turned off, and then try it.  I just tried it
>>>>>here on my bench units.  I put the K3 on 160 and set the RevLvl to 139 (it's
>>>>>noisy here).  Then power cycled the radio and P3.  The P3 came up with 139
>>>>>on 160 meters.
>>>>>
>>>>>-Paul
>>>>>
>>>-- 
>>>Paul Saffren, N6HZ
>>>www.elecraft.com
>>>831-763-4211 x122
>>>
>
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