[Elecraft] P3 center frequency

Sun Jul 21 23:35:41 EDT 2019

I have an additional problem, which is that sometimes this happens when 
I use the band up and band down buttons on the rig. I have not been able 
to understand why it only happens sometimes and not always.
I have a macro set up in the Commander module of the DXLabs program that 
I use for logging, which checks what band I'm on and then resets the 
limits and center as I want them, but it's still annoying.
Incidentally, for those who might be confused by the whole issue, it 
applies to using the P3 in FIXED, not tracking, mode.

73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 22/07/2019 3:04, Fred Jensen wrote:
> Not sure who I'm talking to here, no signature, no call.  It's a little 
> hard to explain but ...
> 
> Assume you set SPAN=100 KHz and put the left edge at the bottom of each 
> band.  Changing bands back and forth using the BAND ^/v switch will 
> preserve these settings, and every time you come back to a previous 
> band, they will appear ... so long as you don't touch any of the P3 
> controls.  However, using CAT commands [e.g. from a logger], you can 
> change to a new band and the settings will hold, however returning to 
> the previous band, the SPAN will still be 100 KHz but the center 
> frequency will have moved and the left edge will no longer be at the 
> bottom of the band.  Admittedly, it's a bit hard to duplicate but the 
> circumstances that cause it are common in contesting and it has been 
> duplicated by several folk, including me.
> 
> The issue has been raised here on the list more than once.  I think it 
> first came up several years ago, which could be 1 or 6, even Apollo 11 
> seems like yesterday to me these days. [:-)  It has some of the earmarks 
> of an intentional attempt to "do something good" in the firmware which 
> turned out to be not so good, but I really don't know.  For whatever the 
> reason, I expect it to come back to the settings it had when I left that 
> band.
> 
> As Randy said, it is really annoying.  I, and I think most, use the P3 
> visually instead of looking at the K3.  If I set the left edge at the 
> bottom of the band and the SPAN at 100 KHz, I automatically visualize 
> the 1st 100 KHz directly from the screen. If it's changed as a result of 
> band changes, my mental picture of that band segment is wrong.
> 
> 73,
> Fred ["Skip"] K6DGW
> Sparks NV DM09dn
> Washoe County
> 
> On 7/21/2019 4:20 PM, Tom wrote:
>> Hi,
>> What exactly do you mean?
>> It is always set to whatever you send.  If you explain this a little 
>> more perhaps I can help.
>> 73
>>
>>
>>
>> -----Original Message-----
>> From: elecraft-bounces at mailman.qth.net 
>> <elecraft-bounces at mailman.qth.net> On Behalf Of Randy Farmer
>> Sent: July 21, 2019 2:44 PM
>> To: elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] P3 center frequency
>>
>> It's been brought up several times in the last two or three years. No 
>> response from the P3 software guys. It's EXTREMELY annoying that the 
>> P3 won't respect the center frequency setting if the radio is tuned 
>> via any CAT command. I've given up on hoping it will ever be fixed. My 
>> guess is that it's all hands and the cooks working on K4 software 
>> these days.
>>
>> 73...
>> Randy, W8FN
>>
>> On 7/21/2019 12:45 PM, Fred Jensen wrote:
>>> Jim: In general, yes, if you change bands with BAND ^/v.  When you
>>> change bands via the CAT, the P3 center freq won't always end up where
>>> you last had it.  I believe SPAN width is preserved but the span
>>> limits show up strange.  It's a known issue, has been discussed at
>>> some length here a few months ago.
>>>
>>> 73,
>>> Fred ["Skip"] K6DGW
>>> Sparks NV DM09dn
>>> Washoe County
>>>
>>> On 7/21/2019 10:31 AM, Jim N7US wrote:
>>>> Should the P3 center frequency and span be remembered when changing
>>>> bands?
>>>> Rephrasing, can they be remembered when changing bands?
>>>>
>>>> Jim N7US
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