[Elecraft] A K2 with a short-term memory problem

[edauer at aya.yale.edu]

Not an inappropriate question at all, Rich.   For lots of electronic devices it does matter.  The penalty for yanking some plugs could even be, in the older argot, the Blue Screen of Death.

-----Original Message-----
From: Rich WC3T <rich at wc3t.us> 
Sent: Sunday, June 27, 2021 4:01 PM
To: don at w3fpr.com
Cc: edauer at aya.yale.edu; elecraft at mailman.qth.net
Subject: Re: [Elecraft] A K2 with a short-term memory problem

Thanks for the clarification!

> On Jun 27, 2021, at 17:54, Don Wilhelm <don at w3fpr.com> wrote:
> 
> Rich,
> 
> In the case of the K2, it makes no difference if you 'pull the plug' or use the power switch.
> That same thing does not apply to the K3, KX3 or KX2 - you must power down properly because there are things saved during the power off cycle.
> In the case of the K2, the VFO frequency is not constantly remembered, so if one turns the VFO knob and immediately powers down, the frequency may not be remembered.  The VFO is remembered only after a few seconds of not changing.
> 
> 73
> Don W3FPR
> 
>> On 6/27/2021 5:39 PM, Rich WC3T wrote:
>> Dumb question, and I’m no K2 expert — but did you use the power switch to power down, or just remove power from the input line?    I heard that doing it by jerking the rug out from under the supply is a Bad Thing.
>> 
>>>> On Jun 27, 2021, at 17:32, Don Wilhelm <don at w3fpr.com> wrote:
>>> 
>>> Ted,
>>> 
>>> Try 'counting to ten' before powering down.
>>> If you move the VFO just before powering down, the VFO frequency may not have been written to EEPROM yet, the process is not immediate.
>>> 
>>> 73,
>>> Don W3FPR
>>> 
>>> 
>