[Elecraft] K3 New fw loader

[Don Wilhelm]

Joe and all,

It seems much of Elecraft has gone to Visalia for the weekend, so we may 
not get any further ideas until they return.

The serial number is not the best indicator of the K3 vintage until 
after the extreme backlog was cleared last year.  If you recall, factory 
assembled K3s spent longer at Aptos than the kits, and serial numbers 
were pre-assigned at the time the order was pulled.  The date of 
manufacture (or shipment) is a much better indicator of vintage for K3s 
during that backlog period.

Mine is of the December 2007 vintage and it has the same behavior as 
Brian's which is June '08.  It would appear that many earlier K3s do not 
display the same behavior.

*If* the Data mode is stored in EEPROM, then I do have a good guess for 
the source, but we will have to wait on Wayne and Lyle for that 
information - patience is good, the problem has been identified and it 
will not be ignored.

Many thanks to Brian for spotting this.  My data mode stays in DATA A 
normally so I for one would not have noticed in normal operation.

73,
Don W3FPR

Joe Subich, W4TV wrote:
>> Perhaps if we knew which S/N's are involved that might also 
>> help unravel what's going on.
>>
>> Mine is #1129.  Another reported his #980 had it.   W3FPR is 
>> seeing it also.  I believe he has an even older K3.
>>     
>
> I don't understand it either ... I've been TRYING to duplicate 
> the symptoms and can't make the rig come up in anything except 
> FSK D when that's where it was set.  S/N is 622 but I've heard 
> of "failures" with both higher and lower s/n. 
>
> 73, 
>
>    ... Joe, W4TV 
>  
>
>
>   
>> -----Original Message-----
>> From: Brian Alsop [mailto:alsopb at nc.rr.com] 
>> Sent: Friday, April 17, 2009 6:36 AM
>> To: lists at subich.com
>> Subject: Re: [Elecraft] K3 New fw loader
>>
>>
>> Joe,
>>
>> There has to be a common failure mode for those of us 
>> experiencing this.
>>
>> Rumors have it that some EEPROMs are slow to write for series 
>> of boards.
>>  
>> Perhaps if we knew which S/N's are involved that might also 
>> help unravel 
>> what's going on.
>>
>> Mine is #1129.  Another reported his #980 had it.   W3FPR is 
>> seeing it 
>> also.  I believe he has an even older K3.
>>
>> The odd thing is that whatever triggered this,  can't be 
>> cured by going 
>> back to older FW versions and older FW loaders.
>> It's like an EEPROM memory bit is bad or not being written on 
>> shutdown.. 
>>   Behaves like what you get when turning off power supply rather than 
>> the K3 power switch.
>>
>> A mystery indeed.
>>
>> 73 de Brian/K3KO
>>
>> Joe Subich, W4TV wrote:
>>
>>     
>>> Strange ... I'm also running 3.10 loaded with the new utility.
>>> I loaded 3.10, DSP1 2.15, DSP2, 2.15, FP 1.00 and the data 
>>> tables twice.  Power was cycled power between the two uploads.  
>>>
>>> I have not checked the second K3 ... it's offline at the moment
>>> waiting for me to make a couple of the updates. 
>>>
>>> 73,
>>>
>>>   ... Joe, W4TV
>>>
>>>
>>>       
>
>
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