[Elecraft] K3 New fw loader

[Joe Subich, W4TV]

Don, 

> OK, that shoots down my theory that it is manufacturing date 
> related.  Well, *maybe*, we now have a sample of 2 that do 
> not fail, and several that do. 

Here's one more data point ... I deleted all of the old files 
from the firmware directory in the K3 Utility, extracted the 
MCU 2.67/DSP 1.96 package and uploaded it to K3 S/N 1450.  The 
"failure" disappeared after reloading MCU 2.67, DISP 1.96 and 
FPF 0.02.  I then stepped through MCU 2.78/DSP 1.98 and MCU 
2.97/DSP 2.02 which also worked fine.  

When I reached MCU 3.03/DSP 2.10 the "failure" reappeared.   

Stepping back to MCU 2.97/DSP 2.02 restored normal operation 
and installing ONLY MCU 3.03 with DSP 2.02 generated the 
problem.  

It looks like there is a subtle bug introduced in MCU 3.03 
(between 2.99 and 3.03) but I don't understand why my older 
K3 does not display the same failure. 

73, 

   ... Joe, W4TV 
   





> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don Wilhelm
> Sent: Friday, April 17, 2009 10:47 AM
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3 New fw loader
> 
> 
> OK, that shoots down my theory that it is manufacturing date 
> related.  
> Well, *maybe*, we now have a sample of 2 that do not fail, 
> and several 
> that do.  Not really enough for valid conclusions   Results 
> to be seen, 
> but at least there are several K3s that a fix can be tested on.
> 
> 73,
> Don W3FPR
> 
> ON4WIX wrote:
> > Mine is s/n 192, received it as a kit in January 2008. No problem 
> > here.
> >
> > 73
> > Glenn ON4WIX
> >   
> >
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