[Elecraft] K3 after turning on doesn't receive or transmit

[Don Wilhelm]

Dave,

If you have *not* been "pulling the plug" to shut down the K3, then it 
may be that it needs a trip back to Watsonville to rezap the bootloader.

But OTOH if you have been turning the power supply off first and not 
using the K3 power button first, try 'doing it properly' over the 
weekend and contact support at elecraft.com Monday.

Removing the power from the K3 will not normally do any damage (but it 
can).  In most cases, the thing that happens is that it does not restore 
the band/frequency/mode, etc. that you were last using - or if you made 
menu setting changes, those will not be remembered.
Although it *can* scramble the bootloader, it seldom does - except if 
you are unlucky.

Yes, it is similar to a PC in that regard.

73,
Don W3FPR

On 10/13/2017 4:42 PM, Dave Cole (NK7Z) wrote:
> I understand why, I was just not aware the K3 needed to be actually shut 
> down explicitly.
> 
> I tend to never pull power from anything running anyway, (too many years 
> doing PC, and dedicated hardware support in broadcast), but I was 
> totally unaware the K3 needed a shutdown sequence...