[Elecraft] K3 Hardware Updates

[Brett Howard]

Hrm.  Seems odd.  My understanding was that they were there to reduce
bounce on the clock edges and to lessen the amplitude to about 3V when
talking to those devices.  

Logic tells me that it should be ok at both speeds with the termination
in place but your experience demonstrates otherwise.  

Perhaps I should turn mine back to SPI1 and see if I end up with any
issues. 

~Brett

On Sun, 2009-08-23 at 19:14 -0700, Ron D'Eau Claire wrote:
> Hi Brett. After putting in the diodes and resistors the VFO in my K3 was
> unstable until I changed to SPI 2. 
> 
> Wayne thought this was normal. 
> 
> Ron AC7AC
> 
> -----Original Message-----
> Actually I believe that the signals will be plenty stable if you place
> the hardware mod but don't change the frequency.  However speeding
> things up (using the SPI2 setting) w/o proper termination is going to
> cause problems.  
> 
> ~Brett (KC7OTG)
> 
> 73
>