[Elecraft] [Fwd: K2 VCO, wrong frequency] **FIXED**

[Don Wilhelm]

Bill,

The chart is correct if one considers the active state of the signal - but
you will not see that with a DMM, only possible with a 'scope.  So, yes the
chart is incorrect if you consider the normal voltage that you will read
with a DMM.  These are the serial clock and serial data lines coming from
the microprocessor and are not really meaningful unless you setup with a
delayed sweep 'scope and know the bit pattern that should be present - not a
task for those of us who do not have the microprocessor code being executed
available - that is Elecraft proprietary.  It further complicates things
because the microprocessor 'sleeps' whenever it can to minimize any digital
noise.

73,
Don W3FPR

> -----Original Message-----
>
> I still think the voltage chart for U4 pin 5 and 7 is incorrect (and the
> places they connect to).  Will report back later when I make it through
> the rest of Part 2 alignment.
>
> 73,   Bill  N2BC
>