[Elecraft] Freqency Display K-2

Tom Hammond NØSS [email protected]
Mon Jan 21 14:08:35 2002


Ed:

>I am going to assume I have a bad probe to start.  I can't do anything 
>further without the internal probe working.  I'll probably head to "rad 
>shack" to buy another capacitor and rebuild the probe.  I don't think they 
>carry caps at 10pf though.  Would an .01uF or .001uF work?

ASSUME that the probe is NOT defective until you can confirm it. Otherwise 
you may waste a lot of time.

If you have a clip-lead available and a capacitor (something between 10pF 
and .001uF), try merely connecting them in series from the (INSIDE) pin of 
the FCTR jack to TP3 and see if you get a reading when going to MENU | CAL 
FCTR. If you do, then suspect the probe.

ANOTHER thing it consider... a number of our builders have inadvertently 
inserted the two receptacle contacts into the FCTR PLUG in the reverse 
order, thus GROUNDING the center wire of the probe. The shield of the coax 
attaches to the OUTSIDE pin of the FCTR plug.

73 and good luck,

Tom Hammond   N0SS