[Elecraft] SP3 ISSUE

[Don Wilhelm]

All,

I can vouch for that as well.  I recently had a K2 on the workbench 
recently and observed that the receive response was not as good as 
expected.  I connected it to my signal generator which verified the poor 
response.  Then when turning the K2 on its back to do some probing, all 
the problems when away.
Bottom line was that I had a bad coax jumper in my assortment of BNC to 
BNC jumpers.  Wiggling the ends of the coax revealed which end it was 
and that end was immediately cut off.  BTW, it showed no problem in 
transmit, only receive.

Bad cables are often the culprit when experiencing a problem. Before 
digging into the equipment, check the cables.  That will fix the problem 
in 75% or more of the cases.
Build your own experience base and stow it away in your brain for later 
occurrences.

73,
Don W3FPR

On 12/24/2015 5:29 PM, Edward R Cole wrote:
> Experience!
> Back in 1980 I was beginning my new career as two-way radio tech 
> working in a BLM radio shop (had been mw engineer in old career in CA) 
> and asked help troubleshooting from a "50's oldster".  He told me that 
> most new-young techs make the mistake of looking for high-tech 
> problems when most "troubles" are simple.
>
> So check:
> 1.  power source; signal input/output - first  (that includes cables 
> and connectors)(and test equipment-meters)
> 2.  Control settings (pilot error stuff)
> 3.  Look, Feel, Sniff (often the problem will be very evident to those 
> senses)(that hot blackened thingy)
> 4.  Then get out the schematic and repair manual
> 5.  Call customer service (not always step five).
>