[Elecraft] kpa100

[Don Wilhelm]

Ron,

The update/T-R switch redesign was done to combat a parasitic that 
occurred with some KPA100s (not all and really not many) on 40 meters.

The parasitic showed up more commonly for builders who were also using 
the KAT100 for some as yet unexplained reason.

So if you either: just want to have the newest design, or if you are 
operating with the KAT100 or if you find a 40 meter parasitic later, 
then yes, add the upgrade.  It is easier when you are doing the initial 
build - download the new manual Rev E (or Rev D with the latest errata 
sheet) and build according to the new manual.  If you choose that route, 
be certain to do a full inventory so you will know which parts are extra 
and not to be installed with the updated build.

73,
Don W3FPR


Ron McMurray wrote:
> bought mine in mar of 05, manual says rev. c.
> what is the benefits of updating it and do i need to.
> ron