[Elecraft] Switching PS for travel with K2/100

[John Webster]

Thank you to all those who replied, on and off list.
Output voltage is adjustable.  I will report to the list 
the results in due course.

But right now, a significant problem, that eclipses
the output voltage issue.

On tryout, the SEC-1223 is producing wide band
white noise across most, if not all, ham bands.  This
effectively raises the s-meter reading 3 to 5 bars!
It blocks out signals, and renders the rx almost
useless.  This is not what I expected.  Birdies or
rough buzz on specific frequencies or range of 
frequencies--perhaps--broad band white noise 
was not expected.

I tried moving the PS into another room (20 ft)
running a long mobile type DC lead.  No 
difference, at all, to the effect with the PS next
to the rig using a very short DC lead.  The noise 
is coming through the cable.  Running the K2
off the Astron RS-35 while the switcher is on
(but not connected to the K2) results in no noticible 
noise.

One caveat to be fair, I am using a single wire
end fed random 120 foot long wire ant, 2 feet 
of which are in the shack from rig to exit point
out of the house.  This makes noise pickup much
easier.  BUT the point of the whole exercise is
portable operation with random length wire
antennas hanging out of hotel windows.  SO . . . 

My hunch -- something is defective with the
output RFI suppressors on the DC out line in this
particular unit.  Solution?  Take it back and swap
for another?  Or is this the inherent "personality"
of a switching PS that I have to learn to live with?

Comments, help?

Thanks,

John, N6JW