No subject

as it appeared by the K3 meter. Using the K3 readings, I have 0.5 volt =
lower than you on key down, and that is acceptable. I should be able to =
correct that.

And yes, as you said, 'everything works just fine'.

Thanks much,
Rich, n0ce

  ----- Original Message -----=20
  From: N4CW at aol.com=20
  To: elecraft at mailman.qth.net=20
  Sent: Wednesday, December 26, 2012 11:56 AM
  Subject: Re: [Elecraft] New Output Power Issue, and a new question


  First of all, regarding a DC power distribution "strip": I used a =
RigRuner =20
  4009 and found that there was
  a significant voltage drop from the power source (Astron RS-35M) to =
the K3.=20
   Having taken measurements
  with a DVM, I concluded that the largest drop was from the =
distribution =20
  strip to the K3. A simple solution
  was to power the K3 from the larger "main" wire pair that fed the =20
  distribution strip.
  =20
  Then, to satisfy my own curiosity, I made the following meaurements =
today =20
  using the DVM then I took readings with the internal K3 "meter":
  =20
  DVM measurements: 13.773 VDC at the RS-35 terminals
                                   13.735 VDC at K3 connector in RX mode
                                   13.599 VDC at K3 connector in TX-Tune =
mode=20
  (10W out)
                                   12.860 VDC at K3 connector in TX mode =

  (100W out)
  =20
  K3 "meter" readings:  13.6 VDC in RX mode
                                  13.1  VDC in TX-Tune mode (10W out)
                                   12.4 VDC in TX mode (100W out)
  =20
  What's interesting is that the K3 "meter" current indication decreases =
with=20
   time when I
  make the test in TX mode (100W out), starting at about 18.2 Amps or =
so, =20
  then going down, down,
  down to 14.something when I let up on the hand key. I kept the key =
down =20
  just 15 or 20 seconds,
  not wanting to tempt fate!!! Power output stayed at 100W throught the  =

  procedure. Hmmmm....
  =20
  I'm satisfied with those readings: everything works just fine!
  Bert, N4CW
  =20
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