[Elecraft] K3 RF-out spikes, was: K3 SSB Power Control and ALC Metering

[Graham Kimbell (G3TCT)]

I tested my rig using dummy load and scope.  My rig is serial 1198, using
f/w 2.38 and dsp 1.90.
I don't see any spike in output. On cw the o/p power on key down is
initially about 95% of the set value and then rises to the set value. I
tested this on all bands using 51w o/p.  On ssb the peak power occasionally
exceeds the set value but very slightly, maybe 5% or so.  I tried changing
the power setting but got the same result.
I did however notice that the needle on my analog power meter (Diamond
SX200) overshoots the set power - this appears to be a function of the
dynamics of the meter movement.

Graham G3TCT

----- Original Message -----
From: "Charles Harpole" <k4vud at hotmail.com>
To: "Kamal Sirageldin" <ksira at corpten.com>; <elecraft at mailman.qth.net>
Sent: Thursday, September 25, 2008 3:48 AM
Subject: [Elecraft] K3 RF-out spikes,was: K3 SSB Power Control and ALC
Metering



Yep, my recently factory re-done K3-100F #309 also

has RF output power spikes upon first key down or

first SSB word spoken.  The spike appears to be

at fully 120 watts when rig is adjusted to 50 watts.

When oh when will this rig be at least half way

done?  73,


Charles Harpole

k4vud at hotmail.com