[Elecraft] XV power control

[Matt Osborn]

John,

I've seen those symptoms when the XV power out was adjusted to 20
watts at the high end of the band.  The K2 28MHz band has a bandwidth
of 800KHz.  If the XV 20 watt power is adjusted at a frequency much
over that 800KHz bandwidth, the K2 isn't really putting out the full
1mw so the XVpower out is adjusted too high.

On Sat, 18 Mar 2006 18:22:21 -0500, "John D'Ausilio"
<jdausilio at gmail.com> wrote:

>Recent model K2, just built the K60XV for it. VRDET looks fine .. half
>a volt at the low end up to about 3.5 on the high end, and the
>meter/display increase smoothly. When I connect one of the XVs to it,
>the XV out pegs at about 150mw indicated and if I back the poiwer down
>to min it still shows 4 bars on the XV. I've gotta find my Accuvolt
>and build it so I have something to measure a milliwat with, but in
>the meantime does anyone have any ideas/suggestions as to what may be
>wrong? Seems to me that if VRDET looks OK then the K2/K60XV must be
>working .. but all three XVs show the same effect which makes me
>suspect the K2 .. I have another K2 but havn't done the KAT mod on it
>yet, I suppose I can do that as well to isolate things ..