[Elecraft] XV144 help please

[Don Wilhelm]

Bob,

It did produce 20 watts with 1 mW input when it was here.  And the LEDs 
are calibrated to what *my* wattmeter was reading.
My wattmeter is checked periodically against a calibrated 40 dB power 
tap and a W7ZOI Power Meter (homebrew, but calibrated).

So remove the top cover, and try adjusting R22 (the Input Attenuator) to 
see if you can bring the power up.
Please test it using a good 50 ohm dummy load that is rated for 144 MHz 
or higher.  SWR on the feedline to your new antenna could create a 
mismatch in the XV144 output Low Pass Filter and result in low power output.
Use your 30+ MHz Low Pass Filter between the K3 and the XV144 just in 
case 144 MHz RF is getting back into the K3 power level detection 
circuit and causing a false indication of K3 power output.

If all else fails, return it to me - it is still under my workmanship 
warranty and any parts needed should fall under the Elecraft warranty.

73,
Don W3FPR

On 2/21/2013 3:39 PM, kd7yz at denstarfarm.us wrote:
> Howdy K3' people:
>
> I finally got one of my two 15 el 144 yagis up and thus could try
> hearing and sending on 2m.
>
> I set Band 144 off, so I think that means it looks for the XV144 though
> I do not have internal 2m anywaY,
>
> However I have heard nobody and the guys wgo tried are a few hundred
> miles away and may not be heard by me anyway.
>
> I have a Daiwa wattmeter of questionable quality at 144.
>
> It says key-down I have 5w out. The 7w green LED lights on thr
> transverter.
> I have Config:xvtr power to "L1.50mw" .
>
> I am not seeing any measurable SWR where I did when I tried my long-wire
>   for reference (duh).
>
> shouldn't I see 20 watts out of that baby? I believe Don did when he put
> it together.
>
> At moment I have but one transverter in the line; others are not wired
> in, are removed for the test. Their settings were set to "off" also.
>
> So: XV144 7w Green LED is all I get, sometimes  the 10w Green LED toggles over.
> Daiwa says 5 watts out.
>