[Elecraft] W2problems

[Gmail (kengkopp)]

If the cover of the sensor has been removed and then
replaced in a reversed position, this might be the cause.

The labels should be on the sensor "chassis" and -not-
on the cover.  This would avoid this potential problem.

73!
Ken Kopp - K0PP
http://tinyurl.com/7lm3m5



--------------------------------------------------
From: "Robert Friess" <rfriess at usa.net>
Sent: Wednesday, October 19, 2011 9:21 PM
To: "Alan Grant" <asgrant at aapt.net.au>
Cc: <elecraft at mailman.qth.net>
Subject: Re: [Elecraft] W2problems

> Alan,
>
> Check that you have the coupler connected in the right direction when you
> have it on the KPA500.  From your description, it sounds like it is
> connected backwards.
>
> 73,
> Bob, N6CM
>
> On Wed, Oct 19, 2011 at 7:56 PM, Alan Grant <asgrant at aapt.net.au> wrote:
>
>> I feel that I have a problem with my W2, when I connect the directional
>> coupler to my K3/100 s/n 05779, it indicates what I think is the correct
>> SWR and Power out, swr 1.1 to 1.2, then the atu brings it back to 1.0
>> however, when I connect the directional coupler to the output of my 
>> KPA500
>> the W2 shows the SWR as nearly maximum, and the forward power of 20-30
>> watts; however the SWR indication on the KPA500 shows
>>
>> only about 1 to 2 SWR leds and the output around 300 watts.
>>
>> I would have thought that having the coupler rated at 2kw it should be
>> connected to the output of the Amplifier.
>>
>> Have I thought wrong again, because what is the point of the W2 only
>> showing the output references of the K3/100.
>>
>> When I have the W2 connected to the K3/100 and the KPA500 in the 
>> operating
>> mode the SWR shown on the KPA500 is about2;1 and I am not happy for it
>> being that high, I don't want to hurt my new toys.
>>
>> I would like to know the correct way to connect the W2 so I am sure of 
>> the
>> "Correct" Swr
>>
>> Hoping that someone can enlighten me
>>
>> 73's
>>
>> Alan Grant
>>
>> VK4KO