Question re KX2 and KXPA100

[david perry]

Hi Folks
Quick question for you.

I have a KX3 (three) and a KX2 (two) and a KXPA100.

The kx3 and pa100 work fine.

However, when I use the kx2 it isnt fine.  I set AUX2 to ON, PA to ON and
all is well UNTIL I go over 10 watts.  When I go above ten watts on the
dial setting on the kx2 the TX light on the PA comes on and of course my Rx
goes deaf.  Wind it back to below 10 watts or below and the relay in the PA
clicks and the Rx works again.

Ive got latest firmware in KX2 and PA100.


What am I missing?

David G4YVM
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[Don Wilhelm]

David,

I don't know the KX2 well enough to give you even a guess, although it
is obvious that something is putting the KXPA100 into transmit.  Do you
have the ACC plug fully inserted - give it that extra bit of push.

But something is apparently wrong, and I suggest you contact K3support
at Elecraft.

73,
Don W3FPR

On 2/27/2017 1:38 PM, david perry wrote:

> Hi Folks
> Quick question for you.
>
> I have a KX3 (three) and a KX2 (two) and a KXPA100.
>
> The kx3 and pa100 work fine.
>
> However, when I use the kx2 it isnt fine.  I set AUX2 to ON, PA to ON and
> all is well UNTIL I go over 10 watts.  When I go above ten watts on the
> dial setting on the kx2 the TX light on the PA comes on and of course my Rx
> goes deaf.  Wind it back to below 10 watts or below and the relay in the PA
> clicks and the Rx works again.
>

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[Elecraft mailing list]

>The kx3 and pa100 work fine.



>However, when I use the kx2 it isnt fine.  I set AUX2 to ON, PA to ON and all is well UNTIL I go over 10 watts.


When you mention AUX2, it suggests to me that you're trying to key the amp by directly connecting the KXPA100 PA KEY port to the KX2's AUX jack, which is not the same as the KX3's ACC2 jack. 

Could you clarify how your KX2 is connected to the KXPA100? Are you using the recommended method of connection, i.e., the KX2ACBL and KXPACBL adapters? My intuition is that the KX2ACBL is the most likely culprit; either it isn't fully seated, or it isn't there. 


73, Ryan AI6DO 
   
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