[Elecraft] K3 Upgrade Kit Question

[Robert Dorchuck]

It has not been jumpered or removed.
Bob  W6VY

----- Original Message ----- 
From: "K2MK" <k2mk at comcast.net>
To: <jrhallas at optonline.net>; "Elecraft Reflector" 
<elecraft at mailman.qth.net>
Sent: Friday, March 06, 2009 4:53 PM
Subject: Re: [Elecraft] K3 Upgrade Kit Question


> Hi Joel:
>
> The upgrade to improve RF immunity affects two different I/O boards. 
> The
> board with the audio connectors on it and the board with the DB9 and 
> DB15
> connectors. The ALC mod kit for $20 is a Rev B version of the board 
> with the
> DB9 and DB15 connectors. And I don't know if the RF immunity mod was 
> done to
> that board or not. Someone who has the Rev B board in front of them 
> would
> have to comment on whether choke L1 has been jumpered across (or 
> perhaps
> removed entirely).
>
> 73,
> Mike K2MK
>
> Joel R. Hallas
> Fri, 06 Mar 2009 13:58:46 -0800
>
> I appreciate that the REMIOUPGD upgrade kit resolves ALC and band 
> data
> pull-up issues -- neither of which are of interest to me at the 
> moment.
> However, I wonder if the new board also includes updates to resolve 
> the RF
> pickup problems in lines connected to the K3 rear-panel MIC, PHONES, 
> PC
> IN/OUT and RS-232 rear-panel connectors?
>
> If so it would, IMHO, be worthwhile even if I never have anything 
> that reads
> band data.
>
> Regards, Joel
> Joel R. Hallas, W1ZR
>
>
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