[Elecraft] [K2] 8T signal at J13

[Steve Kavanagh]

Thanks, Don.  That is what I was figuring too, but I wanted another pair of eyes on it!  The TIK2 uses both the 8R and 8T lines - typically 8R is used for transverter PTT, while 8T is (optionally) used to switch the bias to the K2 PA to ensure it stays off when using the transverter.  I think it would probably be ok to leave it unconnected, but I'm just reviewing my options. 73,Steve VE3SMA
      From: Don Wilhelm <w3fpr at embarqmail.com>
 To: Steve Kavanagh <skavanagh72 at yahoo.ca>; "Elecraft at mailman.qth.net" <Elecraft at mailman.qth.net> 
 Sent: Tuesday, February 10, 2015 6:30 PM
 Subject: Re: [Elecraft] [K2] 8T signal at J13
   
Steve,

As far as I can determine, no harm would come from making that connection.
IMHO, it would be better to invert the 8R signal, but then I did not 
have any 'say' in the DEMI design.

73,
Don W3FPR



On 2/10/2015 4:07 PM, Steve Kavanagh wrote:
> I was given a DEMI TIK2 transverter interface board which I would like to install in a K2.  It requires the 8T signal on pin 6 of J13 on the RF board, which was there on early K2s but not on more recent versions.  Can I just connect together the pads marked "X" and "8T" (on page 9 of the K60XV manual for example) ?  Or will this make weird things happen?  Obviously I'd have to break this connection if I wanted to swap in a K60XV instead. 73,Steve VE3SMA
>