[Elecraft] SO2R setup

[Hank Kohl K8DD]

In CT, CTWin, NA contesting programs the PTT delay is
used to immediately key the radio (and amp, if used), delay
the keying from the program for a user defined time, send
the CW from the PC buffer and quickly drop the PTT. 
PTT delay will not work with the K2 because it is common
to the dit line, or it will key the radio to full power, depending
on how the keying is set up.

I'm not sure about N1MM WroteLog and TRLog, but I believe
they are the same.

I have a box with a couple relays and a transistor to use LPT1
pin 14 to switch the keying line, amp relay line and eventually
(when I get around to it) switch RX audio.

Probably by the time I'm done with my homebrew box I'll have
the price of a DX Doubler and then some in it!

73    Hank    K8DD



W3FPR - Don Wilhelm wrote:

>Just as a reminder to those of you who are contemplating SO2R operation with
>the K2 - the stock K2 cannot properly use PTT for steering between the
>transceivers when in CW mode because the PTT line is the same as the DOT
>input.  If the SO2R enabled program steer CW by switching the keying, things
>will work fine, but I believe there are some that key both rigs and depend
>on the PTT routing to select the proper transceiver.  I am investigating the
>methods used by various programs right now.
>
>There is a 'cure' - take a look at my 'PTT for CW' article on my website
>www.qsl.net for the schematic.  The photos currently have my 'haywired'
>prototype, but I am working on a dressed up version that I should have
>completed in about 3 weeks.  No changes to the electrical operation, but a
>much 'prettier' packaging arrangement.
>
>73,
>Don W3FPR
>
>  
>
>>-----Original Message-----
>>From: elecraft-bounces at mailman.qth.net
>>
>>
>>I used a TopTen DX Doubler to interface the PTT and mic audio
>>between the two rigs.  Works fine.
>>
>>Greg
>>AB7R
>>
>>
>>
>>    
>>
>
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'Never argue with an idiot. They drag you down to their 
 level then beat you  with experience.'           -anon