RS-232 Question

[DW Holtman]

Hello,

 I have hooked up an old computer out in my shop. I made some cables and I'm in the process of trying to talk to my K2 via the computer. I have a KPA100 in the K2. The software I'm using is the K2 remote from the Elecraft web page. I have set it for comm port1 (the only port available on the computer) and get a message that no K2 can be found.

I have ohmed the cables and think they are good. They also have connectors for a KAT100 (which is backordered) and a XV50 (which I'm having other problems). So the only thing connected is the K2 and the computer.

Is there an easy way to determine if the problem is in the KPA100, the cables or the computer?

Thank you in advance for any help.

Best,
DW Holtman
WB7SSN
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[Don Wilhelm-4]

Do you have PORT set to ON in the secondary menu?
It may be instructive to check the port using the manual commands shown
in the KIO2 manual and Hyperterm or some similar dumb terminal application.

Do you have any other devices that are known to work from a serial
port?  An old external modem for instance?  If so, you could connect
that to the computer port to check the port operation,
Can you move the K2 to another computer with a known good serial port?
It is a process of elimination.  If you have a 'scope and lots of
patience, you can check the TXD and RXD signals to see which ones are
working.  Check the web for information on RS-232 signalling to see what
the expected signal levels are for both mark and space.

73,
Don W3FPR

DW Holtman wrote:

> Hello,
>
>  I have hooked up an old computer out in my shop. I made some cables and I'm in the process of trying to talk to my K2 via the computer. I have a KPA100 in the K2. The software I'm using is the K2 remote from the Elecraft web page. I have set it for comm port1 (the only port available on the computer) and get a message that no K2 can be found.
>
> I have ohmed the cables and think they are good. They also have connectors for a KAT100 (which is backordered) and a XV50 (which I'm having other problems). So the only thing connected is the K2 and the computer.
>
> Is there an easy way to determine if the problem is in the KPA100, the cables or the computer?
>
> Thank you in advance for any help.
>
> Best,
> DW Holtman
> WB7SSN
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft   
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>
>
>  

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Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com