from John kb3hqh

[John Klokis]

first of all I want to thank everyone for replying to my question.  I should have told you how I hooked it up.  I have the regular k2 cable that interfaces with the antenna tuner, then goes into a long cable with the serial connector.  so it has three serial connectors.

I plugged a radio shack serial port to usb cable into the female connector that goes to the computer and thenthe usb connector into my computer.  I had already installed the software for the Radio Shack cable.  

Then everytime i ran the software (n4py) , my computer crashed and rebooted itself.   Did the software get corrupted in the radio control program, or was the radio shack serial port to USB cable not the right cable to use?

And what kind of cable the Elecraft sell.  Does it have the three serial connectors on?  Then where is the USB connector?  Or does it have two serials and one USB conector.

Reinstalled the software and it worked fine for the jupiter.  Did not try it again with the K2.

Looking for some feedback.  Hopefully I did not damage the rig.

The rig operates fine now though.

John kb3hqh
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[Don Wilhelm-4]

John,

Elecraft does not sell pre-assembled cables.  The one you have there
sounds like it is the correct one.  It is both a serial cable (the long
end) and a K2 to KAT100 communication cable.  The conductors used are
different on each end of the cable.

You must connect the *center* DE9 connector to the K2 - if you tried
connecting the extreme end to the K2, it will not work for computer
communications (that far end goes to the KAT100 only).

The adapter sold by Elecraft is similar to the one you have - it is not
a cable, just a USB/serial adapter, but has been tested with the K2 and K3.

N4PY software does continuous polling of the radio in an effort to
connect, so it will normally connect after you get things right.

Do you have the menu PORT parameter set to ON? (secondary menu)
Do you have the computer serial port (the virtual one from the
USB/serial adapter) characteristics set as the K2 requires? (see the
KIO2 instruction manual or the KPA100 manual - download the manuals from
the Elecraft website if you don't have these).

I have no idea why the N4PY software crashed - Carl writes quite stable
code.  I seriously doubt if you could damage the K2 as long as you did
not connect a standard serial cable to it and the computer.

73,
Don W3FPR

John Klokis wrote:
> first of all I want to thank everyone for replying to my question.  I should have told you how I hooked it up.  I have the regular k2 cable that interfaces with the antenna tuner, then goes into a long cable with the serial connector.  so it has three serial connectors.
>
> I plugged a radio shack serial port to usb cable into the female connector that goes to the computer and thenthe usb connector into my computer.  I had already installed the software for the Radio Shack cable.  
>
> Then everytime i ran the software (n4py) , my computer crashed and rebooted itself.   Did the software get corrupted in the radio control program, or was the radio shack serial port to USB cable not the right cable to use?
>
> And what kind of cable the Elecraft sell.  Does it have the three serial connectors on?  Then where is the USB connector?  Or does it have two serials and one USB conector.
>
>  
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