Elecraft

] Elecraft] KPA500 to K3 control cable

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Dave KD1NA

] Elecraft] KPA500 to K3 control cable

Jim,
The cable Elecraft sells is of top quality but is only 3 feet long. If that
length is ok then get it. If you need longer cable you can build it. The
schematic is in either the KPA500 construction or operation manual ( I
think it is in the construction manual).

You need 2, 15 pin HD D connectors ( Male type ) and an old parallel
printer cable or a old RS232 cable with DB 25 connectors at each end. It
took me about 20 minutes to build mine after rounding up the parts. I made
mine 5 feet in length which was just right for my station.

73

Dave KD1NA
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Steve Kercel

Re: ] Elecraft] KPA500 to K3 control cable

Another trick that works:

If you're using a K3 and KPA500, there are only 9 lines needed, and two
of those are grounds. A CAT5 cable has 8 lines. If you use one line for
ground and connect it to both ground pins at each end, you have the
necessary 7 lines left. I used this scheme to build a 15 foot jumper. It
works perfectly. I discussed this with Eric before I tried it.

73,

Steve
AA4AK

On 10/7/2012 7:44 AM, David Robertson wrote:

> Jim,
> The cable Elecraft sells is of top quality but is only 3 feet long. If that
> length is ok then get it. If you need longer cable you can build it. The
> schematic is in either the KPA500 construction or operation manual ( I
> think it is in the construction manual).
>
> You need 2, 15 pin HD D connectors ( Male type ) and an old parallel
> printer cable or a old RS232 cable with DB 25 connectors at each end. It
> took me about 20 minutes to build mine after rounding up the parts. I made
> mine 5 feet in length which was just right for my station.
>
> 73
>
> Dave KD1NA
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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Post: mailto:[hidden email]

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Richard Squire - HB9ANM

Re: ] Elecraft] KPA500 to K3 control cable

And yet anonther trick that works:

If the AUX cable is too short for you, you may EXTEND it using a normal, 15 pin straight-through cable (provided no wires are connected together or to ground). This can do no harm since the required interrupts are in the AUX cable. But ONLY as an extension, of course, not alone!!!
73
Richard - HB9ANM

Steve Kercel wrote

Another trick that works:

If you're using a K3 and KPA500, there are only 9 lines needed, and two
of those are grounds. A CAT5 cable has 8 lines. If you use one line for
ground and connect it to both ground pins at each end, you have the
necessary 7 lines left. I used this scheme to build a 15 foot jumper. It
works perfectly. I discussed this with Eric before I tried it.

73,

Steve
AA4AK

On 10/7/2012 7:44 AM, David Robertson wrote:
> Jim,
> The cable Elecraft sells is of top quality but is only 3 feet long. If that
> length is ok then get it. If you need longer cable you can build it.

Richard - HB9ANM

Dave KD1NA

Re: ] Elecraft] KPA500 to K3 control cable

In reply to this post by Steve Kercel

Steve, Sounds like a good idea and I have lots of cat5 cable laying around.

73
Dave KD1NA

On Sun, Oct 7, 2012 at 8:55 AM, Steve Kercel <[hidden email]> wrote:

> Another trick that works:
>
> If you're using a K3 and KPA500, there are only 9 lines needed, and two of
> those are grounds. A CAT5 cable has 8 lines. If you use one line for ground
> and connect it to both ground pins at each end, you have the necessary 7
> lines left. I used this scheme to build a 15 foot jumper. It works
> perfectly. I discussed this with Eric before I tried it.
>
> 73,
>
> Steve
> AA4AK
>
>
>
> On 10/7/2012 7:44 AM, David Robertson wrote:
>
>> Jim,
>> The cable Elecraft sells is of top quality but is only 3 feet long. If
>> that
>> length is ok then get it. If you need longer cable you can build it. The
>> schematic is in either the KPA500 construction or operation manual ( I
>> think it is in the construction manual).
>>
>> You need 2, 15 pin HD D connectors ( Male type ) and an old parallel
>> printer cable or a old RS232 cable with DB 25 connectors at each end. It
>> took me about 20 minutes to build mine after rounding up the parts. I made
>> mine 5 feet in length which was just right for my station.
>>
>> 73
>>
>> Dave KD1NA
>> ______________________________**______________________________**__
>> Elecraft mailing list
>> Home: http://mailman.qth.net/**mailman/listinfo/elecraft<http://mailman.qth.net/mailman/listinfo/elecraft>
>> Help: http://mailman.qth.net/mmfaq.**htm<http://mailman.qth.net/mmfaq.htm>
>> Post: mailto:[hidden email].**net <[hidden email]>
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>
>