Serial Cable routing

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Serial Cable routing

Phil K3TUF
What is the preferred serial cable routing for the full K line: K3, P3
and KPA500 ?
Looks like from the KPA maunal that PC only goes to Amp.
Thanks,
Phil K3TUF
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Re: Serial Cable routing

Jack Brindle-2
Computer - P3 - K3
Computer - KPA500
Computer - KAT500

Neither the KPA500 nor the KAT500 are involved in the P3/K3 serial port chain.

Jack Brindle, W6FB

Sent from my iPad

> On Dec 30, 2013, at 5:22 PM, Phil Theis <[hidden email]> wrote:
>
> What is the preferred serial cable routing for the full K line: K3, P3 and KPA500 ?
> Looks like from the KPA maunal that PC only goes to Amp.
> Thanks,
> Phil K3TUF
> ______________________________________________________________
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Re: Serial Cable routing

k6dgw
So iPad [I can say that because I actually know you're a human being,
you hiked me a couple of miles to the In-N-Out :-)], what am I missing
here?  The instructions told me to go to the P3 before the K3, and to
put the KAT500 in between the K3 and KPA500.  This has worked for me
from the very beginning, not long after the Big Bang, and for ever after
... well, at least as far as we've gotten.

Full Disclosure:  The computer now goes to a little boardie-thing from
Pignology that runs my PigKnob, and then to the P3.  The rest is all the
same, and it all works, still.

I thought the KAT would interrupt the KPA key line when tuning, thus it
happens before the KPA on the 15-wire Elecraft Network?  Oh so much to
learn.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party 4-5 Oct 2014
- www.cqp.org

On 12/30/2013 6:48 PM, Jack Brindle wrote:
> Computer - P3 - K3
> Computer - KPA500
> Computer - KAT500
>
> Neither the KPA500 nor the KAT500 are involved in the P3/K3 serial port chain.
>
> Jack Brindle, W6FB
>
> Sent from my iPad


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Re: Serial Cable routing

Dick Dievendorff-4
You have it right, Fred.

 The only serial daisy chain is from PC to P3 to K3.  The amp and KAT500 have independent connections to a PC.  There is a15 pin ACC cable from K3 thru KAT500 to KPA500.

83 de Dick, K6KR

> On Dec 30, 2013, at 20:06, Fred Jensen <[hidden email]> wrote:
>
> So iPad [I can say that because I actually know you're a human being, you hiked me a couple of miles to the In-N-Out :-)], what am I missing here?  The instructions told me to go to the P3 before the K3, and to put the KAT500 in between the K3 and KPA500.  This has worked for me from the very beginning, not long after the Big Bang, and for ever after ... well, at least as far as we've gotten.
>
> Full Disclosure:  The computer now goes to a little boardie-thing from Pignology that runs my PigKnob, and then to the P3.  The rest is all the same, and it all works, still.
>
> I thought the KAT would interrupt the KPA key line when tuning, thus it happens before the KPA on the 15-wire Elecraft Network?  Oh so much to learn.
>
> 73,
> Hen
> Fred K6DGW
> - Northern California Contest Club
> - CU in the 2014 Cal QSO Party 4-5 Oct 2014
> - www.cqp.org
>
>> On 12/30/2013 6:48 PM, Jack Brindle wrote:
>> Computer - P3 - K3
>> Computer - KPA500
>> Computer - KAT500
>>
>> Neither the KPA500 nor the KAT500 are involved in the P3/K3 serial port chain.
>>
>> Jack Brindle, W6FB
>>
>> Sent from my iPad
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:[hidden email]
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Re: Serial Cable routing

Jack Brindle-2
In reply to this post by k6dgw
Oh Fred...

You are mixing Apples and Lenovos… We are talking two different connections. The ones I listed are for the serial port. The connection you are talking about is the 15-pin AUX cable, which indeed goes from the K3 to the KAT500, then a second from the KAT500 to the KPA500. These are two totally different communications media. Also note that RS-232 is _NOT_ involved in the AUX connection, nor is the computer (or your Pig box).

The KAT500 indeed does interrupt the KEY line that is included in the AUX cable running from the K3 to the KPA500. If you have separate phono-cables that connect the K3/KAT500/KPA500, you should immediately remove them! That signaling is handled in the AUX cable! I suspect you have things cabled properly, though. Otherwise you wouldn’t be cleaning my clock in all those contests!

Perhaps we should have walked further to the IN-N-Out… :-)

Jack B.

On Dec 30, 2013, at 8:06 PM, Fred Jensen <[hidden email]> wrote:

> So iPad [I can say that because I actually know you're a human being, you hiked me a couple of miles to the In-N-Out :-)], what am I missing here?  The instructions told me to go to the P3 before the K3, and to put the KAT500 in between the K3 and KPA500.  This has worked for me from the very beginning, not long after the Big Bang, and for ever after ... well, at least as far as we've gotten.
>
> Full Disclosure:  The computer now goes to a little boardie-thing from Pignology that runs my PigKnob, and then to the P3.  The rest is all the same, and it all works, still.
>
> I thought the KAT would interrupt the KPA key line when tuning, thus it happens before the KPA on the 15-wire Elecraft Network?  Oh so much to learn.
>
> 73,
>
> Fred K6DGW
> - Northern California Contest Club
> - CU in the 2014 Cal QSO Party 4-5 Oct 2014
> - www.cqp.org
>
> On 12/30/2013 6:48 PM, Jack Brindle wrote:
>> Computer - P3 - K3
>> Computer - KPA500
>> Computer - KAT500
>>
>> Neither the KPA500 nor the KAT500 are involved in the P3/K3 serial port chain.
>>
>> Jack Brindle, W6FB
>>
>> Sent from my iPad
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:[hidden email]
>
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Re: Serial Cable routing

k6dgw
In reply to this post by Dick Dievendorff-4
Okay, sort of slow here but I'm remembering now that the serial is
computer-->P3-->K3.  The 15-wire Elecraft network is
K3-->KAT500-->KPA500.  Got the flashlight out, looked behind the rig,
and that's how it seems to be.  I've got this different USB thingy by
the laptop that I now know goes to the KAT500 for FW updates.

For what it's worth to everyone else:  I update my Elecraft firmwares
when something happens in them that affects me or that I might care
about.  Most of the time that's not the case and believe me, I'm not
current ... if it works and makes me happy, good.

I retired out of the DoD hardware/software business, and I learned a
great lesson.  If it works good for the people who use it, don't screw
with it.  Didn't make our marketing department happy, but they didn't
like me anyway.  Happy New Year to all

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party 4-5 Oct 2014
- www.cqp.org

On 12/30/2013 8:17 PM, Dick Dievendorff wrote:
> You have it right, Fred.
>
> The only serial daisy chain is from PC to P3 to K3.  The amp and
> KAT500 have independent connections to a PC.  There is a15 pin ACC
> cable from K3 thru KAT500 to KPA500.
>
> 83 de Dick, K6KR


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Re: Serial Cable routing

Jim Brown-10
On 12/30/2013 8:43 PM, Fred Jensen wrote:
> Okay, sort of slow here but I'm remembering now that the serial is
> computer-->P3-->K3.  The 15-wire Elecraft network is
> K3-->KAT500-->KPA500.  Got the flashlight out, looked behind the rig,
> and that's how it seems to be.  I've got this different USB thingy by
> the laptop that I now know goes to the KAT500 for FW updates.

Exactly.  The ACTIVE use of the serial connection is between P3 and K3
so that the P3 knows frequency, and between the K3 and the computer for
logging and control.  That's the only connection that most of us leave
in place.

The only need for serial to the KAT500 and KPA500 are for occasional
firmware updates, which, as has been noted, don't come very often. So
every 6-9 months I fire up the K3, P3, KPA, and KAT utilities, check for
firmware, load them into K3 and P3 with the routine serial connection,
and then use another serial cable to to update KAT and/or KPA when needed.

73, Jim K9YC
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