[Elecraft] [KPOD] Re: Now that the K-Pod is shipping, (longer RJ12 cable)
Clay Autery
cautery at montac.com
Sat Jul 16 20:51:54 EDT 2016
RR.... thanks... think I've established that they are using flat
ribbon 6-conductor cable with the "old" color scheme, parallel,
non-twisted...
And yes, all my experience says that:
1) using PROPERLY constructed twisted-pair cable choosing the correct
pairs (use 3 of 4 pair on CAT-5/6/7 wire, will yield a much more robust
standard length cable... and
2) significantly extended cable will likely REQUIRE some form of twisted
pairing, and perhaps even some additional "tricks" like 1 ground (Vss)
per signal, etc, etc... and perhaps even an STP with the shield bonded
to the chassis on the K-pod and K3(s) etc...
I don't KNOW any of this... But all of my experience leads me to think
in this direction.
Granted, at the moment it is a solution in search of a problem. ;-)
73,
______________________
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389
On 7/16/2016 7:35 PM, Don Wilhelm wrote:
> Clay,
>
> The cable is 5 (active) parallel wires, no twisted pairs.
> Yes, you can probably construct a cable with twisted pairs that would
> work well over a much greater distance, but that is only a guess at
> this point.
> Why not give it a try and report your results.
>
> 73,
> Don W3FPR
>
> On 7/16/2016 8:13 PM, Clay Autery wrote:
>> Thanks Ron...
>>
>> I know it is straight through, but the color codes on the shipping cable
>> are key to my research/testing so I can determine:
>>
>> 1) Which signals are paired/not paired, and
>>
>> 2) Which pair signals are on (due to the differing twist rate on each
>> pair).
>>
>> If the shipping cable isn't using twisted pair, I would be even more
>> interested in doing some testing...
>>
>>
>
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