[Elecraft] cables for digital/dayton

[Tom Azlin N4ZPT]

Nope is my answer. I got several of those iPhone and video cables from 
different vendors and they are all whacky. so I am guessing that all the 
video/audio cables with the TRRS connector are wired the same way. Could 
not find a single cable with sleeve as ground for the three cables that 
connect to tip and the two rings.

I have yet to find what I think is a "nice" right angle 3.5 mm TRRS 
plug. did get several with a clip on plastic cover that will not stay 
straight. Also on my SignaLink I put in a small DPDT switch that I used 
to turn on or off the PTT ( and for switching between 1200 and 9600 bps 
packet lines) so just put that in the PTT circuit and turned it off. On 
my simply interface I just did not connect the two PTT lines and use the 
USB to KX3 cable to control the KX3 via CAT.

73, tom n4zpt



On 5/23/2012 6:39 AM, Robert Galambos wrote:
> Bob
>
> This is forwarded to the list as it was only sent to me, and I do not
> have an answer. Maybe someone else does on the list
>
>
>
> Sent from my iPad
>
> On 2012-05-22, at 23:52, Bob<WB4SON at gmail.com>  wrote:
>
>> Has anyone found a 3.5mm 4-conductor cable with shield in what I
>> would call a traditional location -- the Sleve?  It seems like the
>> iPhone and Video cables put the shield on Ring 2.  I have some bare
>> connectors, but figured it would be easier to cut an existing cable
>> apart and solder/heat shrink that to the SignaLink cable, than try
>> and solder the connector on.
>>
>> Tigertronics had first article cables for the KX3, but they were
>> not right-angle, so they have redone them and say they will be out
>> later this summer.  It is suggested that a 47uF 16V cap be put in
>> series with the mic line to block the DC bias from the KX3 (in case
>> you forget to turn it off -- which I am likly to do).  Put the +
>> end toward the KX3 line and the - end toward the SignaLink.
>>
>> Until then I've got the smallest tip I could find for my Weller
>> iron lots of tiny heat-shrink and four connectors -- hopefully one
>> of them will make it 'alive'