Plug wiring for Model CMOS-4 Keyer

classic Classic list List threaded Threaded
3 messages Options
Reply | Threaded
Open this post in threaded view
|

Plug wiring for Model CMOS-4 Keyer

Gary H Evans
I would like to use my CMOS-4 keyer with my KX1. Can anyone help with the wiring of the cable between the keyer and the KX1? Thanks...Gary - AA6R
_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

Reply | Threaded
Open this post in threaded view
|

Re: Plug wiring for Model CMOS-4 Keyer

Rob Locher W7GH
Hi Gary,

Sorry for the delayed response to your question.  I was away from email  
for a long weekend (hooray!).  I don't have a KX1, so I don't know  
exactly, but I do have a CMOS-4 (and an Elecraft K2).  The CMOS-4 uses an  
RCA jack for the key output.  To interface my K2 to my CMOS-4 keyer, I  
took an RCA patch cable, cut off the RCA connector on the end, and  
soldered a 1/8" stereo plug instead.  Of course the cable ground shield  
should be connected to the RCA ground shield on one end and the stereo  
ground shield on the other.  I can't recall if the inner connector from  
the RCA plug should be connected to the tip or the ring of the stereo  
plug, but I suspect it doesn't matter.

73,
- Rob W7GH
K2 #5004



On Sat, 25 Mar 2006 14:03:27 -0800, Gary H Evans  
<[hidden email]> wrote:

> I would like to use my CMOS-4 keyer with my KX1. Can anyone help with  
> the wiring of the cable between the keyer and the KX1? Thanks...Gary -  
> AA6R

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

Reply | Threaded
Open this post in threaded view
|

Re: Plug wiring for Model CMOS-4 Keyer

geoff allsup
Hi Gary

Even easier  - I use a regular RCA patch cable (came with my keyer
anyway) and a Radio Shack RCA to 1/8" stereo adapter (don't have RS #)
with my CMOS-4.  The adapter takes RCA center conductor to both tip and
ring.  Works with my KX1 and FT-897.    Handy, and, with no cutting and
soldering to one of those nasty 1/8" stereo plugs which always seem to
be chrome-plated and tough to solder, probably more reliable too!

73,
geoff - W1OH


Rob Locher W7GH wrote:

> Hi Gary,
>
> Sorry for the delayed response to your question.  I was away from email  
> for a long weekend (hooray!).  I don't have a KX1, so I don't know  
> exactly, but I do have a CMOS-4 (and an Elecraft K2).  The CMOS-4 uses
> an  RCA jack for the key output.  To interface my K2 to my CMOS-4 keyer,
> I  took an RCA patch cable, cut off the RCA connector on the end, and  
> soldered a 1/8" stereo plug instead.  Of course the cable ground shield  
> should be connected to the RCA ground shield on one end and the stereo  
> ground shield on the other.  I can't recall if the inner connector from  
> the RCA plug should be connected to the tip or the ring of the stereo  
> plug, but I suspect it doesn't matter.
>
> 73,
> - Rob W7GH
> K2 #5004
>
>
>
> On Sat, 25 Mar 2006 14:03:27 -0800, Gary H Evans  
> <[hidden email]> wrote:
>
>> I would like to use my CMOS-4 keyer with my KX1. Can anyone help with  
>> the wiring of the cable between the keyer and the KX1? Thanks...Gary
>> -  AA6R
>
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft   
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>


--
*************************************************************
Geoff Allsup, W1OH     [hidden email]  or  [hidden email]
Research Engineer              Upper Ocean Processes Group
Woods Hole Oceanographic Institution   Woods Hole, MA, USA
*************************************************************

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com