[Elecraft] K3 Digital modes

Joe Subich, W4TV lists at subich.com
Fri Sep 27 09:02:28 EDT 2013


> It has worked so well that I haven't had the urge to make a new cable
> to connect my SignaLink USB's keying output to the rig. YMMV

Signalink USB does not have a USB keying output - its PTT is derived
via VOX built into the device.

73,

    ... Joe, W4TV


On 9/27/2013 12:34 AM, Bill Frantz wrote:
> I have been operating my K3 mostly in digital mode for about 3 years. I
> use the VOX to key the rig. It has worked so well that I haven't had the
> urge to make a new cable to connect my SignaLink USB's keying output to
> the rig. YMMV
>
> Note that all the digital modes I know of only vary the frequency of the
> modulation and not the amplitude. If there are modes that vary the
> amplitude, then separate keying my be needed.
>
> Cheers - Bill, AE6JV
>
>
> On 9/26/13 at 6:19 PM, k3elecraft at gmail.com (Greg KA2COP) wrote:
>
>> As far as keying the transmit or PTT I'm not quite sure how this is
>> accomplished.  I see there is a KUSB cable to connect the K3 to the
>> computer with FTDI chipset and drivers.  Can PTT be handled by the USB
>> cable?
>
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