[Elecraft] K3 and JT65

Don Wilhelm donwilh at embarqmail.com
Tue Feb 21 18:48:03 EST 2017


Jorge,

JT65 is "just another data mode", and like other data modes, you must 
drive the K3 audio up until you have 4 bars solid on the ALC meter with 
the 5th bar flashing.
Adjust the computer soundcard output and the K3 LINE IN Gain to achieve 
that condition.  You do not have to transmit while making that 
adjustment, set the K3 to TX TEST or turn the power to zero.

Then adjust your desired power level with the power knob.

I know this differs from the common internet (and some software 
instructions) which say to set the power to full and use the audio level 
to control the power.  That advice is for rigs other than Elecraft.
That does not work with the K3 (or other Elecraft rigs).
Elecraft controls the power differently than other transceivers - the 
firmware adjusts to the power set with the power knob rather than merely 
controlling the drive with a knob.

73,
Don W3FPR

On 2/21/2017 6:36 PM, Jorge Diez - CX6VM wrote:
> Hello
>
> I am trying JT65. Two audio cables from LINE IN and OUT in the K3 to phones
> and mic in the computer
>
> I can see decoding on the software, but I cannot get RF out. The K3 go to
> TX, but I think is not sending RF. I increase RF while TX and I dont see RF
> out on the K3 smeter
>


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