Hi Ed,
1) Make sure you have 4-5 bars on the ALC meter when transmitting your
JT65 signal - insufficient audio drive could lead to the DSP
compensating by adding gain
2) Run through the TX gain calibration (see K3 Owner's Manual)
73,
~iain / N6ML
On Sat, Mar 3, 2012 at 11:14 AM, Edward R. Cole <[email protected]> wrote:
> I'm wondering if there is a way to escape the 4-5 second gradual
> increase (ramp up) of audio drive when in DATA-A mode on the K3? I
> run WSJT on DATA-A and every transmit sequence starts at about 50%
> power out due to the audio drive ramp up. It takes the K3 about 4-5
> seconds to reach full power. This OK when my transmit sequence is 1
> minute long but there is a test mode under WSJT called Echo which
> permits me to measure my own eme echoes. However, Tx/Rx cycle in
> Echo is about 1.5 seconds long and I cannot test at full power. This
> is a fully automated test routine so I can't use CW. The program
> transmits a continuous tone which is the same as key-down on CW, and
> returns a measurement of my Moon echo which is real nice to determine
> system performance.
>
> But I can't use the Echo function with DATA-A on the K3 as it is. I
> wonder why the K3 acts this way in DATA-A? I did not have any issue
> running WSJT test modes with my FT-847.
>
>
> 73, Ed - KL7UW, WD2XSH/45
> ======================================
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> "Kits made by KL7UW" http://www.kl7uw.com/kits.htm
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