[Elecraft] K3: Audio Level Ramp-Up in DATA-A
Don Wilhelm
w3fpr at embarqmail.com
Sat Mar 3 14:50:31 EST 2012
Ed,
Are you driving the audio to give you 4 bars solid and the 5th blinking
on the ALC meter?
The behavior you are seeing is normal if you do not have enough audio.
The lower 4 bars of the ALC meter do not indicate ALC, they are similar
to a VU meter.
The 5th bar indicates the onset of ALC.
73,
Don W3FPR
On 3/3/2012 2:14 PM, Edward R. Cole 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
> ======================================
> BP40IQ 500 KHz - 10-GHz www.kl7uw.com
> EME: 50-1.1kw?, 144-1.4kw, 432-QRT, 1296-?, 3400-?
> DUBUS Magazine USA Rep dubususa at gmail.com
> "Kits made by KL7UW" http://www.kl7uw.com/kits.htm
> ======================================
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
More information about the Elecraft
mailing list