[Elecraft] K3 port sharing and FT-8

[Don Wilhelm]

Rick and all,

You did not mention the "NO ALC" point for Elecraft gear.
The ALC scale on the K3/K3S/KX3/KX2 gives you the ability to adjust the 
audio level (the lower bars are NOT an indication of ALC).
ALC begins at the 5th bar.
Those Elecraft radios must be have the audio level adjusted so there are 
4 bars solid with the 5th bar flashing.  The Elecraft radios must not 
use the audio level to control power - other radios may use that method, 
but not Elecraft.

If you want full information about that (and the related Elecraft power 
control), refer to the article on my website www.w3fpr.com.  Scroll to 
the last link in the left column and click to open the link.

73,
Don W3FPR

On 6/11/2019 8:42 PM, Rick WA6NHC wrote:
> 
> On 6/11/2019 4:19 PM, Jim Brown wrote:
>>
>>> Fox and Hound certainly "requires" it.
>>
>> No,  it does NOT. The frequency shifting can all be done with audio if 
>> WSJT-X is set up for no CAT control!
>>
> 
> At the risk of transmitting harmonics as well as the principle audio...
> 
> Plus not all sound card responses are 'flat' so the levels, if outside 
> the tested range (say 1500 Hz +/- 500 Hz) vary much, it may be too loud 
> (overdriving) or soft.
> 
> A simple test, into a dummy load, set your audio tone for a lower tone, 
> watch the output, repeat with a mid-range tone and a higher pitched 
> tone.  If you don't have to readjust the audio drive to the radio (while 
> keeping NO ALC), you're fine.  If you do have change levels, use the 
> frequency shifting of WSJT-X to stay within the same range.
> 
> Sometimes cheap audio, is REALLY cheap audio.
> 
> Rick nhc
> 
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