[Elecraft] RTTY using LSB versus AFSK-A

[Iain MacDonnell - N6ML]

Lyle Johnson wrote:
> In DATA AFSK you can press the PB2 button to toggle the dual passband 
> filter on and off. This will open up your waterfall display when the 
> dual narrow filter is not in use.
> 
> DATA A is also perfectly valid for RTTY operation.

I was also playing the the OK contest last night, and most of the time
ran with a 400Hz filter without the PB2 on, for both run and s&p. RU
might be a different story, as I expect the bands will be crowded. With
PB2 off, you can always open up the "width" control if you're looking
for targets. I set up MMTTY so that it was centered on the same
frequency as the K3's filter when I hit "NORM", so I could get back
there quickly, but found I didn't need to do that.

Other reasons to use AFSK A or DATA A modes include that you'll probably
want to configure those to use line-in with an appropriate level set,
whereas LSB would use a mic or headset, and you want to have
compression, etc, off in DATA mode too.

     ~Iain / N6ML