[Elecraft] K3 and FLDigi

[Ken]

Jim,

I don’t think I gave bad advice, I said I wasn’t sure about RTTY, right?   That’s an invitation for someone more knowledgeable to jump in.

But as you point out, RTTY is different from the other data modes, which use USB (actually DATA on the Upper Sideband).  

While factory defaults may be right on the K3, since it stores last used, it is often very easy to get it changed and not realize it.   I know I had problems with a single band in digital and it turned out that that particular band was using the wrong sideband presumably due to my changing it at some point in the past.

Also there is the issue with is the person using direct keying or AFSK which are different settings.   fldigi would probably be using audio tones not direct keying although I think that’s possible.   I am not an RTTY operator.

Some digital modes operate upper or lower but I believe some must be upper.  I think this is addressed on W1HKJ’s website.

Ken WA8JXM

> On Feb 25, 2015, at 10:20 AM, Jim's Desktop <w0eb at cox.net> wrote:
> 
> Ken,
> You've given some bad advice.  Having been on RTTY from 1963 through present with machines as well as computers now, the convention for RTTY has ALWAYS been LSB no matter which band you're on and the K3 treats it that way.  Not all multi mode programs do it right though as apparently the programmer didn't thoroughly check the convention for the different modes.  PSK-31 works no matter which sideband you use but I don't know about the other modes such as PSK-63, Olivia, etc., as I never use them.
> 
> Jim - W0EB