[RTTY] The RTTY efficiency myth and SUPERFILL

[Bill Turner]

ORIGINAL MESSAGE:          (may be snipped)

On 7/17/2014 4:25 AM, john at kk9a.com wrote:
> I would eliminate sending the callsign of
> the station that you are working.  Sending P40X before TU W6SX serves no
> purpose in this example. P40X knows that he is working you and is just
> waiting for some indication that you copied his report before spinning the
> VFO.

REPLY:

I disagree. Sending the other guy's callsign can help in situations of 
QRM or QRN where there are two stations that both think you are working 
them. Often neither one of them can hear the other. It happens more than 
you might think. Sending only TU W6SX will cause both of them to log you 
but one of them will be NIL. Sending P40X TU W6SX CQ reduces the 
possible confusion.

73, Bill W6WRT