[RTTY] Cut Numbers Revisited

[Aubrey Mansfield]

Receiving “TOO” instead of “599” is not uncommon. I’ve always thought it was because a SHIFT was lost in either transmission or reception.

If you look at the International Telegraphy Alphabet No. 2 (Baudot-Murray code or ITA2)  you’ll see that the 5 & T are the same, except for the Letters Shift and the Figures Shift. The same goes for 9 & O.  If he was sending you a 599 (which is faster than 5NN in RTTY) the shift was lost and you received a TOO.  The same thing probably happened when he sent OH.  Dropped the Letters Shift on the O and you received a 9.


Aubrey W70LY







On Jan 7, 2014, at 1:12 PM, DickT-W0RAA <dickt at w0raa.com> wrote:

> I had one station in Ohio (I won't give his call) that was sending a report 
> of TOO 9h.  When I asked his State
> he kept repeating 9h.  Finally he sends OHIO.  This was the RTTY RU contest.