[Elecraft] Morse code for "@" (prosign 'AC') -- radio interview

[Mike S]

At 10:05 PM 2/23/2004, KI7V wrote...
>It appears to me that just sending the word "AT" is faster than sending the
>new @ character(.--.-.).  I question if this is an advancement to the morse
>character set.

AT is ambiguous. Quick, what's this email address: PATHATATFLATCAT.COM?

To avoid ambiguity, you would need to send an additional two word spaces plus a letter space, so where /AC takes 23 dot times to send, sending _AT_ would take 25 (counting before and after spacing. (dot=1, dash=3, intracharacter space = 1, letter space = 3, word space =7)

/AC = 3113131113113 = 23
_AT_ = 7113337 = 25

Mike