Receiving Morse operators may also encounter incorrectly formed ( non-concatenated ) prosign symbols sent by keyboard Morse operators.
12.
The prosign may be interpreted in English as, this station will be " " silencing key " ".
13.
Note in Part A that the sending operator precedes the message text with the " Attention, Copy This " prosign.
14.
SOS is not three separate characters, rather, it is a prosign SOS, and is keyed without gaps between characters.
15.
The grouping being the traditional, and most common, way of writing down or illustrating the formation of this unique prosign.
16.
The symbol for the alphabetic character K is interpreted as a prosign only when sent alone, at the end of a transmission.
17.
Each line of the address information is separated from the others by a one line space indicated by the new line prosign symbols.
18.
Finally the signature line " PETE " is separated from the main body of the text by two lines indicated by another prosign.
19.
This abbreviated silent period blends the separate character symbol sounds, and dot / dash sequences, together uniquely creating the corresponding prosign symbol.
20.
Because of this, Morse operators using modern keyboard operated computer applications often encounter difficulties while attempting to send correctly formed Morse prosign symbols.
