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MARS Feature
When you set CODE RTTY MARS in your KAM several special functions are enabled for RTTY opera-
tion.
A. Typing [Ctrl-G] on the keyboard automatically sends (FIGS)JJJJJSSSSS(LTRS) over the radio.
This is an attention signal.
B. When you first enter the transmit mode (with [Ctrl-C][T]), the KAM will transmit 5 SPACES fol-
lowed by <CR><CR><LF> before any other data.
C. Typing [Ctrl-P] will signify a page break in a long message by transmitting <CR><CR><LF>
<LF><LF>.
D. Typing [Ctrl-Z] will transmit the end-of-rnessage signal as <CR><CR><LF><LF><LF>NNNN
and 12 LTRS shift characters.
In order to fully comply with the MARS RTTY guidelines published in FM 11-490-7, you will need to
set CRADD ON, LFADD ON, AUTOCR 69, AUTOLF OFF, CRSUP OFF and LFSUP OFF.
CRADD ON and LFADD ON causes the KAM to transmit a <CR><CR><LF> whenever you press
the return key on your terminal. AUTOCR 69 causes the KAM to insert a <CR><CR><LF> into
your transmitted text after 69 characters have been received from your terminal without a carriage
return. These commands insure your transmitted data meets the guidelines.
In order to receive exactly what the other station is sending, you will need to set CRSUP OFF and
LFSUP OFF so your KAM does not suppress any carriage return or line feed characters.