User manual

7.2.1 BAUDOT/ASCII Configuration
Baudot or ASCII modes of operation require very similar setup.
For Baudot mode, enter “BAU” at the command prompt of the
NEWTOR program. For ASCII, enter “ASC”. In addition, it is
convenient to initialize the following settings as well.
• DAT/TIM - Sets Date and Time
• DID - Diddle on or off.
• TXT/RXR - Sets transmit and receive polarities.
7.2.2 AMTOR Configuration
AMTOR operation is selected by entering AMT at the NEWTOR
program’s prompt. AMTOR uses the high-tone pair (2125/2295
Hz); and uses 170 Hz shift FSK.
TOR modes require valid SELCAL and answerback strings prior
to starting any ARQ calls. Other parameters such as the transmit
and control delay may also need adjustment, however, the defaults
should be workable for most modern radios.
Note that the SG-7200 immediately goes into standby mode when
the AMT or SIT commands are issued at the command prompt. In
this state the unit is ready to respond to any ARQ calls directed to
it. It will also automatically print any FEC traffic (unless the FEC
flag is disabled). The unit may be left in this mode indefinitely for
monitoring calls or FEC traffic. Otherwise, the unit may be com-
manded to initiate an ARQ call or FEC broadcast, or to decode
ARQ traffic in “listen” mode.
The following commands can be used to control the SG-7200 in
this mode.
• MYSELCAL – AMTOR Selcal
• DAT / TIM - Date and Time
• AMT or SIT- AMTOR or SITOR mode
• ALI - Initiate Listen mode
• FEC - Initiate forward error correcting code
• ARQ - Initiate ARQ
In order to communicate data, keyboard mode must be entered
using the “K” command. In this mode, characters entered at the
keyboard will be submitted for transmission, and also decoded
data from being received will be printed. Keyboard mode may be
exited using the ESC key and re-entered as many times as needed.
7.2.3. TOR 625 Commercial Maritime Mobile (SITOR)
This mode is entered by starting the TOR program. When in this
mode, the SG-7200 is designed to operate in a Maritime Mobile
traffic-handling environment. This mode differs from the TOR 476
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