User manual

mand is 0. This value is loaded each time the program is started or
at any time the value is changed.
15.4 Set TNC Parameters F7
The TNC parameters control the timing and general characteristics of
the SG-7200. These parameters are loaded each time the program is
started. If you make a change and wish to revert to the last settings,
press the Cancel key.
15.4.1 AAB WRU Text On
This parameter controls the TNCs response to the CTRL-E charac-
ter used in AMTOR to request the AAB (auto-answerback) text.
When this flag is checked the TNC will report the AAB text when
the CTRL-E character is received, when this occurs the TNC will
seize the link, send the AAB text and return to receive mode.
When this parameter is un-checked the CTRL-E character will be
ignored.
15.4.2 RTTY Diddle On
This parameters controls the RTTY diddle feature in the SG-7200.
When the parameter is checked the TNC will alternate between the
Mark and Space signals when no data is present in the transmit
buffer and the TNC is in transmit mode. The default for this
option is On.
15.4.3 Reverse Receive Tone On
This option controls the received Mark/Space polarity. This has
the same effect as changing the radio between upper sideband and
lower sideband. The default for this option is Off. It is also avail-
able on the program toolbar.
15.4.4 Reverse Transmit Tone On
This option controls the transmitted Mark/Space polarity. This has
the same effect as changing the radio between upper sideband and
lower sideband. The default for this option is Off. It is also avail-
able on the program’s toolbar.
15.4.5 Unshift On Space On
This option controls whether the TNC reverts to Letter case when
a space character is encountered in RTTY mode. The default for
this parameter is On.
15.4.6 AMTOR Control Delay
This parameter sets the control timing in AMTOR mode. The
45
© 1999 SGC Inc
SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA
P.O.Box 3526, 98009 Fax: [phone] or 746-7173 Tel: [phone] or 1-800-259 7331
E-mail: [e-mail] Web site: http://www.sgcworld.com