User guide

MS-DMT Guide v1.04

Released 05-30-2014

 The software is compatible with MIL-STD-188-110A hardware modem SYNC (EOM

enabled or disabled) or ASYNC (EOM enabled) modes in support of FEC based ASCII

dumb terminal messaging using the internal terminal.

 Also provided is SYNC with EOM enabled for transparent operation via the Data Port for

external applications use for Binary, ASCII or Binary/ASCII data streams.

 Modem receiver reset is provided via either or combination or EOM sequence, Flush

Null Character and Reset on 100 errors per unknown data.

 Exceeds MIL-STD-188-110A modem receiver error handling of +/-75Hz for all data rates.

Meets Doppler spread of 3.5Hz/sec slope at 75bps but not yet at the higher data rates.

 Meets MIL-STD SNR AWGN 3kHz channel with multipath delay and fading parameters

and doppler spread (but not slope rate aside from 75bps).

 At present all messages are sent from the terminal via keyboard entry or by pasting

only.

 RTS or DTR is supported for hardware PTT where RTS is the default.

 RS-232 D.C. Power from DTR or RTS on which ever line is not selected for PTT.

 CAT control is provided for a wide range of radios in support of CAT PTT.

 Selectable RS232 RTS or DTR PTT, CAT PTT, both RS232 & CAT PTT or EXTERNAL PTT

sources are user selectable.

 CAT control us provided for automatic DATA/VOICE switching between MIC and DATA

ports is provided in support of all radio models where required.