Timewave DSP-232, Руководство по эксплуатации

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Chapter 4 Terminal Interfacing
As you skim through the list of commands, you’ll notice that the first few characters in the command are capitalized
and the rest aren’t. The capitalized letters indicate the minimum abbreviation for a command. For example, with the
command DISPlay,
DISP , DISPL , DISPLA and DISPLAY will all be accepted. You can also enter commands
using lowercase, uppercase, or a combination of lowercase and uppercase letters. Most people find it preferable to
enter their commands in lowercase, but for emphasis the commands in this manual are printed in uppercase.
When you change a command’s value, the DSP will let you know a change has been made and the change will be
automatically saved and an appropriate response will be generated. Say you want to enter your callsign. You’d enter
your callsign after the
cmd:
prompt by typing MYCALL [ call ] . If your callsign is WF7A, then this is what you’ll
type:
cmd:
MY WF7A
The DSP’s response will be:
MYcall: was DSP232
MYcall: now WF7A
cmd:
If you turn off or remove the power cord from your DSP, it will still remember the change(s) you’ve made. Also, all
commands that accept values or parameters may be typed without any arguments to check their present setting. For
example, if you enter
EXPERT
after the
cmd:
prompt, you’ll see:
cmd:
EXPERT
cmd: Expert ON
This means that the DSP is currently set to use VHF (or UHF) tone pairs.
If, while changing timing commands and such, you find that you’ve “dug yourself into a hole” and the DSP doesn’t
work as well as it did before, enter
REINIT
—it’ll reinitialize most of the commands to their default settings and
perform a RESTART , but it won’t lose the contents of the MailDrop or NAVTEX message history.
List of General and Terminal Related Commands
Commands are listed alphabetically with their descriptions. Each command entry contains several fields of
information: Command Name, Default Value, Mode(s) in which the command is used, Host mode abbreviation (for
Host mode programmers), and Parameters. The default value is listed first.
5Bit Immediate Command
Host: 5B
5BIT is an immediate command allowing the user to store 5-bit Baudot transmissions received then write a program
to decrypt codes that involve bit inversion or transposition. In 5BIT, a constant of $40 (64 decimal) is added to each
received 5-bit character to make it a printable ASCII character in the range of $40-5F. All characters are treated this
way, including CR, LF, LTRS, and FIGS.
When the user enters 5BIT, the DSP-232 displays “
OPMODE now BAUDOT
”. This is not strictly true; however, the
‘b’ for Baudot will glow in the Mode window.
RXREV, RBAUD, and the MODEM number must be set properly for the monitored transmission. SIGNAL is
helpful in determining whether a transmission is 5-bit and the setting for RBAUD and RXREV, but typing OK after
SIGNAL selects BAUDOT, not 5BIT.
Do not change modes directly between BAUDOT, 5BIT, and 6BIT. Go through some other mode first, such as
Packet. There commands do not function in 5BIT: BITINV, CODE, MARSDISP, TRACE, USOS, WRU, and
XMIT.
6Bit Immediate Command
Host: 6B
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