24
MDS 4710B/9710B I/O Guide
MDS 05-3316A01, Rev. E
DKEY
This command deactivates the transmitter after it has been keyed with
the
KEY
command.
DP
The
DP
(decrement power) command is a local maintenance command
that decreases the transmit power by 1% of the adjustable range. This is
a temporary setting until the
RMST
command is used to store the com-
mand.
DSTE
This command disables the radio’s squelch tail eliminator (STE) circuit
and is only applicable when the
MODEM
command is set to
BELL
. The
squelch tail eliminator mutes the noise burst at the end of a transmit
cycle which prevents the master station receiver from receiving the burst
of noise as the squelch closes. The squelch-tail eliminator adds 5 ms to
the transmission time. To enable the squelch tail eliminator use the
ESTE
command. Use the
STE
command to determine if the squelch tail elimi-
nator is ON (enabled) or OFF (disabled). If the remote radio has
STE
ON
,
the master station receiver(s) must also have the
STE
set to
ON
.
DUMP
This command displays all the programmed settings with this one com-
mand. The HHT display is too small to list all the command settings at
one time. Therefore, this command is most useful if the command is
issued from a computer or full-screen terminal.
EMP [ON, OFF]
This command sets and displays whether the emphasis and de-emphasis
of the analog input and output signals is enabled.
ON
indicates that
emphasis and de-emphasis is enabled and
OFF
indicates that emphasis
and de-emphasis is disabled.
Emphasis is a function used in older analog radios where the modulating
signal is increased (at the transmitter) at the higher frequencies to
increase system performance. De-emphasis compensates (at the
receiver) for a signal that has had emphasis applied.
Emphasis and de-emphasis functions should not be enabled except
when compatibility with older MDS analog radios is required.
ESTE
This command enables the radio’s squelch tail eliminator (STE) circuit
and is only applicable when the
MODEM
command is set to
BELL
. The
squelch tail eliminator mutes the noise burst at the end of a transmit
cycle which prevents the master station receiver from receiving the burst
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