Motorola MSF 5000 Instruction Manual page 61

MSF
5000
Instruction Manual
Chapter 1
Description
TTRC
Functional Description
In
a
wireline
PTT
function, audio
to be transmitted is summed
with
the
LLGT
signal. The
LLGT
is notched out at the station
to
prevent it from being
transmitted. Average audio is
typically
6
dB below the
HLGT
and max peak audio
is
typically
no greater than
6
dB above the
HLGT.
The station remains keyed
when
the
LLGT
is present.
Once
the
LLGT
is no
longer detected,
the station
dekeys.
Other FTs
are
available
to
perform various functions. These FTs
are
programmed
via RSS.
Table
1-5
provides
a
list of
TRC
tones and their defaults. The
RSS
can
program any
FT
to
any command. Refer to the
RSS manual for additional
information.
Table 1-5
TRC
Tone
Frequencies and Defaults
Tone Frequency
Tone
#
Default
Description
2175 FO
MORE
Reset function tone buffer and look for
more functions.
2050
Fl
MON
Monitor channel. Disables receiver
PPL
until
next key.
1950
F2
CHN
1;
KEY
Select channel
01,
key
transmitter
until
LLGT
is removed.
1850
F3 CHIN
2;
KEY
Select channel
02,
key
transmitter until
LLGT
is removed.
1750
F4
1650
F5
1550
F6
1450
F7
1350
F8
CHN
3;
KEY
Select channel
03,
key
transmitter until
LLGT
is removed.
1250
F9
CHN
4;
KEY
Select channel
04, key
transmitter until
LLGT
is removed.
1150
F10
MORE
Reset function tone buffer and look for
more fctions.
1050
Fil
MORE
Reset function tone buffer and look for
more functions.
950
F12
850
F13
750
Fl4
650
F15
68P81092E02
3/19/94
1-23
MSF
5000
Instruction Manual
Chapter 1
Description
TTRC
Functional Description
In
a
wireline
PTT
function, audio
to be transmitted is summed
with
the
LLGT
signal. The
LLGT
is notched out at the station
to
prevent it from being
transmitted. Average audio is
typically
6
dB below the
HLGT
and max peak audio
is
typically
no greater than
6
dB above the
HLGT.
The station remains keyed
when
the
LLGT
is present.
Once
the
LLGT
is no
longer detected,
the station
dekeys.
Other FTs
are
available
to
perform various functions. These FTs
are
programmed
via RSS.
Table
1-5
provides
a
list of
TRC
tones and their defaults. The
RSS
can
program any
FT
to
any command. Refer to the
RSS manual for additional
information.
Table 1-5
TRC
Tone
Frequencies and Defaults
Tone Frequency
Tone
#
Default
Description
2175 FO
MORE
Reset function tone buffer and look for
more functions.
2050
Fl
MON
Monitor channel. Disables receiver
PPL
until
next key.
1950
F2
CHN
1;
KEY
Select channel
01,
key
transmitter
until
LLGT
is removed.
1850
F3 CHIN
2;
KEY
Select channel
02,
key
transmitter until
LLGT
is removed.
1750
F4
1650
F5
1550
F6
1450
F7
1350
F8
CHN
3;
KEY
Select channel
03,
key
transmitter until
LLGT
is removed.
1250
F9
CHN
4;
KEY
Select channel
04, key
transmitter until
LLGT
is removed.
1150
F10
MORE
Reset function tone buffer and look for
more fctions.
1050
Fil
MORE
Reset function tone buffer and look for
more functions.
950
F12
850
F13
750
Fl4
650
F15
68P81092E02
3/19/94
1-23