Yaesu FT-50, Инструкция по эксплуатации

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Tone/Code Scanning
When using CTCSS tone squelch required)
or DCS, you can have the radio scan through the
tones or codes to determine which one is present on
a received signal. Before tone scanning, either tone
squelch or DCS must be activated (press
as
necessary until either or is displayed).
Press to display the CTCSS tone fre-
quency or DCS tone
code
at the right.
Press and hold for second to start scanning
for a matching tone or code.
Scanning slows when a signal is present, and
pauses and blinks when the matching tone/code is
found. To accept the displayed tone frequency or
code for operation and return to the operating dis-
play, press twice, momentarily.
Busy Channel Lock-Out
73
To prevent transmitting on top of other stations, you
can prevent the transmitter from operating whenever
a signal is present. To turn on BCLO:
Hold the knob down for second, then turn it to
display
.
Press the knob momentarily, then turn it to select
Press the PT I’ to exit.
BCLO may cause problems with repeaters
that require response before the carrier drops.
. . . .
DTMF Code Squelch/Paging Modes
DTMF (Dual-Tone, Multi-Frequency) encoding and
decoding allow paging and selective calling using
codes transmitted as DTMF sequences. Your
receiver remains silent until it receives three DTMF
digits that match/ those stored in a dedicated code
memory. The squelch then opens so the caller is
heard, and, in the paging modes, an alert ringer
sounds.
Note requires optional keypad.
Introduction to DTMF Code Squelch
With code squelch, both stations use the same
digit DTMF code, sent automatically each time you
transmit. The 999 code combinations give an added
degree of privacy over CTCSS, and works
hand with the DTMF paging schemes, covered later.
After you and the other station have agreed upon a
DTMF code, you need to store this in a private
code memory:
Press so the display appears as below,
turn the knob (if needed) to select code memory .
Use the keypad to enter a three-digit code, and
press the to save the code and exit.