Uniden BC246T 사용자 설명서
19
Understanding Scanning
might hear multiple communications at the same time.
The stations might even interfere with each other to the
point where it is impossible to clearly receive any of the
stations. A scanner equipped with CTCSS and DCS (like
your scanner) can code each received frequency with a
specific CTCSS or DCS frequency. Then, when you
receive multiple signals, you only hear the transmission
with the CTCSS or DCS tone you programmed. If you do
not receive the correct tone with a signal, the
scanner’s squelch remains closed and you hear nothing.
The stations might even interfere with each other to the
point where it is impossible to clearly receive any of the
stations. A scanner equipped with CTCSS and DCS (like
your scanner) can code each received frequency with a
specific CTCSS or DCS frequency. Then, when you
receive multiple signals, you only hear the transmission
with the CTCSS or DCS tone you programmed. If you do
not receive the correct tone with a signal, the
scanner’s squelch remains closed and you hear nothing.
Local frequency allocation groups set cooperative
standards to establish the CTCSS and DCS tone for each
transmitter (or repeater).
standards to establish the CTCSS and DCS tone for each
transmitter (or repeater).
You can search for the following CTCSS frequencies and
DCS codes.
DCS codes.
CTCSS Frequencies (Hz)
DCS Codes (Octal)
67.0
69.3 71.9 74.4
77.0
79.7
82.5
85.4 88.5 91.5
94.8
97.4
100.0
103.5 107.2 110.9
114.8
118.8
123.0
127.3 131.8 136.5
141.3
146.2
151.4
156.7 159.8 162.2
165.5
167.9
171.3
173.8 177.3 179.9
183.5
186.2
189.9
192.8 196.6 199.5
203.5
206.5
210.7
218.1 225.7 229.1
233.6
241.8
250.3 254.1
023 025 026
031
032
036 043 047
051 053 054
065
071
072 073 074
114
115
116
122
125
131 132 134
143 145 152
155
156
162 165 172
174 205 212
223
225
226 243 244
245 246 251
252
255
261 263 265
266 271 274
306
311
315 325 331