Uniden BEARCAT UBC3500XLT User Manual

Page 17

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17

Understanding Scanning

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.

You can search for the following CTCSS frequencies
and 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

332 343 346

351

356

364 365 371

411

412 413

423

431

432 445 446

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