Ctcss Tone / Dcs Code Operation - TYT TH-7800 User Manual

CTCSS Tone / DCS Code Operation

CTCSS setup involves two actions: setting the Tone Mode and Tone Frequency by using the Menu # 31 (TONE M) and
# 30 (TONE F).
1. Short press the [SET] key to enter the Menu mode.
2. Rotate the "Main" band DIAL to select Menu # 31 (TONE M).
3. Short press the "Main" band DIAL knob, then rotate the "Main" band DIAL and "ENC", "ENC.DEC" will appear on the
display;
ENC: CTCSS Encoder.
ENC.DEC: CTCSS Encoder & Decoder.
Note: you may select the Tone Squelch mode (ENC, ENC.DEC) on the "Main" band by the microphone's [P3] key.
4. When you have made your selection of the CTCSS Tone Mode, short press the "Main" band DIAL knob to confirm, th-
en rotate the "Main" band DIAL to select Menu # 30 (TONE F). This menu is used to set the CTCSS tone frequency.
5. Short press the "Main" band DIAL knob to enable adjustment of the CTCSS frequency.
6. Rotate the "Main" band DIAL until the display indicates the Tone Frequency you need to be using.
7. When you have made your selection, short press the [SET] key to save the new setting and exit to normal operation.
50 groups of Standard CTCSS Tone Frequency (Hz)
67.0 69.3 71.9
85.4 88.5 91.5
107.2 110.9 114.8
136.5 141.3 146.2
165.5 167.9 171.3
186.2 189.9 192.8
210.7 218.1 225.7
254.1 - -
25
74.4 77.0 79.7 82.5
94.8 97.4 100.0 103.5
118.8 123.0 127.3 131.8
151.4 156.7 159.8 162.2
173.8 177.3 179.9 183.5
196.6 199.5 203.5 206.5
229.1 233.6 241.8 250.3
- - - -
Just as in CTCSS operation, DCS requires that you set the Tone Mode to DCS and then select a code.
1. Short press the [SET] key to enter the Menu mode.
2. Rotate the "Main" band DIAL to select Menu # 31 (TONE M).
3. Short press the "Main" band DIAL knob, then rotate the "Main" band DIAL and "DCS" will appear on the display;
DCS: Digital Code Squelch Encoder & Decoder.
Note: you may select the Tone Squelch mode (DCS) on the "Main" band by the microphone's [P3] key.
4. When you have made your selection of the DCS code Mode, short press the "Main" band DIAL knob to confirm, then
rotate the "Main" band DIAL to select Menu # 7 (DCS.COD). This menu is used to set the DCS code.
5. Short press the "Main" band DIAL to enable adjustment of the DCS code.
6. Rotate the "Main" band DIAL to select the desired DCS code.
7. When you have made your selection, short press the [SET] key to save the new setting and exit to normal operation.
Note: The DCS is an Encoder/Decoder system, so your receiver will remain muted until a matching DCS code is received
on an incoming transmission.
104 groups of Standard DCS Code Number
023 025 026 031 032
071 072 073 074 114
143 145 152 155 156
225 226 243 244 245
266 271 274 306 311
356 364 365 371 411
452 454 455 462 464
532 546 565 606 612
703 712 723 731 732
036 043 047 051 053 054 065
115 116 122 125 131 132 134
162 165 172 174 205 212 223
246 251 252 255 261 263 265
315 325 331 332 343 346 351
412 413 423 431 432 445 446
465 466 503 506 516 523 526
624 627 631 632 654 662 664
734 743 754 - - - -
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