Retevis RB647 Bedienungsanleitung Seite 8

TOT
TOT aims at preventing the two way radio from transmitting for a long time. The
time of TOT can be set through the programming software (30s, 60s, ..., 300s;
every level step is 30s). Transmit continuously to the set TOT time, the two way
radio will stop transmitting and makes a warning sound. Release the PTT key
and then press it again to restore transmitting.
CTCSS/DCS
The two way radio has 50CTCSS and 208DCS to select. In addition, the
non-standard CTCSS range 30.0-260Hz and the non-standard DCS range
D000-D777 can be set (through the programming software).
DCS/DQT has two types: common code and special code. Special code is only
effective to set CTCSS to the channel (setting the CTCSS or don not set
CTCSS/DCS to the channel is ineffective).
Common code refers to the DQT on the channel is the common code, it can
communicate with the two way radio set the same DQT.
Special code mode
Special code refers to the DQT on the channel is the specially processed code.
Only when the company's two way radio is set to the DQT, and the special
signaling is set at the same time, two way radios can communicate normally. The
special signaling with the same setting on the two way radio of other companies
cannot communicate.
Companding
You can choose Yes or No to turn on or off companding function through the
programming software (To ensure the sound quality, suggest turning off scramble
while turning on companding).
Scramble
You can choose Yes or No to turn on or off scramble function through the
programming software (To ensure the sound quality, suggest turning off
companding while turning on scramble).
CTCSS (50 Numbers)
67
79.7
94.8
110.9
131.8
156.7
171.3
186.2
203.5
229.1
69.3 71.9
82.5 85.4
97.4 100
114.8 118.8
141.3
136.5
159.8 162.2
173.8 177.3
192.8
189.9
206.5 210.7
233.6 241.8
74.4
88.5
103.5
123
146.2
165.5
179.9
196.6
218.1
250.3
05
77
91.5
107.2
127.3
151.4
167.9
183.5
199.5
225.7
254.1