Frequency Read/Write Encryption; Scrambler Function; Ctcss(50); Dcs(105*2) - Retevis RT48 User Manual

Note: If VOX function is on and the gain is at a high level, and the
activities is also high, then if connect speaker/microphone to the
transceiver, the enlarged receding signal through
speaker/microphone may cause the transceiver start transmitting
automatically.

16. Frequency Read/Write Encryption

Please use programmable software to set this function

17. Scrambler Function

Users can set scrambler function ON/OFF on every working
channel. Scrambler function is one of the ways for information
encryption. Scrambler is to restore the transmission spectrum
through the spectrum to complete the change of the transmission
spectrum, and to restore the signal after receiving it, so that achieve
voice encryption finally. Each channel can select scrambler groups
independently.
18. CTCSS/DCS
Users can set CTCSS/DCS signaling on transceiver channel. Only
when receiving same CTCSS/DCS signaling from other transceiver,
the squelch will open. If same channels but with different
CTCSS/DCS signaling for calling, then squelch will not open, only
green light is on. CTCSS/DCS codes are listed below:
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67.0 69.3 71.9 74.4 77.0
94.8 97.4 100.0 103.5 107.2
131.8 136.5 141.3 146.2 151.4
171.3 173.8 177.3 179.9 183.5
203.5
206.5 210.7 218.1 225.7
D025N
D023N D026N D031N D032N
D054N D065N D071N D072N D073N
D125N D131N D132N D134N D143N
D172N D212N
D165N D174N D205N
D246N
D245N D251N D252N D255N
D274N D306N D311N D315N D325N
D356N D364N D365N D371N D411N
D446N D455N
D445N D452N D454N
D516N
D506N D523N D526N D532N
D627N D631N D632N D645N D654N
D731N D732N D734N D743N D754N
CTCSS (50)
79.7 82.5 85.4 88.5 91.5
110.9 114.8 118.8 123.0 127.3
156.7 159.8 162.2 165.5 167.9
186.2 189.9 192.8 196.6 199.5
229.1 233.6 241.8 250.3 254.1
DCS (105*2)
D036N D043N D047N D051N D053N
D074N D114N D115N D116N D122N
D145N D152N D155N D156N D162N
D223N D225N D226N D243N D244N
D261N D263N D265N D266N D271N
D331N D332N D343N D346N D351N
D412N D413N D423N D431N D432N
D462N
D464N D465N D466N D503N
D546N D565N D606N D612N D624N
D662N D664N D703N D712N D723N
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