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D D Display dimmer
Adjust the display lighting condition.
The levels 1 (dark) to 8 (bright: default) are available.
D D Display color
The display color can be set to amber (default), yellow or
green.
D D Display contrast
The LCD contrast can be adjusted through 9 levels.
D D Tone frequency
Sets subaudible tone frequency for tone squelch operation.
Total of 50 tone frequencies (67.0–254.1 Hz) are available.
• Available tone frequency list
67.0
79.7
097.4
118.8
146.2
69.3
82.5
100.0
123.0
151.4
71.0
85.4
103.5
127.3
156.7
71.9
88.5
107.2
131.8
159.8
74.4
91.5
110.9
136.5
162.2
77.0
94.8
114.8
141.3
165.5
8
SET MODE
(default: 88.5 Hz)
167.9
186.2
206.5
241.8
171.3
189.9
210.7
250.3
173.8
192.8
218.1
254.1
177.3
196.6
225.7
179.9
199.5
229.1
183.5
203.5
233.6
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