ICOM 283300 Manuale Utente

33

9

SUBAUDIBLE TONES

Separate tone frequencies can be set for tone squelch oper-
ation rather than repeater operation (the same range of tones
is available— see right below). Like the repeater tones, these
are set in 

SET MODE

.

q Select VFO or memory channel.
w Push 

, then push 

to enter 

SET MODE

.

e Push 

Y

Y

or 

Z

Z

several times until “Ct” appears when se-

lecting CTCSS, or “dt” appears when selecting DTCS.

• “ ” blinks when selecting CTCSS, or “ ” blinks when selecting

DTCS.

r Rotate 

to select the desired subaudible tone.

t Push 

✱

(or 

) to program the selected tone

and exit 

SET MODE

.

y Push 

, then push 

for 1 sec. to transfer the

contents to VFO.

• 3 beeps are emitted. 
• VFO mode is selected automatically. 

u Push 

, then push 

for 1 sec. 

• 3 beeps are emitted.

Steps y and u are necessary when overwriting the memory
contents permanently. The set tone frequency is used for
temporary operation only, therefore, these steps are not nec-
essary. 

(unit: Hz)

67.0
69.3
71.9
74.4
77.0

85.4
88.5
91.5
94.8
97.4

100.0
103.5

79.7
82.5

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

D