Icom IC-446S, Instruction Manual

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6
GROUP MODE (CTCSS)
13
D
CTCSS code table
✔
Talk Range
The IC-446S is designed to maximize performance and im-
prove transmission range in the field. However, the single
most important factor in transmit range (talk power) is your
surrounding environment. These radios are “line of sight” ra-
dios and as such, transmission range is influenced by the de-
gree to which you can “see” the other communicating party.
Large concrete structures and heavy foliage or transmission
from inside a building or vehicle will reduce your talk power.
• Optimal range: wide, open areas free of obstructions.
• Medium range: large buildings or trees blocking your line of
sight.
• Minimum range: mountainous areas or areas of heavy fo-
liage.
(unit: Hz)
01
02
03
04
05
06
07
08
09
10 67.0
71.9
74.4
77.0
79.7
82.5
85.4
88.5
91.5
94.8 11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30 31
32
33
34
35
36
37
38
---
97.4
100.0
103.5
107.2
110.9
114.8
118.8
123.0
127.3
131.8
136.5
141.3
146.2
151.4
156.7
162.2
167.9
173.8
179.9
186.2 192.8
203.5
210.7
218.1
225.7
233.6
241.8
250.3
OFF
CH Freq. CH Freq. CH Freq. CH Freq.
IC-446S-(5) 02.3.11 4:17 PM Page 18 (1,1)