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6 ADVANCED FUNCTIONS (F BUTTON)
The
F
button enables the user to access the transceiver’s advanced
functions and to change settings as required: CTCSS tones, VOX
mode, memory programming and recall, channel scanning, etc. In
general terms, to recall/change settings for various functions:
1. Press the
F
(Function) key repeatedly to scroll through the
available functions, until you find the one you want.
2. Press the o buttons to set the function currently on the screen.
Depending on the function, you can select
On
(function activated),
Off
(function deactivated), or scroll through the various values
(e.g., from
0 to 06
).
3. To store a changed setting, press either the
or the
F
button.
Both will perform the same operation, the difference being that
the
returns the radio to Standby, while
F
selects the next
function.
After following step 1, you must make any changes you wish
to within 10 seconds of each button being pressed, otherwise
the radio will return to standby and will store with the current
settings.
6. CTCSS subaudio tones selection
You can activate
38 CTCSS tones
(CONTINUOUS TONE CODED
SQUELCH SYSTEM), which are a sort of access key and allow to
talk only with “your group” of users tuned on the same frequency and
on the same
CTCSS
tone. CTCSS tones allow you to share more
radio networks on the same frequency and allow you to receive only
messages coming from “your group”. To activate a CTCSS tone:
1. Push the
F
button. The number of the CTCSS tone blinks.
2. Press or to select the desired CTCSS tone.
3. Push the
button to confirm your selection.
If you don’t want a CTCSS tone, select 00.
NO
FREQ. (HZ)
NO
FREQ. (HZ)
NO
FREQ. (HZ)
01
67.0
14
107.2
27
167.9
02
71.9
15
110.9
28
173.8
03
74.4
16
114.8
29
179.9
04
77.0
17
118.8
30
186.2
05
79.7
18
123.0
31
192.8
06
82.5
19
127.3
32
203.5
07
85.4
20
131.8
33
210.7
08
88.5
21
136.5
34
218.1
09
91.5
22
141.3
35
225.7
10
94.8
23
146.2
36
233.6
11
97.4
24
151.4
37
241.8
12
100.0
25
156.7
38
250.3
13
103.5
26
162.2
6.2 VOX mode
VOX (Voice Operated eXchange) enables the user to activate hands-
free transmission (without pressing any buttons) simply by speaking
into the microphone (7). This way, the user is able to rest the radio
on a nearby surface and still be able to communicate without picking
up the radio.
VOX functions best with the optional audio accessories which
connect to the
SPK
and
MIC PTT
jacks. By using these accessories,
the microphone will always be close to the user’s mouth, and apart
from the convenience of being hands-free, this will give the user an
even greater range of movement, especially with the radio clipped
onto the user’s belt.
Summary of Contents for 445 BT
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