Radio Shack 21-1905 - Selecting Quiet Codes; Using Scan; Using Key Lock

Selecting Quiet Codes
Quiet Codes lets you talk and listen to other radios set to the same channel and quiet code. This
is like having a sub-channel within a channel, giving you greater communication flexibility. When
you set a quiet code (there are 38 codes to choose from) and turn on this feature, you can
communicate with anyone who has a radio set to the same channel and quiet code.
To select the desire quiet code, hold down FUNC key, FUNC appears on the display, and
repeatedly press or hold UP or DOWN key until you see the code number you want to use. (See
the “Quiet Code Chart” for complete list of quiet codes).
To turn off the quiet code feature, hold down FUNC key and repeatedly press or hold UP or
DOWN key at the same time until the quiet code number disappears.
Quiet Code Chart
CTCSS No. Frequency ( Hz ) CTCSS No. Frequency ( Hz )
1 67.0 20 131.8
2 71.9 21 136.5
3 74.4 22 141.3
4 77.0 23 146.2
5 79.7 24 151.4
6 82.5 25 156.7
7 85.4 26 162.2
8 88.5 27 167.9
9 91.5 28 173.8
10 94.8 29 179.9
11 97.4 30 186.2
12 100.0 31 192.8
13 103.5 32 203.5
14 107.2 33 210.7
15 110.9 34 218.1
16 114.8 35 225.7
17 118.8 36 233.6
18 123.0 37 241.8
19 127.3 38 250.3
Using Scan
Press and hold Up or Down key to scan up/down Channel and Quiet code. The radio
automatically scans through the channels and pauses on each active channel. While scanning,
press UP or DOWN key to change the scanning direction. Press PTT key to stop scanning.
Note:
• The radio automatically scans through quiet codes while scanning through the
channels. The quiet code feature automatically turns on when signal is detected on a
channel and quiet code, and turns off after the signal disappears.
• During scan, the radio will not receive Caller ID data.
Using Key Lock
To lock or unlock keypad, hold down FUNC key and press PTT key to lock or unlock the keys.
appears when the keys are locked. When keypad is locked, user can still transmit (press PTT),
send Call (press CALL) or temporarily enable/disable Vox function (short press PTT key when
Vox level is 1-4).