Radio Shack 21-1679 A ユーザーズマニュアル

1.  Turn SQUELCH fully anticlockwise.
2.  Turn on the CB radio. A channel number and the signal 

meter appear. If necessary, press CB/WX so that a channel 

number and the signal meter appear.

3.  Press 

▲ or ▼ to select the desired channel.

4.  Adjust OFF/VOLUME to the desired volume level.
5.  Slowly turn SQUELCH back clockwise just until the noise stops. 

Note:  Do not turn SQUELCH too far clockwise because you 

RX below the signal meter indicates the CB radio is ready to 

receive transmissions.

Test receiving transmissions on 

your CB Radio before trying to 

transmit a message.
To transmit a message:
1.  Press and hold PTT. 

TX 

appears below the signal 

meter and the signal meter 

shows the output level. Hold 

the CB radio 2–3 inches from your mouth and speak in a 

normal voice to the internal microphone.

2.  When you finish speaking, release PTT.
Notes:
•  If you transmit a message while the CB radio is displaying a 

weather alert (see Understanding Digital Weather Alert), the alert 

tone stops and WX displays steadily. To stop the alert tone 

without transmitting a message, press LOCK/ALERT OFF.

•  To avoid overheating the internal circuit, do not press and 

hold PTT nonstop for over two minutes.

21-1679A_En_111207.indd   9

11/12/2007   17:32:55