Radio Shack 21-1703 A - Manual (Page 3)

3
Product Features
Other Features
Full Legal Power – gives you the greatest available range.
Automatic Noise Limiter – reduces impulse-type noises while receiving.
External Speaker Jack – provides a connection for an external speaker.
Phase-Locked Loop (PLL) Frequency Synthesizer – provides highly accurate and
stable tuning.
Two Built-In Ceramic Filters – ensure superior channel selectivity and freedom
from adjacent channel interference.
Automatic Modulation Control – prevents the transmitter signal from over-
modulating and distorting.
Product Features
TX / RX
Shows when the radio
is transmitting (TX), or
receiving (RX).
Channel Display
Shows the current
channel.
VOLUME
Rotate to increase or
decrease the speaker
volume.
SQUELCH
Rotate to adjust the amount of
background noise.
OUT CH9 CH19
Switch to move between standard
frequencies and emergency channels.
CHANNEL
Rotate to select
frequency.
Microphone
Push to Talk (PTT)