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DX 979
10
S
60
MOD
PWR
SWR
DX 979
2.0 INTRODUCTION
This section explains the basic operating procedures for the DX 979 mobile CB radio.
2.1 CONTROLS AND CONNECTIONS
2.1.1 FRONT PANEL
Refer to the above Figure 2-1 for the location of the following controls.
1. MICROPHONE JACK: Used to connect microphone for voice source.
2. SQUELCH CONTROL: This knob is used to eliminate background noise being heard through the
receiver, which can be disturbing when no transmissions are being heard through the receiver. To
use this feature, turn the knob fully counterclockwise and then turn clockwise slowly until the
background noise is just eliminated. Further clockwise rotation will increase the threshold level
which a signal must overcome in order to be heard. Only strong signals will be heard at a maximum
clockwise setting.
3. ON/OFF VOLUME CONTROL: This knob controls the volume and power to the radio. To turn
radio on, rotate the knob clockwise. Turning the knob further will increase the volume of the
receiver.
4. RF GAIN CONTROL: This control is used to reduce the gain of the RF (receive) amplifier under
strong signal conditions.
All manuals and user guides at all-guides.com
11
12
13
TALKBACK
CLARIFIER
dB
OFF
VOL
OFF
1
2
Figure 2-1 Front Panel
14
15
SWR
NB/ANL
MOD
CB
AM
PWR
PA
SQ
MIC
RF
3
4
5
6
- 3 -
CHAPTER 2
OPERATION
16
17
18
USB
RX/TX
SWR
LSB
DIM
PWR
7
8
9
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