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TR-127GK/DX
CHAPTER 2
OPERATION
Figure 2-1 Front Panel
2.0 INTRODUCTION
This section explains the basic operating procedures for the TR-127GK or TR-127DX 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. MIC GAIN CONTROL: Adjust the microphone gain in the transmit and PA modes. This controls
the gain to the extent that full talk power is available several inches away from the microphone. In
the Public Address (PA) mode, the control function as the volume control.
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. 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
OFF
MIC GAIN
TR - 127
VOL SQ
CAL OFF LOW
SWR CALRF GAIN
OFF PA
CLARIFY
NORMAL ANT
ANLS/RF
SWR
TONECBNB CH19
TX/RX
9 14131210 11 181715 16
1 6432578