Ranger RCI-6900F HP, Manual

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Figure 2-1 Front Panel
2.0 INTRODUCTION
This section explains the basic operating procedures for the RANGER RCI-6900F HP / RCI-6900F TB
mobile transceiver.
2.1 CONTROL AND CONNECTIONS
2.1.1 FRONT PANEL
Refer to the above Figure 2-1 for the location of the following controls.
1. ON/OFF VOLUME CONTROL
This knob controls the volume and the power to the radio. To turn the radio on, rotate the knob
clockwise. Turning the knob further will increase the volume of the receiver.
2. SQUELCH CONTROL
This switch is used to eliminate background noise being heard through the receiver which can be
disturbing when no transmissions are being received. To use this feature of your radio, gently turn the
switch fully counterclockwise, and then turn clockwise until the background noise is just eliminated.
Further clockwise rotation will increase the threshold level and only strong signals will be heard.
3. MIC GAIN CONTROL
Adjusts the microphone gain in the transmit mode. This control adjusts the gain to the extent that full
talk power is available several inches away from the microphone.
4. RF GAIN CONTROL
This control is used to reduce the gain of the RF amplifier under strong signal conditions.
5. TALKBACK CONTROL
Adjust this knob for desired volume of Talkback. This is used to monitor your own voice. For example,
you could use this feature to compare different microphones.
6. RF POWER CONTROL
This control allows the user to adjust RF power output.