Ranger RCI-2985DX Manual page 5

5. MIC GAIN CONTROL
Adjusts the microphone gain in the transmit and PA mode. 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 functions as the volume control.
6. CHANNEL SELECTOR
This control is used to select a desired transmit and receive channel.
7. CLARIFIER CONTROL
Allows adjustment of the receive frequency above or below the channel frequency. Although this
control is intended primarily to tune in SSB signals, it may be used to optimize AM/FM signals as well.
8. SQUELCH CONTROL
This switch is used to eliminate background noise being heard through the receiver which can be
disturbing when no signal is 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 so that only strong signals will be heard.
9. VOLUME CONTROL
Turn clockwise to set the desired listening level.
10. MODE SELECTOR
This selector allows you to select one of the following operating modes: FM/AM/USB/LSB/CW/PA.
11. PHONE JACK
Accepts a plug from a headset of 4 to 32 Ohm impedance. Insertion of the plug will disable the built-in
speaker and external speaker connected to External Speaker jack.
12. RF/SWR METER
Used for two purpose - to indicate approximate transmitter power when transmitting and antenna SWR
(standing wave ratio). Note that the power meter has separate scales for AM, FM, SSB and CW
transmission, respectively.
13. SIGNAL/MODULATION METER
This meter indicates signal strength when receiving and modulation percentage when transmitting in
the AM mode. Modulation readings are most accurate when using maximum output power. The
modulation meter does not show movement in FM or SSB, but the Power Output meter (RF/SWR)
does indicate RF out in these modes.
14. FREQUENCY DISPLAY
The frequency display indicates the frequency of the selected channel you wish to operate on.
15. FUNCTION INDICATORS
The indicators permit you to know instantly the mode to which the unit is engaged.
3.1.2 PROGRAMMING KEY PAD
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