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The Ranger radio provides a variety of capabilities. To help you take advantage of those capabilities, the front panel controls are designed for convenience and ease of use. Their functions are described below.

1. RF LEDs
Indicate the amount of transmitted power. As the LEDs light across the scale, they show the relative power of
your transmission signal.

2. S LEDs
Indicate the signal strength of the signal you are receiving. As the LEDs light across the scale, they show the relative power of the signal.

3. CLARIFIER
Iis a fine tuning control. You can adjust a frequency ± 500 Hz for best reception.

4. RESET
Is on the on/off control for the radio's backup voltage power. When this control is turned on, there is enough DC
power to maintain any information you have saved in memory. Turn the control clockwise until you hear a click to turn on the backup power. If you turn this control off, anything saved in memory is erased.

SQ (squelch) is a second function of this control. Use it to silence the background (white) noise, to adjust the transceiver's ability to receive signals, and to control automatic scanning of the memory. Turn SQ clockwise to silence background noise. Turn SQ counterclockwise to increase the Ranger's ability to receive weaker frequencies. This control also starts and stops automatic scanning of frequencies saved in memory. Turn SQ clockwise to initiate automatic scanning; turn it counterclockwise to stop automatic scanning of memory (after pressing the MEMORY button).

5. MIC GAIN
I ncreases or decreases the power of the microphone amplifier circuit. To increase its gain, turn the control
clockwise; to decrease gain, turn the control counterclockwise. For the optimum setting, press the PTT button and turn the control clockwise until all RF LEDs light. Then, turn the control counterclockwise until the last LED just starts to flicker.

5A. ANL SWITCH
Push this knob to turn on automatic noise limiter.

6. RF GAIN
Adjusts the transceiver's sensitivity to both signals and background noise. It affects the distance
at which you can receive a signal. Turn the control counterclockwise to reduce the Ranger's sensitivity. This
is particularly useful in areas where there is a lot of congestion (many signals close together on the frequency
range).

6A. NB SWITCH
Pull this knob to turn on noise blanker.

7. FREQUENCY DISPLAY
The frequency display consists of eight (8) numerical LEDs. It displays the frequency in use from 28.000.0 MHz to 29.999.9 MHz.

8. CONTROL KEYPAD
The momentary switches are used for a variety of purposes described below:

SCAN Press upper switch to scan frequencies in an upward direction; press lower switch to scan frequencies in
decreasing order. 100K, 10K, 1K, 100Hz (scanning increments) Press the appropriate upper momentary switch to
select the scanning increment (i.e., 100,000 Hz, 10,000 Hz, 1,000 Hz, or 100 Hz).

To change the frequency displayed, press the upper switch to increase the displayed number or lower switch to
decrease the displayed number. Use the switches in this manner when selecting a specific frequency, saving a
frequency in memory, or setting frequencies for split frequency operation.

CH1. CH2, CH3, CH4, CH5 (channel selection) When saving a frequency in memory, press the upper switch that
corresponds tO the channel number that you want to assign to that frequency.

9. MANUAL
Is used before starting or restarting several procedures. If you are scanning frequencies, scanning will stop when you press this button. Press MANUAL before directly entering a frequency, before entering a new upper or lower frequency range limit, and before you begin the procedure for storing frequencies in memory or Setting frequencies for split operation.

10. MEMORY
Scans the frequencies that you have saved in memory. If SQ is turned down (counterclockwise), MEMORY
scans to the next channel each time the button is pressed. If SQ is turned up (clockwise), channels are scanned
automatically when the MEMORY button is pressed once.

11. CANCEL
Clears a frequency that has been assigned to a channel and saved in memory. Use the MEMORY button to
display the frequency and press CANCEL.

12. ENTER
Is used when you are changing the frequency range or saving frequencies in memory. Press ENTER when you want the transceiver to accept the frequency displayed as the one you want to use. For example, if you are
changing the frequency range, press ENTER once after you enter the upper frequency and again after entering the
lower frequency. ENTER is used in the same way when saving your favorite frequencies in memory.

13. SCAN PRG
Is used when you want to change the frequency range of the transceiver. Press this button before
entering the new upper and lower range limits.

14. Status LEDs
Provide the following information:

RX lights whenever the AF GAIN is on and the microphone's PTT button is released.

TX lights when you are transmitting (i.e., pressing the PTT button on the microphone).

ST BY is not currently implemented. This LED will be used when additional accessories are available.

SPLIT lights when you are using split frequency operation (the SPLIT button is pressed in).

15. Channel LEDs
(CH1, CH2, CH3, CH4, CH5) provide information about frequencies saved in memory. An LED flashes once when you save a frequency in memory by pressing one of the channel switches. When you scan memory automatically, each LED lights briefly as the channel's frequency is scanned. A channel's LED also lights when manually scanning memory and when that channel's frequency is in use.

16. SPLIT
Is pressed in when you want to use split frequency operation. Release the button (out position) when you want
to resume normal operation.

17. SPLIT PRG
Is used when setting the frequencies for split frequency operation. The button should be out when you
enter the receive frequency. Press SPLIT PRG in before entering the difference (number of MHz) between the receive
and transmit frequencies. This button should be out when actually using split frequency operation.

18. + / -
Is used with split frequency operation. The button should be out when you are setting the receive and transmit
frequencies. During actual operation, press the button in if the transmit frequency is higher than the receive frequency. The button should be out if the transmit frequency is lower than the receive frequency.

19. OFF/AF GAIN
is the on/off and volume control for the Ranger. Turn the control clockwise until you hear a click to turn on the transceiver. Continue to turn the control clockwise to increase the volume; turn it counterclockwise to decrease
the volume.

20. MODE SELECTOR
Is used to select one of the following operating modes:
FM (F3) Frequency Modulation
AM (A3) Amplitude Modulation
USB (A3J) Upper Side Band
LSB (A3J) Lower Side Band
CW (A1) Continuous Wave