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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. SWR/MOD/PWR SWITCH
This switch controls the function of the meter during the transmit mode. In the “SWR” position, the
meter indicates the Standing Wave Ratio (SWR) of your antenna. There are no adjustments because the
SWR circuit in this radio calibrates itself automatically. When the switch is in the “MOD” position, the
green scale on the meter indicates your percentage of modulation. It is the most accurate when testing
at four watts output. This operates in AM only, not in SSB. When this switch is in “PWR” position, the
meter indicates your power output.
7. TONE CONTROL
This controls changes tone quality in receive only. Rotating the knob clockwise increases treble,
counter clockwise rotation increases bass.
8. DIMMER CONTROL
This knob controls the level of brightness for the meter lamp and the channel display.
9. PA SWITCH
When this switch is pressed in, your voice will be heard only if an external speaker has been plugged
into the “PA.” jack on the back of the radio. The radio does not operate when you are in the “PA”
mode.
10. ROGER BEEP SWITCH
When this switch is pressed in, the radio transmits an audio tone at the end of your transmission to
indicate that transmission has ended. As a courtesy to others, use the Roger Beep only when necessary.
11. CHANNEL SELECTOR
This control is used to select a desired transmit and receive channel.
12. ANL SWITCH
When this switch is pressed in, the Automatic Noise Limiter is activated.
13. MODE SWITCH
This control allows you to select one of the following operating modes: USB, AM or LSB.
14. GNF SWITCH
When this switch is pressed in, the radio is in CB operation but the Galaxy Noise Filter is engaged.
This is a special noise filter that de-emphasizes audio high frequency response in order to increase the
signal-to-noise ratio of weak signals. While you will notice a dramatic reduction in the “rushing” sound
when this filter is activated, it does not have much effect on the signal-to-noise ratio of strong signals.
This filter works best in SSB mode and may cause AM receive to sound distorted.
15. CLARIFIER SWITCH
Pushing this switch turns the Clarifier on for receive tracking.
16. CLARIFIER CONTROL
Summary of Contents for DX 2547
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