Galaxy DX 979 Manuale d'uso - Pagina 4
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5. MIC GAIN CONTROL: Adjusts 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
functions as the volume control.
6. RF POWER CONTROL: This control allows the user to adjust RF power
output.
7. DIMMER CONTROL: This knob controls the level of brightness for the
faceplate lettering, meter lamp and channel display.
8. SWR LED: This LED lights red when your SWR is higher than about 3:1. This is
not an exact indicator of 3:1 SWR, but it is an indication that you should check
your SWR reading.
9. CHANNEL SELECTOR: This control is used to select the desired transmit and
receive channel.
10. FRONT PANEL METER: The front panel meter allows the user to monitor
incoming signal strength, RF output power, SWR level and AM modulation level.
11. ILLUMINATED FACE PLATE: All faceplate lettering will fully illuminate to
allow the user easy viewing at night. This unique, solid state, backlight is
designed to maximize night vision while minimizing eye fatigue. Therefore, it is
ideal for switch and control recognition day or night.
12. 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.
13. CLARIFIER CONTROL: Allows tuning of the receive frequency above or
below the channel frequency by up to 1.0KHz. Although this control is intended
primarily to tune in SSB signals, it may be used to optimize AM signals.
14. 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 in the AM mode only. They are most accurate when testing at
maximum power output. When this switch is in "PWR" position, the meter
indicates your power output.
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15. NB-ANL/CB/PA SWITCH: When the switch is in the NB/ANL position, the
Noise Blanker (NB) and Automatic Noise Limiter (ANL) circuits are activated.
The Noise Blanker is very effective in eliminating repetitive impulse noise such
as ignition interference. In the CB position, the PA function is disabled and the
radio will transmit and receive on the speaker that is connected. In the PA position,
the radio acts as public address amplifier. Your voice will come out of the speaker
that is plugged into the PA. SP. jack on the rear panel. The radio does not operate
when you are in the PA mode.
16. MODE SWITCH: This control allows you to select one of the following
operating modes: AM/USB/LSB.
17. RX/TX LED: This LED is green during receive and red during transmit.
18. CHANNEL DISPLAY: The channel display indicates the current selected
channel.
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