Clarifier; Tone Control; Microphone Gain Adjustment; Receiver Gain Adjustment - Albrecht AE7500 Bedienungsanleitung

8.2

Clarifier

The CLAR control allows the fine tuning of the receiver frequency from 1kHz below
to 1kHz over the indicated frequency. The clarifier is primarily used to adjust the tone
and readability of an incoming SSB signal. For normal operation turn this knob to
the center position. The transmitter frequency is not affected by this control.
8.3

Tone Control

Turn the TONE control to adjust the receiver sound to your convenience. The
transmitter sound is not affected.
8.4

Microphone Gain Adjustment

Controls the sensitivity of the microphone amplifier circuit. The gain increases as the
control is rotated clockwise. For optimum setting, press the push-to-talk switch on the
microphone and speak in a constant tone into the microphone. While speaking,
rotate the MIC-G control clock-wise until the modulation LCD display reads +30.
Next, rotate the control counter clockwise until the +30 segment of the display starts
to flicker.
8.5

Receiver Gain Adjustment

Adjusts the receiver sensitivity to both signals and background noise. This effects the
distance at which a signal can be detected. Turning the RF-G control counter-
clockwise reduces the receiver sensitivity. This is particularly useful in areas where
large volumes of signals are present.
8.6

Transmitter Power Adjustment

Continuously variable control for adjusting the RF output power of the transmitter in
all modes. To reduce the RF output power rotate the PWR control counter
clockwise. To increase rotate the control clockwise.
8.7

Noise Blanker

This circuit eliminates pulse type interference usually associated with automotive
ignition systems. The noise blanker is activated or deactivated by successively
pressing the FUNC and the NB key. If enabled, the NB icon is shown on the LCD.
8.8

Menu Functions (additional settings)

Key Tones on/off

Press the SCAN/MENU key for more than 3 seconds.
The LCD will show "bP" followed by "on" or "off".

Turn the CHAN control to toggle between on and off. If the Key Tones are
enabled a note icon is shown on the LCD.
Roger Beep on/off
When activated a short 1 kHz tone will automatically be transmitted upon release of
PTT switch. This notifies contacts that your transmission has ended and you are
ready to receive their signal.

Press the SCAN/MENU key for more than 3 seconds and again one time
briefly. The LCD will show "r9b" followed by "on" or "off".

Turn the CHAN control to toggle between on and off. If the Roger Beep is
enabled, the RGB symbol is shown on the LCD.
Illumination colour

Press the SCAN/MENU key for more than 3 seconds and again two times
briefly. The LCD will show "LI9Ht" followed by a number representing the
colour.

Rotate the CHA control to select the colour. Zero represents no illumination.
30 English