LOW-FREQUENCY AMPLIFIER
33
Fig.39
In Fig.39:
1 - LFA is on
2 - representation form (LINEAR SPECTRUM)
3 - marker frequency value
4 - marker
5 - "hot" buttons
6 - signal amplitude at a marker frequency
7 - gain value
8 - bias voltage value
The spectrogram is not scaled and is presented in all range (0 - 25 kHz).
SPECTRUM ANALYZER CONTROLS:
Button
Action
Marker move
F1, ESC
Go to LFA main menu
F2
Turning on/off GAIN SETTING
F3
Turning on/off BIAS VOLTAGE SETTING
F4
Turning on OSCILLOSCOPE
MODE
Go to the Analyzer main menu
ENTER, FUNC
Are not used
Values of the gain and bias voltage, which are earlier set when using an OSCILLOSCOPE
remain. Adjustment of these parameters is possible without turning off the SPECTRUM
ANALYZER. The order of change is described in item 5.1.2 and item 5.1.3.