GW Instek GDS-2000 training manual - Manual (Page 44)

GDS-2000 Series Training Manual
44
A
PPENDIX
Sine Wave Frequency Adjustment
The following shows how to adjust the frequency of the pure sine
wave generated on the board.
1. Connect the probe to the sine wave output for viewing. The
frequency is adjusted by the knob below the USB connector. The
three LED above the knob shows the frequency adjustment unit.
CH1
FM Sin
100KHz 1KHz 10Hz
Knob
2. To adjust the frequency, first press the knob down to select the
frequency adjustment unit. The corresponding LED turns On.
10Hz(default) 1kHz 100kHz (Freq. Fixed)
3. Turn the knob to adjust the frequency (except for the “Fixed”
position). Frequency range is 10Hz ~ 3MHz.
Note:  When you power cycle the demo board, the sine
wave frequency will be reset to the default 1kHz.
 The frequencies of FM and X-Y mode signals,
although they are sine-wave oriented, are fixed.