Arbitrary Waveform Generator - Produktinfo.conrad.com

WGxx Arbitrary Waveform Generator Front Panel Operation
Amplitude
Offset
The actual frequency value can be saved to a memory cell using a long push
to buttons 1 to 3 . The corresponding button has to be pushed until a
long beep appears. (The storage of frequency values is also possible if the
LCD line 2 displays the mode line!)
The stored value will be displayed in a shortened way. If, e.g., the value
1.234kHz has been stored, the display indicates 1k23. Nevertheless, the
storage cell contains the exact value of 1.234kHz.
A signal beep will appear if the upper or lower frequency limit of the instrument
is reached; in this case the frequency is set to the corresponding limit value.
The peak-to-peak value of the actual signal will be displayed in the first line of
the LCD if the Amplitude button is pressed. The second line of the LCD shows
(similar to the case of frequency adjustment) three amplitude storage values
(cf. Fig.1).
U a = 1 0 , 2 5 V p p
1 , 2 0 5 , 0 0 1 0 , 0
Fig.3: Display of signal amplitude (peak-to-peak)
Again, the actual value can be set to a memory value by a short press to
buttons 1 to 3 ; if the buttons are pressed for a longer period the
actual amplitude will be stored to the corresponding memory cell.
The amplitude value is limited to the range specified in the technical data
section. If, e.g., the signal offset value is adjusted to Voffs=2V, a output voltage
range of Va= Vmax − 2V can be achieved. A warning beep will be provided if this
limit is reached.
Remark: Due to the output impedance (internal impedance) of the
instrument (50 Ω) the voltage across the load is only 50%
of the selected amplitude for a 50 Ω load impedance (i.e.,
the amplitude value described above specifies the
no-load output voltage)!
The actual offset value will be displayed in the first line of the LCD by pushing
the Offset button. Similar to the frequency adjustment also here the second
line acts as mode line (Fig.4) or indicates the content of the three available
memory cells (Fig.5).
U o f f s = - 2 , 3 5 V
Fig.4: Display of offset (mode line)
( )
U o f f s = - 2 , 3 5 V
- 3 , 2 0 + 2 , 3
Fig.5: Display of offset (memory line)
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