Wavetek Meterman FG2C Manuel D'utilisation page 8

Figure 5
TTL PULSE 0V
TRIANGLE 0V
SINE 0V
SQUARE 0V
Ramp wave generation
(1) Press the Function (8) button (
(2) Connect the OUTPUT terminal (22) to the oscilloscope for observing the output signal.
(3) Pull out and rotate the Duty (9) knob to adjust the slope of ramp waveform.
(4) Adjust the AMPL (12) knob to control output amplitude of ramp waveform.
(5) Pull out the AMPL (12) knob to attenuate the output signal by 20dB.
TTL/CMOS signal output
(1) Select the Range (7) , and rotate the FREQUENCY (13) knob to set the frequency.
(2) Connect BNC connector of TTL/CMOS (20) to oscilloscope to observe the output signal.
(3) The output is a square waveform fixed at TTL level, suitable for general TTL integrated circuits.
(4) If a square waveform of CMOS level is required, pull out the CMOS (10) knob and adjust to required voltage levels.
Variation of external voltage-controlled frequency(VCF)
This mode of operation allows the user to adjust the frequency of the Function Generator with an external DC control Voltage.
(1) Select the Function (8), select the Range (7), and rotate the FREQUENCY (13) knob to set the required frequency.
(2) Connect external control voltage (0±10VDC) to the VCF (21) terminal via a suitable lead, and observe the signal generated from
the Output (22) BNC terminal.
(3) Other adjustments; the AMPL (12) knob can change the amplitude of signal, or attenuate the signal; the Offset (11) knob is for
DC level changes, rotate the Duty (8) knob to change the output ratio of pulse or ramp waveform ...etc..
Auto Sweep
(1) Select the Function (8) button, select the Range (7), and rotate the FREQUENCY (13) knob to set the required base
frequency.
(2) Connect the OUTPUT terminal (22) to the oscilloscope for observing the OUTPUT signal.
(3) Rotate the FREQUENCY (13) knob to determine the upper limit frequency.
(4) Pull out the FREQUENCY (13) knob to activate auto sweep operation.
(5) Rotate the SWEEP/TIME (14) knob and SWEEP RATE (16) knob to adjust sweep time and rate.
(6) The LOG sweep mode is selected by pulling out the SWEEP/TIME (14) knob.
Note: The sweep width can only be adjusted during the sweep cycle and it cannot be stopped.
AM/FM operation
(1) Select the Function (8), select the Range (7), rotate the FREQUENCY (13) knob to set required frequency.
(2) Connect OUTPUT terminal (22) to the oscilloscope for observing the output signal.
(3) For the FM modulation mode, press the MOD (15) button and pull out the MOD/DEPTH (16) knob.
(4) For the AM modulation mode, press the MOD (15) button and push in the MOD/DEPTH (16) knob.
(5) Adjust the MOD/DEPTH (16) knob to achieve required modulation ratio.
Pulse wave generation
(1) Press the Function (8) button (
and rotate the FREQUENCY (13) knob to set the frequency.
(2) Connect the OUTPUT terminal (22) to the oscilloscope for
observing the output signal.
(3) Pull out and rotate the Duty (9) knob to adjust the width of pulse
waveform.
(4) Adjust the AMPL (12) knob to control the pulse amplitude.
(5) Pull out the AMPL (12) knob to attenuate the output signal by
20dB.
) , select the Range (7) , rotate the FREQUENCY (13) knob to set the frequency.
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), select the Range (7),