NF WF1973 - Modulated Oscillation Mode; General

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7. SPECIFICATIONS
MULTIFUNCTION GENERATOR
7.6 Modulated Oscillation Mode
7.6.1 General
Modulation type FM, FSK, PM, PSK, AM, DC offset modulation, PWM
Modulation source Internal, external (selectable)
Internal modulation waveform
Other than FSK, PSK Sine wave, square wave (50% duty), triangular wave
(50% symmetry), rising ramp wave, falling ramp wave,
noise, arbitrary wave
FSK, PSK Square wave (50% duty)
Internal modulation frequency
Other than FSK, PSK 0.1 mHz to 100 kHz (5 digits or 0.1 mHz resolution)
FSK. PSK 0.1 mHz to 1 MHz (5 digits or 0.1 mHz resolution)
Internal modulation sync output
Output waveform Square wave with 50% duty that rises at zero phase
position of internal modulation waveform
Fixed to low level while internal modulation waveform
is noise
Output connector Shared with sync/sub-output connector
Internal modulation signal output
Output voltage −3 V to +3 V/open
Output connector Shared with sync/sub-output connector
External modulation input (other than FSK, PSK)
Input voltage range ±1 V full scale
Maximum allowed input ±2 V
Input impedance 10 kΩ, unbalanced
Input frequency DC to 25 kHz
Input connector Front panel (WF1973) / rear panel (WF1974)
BNC receptacle
Shared with external addition input, cannot be used
simultaneously with adding operation
External modulation input (FSK, PSK)
Polarity Positive, negative (selectable)
Input frequency DC to 1 MHz
Half-sine
edge pulse
Pulse whose rise and fall are half-sine waveform
Leading edge time (0.00% to 100.00% of basic period)
Trailing edge time (0.00% to 100.00% of basic period)
Duty (0.00% to 100.00%）
Bottom
referenced
ramp
Ramp waveform with bottom level as reference
Symmetry (0.00% to 100.00%)
Waveform
Name
Waveform
Example
Description and Variable Parameters
1.5
1.0
0.5
0
0.5
1.0
1.5
1.5
1.0
0.5
0
0.5
1.0
1.5