NF WF1945B - Page 174

8.3 Other functions
8-8 WF1945B
z Internal modulation functions
Modulation items
Internal modulation frequency
Range
Resolution
Internal modulation waveform
FM(FSK), PM(PSK), AM, DC offset modulation, PWM (
duty variable)
0.1 mHz to 500.00 Hz
5 digits at 1 Hz and more, 0.1 mHz at less than 1 Hz.
, , , ,
z External modulation functions
Modulation item
External modulation frequency
External AM depth
Input voltage range
Input impedance
Input connector
AM, on/off selectable
DC to 10 MHz
-3 V input: -100%
-1 V input: 0%
0 V input: 50 % of the set amplitude
+1 V input: the set amplitude.
-3 V to +1 V
50 Ω
Rear panel BNC receptacle (EXT AM IN)
z External add functions
External add
External addition frequency
External addition gain
Input voltage range
Input impedance
Input connector
Add external signal to FUNCTION OUT signal
On/off selectable
DC to 10 MHz
At no-load
10 V range: × 2
1 V range: × 0.2
±5 V
50 Ω
Rear panel BNC receptacle (EXT ADD IN)
z Setting initialization
Functions Initializes nearly all setting contents.
Initialization settings,
“3.3 Basic operation (Initialization table)”,
cf.