NF WF1945B, Instruction Manual

Page: 171 / 188

WF1945B
8-5
8.3 Other functions
z Burst
Oscillation modes
Mark wave number
Space wave number
Phase
Range
Resolution
Trigger source
External
trigger
Polarity
Input level
Minimum pulse width
Input impedance
Input connector
Internal trigger oscillator
Range
Resolution
Trigger delay
Range
Resolution
Trigger
jitter
Oscillation stop level
Range
Resolution
Burst, gate, trigger and trig’d gate
(Trig’d gate: gate on/off at each trigger)
0.5 to 500000.0, 0.5 wave unit
(The mark wave number is the oscillation wave number at the
time of burst and trigger).
0.5 to 500000.0, 0.5 wave unit
(Space wave number is the stop wave number at the time of
burst).
Phase from oscillation stop to oscillation start
−
1800.000° to +1800.000°
0.001°
Selectable internal trigger oscillator or external trigger input.
Trigger can be applied from the panel keys or via remote control
(GPIB or USB).
Trigger: Rising or falling edge selectable
Gate: Positive or negative logic selectable.
Trig’d gate: Rising or falling edge selectable
High level
≥
+3.9 V, low level
≤
+1.6 V
50 ns
At 10 k
Ω
, pull up to +5 V.
Front panel BNC receptacle (TRIG/SWEEP IN)
1µs to 100.0 s
4 digits at 1 ms and more, 1 µs at less than 1 ms.
0.3 µs to 100.00 s
5 digits at 1 ms and more, 0.1 µs at less than 1 ms.
Oscillation mode: Effective with trigger.
Less than 50 ns
On and off settable
Off: stops at set phase.
On: stops at set stop level.
−
100.0 % (maximum negative output) to +100.0 % (maximum
positive output),
0.01 %