Instrument Function
R&S
®
SMF100A
298
Operating Manual 1167.2319.02 ─ 12
"Ext Gated"
The pulse generator signal is gated by an external gate signal.
Example: Generation of pulse signals using trigger mode Exter-
nal Gated (Single Pulse)
The measurement is performed using a 6-dB-attenuator.
Parameter
Value
Trigger Mode
Extern Gated
Double Pulse State
Off
External Trigger Input Slope
Positive
Pulse Delay
100 ns
Pulse Width
100 ns
Pulse Period
300 ns
Channel 1 = Indicates the external gate signal. The signal is active when it is high
(positive).
Channel 2 = Indicates the sync signal. The sync signal starts after a trigger delay of
typically 50 ns (see specifications). It is repeated after the set pulse period
of 300 ns as long as the gate signal is active.
Channel 3 = Indicates the pulse signal. The first pulse starts after the pulse delay of
100 ns. The second pulse starts after the set pulse period.
Note:
The sync signal is output at the PULSE SYNC connector, and
the pulse signal at the PULSE VIDEO connector.
Remote command:
[:SOURce<hw>]:PULM:TRIGger:MODE
Trigger Level – Input/Trigger Settings
Selects the external trigger level (threshold TTL, 0.5 V or -2.5 V).
Remote command:
[:SOURce<hw>]:PULM:TRIGger:EXTernal:LEVel
Modulation Generator, Pulse Generator and LF Output