Rohde & Schwarz SMW200A - Page 529

Configuring the Signal in the RF Domain
R&S
®
SMW200A
514User Manual 1175.6632.02 ─ 16
"External"
Modulation source is fed to the input connector.
See Chapter 7.7.2.2, "External Signal Sources", on page 496.
Remote command:
[:SOURce<hw>]:PULM:SOURce on page 882
Transition Type
Selects between "Fast" or "Smoothed" slew rate (slope).
"Fast"
Enables fast transitions with shortest rise and fall times.
"Smoothed"
Flattens the slew rate, resulting in longer rise / fall times. Use this
mode if you are working with devices that are sensitive to steep
slopes.
Remote command:
[:SOURce<hw>]:PULM:TTYPe on page 885
Video Polarity
Sets the polarity of the internally generated pulse video (modulating) signal, related to
the RF (modulated) signal.
This signal synchronizes the pulse generator signal and the RF signal.
"Normal"
The video signal level follows the RF signal, that means it is high and
low simultaneously with the RF signal.
"Inverse"
Inverts the polarity between the video and the RF signal, that means
it is high, when RF is low, and vice versa.
Remote command:
[:SOURce<hw>]:PULM:OUTPut:VIDeo:POLarity on page 884
Polarity Pulse Input
Sets the polarity of the active slope of a pulse input signal, that is the external pulse
modulation signal.
Remote command:
[:SOURce<hw>]:PULM:POLarity on page 883
Threshold USER4-6 Input/Threshold Pulse Input
Sets the high/low threshold in volts for the signal at the USER4-6 connectors.
The input signal is defined with the parameter Signal. The same threshold applies for
all 3 connectors and any input signal (e.g. external pulse modulation or trigger signal).
Remote command:
[:SOURce]:INPut:USER:PULM:LEVel on page 862
Impedance Pulse Input
Selects the input impedance for an external pulse modulation signal.
Remote command:
[:SOURce<hw>]:PULM:IMPedance on page 884
Set Global Connector for Pulse Modulation
Routes the pulse input signal by default to the global user connector USER 4 ("Pulse In
A/B"), and correspondingly the pulse output signal to USER 5 ("Pulse Out A/B").
Analog Modulations