Agilent Technologies S GSM manual Pulse Modulation Agilent 8922M Only, Measure

15.PULSE (MODULATION) (Agilent 8922M Only)

NOTE

Connectors

Front-Panel Connectors of the Agilent Technologies 8922M/S

The PULSE connector connects to the hop controller and to the RF output section (when selected as active).

This signal is the TTL input to externally control when the amplitude is pulsed ON (TTL HIGH) or OFF (TTL LOW). It also pulses the envelope up (TTL HIGH) and down (TTL LOW) when in 30 dB Pulse mode.

This connector can be used in combination with AM (MODULATION IN) to generate pulsed and/or shaped amplitude envelopes of different levels for each RF generator pulse in real-time.

PULSE (MODULATION IN) is selected when the RF generator’s modulation source Pulse field is set to Ext. This connector is connected directly in parallel with PULSE_MOD_IN on the SYSTEM BUS connector.

The two inputs are directly coupled to each other. Avoid putting signals on both inputs simultaneously.

Requirements	High drive requirements: 100 μA Low drive requirements: 1
	mA TTL HIGH: On or Higher Level TTL LOW: Off or Lower
	Level
See Also	Screens: RF Generator/RF Analyzer (Mod Source)
	Specifications Signal Descriptions for the System Bus

16.RF IN/OUT The RF input/output is connected to the input section to the RF analyzer and the RF generator’s step attenuators. It is the main device-under-test (DUT) connection for the radio’s RF signals. It is normally used for transceiver testing. This connector is not reverse power protected, but can handle high power levels for extended periods of time because there is a temperature sensor for this signal.

WARNING:	If you have the Agilent 8922M/S Option 010 Multi-Band Test System, do not
	connect the mobile to this port.
	This is connector is selected when the RF generator’s RF output is set to RF IN/
	OUT or when the RF analyzer’s RF input is set to RF IN/OUT.
17. SCOPE IN	The measurement input for the oscilloscope connects to the Audio analyzer and to
(MEASURE)	the oscilloscope (when selected as an Audio analyzer input source). This is the input
	for general purpose oscilloscope measurements, but it can be used for other
	measurements as well (for example, audio analyzer measurements, filtering an audio
	signal when used with the demodulation output monitor signal).
	See Also	Screens: Oscilloscope

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