Test Set Operation
Subject to Export Control, see Cover Page for details.
3-8
RF Input and Output Connectors
The routing of signals within the Test Set to and from the RF input and output connectors is
controlled from the selected Test System. There is an LED above each connector that indicates
when a connector has been selected; the LED does not indicate when the connector is ON. More
information about selecting the RF input and output connectors is provided later in this chapter.
Good quality, correctly fitted cables should be used to establish RF output connections. Worn
connectors and damaged or kinked cables may cause high levels of reflected power, resulting in
misleading results and possible damage to the transmitter.
Refer to the 3900 Platform Specifications
for additional information.
Audible and Visual Overload Warning
If the RF Signal applied to the ANT (Antenna) Connector exceeds the safe maximum level, an
audible and visual warning is triggered. The overload warning is also triggered if excessive
reverse power is applied to the GEN (Generator) Connector. The Overload Warning is reset on
the User Calibration Tile
Tile and Operational Status Tile Tile.
If the Audible warning triggers, reduce power immediately. Do not power down the Test Set
as this does not remove the overload power from the connection.
Do not disconnect the RF cable from the Test Set as this may cause burns to the hands.
ANT (Antenna) Connector
The RF analyzer input is a 50 Ω TNC input, providing maximum sensitivity input to the RF
analyzer of the Test Set.
The rated maximum input level for the ANT Connector is +10 dBm. Refer to the 3900
Platform Specifications for additional information.
T/R Connector
The combined (Duplexed) RF Gen output and high power RF analyzer input is a 50 N type
connector which provides an RF Gen output connection and an RF analyzer input and broadband
power meter connection. The RF Gen maximum output level and the RF analyzer sensitivity are
lower than when using the separate GEN (Generator) Connector
and ANT (Antenna) Connector.
The rated maximum input power level for the T/R Connector is 125 W. Refer to the 3900
Platform Specifications for additional information.
GEN (Generator) Connector
The RF Gen output is a 50 TNC output, providing the maximum RF output level from the RF Gen.
The RF GEN Connector is reverse power protected to a level of +10 dBm.
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