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Operation,
Screen Layout and Navigation
1-2-3
RGS-2000NG TCAS Test Set Operation Manual
139187 / Rev. 500
Page 186
Subject to Export Control. See Cover Page for details.
September 2021
3.6.12.8
Airborne Msg Invalid MSO
Allows the user to transmit airborne messages with an invalid MSO location. Allows testing the DO-282
test required for airborne invalid MSO.
All the settings of Normal mode are also allowed.
3.6.12.9
Doppler Test
Allows the user to generate a positive or negative Doppler frequency shift on the UAT modulation
frequency. Allows testing DO-282 Doppler Test.
All the settings of Normal mode are also allowed.
3.6.12.10
Modulation Frequency
Allows the user to change the vertical spacing of the eye diagram (±312.5 kHz). The modulation
frequency can be changed from approximately 156 to 683 kHz allowing testing of DO-282 MOPS tests.
All the settings of Normal mode are also allowed.
3.6.12.11
DME Fruit 30 us Spacing
One UAT transmitter and one pulse modulated transmitter are connected to the top antenna port. Allows
testing the DME fruit DO-282 MOPS test.
The power and frequency of the DME 30 us pulse pair can be selected by the user.
All the settings of Normal mode are also allowed.
3.6.12.12
Doppler Modulation Frequency
Allows the user to generate a positive or negative Doppler frequency shift at a specified modulation
frequency to perform the DO-282 Doppler test.
All the settings of Normal mode are also allowed.
3.6.12.13
Receiver Selectivity
Allows the user to generate an UST message with a CW signal at the specified frequency and power
level to perfom the testing of receiver selectivity in the DO-282 MOPS.
All the settings of Normal mode are also allowed.
3.6.12.14
Multi-Receiver Scenario:
Allows transmission of multiple targets in the three frequency bands. With this Scenario the user can
test the receiver can simultaneou sly receive messages from each band. The user can also test the
receiver capacity by transmitting a high number of messages on each band.
The UAT and 1090 messages are tran smitted on the top and bottom ports. The 1030 messages are
transmitted on the selected port.
3.6.13
UAT TARGET DEFINITION SCREEN
The UAT Target Definition Screen is only available when a specific UAT Test Mode is selected on the
UAT Scenario Screen.
When a valid UAT Test Mode is selected the right-facing directional arrow button is enabled on the UATs
Softkey. Pressing this button accesses the UAT Target Definition user Screen.