Mode S and ATCRBS Transponder

Xpdr Auto-Test:

Every parameter the user commonly needs to view is displayed on one

screen.

The auto-test performs all tests defined by FAR Part 43 Appendix F,

including the proposed Eurocontrol additional tests.

The tests are tailored automatically according to reported transpon-

der level to avoid erroneous failures.

The test list is selected from the auto-test screen. This provides an

easy means of selecting any of the individual tests that comprise the

auto-test.

Tests on the 2nd screen (not shown) include:

13 UF21

14 UF24

15 ELEMENTARY SURVEILLANCE 1

16 ELEMENTARY SURVEILLANCE 2

15 ENHANCED SURVEILLANCE

Individual tests may be reviewed for failures which are identified by

an arrow symbol.

User selects config required for test.

If the class of the transponder is unknown, the generic config may be

selected which applies to the widest limits.

The test set will automatically determine the Mode S transponder

level.

The selected config parameters may be displayed by pressing the

INFO softkey.

Eight predetermined configs are provided to meet the currently field-

ed transponder test needs.

The Eurocontrol Elementary Surveillance DAP's (Downlink Aircraft

Parameters) are displayed on two screens

Eurocontrol Enhanced Surveillance DAP's are displayed on one screen.