Viavi AVX-10K Operation Manual page 132

Field name
Mode C ALT Compare
DF11 Address Compare
UF21 ribbon *
DF
Mode A ID Compare
DF11 Address Compare
Note: These tests are dependent on the transponder's ability to respond to a UF20 and
UF21. May result in a "NO REPLY"
Rev. 002
22135254
Test performed
Compares the altitude from the Mode C reply to the
altitude in the reply from the UF20
FAR 43 Appendix F paragraph (h)
Compares the address from the DF11 squitter to the
address in the DF20 reply
FAR 43 Appendix F paragraph (h)
Displays the DF reply to the UF21
FAR 43 Appendix F paragraph (h)
Compares the Mode 3 ID from the Mode 3 reply to the
ID in the reply from the UF21
FAR 43 Appendix F paragraph (h)
Compares the address from the DF11 squitter to the
address in the DF20 reply
FAR 43 Appendix F paragraph (h)
VIAVI
AVX-10K Operation
2022-08-25
Page 130 of 139