System Description

System Description and Installation Manual for MXS ICD10004-01

Table 0-5 Installation Message Payload Structure Detail

ICAO Address

Byte Offset

Byte Name Field Description

ICA0

ICA0 ICA1 ICA2 ICAO Address

ICA1 0x1C

Ox2A

0xA6

0x35

0xB2

0x6A

1CA6B2

2A356A

ICA2

Participant Address Bytes:

Set 24-bit ICAO Address. Up to 6 hex characters can be entered by the user. This number is issued to

the aircraft by the registration authority for the aircraft. If assigned as octal numbers you will need to

convert to hexadecimal. If the ICAO Address is set to either all ONES or all ZEROS, the

transponder will not send out extended squitters.

Aircraft Registration

Byte Offset

Byte Name Field Description

AR0

AR0 AR1 AR2 AR3 AR4 AR5 AR6 Aircraft Registration

AR1 0x31 0x32 0x33 0x33 0x30 0x32 0x01 1233021

AR2

Aircraft Registration Bytes

Set 56-bit Aircraft Registration. This can be the tail number or registration number. Up to seven

ASCII characters can be entered. Data is sent as unsigned chars and valid ASCII characters are

outlined below:

All characters except the following are invalid.

0x20 (Space)

0x30-0x39 (0-9)

0x41-0x5A (A-Z)

The most significant bit is sent first. The ASCII characters are left-justified, and the Aircraft

Registration itself may not contain spaces. The Aircraft Registration is padded with space characters

on the right. (For reference, see DO-181e section 2.2.19.1.13)

If Aircraft Registration is not available, fill this field with space characters (0x20).

AR3

AR4

AR5

AR6