System Description

SystemDescriptionandInstallationManualforRangeFinder ICD1000001
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Range
ByteOffset ByteName FieldDescription
00 RA0 RA0 RA1 RangeData
01 RA1 0x00
0x00
0x0F
0x28
0x40
0xFF
0x00
0x01
0xFF
0x00
0x00
0xFF
0.00000000NM
0.00390625NM
15.99609375NM
40.00000000NM
64.00000000NM
255.99609375NM
Range
[AltitudeMSB][AltitudeLSB]:(MSBissentfirst)
Rangeissentinthefollowing16bitunsignednumberformat:dddddddddddddddd
Dataresolutionis0.0390625NM:lsb=2**8
Table866ModeAInterrogationResponseMessagePayloadStructureExampleData
MessageField ByteValues(original) ByteMessageContent(Hex)
StartByte AA [AA]
MessageType 0xA1
ModeAInterrogationResponseMessages [A1]
MessageID Anarbitrarynumberbetween0and255(inclusive)thatuniquelyidentifiesthe
message.
[00]
PayloadLength 10 [10]
PAY‐
LOAD
Squawk
Code/RangeX4
44byteresponsesfromaModeAInterrogation. [0000000000010000000002
0000000000]
Checksum 8bitarithmeticsumofmessagefromStartBytetolastbyteofthePayloadData. [5E]