System Description
SystemDescriptionandInstallationManualforRangeFinder ICD10000‐01
©SagetechCorporation2018ConfidentialProprietaryExportControlled Page107of130
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
Table8‐66ModeAInterrogationResponseMessagePayloadStructureExampleData
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
44‐byteresponsesfromaModeAInterrogation. [0000000000010000000002
0000000000]
Checksum 8‐bitarithmeticsumofmessagefromStartBytetolastbyteofthePayloadData. [5E]