System Description

SystemDescriptionandInstallationManualforRangeFinder ICD10000‐01
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©SagetechCorporation2018ConfidentialProprietaryExportControlled Page110of130
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8.4.12 ATCRBSModeSAll‐CallInterrogationResponseMessages:Type0xA3
TheATCRBSModeSAll‐CallInterrogationResponseMessageistransmittedfromRangeFinderinresponseto
anATCRBSModeSAll‐Call(orATCRBSModeSAll‐CallWhisper‐Shout)interrogationcommandmessage.
IftheRangeFinderisabletoperformtherequestedinterrogation,thenthismessagecontainsthedata
stored
inmemoryfromthelastvalidrepliestointerrogation.Theinterrogationresponsemessagewill varyinlength
dependentuponthenumberofresponsesfromtheinterrogation.Notethatamaximumof42targetscanbe
reported in a single message; if the numberof targets exceeds 42, multiple response
messages will  be sent.
Thenumberoftargetsbeingreportedinamessageisinferredthroughthepayloadlength,whichisfollowed
bythedataforeachresponse.
AnoverviewofATCRBSModeSAll‐CallInterrogationResponseMessagesisshowninTable8‐70.Table8‐71
providesthedetailed
messagedefinition.ForanexampleoftheuseofthismessageseeTable8‐72. 
Table8‐70ATCRBSModeSAll‐CallInterrogationResponsePayloadStructureOverview
PayloadIndex MessageField Numberbytes
00 AircraftAddress 3
03 TransponderCapability 1
04 Range 2
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Table8‐71ATCRBSModeSAll‐CallInterrogationResponseMessagePayloadStructureDetail
AircraftAddress
ByteOffset ByteName FieldDescription
00 AA0 AA0 AA1 AA2 AircraftAddress
01 AA1
0x1C
0x2A
0xA6
0x35
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0xB2
0x6A
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1CA6B2
2A356A
02 AA2
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ParticipantAddressBytes
Containstheaddressofthetransmittinginstallation.Thesefieldscontainuptosix(6)hexcharacters.
ThiscanbetheICAOaddressorsomeothertypeofaddress.
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