Garmin Apollo GX50 GPS Installation Manual

Also see for APOLLO GX60: User guide Quick reference guide

Serial Interface SpecificationsApollo GX50/60/65 Installation Manual 65SL30 maintains a single remote localizer list, so each new list received will replace anyprevious list. Subsequent receptions of localizer lists for the same airport are ignored. Theremay be up to twenty entries in the remote Localizer list. Any entries past twenty will beignored.Remote Localizer List HeaderThis input command marks the beginning of a Localizer list sent by a remote device. Itspecifies the five character airport identifier associated with the localizer frequencies in thelist.Message format:“V” ................ Message Class. This is a VHF NAV message.“22” ............... Message Identifier.aaaa................ Airport identifier. Note that if the airport identifier is less than fourcharacters, then the trailing characters will be filled with spaces. AirportIdentifiers are restricted to using ASCII characters 0-9 and A-Z.Example message:$PMRRV22SLEIndicates the start of a remote localizer list associated with the airport “SLE ”.Remote Localizer InputThis input is used to input Localizer frequency data used for the remote recall function.The data consists of three characters to identify the runway associated with the localizer,followed by two characters defining the frequency.Message format:“V” ................ Message Class. This is a VHF NAV message.“23” ............... Message Identifier.iiii .................. Station or Runway identifier. This field will provide an identifier for thelocalizer which can be either the actual station identifier or a stringindicating the runway associated with the localizer. The station identifiercan be up to four characters long. A runway identifier will typically betwo numbers that indicate the runway direction followed by the character“R”, “C”, or “L” to differentiate between parallel runways (right, center,and left). Note that if either type of identifier is less then four characters,then the trailing characters will be filled in with spaces. Identifiers arerestricted to using ASCII characters 0-9 and A-Z.mk.................. Frequency: m = MHz, where m = MHz frequency – 30h, with the desiredfrequency ranging from 108 to 111 MHz, or 3Ch to 3Fh; k = (desired kHzoffset / 25 kHz) + 30h, where the desired frequency ranges from 000 to950 kHz, or the even numbers from 30h to 56h. Note that the field will bechecked to ensure that it is in range and a valid localizer frequency.