TIM-LC Datasheet, PDF (8/15 Pages) List of Unclassifed Manufacturers – GPS Receiver Module

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1.8 Antenna
This!GPS!receiver!is!designed!for!use!with!active!antennas.!!An!antenna!supervisor!is!provided.!!If!activated,!the!
GPS! receiver! is! capable! of! detecting! short! circuits! to! the! active! antenna! by! checking! the! bias! voltage! level! and!
can!shut!down!the!voltage!bias!immediately.!!A!series!resistor!is!needed!in!front!of!the!V_ANT!input.!!UBX!and!
NMEA!messages!are!provided!to!report!the!condition!of!the!antenna!supply.!!Open!circuit!detection!can!also!be!
supported!with!an!additional!external!circuit.!!For!details,!please!refer!to!the!ANTARIS System Integration Manual!
[1].!
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Parameter
Specification
Antenna!Type!
!
Active!only!
Active!Antenna!
Recommendations!
Minimum!gain!
25!dB!
Maximum!noise!figure! 1.5!dB!
Maximum!gain!
60!dB!
Antenna!Supply!
!
Using!VCC_RF!
or!external!
Antenna!Supervisor!
Short!circuit!detection! Built-in!
Open!circuit!detection! Enabled!with!external!circuit!
Table 5: Antenna Specification
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TIM-LC!-!Data!Sheet!
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Functional!Description!
GPS.G3-MS3-03019-D!
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Page 8!