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GPSAntenna Model 531 Rev 2
Technical Specifications
- ELECTRICAL -
3 dB pass band: L1: 1575 ± 5 MHz
Out-of-band rejection: f
c
- 50 MHz: 18 dB f
c
+ 50 MHz: 56 dB
f
c
- 100 MHz: 36 dB f
c
+ 100 MHz: 44 dB
f
c
- 150 MHz: 45 dB f
c
+ 150 MHz: 44 dB
Antenna elev. pattern: θ = 90°: + 6.8 dBic (typical)
(90° = zenith) 20° ≤ θ < 90°: - 0.7 dBic to 6.8 dBic (typical)
5° ≤ θ < 20°: - 4.5 dBic to 1.0 dBic (typical)
0° ≤ θ < 5°: - 7.0 dBic to -2.0 dBic (typical)
θ = 0°: - 7.0 dBic to -2.0 dBic (typical)
LNA gain: 26 ± 2 dB
Polarization: Right-hand circular
Noise figure: 2.2 dB
Axial ratio: θ = 90°: 2.0 dB max.
(90° = zenith) 30° ≤ θ < 90°: 5.0 dB max.
15° ≤ θ < 30°: 8.0 dB max.
5° ≤ θ < 15°: 11.0 dB max.
0° ≤ θ < 5°: 12.0 dB max.
Nominal impedance: 50 Ω
VSWR: ≤ 2.0:1
Power requirements: ≤ 25 mA @ + 4.25 to + 18.0 V DC
18 mA (typical) @ 5.0 V DC
Power handling: ≤ 1 W
- MECHANICAL & ENVIRONMENTAL -
Finish: Weatherable polymer
Weight: ≈ 375 g
Altitude: ≤ 3 658 m (12,000')
Temperature: -40 °C to +70 °C
Mechanical Drawings
178
79
MAX
TNC FEMALE
CONNECTOR
GROUND PLANE
LEVEL
(BLUE LINE)
PHASE CENTRE
L1=51 MM
PHASE CENTRE
NAMEPLATE
AeroAntenna Technology Inc.
Chatsworth, Ca.U.S.A
GPS ANTENNA
P/N AT2775-19NK S/N
3
f
Top View
Side View
Bottom View
LOGO
(ALIGN TOWARDS NORTH)
5/8 - 11 UNC ADAPTOR
L1 Antenna
Phase Centre Offset
51mm
Rev. N
PHASE CENTRE LABEL
(Illustration only, may change)
Note: All dimensions in millimetres except for thread size.