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>>JAVAD Antenna Model: AvAnt
  • >>MODEL: AnAnt

    AvAnt is an active antenna designed in accordance with ARINC 743A requirements.
   It is available in GGD (GPS/GLONASS dual frequency L1/L2) or GG (GPS/GLONASS single frequency L1) variants.
    AvAnt provides low-noise coverage within frequency bands 1565-1615 MHz (L1) and 1217 ¨C 1265 MHz (L2). It has low-noise amplifier (LNA) integrated under the radome. LNA has excellent filters, providing out-of-band rejection. A special filter provides INMARSAT protection (stop-band 1625-1630MHz). Also LNA has fast clamping diodes in both L1 and L2 channels to prevent the device of being destroyed by high-voltage in-band jamming. DC power supply is provided through the coaxial connector.

Specifications
  Electrical
   
Frequency bands: 1565-1615 MHz (L1) and 1217 ¨C 1265 MHz (L2)
VSWR (max): 2.0:1 within both 2 bands
Impedance: 50 Ohms
Polarization: RHCP
Axial ratio: 3dB (min)
LNA Gain Power: L1 GPS: 30+1 dB
GLONASS: 29+1 dB
L2: 31+1 dB
LNA Noise Figure: L1 GPS: 2.7 dB
GLONASS: 3.2 dB
L2: 1.8 dB
Filtering stopbands: 1557 MHz 5.0 dB Min
1626.5 to 1630.0 MHz 22.0 dB Min
1650.0 to 1660.0 MHz 23.0 dB Min.
DC Power Supply: 45 mA @3.0 thru 14 VDC
  Mechanical
   
Weight: 320 g
Height: 36 mm / 1.42 in
Length: 120 mm / 4.72 in
Depth: 74.1 mm / 2.91 in
Material: COVER: GE PEI+40%GF Paint: PU
Finish: BASE: Aluminum Surface: Cromate Plate
Connector: TNC
  Environmental
   
Temperature: -50¡ãC to +70¡ãC
  Performance
         Antenna performance was checked with convex 1.2m x 2.5m ground plane meeting ARINC 743A requirements. Signal-to-noise (SNR) coverage in dB*Hz vs. elevation angle is shown on the plot below for both GPS L1 (C/A code) and L2 (P2 code) frequencies:
   
 
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