20-7009

Active GPS Patch Antenna

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20 7009 5K 3 Medium

GPS L1 / L2 P & M-Code CRPA Antenna - 20-7009

The 20-7009 Four Element CRPA Antenna is a miniature four element Global Positioning System (GPS) Controlled Reception Pattern Array (CRPA) antenna designed primarily for airborne rotary wing and ground-based operations. The 20-7009 consists of four light-weight, temperature stable radiating elements which operate with nominally hemispherical coverage in the GPS L1 and L2 bands. The array is available in a variety of options, including passive and active configurations. The active configuration contains four low-noise amplifiers protected by filters, providing rejection of unwanted out-of-band signals, and limiters which provide protection from high power signals. The active CRPA is designed to work in conjunction with a compatible Chelton Digital Antenna Control Unit (DACU), which houses the anti-jam electronics functionality.

  • Interference Rejection
  • Jamming Resistance
  • Navigation Accuracy
  • M-code
  • Small Size
  • Low Mass

Specifications

  • Electrical Specs
  • Mechanical Specs
  • Standard Specs

Electrical Specs

Minimum Frequency
1215.6
Maximum Frequency
1587.42
Impedence
50
Return Loss VSWR
< 1.8:1
Gain
25.25 dB ± 1.75 dB and 28 dB ± 1.5 dB at the L1 and L2 band centres respectively at 23°C.
Polarization
RHCP
Radiation Pattern Azimuth
Radiation Pattern Elevation
Peak Power Watts
Average Power Watts

Mechanical Specs

Full Dimensions LxWxH mm
114.3 x 114.3 x 43.5
Height Above Base Plate mm
43.5
Mass kg
0.5
Connector Type
SMA female connectors

Standard Specs

Altitude ft
80000
Continuous Operating Temperature Min - C
40
Continuous Operating Temperature Max C
71
Vibration
Lightning
Standards
14043 (2)

Get in touch

Contact office
Chelton Limited, Marlow
The Chelton Centre
Fourth Avenue
Marlow
Buckinghamshire
SL7 1TF
United Kingdom
CAGE Code: U1907