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GNSSANT-AJ


Overview

Anti-Jam High-Gain GNSS Antenna

The GNSSANT-AJ from Masterclock is an anti-jam high-gain antenna designed for applications in areas where elevated levels of electronic ‘noise’ in the same frequency band from interfering signals can be expected.

Pipe-mounting bracket included.

Benefits:
  • Operates under ground-based jamming
  • Circular polarisation throughout the full bandwidth
  • Superior multipath signal rejection
  • Excellent signal-to-noise ratio
  • Excellent out-of-band signal rejection
  • Increased system accuracy
  • Ideal for harsh environments

Technical

Features
  • Anti-Jam Technology
  • -10° to +15° from horizon “deaf” zone
  • Multiconstellation GNSS Single-Band
  • Great axial ratio (2.0 dB typ.)
  • Low LNA noise (3.0 dB typ.)
  • High rejection SAW filter
  • High gain LNA: 38 dB min.
  • Low current: 19 mA typ.
  • Wide voltage input range: 2.5-12 VDC
  • ESD circuit protection (15 kV)
  • IP67 weather-proof housing

Specifications

Specifications  
Architecture Dual-feed, RHCP ceramic patch
Band GPS L1, GLONASS G1, Galileo E1, BeiDou, B1, and SBAS (WAAS, EGNOS & MSAS)
Antenna Gain (at Zenith) 6.3 dBic typ. @ 90°
Axial Ratio (over full bandwidth) <2dB @zenith
   
Electrical  
Filtered LNA Frequency Bandwidth 1559 to 1606 MHz
Polarization RHCP
LNA Gain 38 dB min., across full bandwidth
Gain flatness +/- 2dB, 1559 to 1606 MHz
Out-of-Band Rejection  
<1500 MHz / >50 dB
>1640 MHZ >70 dB
VSWR (at LNA output) <1.5:1
Noise Figure 3.0 dB typ
Supply Voltage Range (over coaxial cable) 2.5 to 16V DC nominal (12 VDC rec. max)
Supply Current 19 mA typ.
ESD Circuit Protection 15 KV air discharge
Impedance 50 Ω
   
Mechanicals & Environmental  
Mechanical Size 4.0 in dia x 4.0 in H,10.0 cm dia x 10.2 cm H
Connector TNC-F (supplied with TNC-M to SMA-F adapter)
Operating /Storage Temp. Range -40 to +85 °C / -50 to +95 °C
Weight 13.0 oz , 370 g
Attachment Method ¾” (19mm) through hole mount, L bracket mount kit provided
IP Rating IP67, weather-proof enclosure
Shock Vertical axis: 50 G, other axes: 30 G
Vibration 3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G

Technical documents

Ordering information

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