GeoAstra ANT308 L1, L2 Dual band RTK High-Precision Active Helical Antenna
GeoAstra ANT308 L1, L2 Dual band RTK High-Precision Active Helical Antenna
GeoAstra ANT308 L1, L2 Dual band RTK High-Precision Active Helical Antenna

GeoAstra ANT308 L1, L2 Dual band RTK High-Precision Active Helical Antenna

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$74.00
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The GeoAstra ANT308 is a state-of-the-art multi-frequency active helical antenna designed to deliver high precision and reliability for GNSS applications. Incorporating advanced multi-arm spiral technology, this antenna supports dual-band satellite signal reception (L1 and L2) from GPS, GLONASS, Beidou, and Galileo systems. It is tailored to meet the demands of modern multi-system compatibility and high-precision requirements, making it an ideal choice for handheld GNSS positioning equipment, UAVs, navigation, and other high-accuracy GNSS receiver applications.

 

Features

Multi-Arm Spiral Technology: Ensures right-handed circular polarization and stable phase center performance, reducing measurement errors.

High Gain and Minimal Gain Roll-Off: Provides excellent reception for low elevation satellite signals, increasing the number of available satellites and enhancing positioning accuracy.

Ingenious Low Noise, High Gain Amplification: Built-in low noise amplifier (LNA) with pre-filtering technology effectively suppresses out-of-band interference signals, ensuring high signal quality and system reliability.

Compact and Lightweight Design: Small size and light weight make the antenna easy to carry and install, ideal for portable and field applications.

Durable and Reliable: IP67-rated enclosure ensures the antenna is dust-tight and water-resistant, suitable for long-term field operations.


Technical Specifications:

Signal Received

GPS: L1/L2

GLONASS: L1/L2

Galileo: E1/E5b

BEIDOU: B1/B2

QZSS: L1

SBAS: L1

Nominal Impedance

50Ω

Polarization

RHCP (Right-Hand Circular Polarization)

Axial Ratio

≤1.5 dB

Azimuth Coverage

360°

Working Frequency

1197-1278 MHz

1559-1606 MHz

LNA Feature

LNA Gain: 35 ± 3 dB (Typ. @ 25°C)

Noise Figure: ≤ 1.5 dB (@ 25°C, Typ.)

Output/Input VSWR: ≤ 1.8:1 typ., 2.0:1 max

Operation Voltage: 3.0 ~ 16 VDC

Operation Current: < 45 mA

Mechanicals & Environmental

Dimensions: 27.8 mm * 56 mm

Weight: 18 g

Connector: SMA-J

Operating Temperature: -40°C to +85°C

Storage Temperature: -40°C to +85°C

Humidity: 95% non-condensing


Dimensions (mm):