Overview
The document provides a detailed description of two GNSS antennas, the A220GR and C220GR2, designed for high-accuracy positioning and navigation applications. These antennas are part of the CHC GNSS Infrastructure series, offering solutions for geodetic reference stations, marine surveys, machine control, GIS, and mapping.

Specifications
A220GR
- Type: Geodetic Antenna
- Supported Systems: GPS L1 + L2, GLONASS L1 + L2, BDS, GALILEO, SBAS
- Frequency: 40 dB
- LNA Voltage: 3 V DC to 18 V DC
- LNA Current: ≤ 45 mA
- Polarization: Right Hand Circular
- Axial Ratio: ≤ 3 dB
- Phase Center Accuracy: ± 2 mm
- Impedance: 50 Ohms
- VSWR: ≤ 2.0
- Noise: ≤ 2 dB
- Dimensions: 147 mm x 62 mm
- Weight: 400 g
- RF Connector: TNC
- Operating Temperature: -40°C to +85°C
- Threading: 5''/8''
- Construction: None
- Ingress Protection: IP67

C220GR2
- Type: Choke Ring Antenna (Radome)
- Supported Systems: GPS L1 + L2 + L5, GLONASS L1 + L2 + L3, BDS B1, B2, B3, GALILEO E1, E5A, E5B, E6, SBAS
- Frequency: 50 dB
- LNA Voltage: 3 V DC to 18 V DC
- LNA Current: ≤ 50 mA
- Polarization: Right Hand Circular
- Axial Ratio: ≤ 3 dB
- Phase Center Accuracy: ± 1 mm
- Impedance: 50 Ohms
- VSWR: ≤ 2.0
- Noise: ≤ 2 dB
- Dimensions: 322 mm x 261 mm
- Weight: 4.9 kg
- RF Connector: TNC
- Operating Temperature: -40°C to +85°C
- Threading: 5''/8''
- Construction: Copper alloy
- Ingress Protection: IP67

Standards and Compliance
Both antennas comply with the MIL-STD-810G standard for vibration and are IP67 rated for waterproof and dustproof protection, allowing temporary immersion to a depth of 1 meter.

Manufacturer Information
These products are manufactured by Shanghai Huace Navigation Technology Ltd., with contact information provided for further inquiries.