- Multi-constellation and Multi-fre-quency
- Superior Antenna Phase Center
- Excellent Polar Axis Ratio Per-formance Multipath Suppression
UA91 adopts a high-gain broadband antenna to receive GNSS signals such as GPS, BDS, GLONASS, Galileo, QZSS and L-Band. The scheme of multi-stage 3D choke coils with completely symmetrical distribution is adopted to achieve higher phase center stability and excellent anti-multipath interference performance. It has excellent performance that the phase center coincides with the mechanical center
| Antenna Performance |
| Frequency | GPS: L1/L2/L5
BDS: B1/B2/B3
GLONASS: G1/G2/G3
GALILEO: E1/E2/E5/E6C
QZSS: L1/L2/L5
SBAS
L-Band |
| Polarization | Right-handed circular |
| Axis ratio | ≤2dB @Axial |
| Antenna Gain | ≥ 5dBi @Axial
≥ -3dBi @Elevation angle 20 |
| Out-of-roundness | ≤ 1dB @ Elevation angle 20 |
| Front-to-back Ratio | ≥ 30dB |
| Rolloff-factor | ≥ 13dB |
| Phase Center Offset | ± 1.5mm |
| Low Noise Amplifier Performance |
| Frequency Range | 1525 ~ 1615 MHz
1182 ~ 1278 MHz |
| Characteristic Impedance | 50 |
| VSWR | ≤ 1.3:1 |
| Noise Figure | 1.6dB Typically @25 |
| LNA Gain | 40 ± 2dB |
| In-band Flatness | ± 1.5dB |
| Out-of-band Suppression | L1 ± 200 MHz >40dBc
L2 ± 200 MHz >50dBc |
| Differential Transmission Delay | ≤ 5ns (L1-L2) |
| Antenna Transmission Delay | 15ns typically |
| Voltage | 3.3 - 12 VDC |
| Current | 35mA typical |
| Environmental performance |
| Operating Temperature | -55℃ ~ +85℃ |
| Storage Temperature | -55℃ ~ +100℃ |
| Humidity | Up to 100% |
| Water/Dust Proof | IP67 |
| Physical |
| Dimension | Φ370 mm x H263 mm |
| Weight | 7.7 Kg |
| Antenna Interface | TNC-F |
| Radome Material | FRP |
| Base Material | Aluminum-magnesium alloy |
| Mount | 5/8-11UNC-2B |
