Helical GNSS antennas naturally realise RHCP (Right-Hand Circular Polarisation) characteristics through their helical structure, enabling stable and reliable reception of satellite navigation signals. With excellent reception performance for low-elevation satellite signals and high phase centre stability, helical GNSS antennas are well suited for aviation, UAV, and high-performance GNSS applications.
| FDH8006 | FDH8003A | FDH8010P | FDH8600A | FDH8002A | |
|---|---|---|---|---|---|
| Multi-band helical antenna | Multi-constellation | Multi-constellation | Multi-constellation | Multi-constellation | |
| Receiving frequency [MHz] | 1525 ~ 1615MHz & 1164 ~ 1278MHz | 1559 ~ 1606MHz | 1525 ~ 1615MHz & 1164 ~ 1278MHz | 1525 ~ 1615MHz & 1164 ~ 1278MHz | 1525 ~ 1615MHz & 1164 ~ 1278MHz |
| Gain [dB] | ≥ 2.5 dBi(Elevation angle 90°) | ≥ 1.5 dBi(Elevation angle 90°) | ≥ 3.0 dBi(Elevation angle 90°) | ≥ 2.0 dBi(Elevation angle 90°) | ≥ 2.5 dBi (Elevation angle 90°) |
| Polarisation | RHCP | RHCP | RHCP | RHCP | RHCP |
| Axial ratio [dB] | ≤ 1.5 dB (Elevation angle 90°) | ≤ 1.5 dB (Elevation angle 90°) | ≤ 1.5 dB (Elevation angle 90°) | ≤ 3.0 dB (Elevation angle 90°) | ≤ 1.5 dB(Elevation angle 90°) |
| Azimuth Coverage [°] | 360° | 360° | 360° | 360° | 360° |
| LNA Specifications | |||||
| Frequency range [MHz] | 1525 ~ 1615MHz & 1164 ~ 1278MHz | 1559 ~ 1606MHz | 1525 ~ 1615MHz & 1164 ~ 1278MHz | 1525 ~ 1615MHz & 1164 ~ 1278MHz | 1525 ~ 1615MHz & 1164 ~ 1278MHz |
| Gain [dB] | 35±3 dB | 35±3 dB | 35±3 dB | 35±3 dB | 35±3 dB |
| VSWR | < 2.0 | < 2.0 | < 1.8 | < 2.0 | < 2.5 |
| Noise figure [dB] | < 2.0 dB | < 1.5 dB | < 1.8 dB | < 2.0 dB | < 1.5 dB |
| Group delay [ns] | ≤ 5ns | ≤ 5ns | ≤ 5ns | ≤ 5ns | ≤ 5ns |
| Input voltage [VDC] | 3.3 ~ 12 VDC | 3.3 ~ 16 VDC | 3.3 ~ 12 VDC | 3.0 ~ 6.0 VDC | 3.0 ~ 12 VDC |
| Consumption current [mA] | < 45 mA | < 30 mA | < 50 mA | < 30 mA | < 45 mA |
| Size [mm] | ɸ25.2 x 33.7mm | ɸ18.5 x 50mm | ɸ40 x 82.8mm | ɸ25 x 56mm | ɸ43.5 x 40.8mm |
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