Telematics / V2X places its own demands on the antenna: the link budget, the interference environment and the physical install all differ from a generic marine and vessel antennas deployment. This page works through those requirements and maps them onto specific models.
What the application demands
A vehicle antenna is a moving platform on a metal ground plane, exposed to vibration, wash and speed. Pattern uniformity in azimuth matters because the vehicle heading is arbitrary, and the mount has to survive years of it.
Turning that into a specification
- Take the operating band from the radio datasheet, including any guard at the band edges.
- Decide the coverage shape first, omnidirectional or sector, and only then take the highest gain that still fits it.
- Measure the feedline run and subtract its loss before comparing antenna gain figures.
- Confirm the connector on the radio and order the matching interface rather than adapting in the field.
- Confirm the roof material: a magnetic or suction mount needs steel, and an aluminium or composite roof needs a bolt-through part with its own ground plane.
Models used for Telematics / V2X
| Model | Band (MHz) | Gain | Polarization | Length | Connector |
|---|---|---|---|---|---|
| AW-GP1575-28 | 1575–1606 | 28 dBi | RHCP | 50 mm | SMA-Male |
| AW-FGS0827-8 | 824–960 | 8 dBi | Vertical | 1100 mm | N-Female |
| AW-MG0960-3 | 824–960 | 3 dBi | Vertical | 160 mm | SMA-Male |
| AW-MG1880-3 | 890–1880 | 3 dBi | Vertical | 160 mm | SMA-Male |
| AW-MG2400-3 | 2400–2500 | 3 dBi | Vertical | 160 mm | SMA-Male |
| AW-CP-BD-2535 | 1561–1606 | 28 dBi | RHCP | 25 mm | IPEX MHF (U.FL) |
| AW-CP-GPS-2525A | 1575–1576 | 28 dBi | RHCP | 25 mm | IPEX MHF (U.FL) |
| AW-SCF0827-6 | 698–2700 | 6 dBi | Vertical | 420 mm | SMA-Male |
| AW-SC0827-5 | 698–2700 | 5 dBi | Vertical | 310 mm | SMA-Male |
| AW-SCG0827-5 | 698–2700 | 5 dBi | Vertical | 240 mm | SMA-Male |
| AW-SCW0827-5 | 698–2700 | 5 dBi | Vertical | 300 mm | SMA-Male |
| AW-CMB-5-5GGPSWIFI | 617–5850 | 4x4 / 28 / 2x5 dBi | Vertical + RHCP | 150 mm | SMA-Male ×7 |
Grounding and surge protection
A vessel's mast-top antenna is a primary lightning attachment point and must tie into the bonding system; surge arrestors protect below-deck electronics.