Public Safety / Land Mobile Radio places its own demands on the antenna: the link budget, the interference environment and the physical install all differ from a generic stacking yagi antennas deployment. This page works through those requirements and maps them onto specific models.
What the application demands
Public-safety links have to work on the worst day, not the average one. That means conservative margin, vertical polarization to match handheld radios, and hardware that keeps working after a lightning event.
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.
- Fit an in-line surge arrestor at the building entry and bond the mast to the site grounding system.
Models used for Public Safety / Land Mobile Radio
| Model | Band (MHz) | Gain | Polarization | Length | Connector |
|---|---|---|---|---|---|
| AW-YG0890-18 | 824–960 | 18 dBi | Vertical | 1290 mm | N-Female |
| AW-YG0450-12 | 450–470 | 12 dBi | Vertical | 870 mm | N-Female |
| AW-YG0890-12 | 824–960 | 12 dBi | Vertical | 465 mm | N-Female |
| AW-YG2400-18 | 2400–2483 | 18 dBi | Vertical | 580 mm | N-Female |
| AW-YG1922-16 | 1720–2170 | 16 dBi | Vertical | 610 mm | N-Female |
| AW-YG0433-12 | 428–438 | 12 dBi | Vertical | 920 mm | N-Female |
| AW-PA7090-V18B65 | 698–960 | 18 dBi | Vertical | 2570 mm | N-Female |
| AW-PA7090-V15B65 | 698–960 | 15 dBi | Vertical | 1360 mm | N-Female |
| AW-LP4386-13 | 430–860 | 13 dBi | Vertical | 1450 mm | N-Female |
| AW-FG0890-12 | 824–890 | 12 dBi | Vertical | 1550 mm | N-Female |
| AW-PA7090-V12B65 | 698–960 | 12 dBi | Vertical | 720 mm | N-Female |
| AW-PA7090-V11B90 | 698–960 | 11 dBi | Vertical | 720 mm | N-Female |
Grounding and surge protection
A stacked array presents more metal at height; bond the support structure and install a surge arrestor on the combined feed.