RF & antennas
A better radio location can matter as much as the radio itself. Treat antenna work as a field problem: document what changed and test the result.
Start with the basics
Height
More useful height can improve line of sight, but the best location depends on terrain, buildings, trees, and the rest of the network.
Antenna
Use an antenna intended for the frequency and connector arrangement of your radio. Record the antenna model or type when documenting a test.
Cable
Long or poor-quality coax introduces loss. Keep feedlines practical and use appropriate connectors.
Mounting
Antenna orientation, nearby metal, enclosure materials, and the physical mounting location can all affect results.
Line of sight
Do not treat a map distance as a guaranteed radio range. Terrain and obstructions matter.
Field-test method
Change one meaningful variable at a time when possible:
- Record the starting configuration.
- Record the location and terrain.
- Make a repeatable test.
- Record the result and available radio metrics.
- Change one variable.
- Repeat.
Safety
Follow local rules and manufacturer guidance for mounting, electrical work, towers, roofs, vehicles, and antennas. Do not create an unsafe installation just to gain height.
Field note template
Radio:
Firmware:
Antenna:
Mounting:
Power:
Route / area:
Terrain:
Conditions:
Distance:
Result:
Lessons: