Directional antenna (log-periodic or horn)
Used with an RF meter or analyser to find the bearing of a dominant source, distinguishing a tower on one azimuth from a neighbour's access point on another.
antenna dependent
Last verified 12 August 2026.
Also searched as: log periodic antenna, yagi, horn antenna
- Band covered
- antenna dependent
- Quantities measured
- power density
- Typical price
- $100–$2000
Detects
- Direction of arrival of the dominant signal
- Whether shielding one facade will help
Cannot detect
- Isotropic exposure — a directional antenna deliberately understates everything off-axis
What to insist on
- Published antenna factor across the band, so readings convert to field strength
- Frequency coverage matched to the meter
Related records
- RF spectrum analyser
Resolves a reading into its constituent services and frequencies — the only way to attribute an RF level to a specific band, operator or device.
Instruments
Sources
- fcc-oet65 OET Bulletin 65: Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields — Federal Communications Commission, Office of Engineering and Technology, 1997. government, link checked 2026-08-12.
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