# RF (radiofrequency)

> Fields from about 100 kHz to 300 GHz, the range used by all wireless communication.

- Canonical URL: https://emfbase.com/glossary/rf
- Collection: Glossary
- Record id: `glossary:rf`
- Status: verified
- Last verified: 2026-08-12
- JSON: https://emfbase.com/api/glossary/rf

## Key values

- **Category:** physics

## Definition

Radiofrequency spans roughly 100 kHz to 300 GHz and includes broadcast, cellular, Wi-Fi, Bluetooth and radar. Above about 100 kHz the electric and magnetic components are linked, so exposure can be expressed interchangeably as electric field strength or power density, and the effect addressed by exposure limits is energy absorption and consequent heating.

## Sources

- `icnirp-2020` International Commission on Non-Ionizing Radiation Protection (2020). *Guidelines for Limiting Exposure to Electromagnetic Fields (100 kHz to 300 GHz)*. https://www.icnirp.org/en/publications/article/rf-guidelines-2020.html — guideline, link checked 2026-08-12
- `fcc-1310` U.S. Government Publishing Office (eCFR). *47 CFR § 1.1310 — Radiofrequency radiation exposure limits*. https://www.ecfr.gov/current/title-47/section-1.1310 — regulation, link checked 2026-08-12

Data licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Dataset version 2026.08.1. Retrieved from EMFBase, https://emfbase.com.

This record is reference data, not medical or legal advice. Regulatory limits, scientific guidelines and precautionary values are labelled separately and answer different questions.