---
kind: "section"
citation: "47 C.F.R. § 27.1508"
title: "47"
number: "27.1508"
heading: "Field strength limit."
url: "https://uscodex.org/cfr/47/27.1508"
---

# §27.1508. Field strength limit.


The predicted or measured median field strength must not exceed 40 dBµV/m at any given point along the geographic license boundary, unless the affected licensee agrees to a different field strength. This value applies to both the initially offered service areas and to partitioned service areas.


## Notes

### Source

Source: 85 FR 43134, July 16, 2020, unless otherwise noted.

### Authority

Authority: 47 U.S.C. 154, 301, 302a, 303, 307, 309, 332, 336, 337, 1403, 1404, 1451, and 1452, unless otherwise noted.

### Source

Source: 62 FR 9658, Mar. 3, 1997, unless otherwise noted.