47 CFR § 27.804 - Field strength limits at WMTS facility.

---
identifier: "/us/cfr/t47/s27.804"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 27.804 - Field strength limits at WMTS facility."
title_number: 47
title_name: "Telecommunication"
section_number: "27.804"
section_name: "Field strength limits at WMTS facility."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "B"
subchapter_name: "COMMON CARRIER SERVICES"
part_number: "27"
part_name: "MISCELLANEOUS WIRELESS COMMUNICATIONS SERVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "47 U.S.C. 154, 301, 302a, 303, 307, 309, 332, 336, 337, 1403, 1404, 1451, and 1452, unless otherwise noted."
regulatory_source: "62 FR 9658, Mar. 3, 1997, unless otherwise noted."
cfr_part: "27"
---


# 27.804 Field strength limits at WMTS facility.

For any operation in the 1392-1395 MHz band, the predicted or measured field strength—into the WMTS band at 1395-1400 MHz—shall not exceed 150 uV/m at the location of any registered WMTS healthcare facility. When performing measurements to determine compliance with this provision, measurement instrumentation employing an average detector and a resolution bandwidth of 1 MHz may be used, provided it accurately represents the true interference potential of the equipment.