47 CFR § 95.939 - External radio frequency power amplifiers prohibited.
---
identifier: "/us/cfr/t47/s95.939"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 95.939 - External radio frequency power amplifiers prohibited."
title_number: 47
title_name: "Telecommunication"
section_number: "95.939"
section_name: "External radio frequency power amplifiers prohibited."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "D"
subchapter_name: "SAFETY AND SPECIAL RADIO SERVICES"
part_number: "95"
part_name: "PERSONAL RADIO SERVICES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "47 U.S.C. 154, 303, 307."
regulatory_source: "82 FR 41104, Aug. 29, 2017, unless otherwise noted."
cfr_part: "95"
---
# 95.939 External radio frequency power amplifiers prohibited.
The operator of a CBRS station must not use an external radio frequency power amplifier to increase the transmitting power of that CBRS station under any circumstances. There are no exceptions to this rule.
(a) The FCC will presume that the operator of a CBRS station has used an external radio frequency power amplifier in violation of this section if it is in the operator's possession or on the operator's premises and there is other evidence that the CBRS station has been operated with more transmitting power than allowed by § 95.967.
(b) [Reserved]
[82 FR 41104, Aug. 29, 2017, as amended at 90 FR 57711, Dec. 12, 2025]