47 CFR § 73.49 - AM transmission system fencing requirements.

---
identifier: "/us/cfr/t47/s73.49"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 73.49 - AM transmission system fencing requirements."
title_number: 47
title_name: "Telecommunication"
section_number: "73.49"
section_name: "AM transmission system fencing requirements."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "C"
subchapter_name: "BROADCAST RADIO SERVICES"
part_number: "73"
part_name: "RADIO BROADCAST 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, 155, 301, 303, 307, 309, 310, 334, 336, 339."
cfr_part: "73"
---


# 73.49 AM transmission system fencing requirements.

Antenna towers having radio frequency potential at the base (series fed, folded unipole, and insulated base antennas) must be enclosed within effective locked fences or other enclosures. Ready access must be provided to each antenna tower base for meter reading and maintenance purposes at all times. However, individual tower fences need not be installed if the towers are contained within a protective property fence.

[51 FR 2707, Jan. 21, 1986]