47 CFR § 95.2557 - MedRadio duration of transmissions.

---
identifier: "/us/cfr/t47/s95.2557"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 95.2557 - MedRadio duration of transmissions."
title_number: 47
title_name: "Telecommunication"
section_number: "95.2557"
section_name: "MedRadio duration of transmissions."
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"
---


# 95.2557 MedRadio duration of transmissions.

For the purpose of facilitating MedRadio system operation during a MedRadio communications session, the duration of transmissions is to be limited in accordance with this section.

(a) MedRadio transmitters may transmit in the 401-406 MHz band in accordance with the provisions of § 95.2559(a) for no more than 5 seconds without the communications of data.

(b) MedRadio transmitters may transmit in the 401-406 MHz band in accordance with the provisions of § 95.2559(b)(2) and § 95.2559(b)(3) for no more than 3.6 seconds in total within a one hour time period.

(c) MedRadio transmitters may transmit in the 401-406 MHz band in accordance with the provisions of § 95.2559(b)(4) for no more than 360 milliseconds in total within a one hour time period.

(d) MedRadio programmer/control transmitters operating in the 413-419 MHz, 426-432 MHz, 438-444 MHz, and 451-457 MHz bands shall not transmit with a duty cycle greater than 3 percent.

[82 FR 41104, Aug. 29, 2017, as amended at 86 FR 53566, Sept. 28, 2021]