---
kind: "section"
citation: "47 C.F.R. § 95.2557"
title: "47"
number: "95.2557"
heading: "MedRadio duration of transmissions."
url: "https://uscodex.org/cfr/47/95.2557"
---

# §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)](/cfr/47/95.2559.md?p=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)](/cfr/47/95.2559.md?p=b-2) and [§ 95.2559(b)(3)](/cfr/47/95.2559.md?p=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)](/cfr/47/95.2559.md?p=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.

## Notes

### Amendments

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

### Authority

Authority: 47 U.S.C. 154, 303, 307.

### Source

Source: 82 FR 41104, Aug. 29, 2017, unless otherwise noted.

### Amendments

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