47 CFR 2.944 - Software defined radios.

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§ 2.944 Software defined radios.

(a) Manufacturers must take steps to ensure that only software that has been approved with a software defined radio can be loaded into the radio. The software must not allow the user to operate the transmitter with operating frequencies, output power, modulation types or other radio frequency parameters outside those that were approved. Manufacturers may use means including, but not limited to the use of a private network that allows only authenticated users to download software, electronic signatures in software or coding in hardware that is decoded by software to verify that new software can be legally loaded into a device to meet these requirements and must describe the methods in their application for equipment authorization.

(b) Any radio in which the software is designed or expected to be modified by a party other than the manufacturer and would affect the operating parameters of frequency range, modulation type or maximum output power (either radiated or conducted), or the circumstances under which the transmitter operates in accordance with Commission rules, must comply with the requirements in paragraph (a) of this section and must be certified as a software defined radio.

(c) Applications for certification of software defined radios must include a high level operational description or flow diagram of the software that controls the radio frequency operating parameters.

[70 FR 23039, May 4, 2005]

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United States Code
Statutes at Large

Title 47 published on 2015-10-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 47 CFR Part 2 after this date.

  • 2015-11-30; vol. 80 # 229 - Monday, November 30, 2015
    1. 80 FR 74742 - Petitions for Reconsideration of Action in Rulemaking Proceeding
      GPO FDSys XML | Text
      Petitions for reconsideration.
      Oppositions to the Petitions must be filed on or before December 15, 2015. Replies to an opposition must be filed on or before December 28, 2015.
      47 CFR Parts 0, 1, 2 and 15
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