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47 CFR FCC Part 15 Subpart E Unlicensed Infrastructure Device Testing

This wireless 47 CFR FCC test standard determines methods of testing for unlicensed infrastructure devices. Keystone Compliance recognizes the requirements needed for wireless radio manufacturers. Meeting the ETSI, FCC, and other wireless testing specifications can be challenging. Not only do we understand the challenges, but we help guide companies through the process.

Keystone takes pride in being in constant communication throughout the entire test process. Regarded as a leader in wireless testing, Keystone Compliance assists companies in RF testing daily. We tailor each test plan to individual customer needs minimizing unnecessary costs and over-testing. Keystone’s radio testing engineers streamline the process and assist companies to achieve the compliance they require.

Request a quote to receive expert wireless testing services tailored to your specific needs. Ready to get started? We are. Contact us to see why so many companies work with us to achieve their RF testing needs. 

Summary of CFR FCC Part 15 Subpart E Wireless RF Testing

Part 15 of the 47 FCC wireless test standard describes general requirements for Unlicensed National Information Infrastructure (U-NII) devices. These devices must solely operate at the frequencies of 5.15 – 5.35 GHz, 5.47 – 5.725 GHz, and 5.725 – 5.825 GHz. 

U-NII devices are described as intentional radiators operating in the frequencies mentioned above. The device uses wideband digital modulation technologies. This provides a wide array of high data rate mobile and fixed communications for individuals, businesses, and institutions.

The requirements of this subpart only apply to the radio transmitter contained in the U-NII devices. In other aspects, the device in testing is subjected to other requirements contained in this FCC standard. This includes digital circuitry not directly connected with the radio transmitter.

Scope of CFR Unlicensed National Information Infrastructure Devices

Power limits are included in the general technical requirements for the wireless intentional radiator test. The maximum conducted output power over a specified frequency range can not exceed the lesser stated mW and dBm. The maximum conducted output is measured over any interval continuous transmission using instrumentation calibration in terms of an RMS-equivalent voltage.

Further limits include the device automatically discontinuing transmission in case of either absence of information to transmit or operational failure. This does not include the transmission of control or signaling information. Nor does it include the use of repetitive codes used by certain digital technologies.

Manufacturers of this type of wireless device are responsible for ensuring frequency stability. Emissions must be maintained within the band of operation under all conditions of normal operations.

Expert 47 CFR Wireless Unlicensed Infrastructure Device Lab Testing

In addition to wireless intentional radiator testing, Keystone has a full scope of expertise including simultaneous transmitters, pre-approved radio modules, and licensed radios. Our team strives to give our customers more time and energy on product development instead of testing.

If you are ready to start your radio frequency wireless testing, please request a quote. Have a question about 47 CFR unlicensed information infrastructure device compliance? Contact us or call (724) 657-9940 and we will determine the best course of action.