Get our free email newsletter

FCC rule bans wireless mics in 700MHz range

The Federal Communications Commission adopted a rule Jan. 15 that phases out the use of wireless microphones operating in the 700MHz spectrum.

The FCC rule takes effect June 12, which is the one-year anniversary of the switch to digital television in the U.S.

Wide swaths of the 700MHz spectrum had been used for analog television signals, which are being relinquished by broadcast stations. Some of that spectrum is to be set aside for public safety communications and commercial purposes, such as wireless broadband Internet access.

- Partner Content -

Near and Far Field Measurements with a Vector Network Analyzer

For optimal performance in over-the-air RF systems, antennas must meet specific requirements. Performance parameters like size, wind-loading, environmental ruggedness, transmission pattern, bandwidth, and power handling capability should be considered. Methods of measuring the transmission (or reception) pattern that determines antenna gain with a VNA will be examined in this article.

The FCC has determined that “these unlicensed [wireless microphone] devices cannot continue to operate in this band because they may cause harmful interference.” Such products may no longer be sold or distributed after June 12.

The FCC has set up a Web page www.fcc.gov/cgb/wirelessmicrophones at which users can find out which makes and models of wireless mics are affected by the order and whether their mics can be retuned to operate at another frequency.

 

Related Articles

Digital Sponsors

Become a Sponsor

Discover new products, review technical whitepapers, read the latest compliance news, and check out trending engineering news.

Get our email updates

What's New

- From Our Sponsors -

Sign up for the In Compliance Email Newsletter

Discover new products, review technical whitepapers, read the latest compliance news, and trending engineering news.

Close the CTA