FCC Opens GPS-Adjacent Ligado Proposal for Comment

http://www.insidegnss.com/node/4933

The Federal Communications Commission (FCC) is officially asking for
feedback on a proposal by Ligado Networks to repurpose frequencies
near the GPS band for a terrestrial broadband network. The
long-delayed public notice and comment period is a step in the
approval process, although there is no assurance that Ligado's plan
for a new wireless service � which may still cause interference to
GPS receivers � will get the go-ahead.

The current proposal is similar to ones made when the firm was still
called LightSquared but has a few additional elements. Of the two 10-megahertz bands closest to the GPS frequencies Ligado would
formally abandon the 1545�1555 MHz downlink band, leaving it the
1526�1536 MHz band for downlinks. It would also reduce the effective isotropically radiated power (EIRP) limit for this band from 42 dBW
to 32 dBW.

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