[kevindqc]

My understanding of this is that the company wants to use L band, which is the designation for the range of frequencies in the radio spectrum from 1 to 2 gigahertz (GHz)

Doesn't 5G use higher frequency than that?

Is the company, a satellite company, trying to use their satellites to provide 5G or something? So if the interference starts at the satellites, it could affect other parts of the world?

>“We have presented to the FCC a proposal to utilize our terrestrial midband spectrum as a greenfield opportunity that is aligned with the commission’s stated goals of providing the foundation of the 5G future,” explained Doug Smith, Ligado president and CEO. “By deploying 40 megahertz of smart capacity on midband spectrum, we can create a model of at least a partial 5G network — a next-generation, hybrid satellite-terrestrial network — that will enable 5G use cases and mobile applications that require ultra-reliable, highly secure and pervasive connectivity.”

[madengr]

5G is a very broad term, which is supposed to offer 10x performance in all metrics over 4G.

This seems to be the same issue when they were called Light Squared. The L-band was to be used for terrestrial base stations with very high power transmitters. The issue is that, even though several MHz away, from the GPS carrier, the transmissions will compress the LNA on GPS receivers with poor or little filtering, desensitizing the GPS receiver.

Most civilian stuff now has decent filtering prior to the LNA so it can co-exist with all the other wireless crap crammed in your phone.

I’m an RF EE and do a lot with GPS.