Wireless

Fixed Wireless in Cities

I am often asked by cities about the option of building a municipal fixed wireless broadband network. As a reminder, fixed wireless, in this case, is not a cellular system but is the point-to-multipoint technology used by wireless Internet service providers (WISPs). My response has been that it's possible but that the resulting network is probably not going to satisfy the performance goals most cities have in mind.

Starlink Comes to Africa - Markets and Competition

SpaceX Starlink Internet service will be available in several African nations in the second quarter of this year, and the price in Nigeria has been announced -- $600 for the "residential" terminal and a monthly fee of $43. Is there a market for Starlink at that price in Nigeria and other Sub-Saharan African nations? The IMF projects a GDP per capita of $2,580 for Nigeria this year (and $1,900 in Sub-Saharan Africa and $2,260 for Africa overall) so the market for individual consumer accounts will be much smaller than in what the IMF refers to as "advanced economies."

Getting Serious About Satellite Texting

One of the more interesting telecom announcements at the CES electronics show in Vegas was the announcement from the partnership of Qualcomm and Iridium of plans to bring satellite texting capability to many more cell phones and other devices. We've already seen a few other announcements recently of the ability to make emergency text calls when out of reach of cell coverage.

The Disappointment of 5G

Karl Bode recently wrote an excellent article highlighting the overhyping of wireless technologies. He's right, and for the last twenty years, we've been told that a world-changing wireless technology is coming soon, but none ever materialized. No wireless technology has been a bigger flop than 5G when comparing the hype to the eventual reality. The hype for 5G was amazingly over-the-top.

Hole in Space - the Mother of All Video Chats

New technology enables new art forms and artists Kit Galloway and Sherrie Rabinowitz (K&S) began working with geostationary satellite links in 1977. Their first work was an experiment in remote dance and music. Video of dancers at The Goddard Space Flight Center in Maryland and an educational television center in California was transmitted to a central control studio where a composite was formed and sent back to monitors the dancers could see.

SpaceX Launches “Second Generation” Starlink Satellites

In interviews last Spring, Elon Musk said the data throughput of the next version of Starlink satellite (Gen2) would be almost an order of magnitude greater than that of the first generation and that the new Starship rocket would be needed to launch them. Regulatory and engineering delays slowed Starship's progress, so the Gen2 satellites Musk referred to at the time have not yet been launched.

A New Definition of 6G

We now know how wireless carriers are going to continue the string of new G generations of cellular technology. 5G was originally defined to include spectrum up to 90 GHz or 100 GHz. In the last few years, international standards bodies have been developing new 6G standards in what is called the terahertz wavelengths between 100 GHz and 1 THz.

Starlink Now Covers All of Australia

My colleague, Robert Smallwood in Geraldton, WA at the Department of Primary Industries and Regional Development (WA Government), has been testing Starlink now since March 2022 and he reports on his experience and in general, provides updates about Starlink and its mother company, SpaceX. He allowed me to use his report to write this article.

The Short History of the Internet: From ARPANET to the Metaverse

Last Saturday marked the 53rd anniversary of the Internet. While the vast majority of its five billion users have been online for less than a decade, the Internet was taken into use on October 29th, 1969, when two computers connected to the ARPANET exchanged a message. Although the Internet has been around for a while, it remained below most people's radar until the late 1990s when the dot com boom started.

Using AM Radio Towers in Designing Wireless Networks

One existing resource that is often overlooked in designing wireless networks is AM radio towers. For the most part, companies deploying fixed wireless and microwave antenna have avoided these towers. This is due to the nature of AM radio, which transmits at such a low frequency that the entire tower is effectively used as the transmitting antenna. The entire tower is energized with the AM signal, and the typical AM tower sits on a base insulator that blocks the tower from being grounded.