Ham Radio Hobbyists Are Connecting the Caribbean After Hurricane Maria

Most Puerto Ricans are just trying to reach family members. Few have access to Wi-Fi hotspots or electrical outlets. Sustained winds of 155 mph obliterated 95 percent of Puerto Rico's wireless cell sites, leaving much of the country a deadzone. In the past week, Puerto Rico's government has received more than 110,000 outside calls, many, no doubt, from panicked relatives. Remote places like Arecibo, near the western part of Puerto Rico, were particularly hard-hit. Here, the only reliable mode of communication is radio. And amid the silence, a determined network of radio hobbyists, affectionately called "hams," is helping communities make contact.

Ham radio is an older technology, archaic by some modern standards, but highly customizable. Hobbyists must pass a test to obtain a license, so the term "amateur" is something of a misnomer. As of 2015, there were 726,275 hams in the US, and six million worldwide. These networks are remarkably resilient in bad weather, with the exception of solar storms.