spectrum
spectrum (5) — my Raindrop.io articles
Generated 25 Jul 2026
An interactive introduction to the chart at the heart of RF engineering.
A new triple-patch design squeezes impossible performance from a sub-millimeter antenna array, clearing the path to 6G networks and beyond.
The FCC National Broadband Map displays where Internet services are available across the United States, as reported by Internet Service Providers (ISPs) to the FCC. The map will be updated continuously to improve its accuracy through a combination of FCC verification efforts, new data from Internet providers, updates to the location data, and—importantly—information from the public.
T-Mobile spends $304 million to win over 90% of available 2.5 GHz licenses.