When you're sending data from a spacecraft you will have a so-called carrier signal. It's basically broadcasting a tone—if you think of it in audio terms— broadcasting as strong as it can get ...
The difference is in how the carrier wave is modulated, or altered. With AM radio, the amplitude, or overall strength, of the signal is varied to incorporate the sound information. With FM ...
The Raspberry Pi Compute Module 4 has a built-in WiFi antenna, but that doesn’t mean it will work well for you – the physical properties of the carrier board impact your signal quality ...
Package carriers are starting to tag some shipments with devices that emit signals tracking the exact whereabouts of parcels in transit, similar to how smartphones cast a signal marking their location ...