What’s the difference between Sub-6 and mmWave ... That means that it uses both low and high-frequency radio waves to work. This is a good thing. Lower frequency waves can travel further ...

The problem with high-frequency radio is that building a circuit on a breadboard will not work because there is too much added inductance and capacitance from the wiring that will wreak havoc on ...

A tool called the Automatic Packet Reporting System (APRS) is fairly robust in the very high frequency (VHF) part of the amateur radio spectrum, but this solution still relies on a not ...