Somehow [hvde] wound up with a CB radio that does AM and SSB on the 11 meter band. The problem was that ... parts that dealt with the intermediate frequency at 7.8 MHz. Even the transmitter ...

Because mmWave bands are much higher-frequency than bands used for 4G and 3G, they do not reach as far, nor as well through solid objects. A typical mmWave base station ("tower") only covers one ...