630m (472 kHz) - 10 m (29 MHz) antennas, propagation, operating, etc
22 / 126Magic band discussion - antennas, propagation, operating, etc
18 / 772m & 70cm discussion - antennas, propagation, operating, etc
20 / 13023cm, 2.4/3.4/5.7/10/24/47 GHz and above - antennas, propagation, operating, etc. Includes Optical communications, with light,
54 / 216Non band-specific propagation & Solar Cycle discussion
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