A solid set of walkie-talkies can be essential for good backcountry comms, and we've tested the spread to nail down the best ...

VHF/UHF Commercial Grade Dual Band Handheld Transceiver - Compact Design, Measuring W 2.1” x H 4.1” x D 1.2” (52.5 x 104.5 x 31 mm) - Rugged Construction; Meets IP54 Rating (Dust/Water ...

in Kenya has studied the extent to which the performance of a PV system can be affected by the presence of nearby electromagnetic emission sources such as telecoms base stations or TV/radio antennas.