Many readers like to keep an ear open on radio transmissions, whether these are local amateurs, broadcast stations, even the local coastguard weather information transmissions while out on the sea during the summer months. For others, utility transmissions hold an added interest. As for myself I find an expanded coverage handheld VHF / UHF radio is extremely useful - in my professional role as a radio engineer working with various government and commercial organisations it's often invaluable as an engineering tool.
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