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2.5 PRACTICAL USE, VHF TRANSMISSION RANGE
The range of VHF communications is limited to «line of sight», because the VHF
radio waves are travelling in straight lines. A higher position of the transceiver will
then increase the coverage. This applies both to the receiving and transmitting end.
Some figures are indicated in the table below:
Table 2.1
1 Nautical mile = 1852 Meters = 1.1508 Miles
1 Statute mile = 1.609 Kilometres
This indicates that with a handheld VHF, used at sea level, the range will be approx
8 Km (5 Miles). The range will increase if the height above sea level increases, and
also if the other user in the other end is at a higher level
140 mm
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