What is the typical range of a VHF survival radio when held at about 4 feet above average water level?

The range of a VHF survival radio is typically influenced by several factors, including antenna height, terrain, and environmental conditions. When the radio is held at approximately 4 feet above the average water level, the line-of-sight communication is most effective due to the curvature of the Earth and the optimal placement of the radio above any surface obstructions.

At 4 feet in elevation, the radio can achieve a range of about 2.8 miles, which is a standard estimate for a VHF radio operating under ideal conditions. This height allows for better signal propagation, enabling the radio signal to reach potential receivers farther away than it would if held lower to the water’s surface. The effectiveness of the VHF radio is critical, especially in survival situations where clear communication can significantly increase the chances of rescue.

While lower ranges such as 1 mile or 2 miles may be noted, they do not account for the specific conditions that allow for greater reach. Therefore, the estimate of 2.8 miles aligns closely with the expected performance of VHF radios under the specified conditions, making it the most accurate choice in this scenario.