5 W will provide maximum achievable range in most conditions. That is because “maximum achievable range” is the horizon, which on average handheld-to-handheld is around 2 miles .24 Kas 2012
Read moreHOW FAR CAN 2 watts transmit?
So, a 2-watt walkie-talkie might broadcast within a range of 1.5 miles ; 3 watts = 2 miles; 4 watts = 2.5 miles; 5 watts = 3 miles; and so on. Actual distances may vary widely based on weather, UHF vs. VHF, etc. But these are good, general rules of thumb to go by when shopping for a new radio system.
Read moreHow far can a 10 watt radio transmit?
Thus the typical ranges with around 400 MHz frequency range with 1 W transmitter power are up to ~30 kilometers and up to ~80 kilometers with 10 W transmitter power. See sample picture of a RF link functional factors at the end of this document. The links can be extended by using repeater radio stations.
Read moreHow far can a 8 watt ham radio transmit?
Most airband radios are 5 – 8 watts and typically have a range of around 200 miles .
Read moreHow far can 5 watts transmit?
So according to our rule-of-thumb, 2 people around 6 feet tall using a 5 watt handheld two-way radio, used on flat ground with no obstacles, will have a maximum range of approximately 6 miles .
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