Anything greater than 4-6 Watts on a handheld is not safe as the antenna is too close to the body and unsafe RF levels will do damage to tissue. If you have ever grabbed an antenna while it is being transmitted on, you’ll know why they don’t make 50 Watt handhelds.
Read moreHow far can a 25 watt ham radio transmit?
For example, a 25-watt marine radio will roughly have a maximum range of 60 nautical miles (111 km) between antennas mounted on tall ships, but that same radio will only have a range of 5 nautical miles (9 km) between antennas mounted on small boats at sea level.
Read moreHow many watts does a ham radio need?
While most popular handheld ham radios use rechargeable batteries and require 5 to 8 watts of power, there are much smaller models requiring only a few milliwatts and much bigger models that need more power – as much as 1500 watts. Power is one of the two major factors that determine the range of your ham radio.
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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