Introduction
Ham radios are portable radios that can be used to communicate with other ham radio operators, as well as with emergency services in the event of an emergency. Ham radios come in a variety of shapes and sizes, and they can transmit at a variety of different power levels.
The power level of a ham radio is measured in watts, and the transmit distance is affected by the power level of the radio. In general, the higher the power level, the further the ham radio will be able to transmit. A 100 watt ham radio will be able to transmit further than a 50 watt ham radio, for example.
However, there are a number of other factors that can affect the transmit distance of a ham radio, including the type of antenna that is being used, as well as any obstacles that might be in the way of the signal. With all of these factors taken into account, a 100 watt ham radio should be able to transmit up to about 25 miles under ideal conditions.
Theoretical limits
The theoretical limit for a 100W ham radio transmit power is about 160km or 100 miles. This range can be achieved under ideal conditions, with no obstacles between the transmitting and receiving antennas. In reality, the range will be much shorter due to obstacles (including the curvature of the earth) and interference from other radio signals.
Practical limits
There are numerous practical limits to how far a typical 100 watt ham radio can transmit. The most important limit is the horizon, since the radio waves will eventually hit the ground and be reflected back toward the transmitter. The horizon is about 3 miles away for a person standing at sea level, so a 100 watt ham radio will have a maximum range of about 6 miles under ideal conditions.
Other practical limits include obstacles such as trees and buildings, which can block or reflect the radio waves. Additionally, the ionosphere can refract or bend radio waves, which can cause them to travel farther than they would otherwise. However, this phenomenon is unpredictable and can also cause radio waves to travel less far than expected.
Factors that affect range
There are several factors that will affect how far your 100 watt ham radio will transmit. The most important factor is the height of your antenna. The higher your antenna is, the further your signal will reach. Another important factor is the type of terrain between you and your destination. If there are hills or mountains in the way, your signal will be blocked and you will not be able to communicate as far as you could if there was a clear path. Additionally, if there are buildings or other large structures between you and your destination, they will also block your signal and reduce the range.
Conclusion
After doing some research, we have found that a 100W ham radio can transmit up to 1500 miles.