Why do the same amplifiers have different transmission ranges?

Why do the same amplifiers have different transmission ranges? In the descriptions of TX900 과 Vcan1681, I found that the quotes for 5W amplifiers are different at 30km and 50km. The quotes for the same 10W amplifier are also different at 30km and 100km. Isn’t the wireless transmission distance determined by the amplifier?

질문: Please explain what is the difference between kits with a transmission power of 5W, which operate at a distance of, 예를 들면, 30 과 55 km?

답변: We understand that different built-in amplifiers will have different transmission distances.

하지만, the core communication modules with different distances will have different prices. 예를 들어, 30km and 55km.

The signal of a 5W amplifier will be stronger at 30km, and the signal may be weaker at 55km. The specific distance and amplifier to choose depends on the distance you need to transmit and the local wireless signal environment. The more complex it is, the larger the amplifier, and the stronger the interference.