What is the maximum short wave communication distance? composed of power supply and terminal equipment

How far can a short wave radio station transmit
Radio communication equipment with working wavelength of 100 ~ 10m (frequency of 3 ~ 30 MHz) for short wave radio. It is usually composed of transmitter, receiver, antenna, power supply and terminal equipment. Conditions: military short wave radios are divided into portable, vehicle mounted (or shipborne, airborne) and fixed radios according to their uses and conditions of useWhich of the medium wave, FM, shortwave, and aeronautical wavebands has a long propagation distance
Short wave is the most economical choice to realize long-distance communication. A 100W short wave transmitter can easily realize thousands of kilometers of communication, which is absolutely impossible for long wave, medium wave and VHF frequency modulation. In the 1930s, short wave communication was in its heyday. Communication among countries depended on short waveHow far is short wave propagation
The short wave is different. The transmitting antenna of a radio station has a certain direction and elevation. Generally, the distance of the receiver is often thousands of kilometers or even tens of thousands of kilometers. The radio waves transmitted by the radio station must be refracted by the ionosphere at a height of nearly 100 kilometers above the earth's surface before they can be received at a distanceWhat is the wavelength of short wave communication
The short wave length is 100 ~ 10m, and the corresponding frequency is 3 ~ 30 MHz. Due to the long distance, economy and convenience of short wave propagation, the application of short wave quickly exceeded that of medium wave. In 1921, human beings realized the transmission of short wave across the ocean for the first time. The pioneer was not a famous expertHow far is the walkie talkie
The communication distance of general civil interphones is within 2-3km. The communication distance of professional interphone is within 3-10km. The talk distance of commercial walkie talkies is between 800 meters and 8 kilometers, while that of civil walkie talkies is short, 3 kilometers in the open. The short wave walkie talkie is very far away. It can be used if supported by external environmental factorsHow far can short wave radio transmit
Radio communication equipment with working wavelength of 100 ~ 10m (frequency of 3 ~ 30 MHz) for short wave radio. It is usually composed of transmitter, receiver, antenna, power supply and terminal equipment. Conditions: military short wave radios are divided into portable, vehicle mounted (or shipborne, airborne) and fixed radios according to their uses and conditions of useWhat is the farthest effective communication distance of the wireless interphone
General interphone communication distance is 3-5km, depending on the environment. When the car radio (also called car radio) is used as a base station, the communication distance is 50-200km The communication distance of short wave radio is more than 1000-10000kmHow far can the 20W power of ultrashort wave communication be transmitted
According to my actual measurement, the 20W power V segment, the line of sight transmission distance reaches 60km, and there is no obstacle. According to the observation, the distance will be further
Short wave transmission distance
Short wave transmission is the farthest. Short wave is transmitted by ionospheric reflection. When the ionosphere reflects the short wave back to the ground, communication can be realized for hundreds to thousands of kilometers. The ground can also reflect the radio wave to the ionosphere again, and the ionosphere forms a secondary reflection. So onRange of microwave, short wave, medium wave and long wave
Short wave (high frequency) HF 100-10m 3-30MHz 1 Long distance short wave communication; 2. short wave broadcasting. Ultra short wave (VHF) VHF 10-1m 30-300MHz 1 Ionospheric scattering communication (30-60mhz); 2. meteor trail communication (30-100mhz)