What is Moonbunce?
Moonbunce is a common name for a technological practice called Earth-Moon-Earth (EME) The process includes the use of the Moon as a passive communication satellite, jumping radio waves from the transmitter to the ground from the month back to Earth. Although Moonbunce sounds like sci-fi technology, it is in practice today and is a popular trick of many amateur radio operators. With radio transmission, sound waves travel away from their origin, for example, people talking to a microphone. If at some point the wave encounters an electromagnetically reflective surface, the waves are bouncing back. In EME, transmission from the ground moves into space at a specific frequency, reflects from the surface of the moon and its reflection is detected by another point on the ground by means of the same frequency.
In 1940, Mr. W. Bray from the British Mail Theorized Theorized THATAONBOUNCE was possible. After the end of World War II, the US Army conducted EME experiments. The first successful Moonbounka became 10 January 1946. Before the spread of communication satellites was EME useful meansEM Safe wireless communication, including the telethype of the satellite connection between the naval base in Pearl Harbor, Hawaii and the Navy Washington D.C.
Moonbunka has limited use due to several complicated factors. Bidirectional conversations are inconvenient through EME due to a delayed distance between the ground and the Moon. The month is almost 250,000 miles (402 336 km) from the ground. The radio wave travels to just 186,000 (approximately 300,000 km) kilometers per second. For a question to reach a respondent through the Moon, it is between the time when the interviewer launched his sentence and hears the opponents. Simotase and answer take 5.4 seconds of delay to complete.
The surface of the moon is not a good reflector of electromagnetic waves that tends to distract the discouraging energy. For this reason, advanced devices, including a highly sensitive and high -performance antenna, require a successful monthly point. Moreover, thereforeE The moon is irregularly emerged and moves slightly to the place, returning waves are distorted when the signal reflects lunar features such as craters or mountains.
Amateur radio operators have been used by EME just a few years after its foundation, starting in 1953. To create Moonbounging transmission, you will need a transmission point that has a clear view of the Moon, preferably on site with several human broadcasts. Experts recommend using a sensitive receiver with a narrow belt, a rotary antenna and a transmitter that can produce at least 1500 watts of radiofrequency output. Also, make sure there are no local regulations prohibiting the use of this device and that neighbors do not mind practice.
with time, patience and skill is an achievable goal for an amateur operator. More than 60 years after its foundation, it remains popular among radio fans fans. The possibility that a human being can use a clean night and the right equipment to reach out and touch the monthIn his voice, it seems unlikely to lose his poetic attraction.