Nonhams usually are pretty surprised to find out about ham radio satellites. Imagine — do-it-yourself satellites! As of early25 active satellites were providing ham-to-ham communications or supporting the scientific experiments of student teams by sending telemetry back to Earth.
Equipment for amateur satellites communication, reception and transmission on QO Es'Hail22. LNBF for This Bias-T is equipped with a resettable fuse
SatMatch is a satellite prediction tool used to find times when a satellite is visible from two locations. It is geared toward Amateur Radio operators that want to determine what times are best to communicate between two specified locations using an amateur radio satellite. More information about amateur radio satellites can be found on the Amsat page.
This is a fascinating aspect of the amateur radio hobby, and one that you may want to explore once you have your licence. There are a number of orbiting amateur radio satellites up above us — some transmit beacons that operators can tune in to, and some are repeaters that hams can use to bounce signals off, to make long distant contact. In Novemberour team tried to pick up our first signals from space — after some trial and error, we found that we could do this very easily and cheaply. From launch, the satellite transmitted a strong beacon containing an audio announcement, a slow-scan TV image, a greetings message, and telemetry data from the satellite.
Amateur Radio Satellites. The table below shows the information available in our database and located in the group of Satellites of Amateur Radio Satellites. This satellites are used, constructed and operated by radio amateurs from various parts of the world, with the aim of providing and developing communications between the technical community.
How hard is it to build a ground station to communicate with people via a satellite? Probably not as hard as you think. It turns out that a cheap Chinese radio is all you need on the radio side.
One of the great things about Ham Radio is the endless ways you can enjoy the hobby. There are over two dozen ham radio satellites in orbit right now, and they allow short QSOs over a few thousand miles to take place! To make QSOs via satellite, you will need to be able to transmit and receive on both 2 meters and 70 centimeters.
My favorite ham activity is making contacts via satellites. Not only is there the romantic notion of sending messages into outer space, but you have to trace the orbit of the satellite with your antenna while tuning the radio, to compensate for the Doppler effect. Repeaters are automated relay stations that allow hams to send signals over a greater distance using low-power hand held transceivers. The satellites allow hams to relay messages from Earth to space and back to other hams somewhere on the planet.
In the early days of satellites, not many years after the launch of Sputnik One inamateur satellites were designed and launched with downlinks on 29 MHz. For many, such as those requiring single-channel bandwidth greater than approximately 12,5 kHz, the best answer will be found in the microwave bands. The band segment was heavily used for downlinks in the s and s.