Very cool to see a lot of people on Mastodon! Here is a little communication on a work:

New performance "An Eye from Above" premiere in tsonami Festival - Valparaiso - 18 jan 25.

For over 20 years, the three NOAA satellites have been crossing our sky at over 20,000 km/h, continuously scanning the Earth's clouds and radiant energies.

An Eye from above is a performance that attempts to receive a live signal from one of these satellites, using an adapted antenna and a radio tuned to 137 MHz. As the satellite rises above our horizon, its signal slowly emerges from the surrounding noise, giving rise to a characteristic pulsation. The antenna acts as a revealer, making perceptible the electrical energy that passes through our bodies and our environment amidst a crowd of other artificial signals.

Poetry of analog protocols: this pulsation can be decoded into an image. Slowly, line by line, a nephanalysis of the 2000 km that surround us appears. Clouds and infrared radiation from the ground are displayed, offering a shift from our point of view to that of a space object.

#radioart #soundart #noaa #vhf #137mhz #dipole #sstv

Investigating Transit - Part 1 :: xerbo.net
https://xerbo.net/posts/investigating-transit-pt1/

#137mhz #zombie

Investigating Transit - Part 1 :: xerbo.net

The story starts in the 1960s with a fleet of satellites called NAVSAT, a satellite constellation for military navigation. While satellites were only launched between 1956 and 1988, one satellite in the constellation has refused to die and entered “zombie” status, enter Transit-5B5. Transit-5B5 (launched in 1964) is the oldest “working” satellite, broadcasting an intermittent signal when not eclipsed in the 137MHz band. Interestingly enough, its actual navigation systems failed with in 19 days of launch, and it only continues to broadcast telemetry.