Allen Telescope Array
Legendary radio interferometer in Northern California, USA. Primarily built to search for extraterrestrial intelligence (SETI) and to perform radio astronomy observations. It's composed of 42 randomly distributed 6.1 meter diameter antennas maintained by the SETI Institute. Place where many squirrels and chipmunks call home.
One of the Allen Telescope Array antennas.
More mechanical systems of one of the Allen Telescope Array antennas.
The main structure on-site. This houses our offices and signal processing room.
We call this one "Lab 2". The corner is bent because one of the old telescopes fell on top of it in 1993 after a big storm.
Supporting structures at the observatory.
An old antenna not used anymore. The main reflector is made of very thin glass mirrors! Many of them broke because of the weight of snow.
My preferred method of transportation inside the observatory. We call it "Gator"! Bring ear protection...
Signal processing room cooling infrastructure capable of handling a large swing in temperatures of northern California; Emergency power generator and batteries; Supplemental Starlink terminal used as fallback in case our fiber internet fails.
The Hat Creek Radio Observatory also hosts one of the CHIME (Canadian Hydrogen Intensity Mapping Experiment) outriggers.
A component of the RF chain that converts the RF signal into light for transmission over optical fiber.
A small part of the signal processing equipment on-site. Including GPU-accelerated servers and digitizers.
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