Radio astronomy is the study of celestial phenomena through measurement of the characteristics of radio waves emitted by physical processes occurring in space. Radio waves are much longer than light waves. In order to receive good signals, radio astronomy requires large antennas, or arrays of smaller antennas all working together (The Very Large Array near Socorro, New Mexico is an example of this). Most radio telescopes use a parabolic dish to reflect the waves to a receiver which detects and amplifies the signal into usable data. This allows astronomers to see a region of the radio sky. If they take multiple scans of overlaping strips of the sky they can piece together an image ('mosaicing'). Radio astronomy is a relatively new field of astronomical research that still has much more to be discovered.
Amateur :: Radio
Radio :: Observatories

Society of Amateur Radio Astronomers - Dedicated enthusiasts who teach, learn, trade technical information, and do observations of the radio sky.
Meta Description: [ Website of the Society of Amateur Radio Astronomers, Inc., a membership-supported, nonprofit [501(c)(3)] educational and scientific corporation. ]
Community Development Institute - A non-profit organization dedicated to the search for extra-terrestrial intelligence. Located in Brisbane, Australia.
Amateur Radio Astronomy - Construction of the antenna, system descriptions, objectives, typical results, and references.
Meta Description: [ 1420 Mhz Radio Astronomy Project ]
Amateur SETI - Equipment information with images, software and manual, formulas, javascript calculator, readings, sample data plots, glossary, and links.
Amateur SETI - Project BAMBI - Design, construction, and initial observational results of a 4-GHz amateur radio telescope with circuit board layouts, software, and schematics.
Basics of Radio Astronomy - Workbook developed to support training for the Goldstone-Apple Valley Radio Telescope, but can be applied to all.
Big Ear Radio Observatory - No longer in operation, and includes a beginner's guide, facility and equipment information, press releases, and slide shows.
Meta Description: [ This Kraus-type radio telescope,
larger than three football fields, was famous for the Wow! Signal and
for the longest-running SETI project. ]
EME, SETI, Radio Astronomy, DSP, and Radio Amateurs - Dedicated to building bridges between amateur groups and the promotion and preservation of weaksignal communication.
John Mckay's Astronomy Website - Radio telescope project with diagram and graphs.
Meta Description: [ An amateur radio telescope in the Yorkshire Dales. The telescope will be fully steerable when completed. ]
404
JupiterRadio - Dedicated to observing and analyzing natural decametric radio emissions from Jupiter and the sun.
Meta Description: [ Jupiter Radio Astronomy - Information about Planetary Radio Emissions and the RadioJOVE Jupiter Radio Telescope ]
Multi-SETI@Home Monitor - Graphical add-on package to monitor activity that may be running on multiple computers over a network or multiple instances on the same computer.
National Radio Astronomy Observatory - Current events, public outreach, very large array, VLA expansion project, and very long baseline array.
Pisgah Astronomical Research Institute - Dedicated to providing research and educational access to radio and optical astronomy for a broad cross-section of users.
Meta Description: [ Where Science Excites the Imagination. ]
Radio Astronomy - How to start, audio and sound files, projects, and basic equipment information.
Meta Description: [ Menu - Radioastronomy ]
Radio-Sky Publishing - Provides software (some free), books, and hands-on projects within areas of Jupiter, the Sun, Pulsars, and other areas.
500
SCSU Radio Astronomy - Reports progress on their small-dish projects with resource links.
The European Radio Astronomy Club - Observations, workshop, groups, telescopes and images, and radar links.
Meta Description: [ Web site of ERAC - The European Radio Astronomy Club which was founded as a nonprofit
making organization who's aim it is to coordinate individuals and groups together
with scientific research establishment to aid in research of Radio Astronomy ]
United Kingdom Amateur Radio Astronomy Network - Amateur radio astronomy mainly for, but not limited to, the United Kingdom, providing information for beginners, project ideas, articles, and downloadable archive material.
| -wave Array (ALMA). For more details see www.nrao.edu. ... Astronomy Science ALMA NRAO VLA EVLA VLBA GBT Radio Waves ... | |
| Next Video | |