• 160 TX array by AA1K

    Updated: 2012-03-31 18:46:45
    Antennas/160M160 meter tx antenna array

  • Quad for 23cm band

    Updated: 2012-03-31 18:46:45
    Antennas/VHF UHFprobably the most simple and inexpensive antenna you could make for 23cm.

  • A Simple Radio Receiver

    Updated: 2012-03-31 18:46:45
    Development of a simple modular radio receiver

  • Building UHF Antennas

    Updated: 2012-03-31 18:46:45
    Antennas/Homebrewing TechniquesThis method of construction can be used on most UHF through \"low\" microwave Yagis, and is especially useful for the 33, 23 and 13 cm bands

  • 1KW 222 Mhz Amplifier

    Updated: 2012-03-31 18:46:45
    Technical Reference/Amplifiers/VHF Amplifiers222 MHz kilowatt linear amplifier

  • 300 W Amplifier for 33 cm band

    Updated: 2012-03-31 18:46:45
    Technical Reference/Amplifiers/UHF AmplifiersThis amplifier takes advantage of the proliferation of surplus cellular 26v RF boards

  • Beacon for 23 cm band

    Updated: 2012-03-31 18:46:45
    Technical Reference/Beacon keyersThis is a 30-watt sea level beacon intended for the coastal path between Northern and Southern California

  • Antenna Mast and Mounts Manufacturers

    Updated: 2012-03-31 18:46:45
    Links to dealers and manufacturers of telescopic antenna masts, poles, antenna mounts. Hard to find masts, expecially designed to support antenna for portable, emergency or field day use

  • HHI fan club

    Updated: 2012-03-31 18:46:45
    Antique Radios/ClubsDedicated to all fans of vintage Hallicrafters radios

  • Episode 14 Animals in the stars Astronomy Magazine

    Updated: 2012-03-30 21:15:22
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  • Sloan survey shows dark energy who's boss Astronomy Magazine

    Updated: 2012-03-30 21:15:20
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  • Sloan survey shows dark energy who's boss Astronomy Magazine

    Updated: 2012-03-30 21:15:20
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  • A star explodes and turns inside out Astronomy Magazine

    Updated: 2012-03-30 21:15:19
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  • A star explodes and turns inside out Astronomy Magazine

    Updated: 2012-03-30 21:15:18
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  • Sunskimming comets supersonic snowballs in hell Astronomy Magazine

    Updated: 2012-03-30 21:15:17
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  • Sunskimming comets supersonic snowballs in hell Astronomy Magazine

    Updated: 2012-03-30 21:15:16
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  • Anthony Ayiomamitis images stars leaving the galaxy Dave's Universe Astronomy.com Online Community F

    Updated: 2012-03-30 21:15:13
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  • Anthony Ayiomamitis images stars leaving the galaxy Dave's Universe Astronomy.com Online Community F

    Updated: 2012-03-30 21:15:12
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  • Hubble Gets Best Look Yet At Messier 9

    Updated: 2012-03-30 05:32:24
    First discovered by Charles Messier in 1764, the globular cluster Messier 9 is a vast swarm of ancient stars located 25,000 light-years away, close to the center of the galaxy. Too distant to be seen with the naked eye, the cluster’s innermost stars have never been individually resolved… until now. (...)Read the rest of Hubble [...]

  • Huge tornadoes discovered on the Sun Astronomy Magazine

    Updated: 2012-03-30 02:03:36
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  • Huge tornadoes discovered on the Sun Astronomy Magazine

    Updated: 2012-03-30 02:03:35
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  • Book review Transit When Planets Cross the Sun Astronomy.com blog Astronomy.com Online Community For

    Updated: 2012-03-30 02:03:33
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  • Book review Transit When Planets Cross the Sun Astronomy.com blog Astronomy.com Online Community For

    Updated: 2012-03-30 02:03:32
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  • Victory in Arizona Dave's Universe Astronomy.com Online Community Forums Media Galleries Blogs

    Updated: 2012-03-30 02:03:29
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  • Victory in Arizona Dave's Universe Astronomy.com Online Community Forums Media Galleries Blogs

    Updated: 2012-03-30 02:03:28
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  • Four spiral galaxies in Leo Astronomy Magazine

    Updated: 2012-03-30 02:03:27
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  • Four spiral galaxies in Leo Astronomy Magazine

    Updated: 2012-03-30 02:03:20
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  • Weekly Space Hangout — March 29, 2012

    Updated: 2012-03-29 21:56:20
    Pamela Gay hosts (with a still photo because the Internets were not with her) the Weekly Space Hangout featuring Emily Lakdawalla, Ian O’Neill, and Alan Boyle talking about results from recent science conferences including mountains on Mercury, metal exoplanets, and rain on Titan, as well as other fun stuff like Jeff Bezos finding Apollo 11 [...]

  • Call for San Diego astro outreach volunteers Dave's Universe Astronomy.com Online Community Forums M

    Updated: 2012-03-29 09:51:41
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  • Call for San Diego astro outreach volunteers Dave's Universe Astronomy.com Online Community Forums M

    Updated: 2012-03-29 09:51:40
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  • Huge ‘Tornado’ on the Sun

    Updated: 2012-03-29 01:56:18
    The Solar Dynamics Observatory captured images and video of a spectacular rotation of material from the Sun in a solar prominence. The whirling, dancing prominence created a massive tornado-like feature on the Sun, five times bigger than the Earth. “This is perhaps the first time that such a huge solar tornado is filmed by an [...]

  • Discover the Universe Dayton Ohio Astronomy.com blog Astronomy.com Online Community Forums Media Gal

    Updated: 2012-03-27 17:19:27
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  • Discover the Universe Dayton Ohio Astronomy.com blog Astronomy.com Online Community Forums Media Gal

    Updated: 2012-03-27 17:19:26
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  • Follow an urban deep-sky catalog Astronomy Magazine

    Updated: 2012-03-27 00:32:41
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  • Find the solar eclipse in your May sky Astronomy Magazine

    Updated: 2012-03-27 00:32:35
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  • 10 top spring binocular treats Astronomy Magazine

    Updated: 2012-03-27 00:32:29
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  • Astronomy tests Coronado†s SolarMax II Telescope Astronomy Magazine

    Updated: 2012-03-27 00:32:19
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  • Astronomy tests Coronado†s SolarMax II Telescope Astronomy Magazine

    Updated: 2012-03-27 00:32:14
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  • Celestron Luminos Series 31mm Eyepiece Astronomy Magazine

    Updated: 2012-03-27 00:32:07
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  • The Imaging Source DMK 51AU02.AS Astronomy Magazine

    Updated: 2012-03-27 00:32:06
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  • Celestron Luminos Series 31mm Eyepiece Astronomy Magazine

    Updated: 2012-03-27 00:32:06
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  • The Imaging Source DMK 51AU02.AS Astronomy Magazine

    Updated: 2012-03-27 00:32:05
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  • 2012 International Earth and Sky Photo Contest

    Updated: 2012-03-25 14:00:36
    Subscribe Today Renew Give a Gift Archives Customer Service Facebook Twitter Newsletter SEARCH Health Medicine Mind Brain Technology Space Human Origins Living World Environment Physics Math Video Photos Podcast RSS Celestial PhotoOp : The Moon slides in between Jupiter and Venus The Amaz ng Meeting 10 : July 12-15, 2012 2012 International Earth and Sky Photo Contest Fancy yourself a photographer Then you might want to enter the 2012 International Earth and Sky Photo Contest which is being held to promote the importance of dark skies . It’s being organized by three groups of which I highly approve The World at Night Global Astronomy Month part of Astronomers Without Borders and the National Optical Astronomy Observatory As they say on the site , the idea : is Submitted photographs must be

  • Discover the Universe Dorado Puerto Rico Astronomy.com blog Astronomy.com Online Community Forums Me

    Updated: 2012-03-20 01:10:55
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  • Discover the Universe Dorado Puerto Rico Astronomy.com blog Astronomy.com Online Community Forums Me

    Updated: 2012-03-20 01:10:54
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  • Star party guidance from the Astronomy Foundation Astronomy Magazine

    Updated: 2012-03-19 17:09:51
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  • Sheldon Reynolds on amateur astronomy Dave's Universe Astronomy.com Online Community Forums Media Ga

    Updated: 2012-03-14 00:21:25
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  • Virtual Sky 0.3.8

    Updated: 2012-03-10 01:45:00
    Astronomy Blog You are : in Astronomy Blog archive Virtual Sky 0.3.8 An astronomy blog usually but not always based in the UK . Pondering questions such as What is in an exoplanet name Virtual Sky 0.3.8 I wanted to share a quick update on Virtual Sky I created it as part of my work at LCOGT where it was , initially , an experiment in using some of the latest web techniques . However it became clear that , as well as being useful for parts of the LCOGT website , it could allow others to embed a view of the night sky in their webpages too . I like it when I can make things that are . useful This week I released a couple of updates to Virtual Sky . The updates should have solved some issues with older versions of Internet Explorer 7 8 fixed issues if the part of a page containing Virtual Sky

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