AJ4CO Observatory - Station Description
Some details of the radio observatory |
The Electromagnetic Spectrum Because every radio astronomy web site must have one of these |
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The HF Spectrogram An intro to the bumps, blips, and blobs of upper HF band spectrograms |
Intro to Amateur Radio Astronomy A very brief presentation given at the Alachua Astronomy Club meeting in September, 2016 |
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The DPS and TFD Array Details of the receiver and antenna array |
The TWB Details of the tunable wideband receiver |
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The Galactic Background in the Upper HF Band How hot do other people think it is? |
The Quiet Day Curve How hot does AJ4CO think it is? |
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Things That Go Hump in the Night A fun experiment |
Antenna Temperature Calibration Equations for Radio-SkyPipe One way to set up a well-calibrated system |
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Cassiopeia A Scintillation Observed by Radio Jove Participants Putting ionospheric dynamics to work |
Documentation If you do it, write it down already |
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The FFT Details of the fast Fourier transform |
Quiet Sun 20 MHz Antenna Temperature Analysis How hot is the Sun at 20 MHz? |
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Faraday Bands for Fun and Profit What they are and why they happen |
Implementation of Median Smoothing in Radio-SkyPipe II A simple way to do median smoothing in RSP |
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A Different Kind of Solar Power Solar radio burst output in terms of atomic bomb yield |
Sweepers What are they? |
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Cable Sweep Cheat Sheet How long is that coax cable, anyway? |
Reber's Cosmology Problems with Grote Reber's cosmology |
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Cosmic Microwave Background Radiation Cheat Sheet CMBR theory versus reality |
HF Galactic Background Cheat Sheet The galactic background synchrotron radiation antenna temperature in the HF band |
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UFRO 5722 Noise Source User's Manual How to make it go |
AJ4CO Automatic Calibrator The tedious details |
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Noise Generator Measurement How to measure the ouput of a noise generator |
TFD Antenna Efficiency Analysis Measurement of antenna efficiency |