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Jupiter Io-B/Io-C on 17 April 2009

For this experiment, we used an Icom R-75 HF receiver tuned to 20.1 MHz (in LSB mode with AGC Off).  The antenna was a 3-element Yagi initially pointed 135 degrees true and rotated every 40-50 minutes to track Jupiter as it crossed the morning sky.

Click here for an audio recording corresponding to above chart (75 s, ~1.7 MB WAV file).  Listen for the characteristic surf or swishing sounds of L-bursts; there is a relatively strong burst toward the end of the file.
 

Additional RSP2 chart showing longer time scale