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Re: (meteorobs) VLF Detector
One repository of knowledge that wuld be worth tapping for anyone
interested in pursuing VLF work is the AAVSO Solar Division
(www.aavso.org/solar/). They have been monitoring VLF frequencies for
Sudden Ionospheric Disturbances (SIDs) which occur after solar flares.
Stolen from their website:
"Recent SID station receivers follow a design developed by SID Technical
Coordinator Art Stokes. The Stokes Gyrator receiver can be built and tuned
by anyone with simple soldering skills. A small indoor loop antenna
captures the radio wave for amplification and rectification by the
receiver. The SID station operates unattended until the end of each month.
Recordings are then analyzed for the beginning, end, and duration of SID
events.
Many of the early receiving systems used simple 1 inch/hour stripchart
recorders to collect a month's worth of SID data. With computers becoming
more available at reasonable cost, several SID program participants have
switched to digitally recording and archiving the signal values for later
processing. A simple A/D converter design for specific use with the VLF
receivers is available by contacting the chairman."
Just FYI...
JB
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