(meteorobs) OT survey Meteors and VLF signatures

[stange]

George, Ashcraft, Chris, et.al.,

We are on the same wave length. I am already starting bench testing and 
circuit design this morning for a free mail-out of components to 2 
volunteers in rural areas that might be interested in coupling their audio 
boards & audio signal analyzer programs to a simple (2)  9V battery circuit 
using high impedance IC translator to a low impedance computer audio input.

I think impedance transformation is the way to go to detect weak 
spurious(meteor?) VLF  signals whether whip antenna or multi-turn fine wire 
coil input. In my opinion, the low impedance of an audio input board connect 
to a coil will diminish or kill extremely low level spurious signals as I 
understand how the folks are trying to do it.

Anyway, I will see what Oscilloscope bench test results I get based on using 
the exact same circuit to detect electrostatic charge changes instead of 
winding a big coil with one end grounded and feeding that into the IC input. 
If it works with a metal plate or ball electrostatically, it should work for 
any weak AC signal insulated input.

Will come back on line on this if it checks out on my bench, asking for 2 
volunteers.

Larry
YCSentinel


----- Original Message ----- 
From: "Thomas Ashcraft" <ashcraft at heliotown.com>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2009/04/03 08:44
Subject: Re: (meteorobs) OT survey Meteors and VLF signatures


>
>> 6. Comments?
>>
>> I am sending this to see if there is a standard or just a random seat of
>> the pants observation pattern to detecting meteor electromagnetic noise.
>>
>> George John Drobnock
>>
>
> Hi George and all,
>
> Do you or does anyone know of any sustained long term VLF/ELF meteor
> observation studies? Most reports I have seen have been one night or a
> few night's efforts without establishing long term data baselines.  I am
> also not aware of much in the way of audio specimens.  I need to hear
> some specimen audio recordings but can't find any.  Any references 
> welcome.
>
> This seems to be an ephemeral realm of natural radio I think and an
> actual radio meteor reception may be difficult to prove conclusively.
>
> Tom in New Mexico
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