(meteorobs) OT survey Meteors and VLF signatures

[stange]

I have a sensitive circuit ready for ANYONE willing to explore VLF or 
Electrostatic meteoritic events using computer audio input cards or having a 
means of recording the output of this circuit.

Would prefer US based persons because of shipping charges. If no one steps 
forward then I will ship out of US via USPS and trust to luck.

This circuit is free. 9V batteries will need to be purchased by user. See 
photos & diagram. Globe in picture is not a part of this shipping.
http://www.geocities.com/stange34@sbcglobal.net/PrototypeSensor
Larry
YCSentinel


----- Original Message ----- 
From: "stange" <stange34 at sbcglobal.net>
To: "Global Meteor Observing Forum" <meteorobs at meteorobs.org>
Sent: 2009/04/03 09:49
Subject: Re: (meteorobs) OT survey Meteors and VLF signatures


> 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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>
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