(meteorobs) To: Dr. Tony Phillips

[Jay Salsburg]

I am surprised an analog TV transmitter can provide such a monotonic
scatter. Perhaps I am missing something. My region of the country has no
transmitters of any usefulness for forward scatter use at 40 or 50 MHz, this
is why I want to create a Beacon of my own.

 

From: meteorobs-bounces at meteorobs.org
[mailto:meteorobs-bounces at meteorobs.org] On Behalf Of Thomas Ashcraft
Sent: Friday, November 15, 2013 5:29 PM
To: Meteor science and meteor observing
Subject: Re: (meteorobs) To: Dr. Tony Phillips

 

On 11/15/13 3:53 35000, Jay Salsburg wrote:

 

I have no experience monitoring echoes reflected by Analog TV transmitter,
but I do have years experience monitoring echoes from the NAVSPASUR
transmitter, along with a good understanding of RADAR.

 

I can guess the reflections off a TV Transmitter must be Doppler noisy, even
though strong reflections are possible, that reflection's DOPPLER signal
would be non monotonic or rather indistinct in frequency. Also, I am
guessing, it should be possible to discern the attributes you mention in
your post, but the signal return would not be very frequency specific.
Probably the only practical reason to use an Analog TV Transmitter for
forward scatter meteor detection would be only for logging activity and not
the character of the activity, at least for automated logging.


I have a whole archive with hundreds of video specimens of meteors with
forward scatter along with their radio spectrographs here:

http://www.heliotown.com/Ashcrafts_Fireball_Archive.html

Thomas Ashcraft  -  Heliotown  - New Mexico

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