SETI public: neophyte question

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From: David M. Ocame (n1yvv@hotmail.com)
Date: Tue Jun 04 2002 - 17:46:52 PDT

Hello to everyone on the list.

I have some questions which may be elementary to some. But, remember, I am not an astronomer nor am I a radio-electronics engineer. So, thank you in advance for indulging me.

Why is that that Project Argus participants use upper sideband? Why sideband at all?

I seem to recall an essay not long ago about searching for ourselves. That essay made a lot of sense to me. It also spoke about searching using CW. It then occurred to me to ask does the mode really matter? Why not AM or even FM? We are using our soundcards to process the audio from our receivers. So, any mode that produces an audio signal should be a valid mode. No?

I know we are looking for a narrowband signal. This is to separate natural 'wideband' signals from the narrow band signals that may indicate intelligent communication. What constitutes narrow band?

I am in the most rudimentary of stages in assembling a SETI observatory. Answers to these questions and more to follow will help me get a good start.

Thanks and 73!

Dave Ocame N1YVV

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