Re: antenna length vs. dielectric constant?

From: Rich Grise (richgrise_at_example.net)
Date: 03/11/05 

Date: Fri, 11 Mar 2005 16:56:43 GMT

On Fri, 11 Mar 2005 12:43:06 +0000, James Meyer wrote:
> On Fri, 11 Mar 2005 03:47:08 GMT, Mac <foo@bar.net> wroth:
>
>>> Suppose you needed to communicate with a submarine and could put both
>>> antennas underwater?
>>
>>You mean a full size submarine? In the ocean? Are you familiar with the
>>expression "lossy dielectric?"
>>
>>Just wondering.
>
> It's for a small model of a submarine that will be used to test a
> prototype propulsion system and it will be deployed in a large fresh water
> flooded stone quarry. A few hundred feet of range is all we need. That's all
> I'm allowed say right now.
>

This sounds like a job for ultrasonic, if you can filter out bottom
clutter.

Good Luck!
Rich

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