On Wed, 18 May 2005 19:30:50 GMT, "harrogate2" wrote:


"Cecil Moore" wrote in message
...
Chris wrote:
?
In the upper peninsula of Michigan the Navy operated an ultra low frequency
station in order to send messages to submerged submarines. The transmitting
antennas were dozens of miles long.

JJ


Ariceibo?
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73, Cecil http://www.qsl.net/w5dxp


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As a single antenna, probably.

But as an 'effective' antenna what about that line of dishes on tracks
near Cambridge that ISTR is equivalent to a dish 3 miles across!

James Johnson
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