The ELF antennas in Michigan and Wisconsin were bigger than 70M. Each
was 13 miles long. Wisconsin had 2 antennas and the Michigan site had 3
antennas. The patterns were steerable electronically by changing the
current phases. Simple stuff. I used to work there.

Scott


Thierry wrote:

"harrogate2" wrote in message
...

"Cecil Moore" wrote in message
...

Chris wrote:

?

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


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As a single antenna, probably.



Arecibo remains the largest fixed antenna.
The largest steerable is DSN... 70 m
ham : probably the low band beam used by JARL ?

73
Thierry
http://www.astrosurf.org/lombry



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!


--
Woody

harrogate2 at ntlworld dot com