[TowerTalk] get those HF EME antennas ready...

[John Becker]

> Date: Wed, 09 Jan 2008 14:54:26 -0800
> From: Jim Lux <jimlux at earthlink.net>
> Subject: [TowerTalk] get those HF EME antennas ready...
>
> Right above 40m band (7.405 MHz), and they DID run a bit more power than 
> hams are allowed (3.4 MW), but they successfully bounced a signal from 
> HAARP in Alaska to the moon and down to a receiving array in NM.
>
> http://www.nrl.navy.mil/pressRelease.php?Y=2008&R=4-08r
>
>
> Good thing they were doing this when the sunspots are low, so the 
> ionosphere lets it through...October 28, 9UT
>
> Looks like the echo was about 25 dB below the ionosphere reflection.
>
> Interesting pictures of their wideband HF antennas at the bottom.  More 
> on the antenna at http://lwa.unm.edu/
>
> The lowest takeoff angle for the LWA isn't that low(15 degrees), but it 
> has a pretty good effective aperture (4 million square meters)
>
>
> Jim, W6RMK
>
>   
JH1KRC has done some EME work on 15M.

Details here: http://eme.dokidoki.ne.jp/sound/jh1krc/index.html

73,

John, K9MM