Remember Echo things?
Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 7/19/2017 3:09 AM, Simon Brown wrote:
Yes,
On 2m they have (by accident) and they are.
Simon Brown, G4ELI www.sdr-radio.com
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Ross Whenmouth Sent: 19 July 2017 07:02 To: amsat-bb@amsat.org Subject: Re: [amsat-bb] Russian Thing
Date: Tue, 18 Jul 2017 11:16:38 -0500 From: Joenss@mwt.net
Now for a surface to be reflective, how big does it need to be in terms of wvelength?
That's textbook radar theory - see: http://slideplayer.com/slide/3927976/13/images/9/Modelling+development+&... ults.jpg
Provided that you have enough EIRP (EME rig?), I would expect that 6m or 2m would probably be a good choice of band, since shorter wavelengths are more likely to undergo optical scattering, which might not be in the direction of your intended RX.
On this subject, have any hams tried using the ISS as a passive RF reflector?
73 ZL2WRW Ross Whenmouth _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb