[amsat-bb] Russian Thing

[Joe]

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 at amsat.org] On Behalf Of Ross
> Whenmouth
> Sent: 19 July 2017 07:02
> To: amsat-bb at amsat.org
> Subject: Re: [amsat-bb] Russian Thing
>
>> Date: Tue, 18 Jul 2017 11:16:38 -0500
>> From: Joe<nss at 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+&+res
> 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
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> _______________________________________________
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>
>