It says once opened it will " It will span 16 square meters (170 square feet)"
a Triangle one side of 170 sqft = 18 feet base to peak. But if they are saying 170 sqft total, then divided by 3 = 10 foot tall base to peak.
Now for a surface to be reflective, how big does it need to be in terms of wvelength?
Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 7/18/2017 11:02 AM, Paul Andrews wrote:
Will this object reflect RF signals?
Maybe reflect like meteor scatter?
Maybe too small.
On Jul 18, 2017 11:58 AM, "Joe" <[email protected] mailto:[email protected]> wrote:
he he eh that's why I asked here for a web page or similar I saw that also, and thought, ummmm I'm interested,, but NOT THAT INTERESTED!! he he he Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 7/18/2017 10:29 AM, [email protected] <mailto:[email protected]> wrote: Am I the only person who is worried about downloading an app from Russia onto my smartphone? Steve AI9IN On 2017-07-18 10:50, JoAnne K9JKM wrote: Hi Joe, Heavens-Above.com now has pass predictions up for the new Russian reflector sat "Mayak," listing it as NORAD ID 2017-042F/42830. http://www.heavens-above.com/PassSummary.aspx?satid=42830 <http://www.heavens-above.com/PassSummary.aspx?satid=42830> (that's the page but no predictions were actually listed the last time I checked it.) Plus Mayak has its own app, available to those who back the project. See: http://cosmomayak.com/default#mobileapp <http://cosmomayak.com/default#mobileapp> On 7/18/2017 9:42 AM, Joe wrote: While not really a Com bird, it still me be interesting to spot. Does anyone know of a tracking site for this? http://www.iflscience.com/space/russian-scientists-just-launched-a-controversial-artificial-star-that-might-anger-astronomers/all/ <http://www.iflscience.com/space/russian-scientists-just-launched-a-controversial-artificial-star-that-might-anger-astronomers/all/> Joe WB9SBD _______________________________________________ Sent via [email protected] <mailto:[email protected]>. 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 <http://www.amsat.org/mailman/listinfo/amsat-bb> _______________________________________________ Sent via [email protected] <mailto:[email protected]>. 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 <http://www.amsat.org/mailman/listinfo/amsat-bb>
Joe asked:
Now for a surface to be reflective, how big does it need to be in terms of wvelength?
For MW dishes, the general rule of thumb is 10 wavelengths. Are you thinking about bouncing RF off of it? I would think the flat sides with it tumbling would make it very hit and miss. Interesting thought however.
73 ----- Jim Walls - K6CCC [email protected]
Digital meteor scatter techniques might work.
On Tue, Jul 18, 2017 at 12:25 PM, [email protected] [email protected] wrote:
Joe asked:
Now for a surface to be reflective, how big does it need to be in terms of wvelength?
For MW dishes, the general rule of thumb is 10 wavelengths. Are you thinking about bouncing RF off of it? I would think the flat sides with it tumbling would make it very hit and miss. Interesting thought however.
73
Jim Walls - K6CCC [email protected]
Sent via [email protected]. 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
participants (3)
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jim@k6ccc.org
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Joe
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Paul Andrews