Hi Michael, 

It'll be a weak lower-bit rate 802.11 signal since a 1U CubeSat could only 
provide an RF output of around 0.4 watts at 2400 MHz but it's certainly 
feasible. 

Signals probably won't be receivable in urban areas due the strength of other 
WiFi signals but my understanding is the system is aimed for areas of the world 
where WiFi isn't available.

Syed Karim project lead of Outernet says: "The signal on the ground will be 
fairly weak, in order to not interfere with local networks. At this time, we're 
shooting for receive sensitivity of about -90dBm"

Of course that's slightly disingenuous - it's not a weak signal because they 
don't wont to interfere with local networks, it's a weak signal because that's 
the best they can do, there is no-way they can generate a strong signal. 

If they could go for a 3U CubeSat they could use higher power (1W) and have a 
fold out 2400 MHz dish antenna such as that on Aeneas 
http://amsat-uk.org/.../amateur-radio-cubesats-to-launch.../


73 Trevor M5AKA




On Saturday, 8 February 2014, 10:55, Michael Chen <[email protected]> 
wrote:
 
Maybe my knowledge is out dated, or is this another fiction?

https://www.outernet.is/

Guys responsible for frequency coordination will freak out for such project. :)

发自我的 iPhone

Michael Chen, BD5RV
AMSAT-CHINA


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