[liberationtech] Iran Crackdown May be Coming as Chileans Use Laser to Bring Down Drone
Richard Brooks
rrb at g.clemson.edu
Tue Nov 19 16:27:28 CET 2019
There are groups that pirate satellite links. This is
illegal, but seems to be not hard to do and not quickly
prosecuted. If they can find you. I believe a transmitter
would cost a few hundred dollars and could be positioned
in most any neighboring country. This would provide access
into the country more cheaply.
Don't the satellite phones leak location info?
One interesting question: are the connections tunneled
through satellite TV being affected?
A sign of real desperation would be their trying to cut
off access to Turkish tele-novellas.
On 11/18/19 3:51 PM, David Stodolsky wrote:
>
>
>> On 18 Nov 2019, at 20:49, Yosem Companys <ycompanys at gmail.com> wrote:
>>
>> Does anyone have more specific info on the products (e.g., costs of lasers) listed below?
>
> This Amazon’s Choice at $19 appears to be widely available:
>
> https://www.amazon.com/Pointer-Visible-Adjustable-Hunting-Hiking/dp/B07YXM51W4
>
> Green Light Pointer High Power Visible Beam with Adjustable Focus for Hunting Hiking
>
>
>>
>> Also, what alternative solutions (e.g., satellite Internet) could be used in a country like Iran where the government has shut down the Internet, thereby preventing the people from uploading videos to the Internet?
>
> A satellite phone or shortwave amateur radio can be used for low bit rate transmissions.
>
> I posted a list of mesh network options to the list 10 August, when we were discussing Kashmir. These types of solutions operate at WiFi rates, but the units can’t be too far from each other. Normal phones are limited to 10 meters, but special antennas allow about 50 kilometer line-of-sight communication. When there is widespread resistance, a mesh network can be created from thousands of phones and a signal can propagate from one to the next, as long as there is no wide gap.
>
> One way to ensure no gaps is to pay people, with crypto-currency, to be in the right place. Bitcoin can be transmitted by shortwave radio or into an area by satellite:
>
> https://groups.io/g/yellowvests/message/14
>
>
> I discuss a comprehensive approach to mass direct action using mesh networking here (sub list for access):
>
> https://groups.io/g/yellowvests/message/10
>
>
> dss
>
>
> David Stodolsky, PhD Institute for Social Informatics
> Tornskadestien 2, st. th., DK-2400 Copenhagen NV, Denmark
> dss at socialinformatics.org Tel./Signal: +45 3095 4070
>
>
--
===================
R. R. Brooks
Professor
Holcombe Department of Electrical and Computer Engineering
Clemson University
313-C Riggs Hall
PO Box 340915
Clemson, SC 29634-0915
USA
Tel. 864-656-0920
Fax. 864-656-5910
Voicemail: 864-986-0813
email: rrb at acm.org
web: http://www.clemson.edu/~rrb
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