ooooo interesting WW - thanks much F2C2012: Eben Moglen keynote - "Innovation under Austerity" [1]https://www.youtube.com/watch?v=G2VHf5vpBy8 some fucking arrogant shit but some info as well [f18dQhb0S7ks8dDMPbW2n0x6l2B9gXrN7sKj6v5dfb6W5vwkZs7fZjrnW2BpKgF2zlZNzW 8v-hnY1k1H6H0?si=5459291358625792&pi=3c6b3a9e-6e9c-478b-8dca-43f310 e08676] On Fri, Feb 12, 2016 at 7:36 AM, <[2]wirelesswarrior@safe-mail.net> wrote: -------- Original Message -------- From: Ted Smith <[3]tedks@riseup.net> Apparently from: [4]cypherpunks-bounces@cpunks.org To: [5]cypherpunks@cpunks.org Subject: Re: [Fwd: Multiple Internets] Date: Wed, 10 Feb 2016 12:02:57 -0500 >I'm a little skeptical of wireless mesh networks as a general solution to this sort of problem, because they're inherently chatty, and have very limited reach. Wireless meshes are usually short range but there is no architectural reason they can't be linked by LoS or even longer distances connections. One area familiar to hams in the VHF/UHF bands is troposcatter. Tropo is similar to the more common HF phenomenon ionospheric reflection ("skip") but instead uses refraction changes in lower layers of the atmosphere due to temperature/density differences. Tropo is shorter range (generally 100-500 km) than skip and less RF efficient but tends to be more reliable and because it operates using much higher frequencies can support much higher bandwidth (data rates). All the VHF/UHF ham bands and several unlicensed bands (900 MHz, U.S. only), 2.4 GHz and 5.7 GHz can all support tropo though reflection efficiency tends to be greatest at the lower frequencies. Until the advent of satellites tropo use was widespread by commercial and military. Now that anti-satellite tech is becoming more widespread (e.g., recent Chinese launches) tropo is again being investigated [6]http://www.militaryaerospace.com/articles/2013/07/army-troposcatt er-communications.html I'm considering tropo experiments in one of the ham or ISM bands. Please PM if you might have SDR or RF skills, time and some money to throw toward this. Speaking of skip, in my PP Hacker Conference slides [7]http://s000.tinyupload.com/?file_id=03580328025747098705 I discuss a variant, NVIS (Near Vertical Incident Skywave), first developed by the Germans during WW II, which allows HF stations operating between 2 - 12 MHz to bounce signals off the ionosphere for intermediate rage (25-100 km) non-LoS communications. WW -- tor-talk mailing list - [8]tor-talk@lists.torproject.org To unsubscribe or change other settings go to [9]https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk -- Cari Machet NYC 646-436-7795 [10]carimachet@gmail.com AIM carismachet Syria +963-099 277 3243 Amman +962 077 636 9407 Berlin +49 152 11779219 Reykjavik +354 894 8650 Twitter: @carimachet <[11]https://twitter.com/carimachet> 7035 690E 5E47 41D4 B0E5 B3D1 AF90 49D6 BE09 2187 Ruh-roh, this is now necessary: This email is intended only for the addressee(s) and may contain confidential information. If you are not the intended recipient, you are hereby notified that any use of this information, dissemination, distribution, or copying of this email without permission is strictly prohibited. References 1. https://www.youtube.com/watch?v=G2VHf5vpBy8 2. mailto:wirelesswarrior@safe-mail.net 3. mailto:tedks@riseup.net 4. mailto:cypherpunks-bounces@cpunks.org 5. mailto:cypherpunks@cpunks.org 6. http://www.militaryaerospace.com/articles/2013/07/army-troposcatter-communications.html 7. http://s000.tinyupload.com/?file_id=03580328025747098705 8. mailto:tor-talk@lists.torproject.org 9. https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk 10. mailto:carimachet@gmail.com 11. https://twitter.com/carimachet