It will be hard to make it tonight, but I have a topic/idea for the group.
A few months back, I watched a recording from DEFCON where they had an
Ettus SDR attached to OpenBTS and maybe Asterisk, acting as an IMSI catcher
for the crowd, low power with directional antennas.
It got me thinking about emergency communications (i.e. Katrina) and the
ham world, ARES nets and radiograms. I'm not sure if anyone has done it
yet, but one could set up asterisk to OpenBTS for a grid-down scenario,
have a tent where people could try to place calls. Via asterisk, calls
could go to queues, and based on the number being dialed, get routed to an
HF radio operator for a high-priority call from say Denver to Virginia. Or
a "voicemail" recording could be taken off asterisk and sent as an email
attachment. Like if another openBTS station was set up elsewhere, and the
destination cell number had been logged in the last week, the voicemail
could be sent to that distant station.
The notion I was bringing in: why not use existing tech (mobile phones)
that people already have during grid down. Again, maybe some of this has
been tried. Not pure GNU Radio geekery, but certainly traverses the
On Thu, Jun 2, 2016 at 12:41 AM, Chris Hamilton <kd0zyf@xxxxxxxxx> wrote:
In. West End is good.
On Wed, Jun 1, 2016 at 11:56 PM, sean rivera <
Since there hasn't been an email about the meeting tomorrow, this will be
a general roll call, and a discussion on where we should hold it.
Personally I nominate the West End Tap house (3945 Tennyson St, Denver,