From 6640501e2420acb05b41fb07168ba78be15f97d0 Mon Sep 17 00:00:00 2001 From: Petter Reinholdtsen Date: Fri, 29 Sep 2017 10:28:40 +0200 Subject: [PATCH 1/1] Another link. --- blog/data/2017-09-29-gsm-imsi-catcher.txt | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/blog/data/2017-09-29-gsm-imsi-catcher.txt b/blog/data/2017-09-29-gsm-imsi-catcher.txt index 3af98b132a..65c7c403fb 100644 --- a/blog/data/2017-09-29-gsm-imsi-catcher.txt +++ b/blog/data/2017-09-29-gsm-imsi-catcher.txt @@ -1,6 +1,6 @@ Title: Visualizing GSM radio chatter using gr-gsm and Hopglass Tags: english, debian, personvern, surveillance -Date: 2017-09-29 10:25 +Date: 2017-09-29 10:30

Every mobile phone announce its existence over radio to the nearby mobile cell towers. And this radio chatter is available for anyone @@ -34,8 +34,9 @@ Buster/Testing with several (five, I believe) RTL2838 DVB-T receivers connected and visualize the visible cell phone towers using an English version of Hopglass. A fairly powerfull machine is needed as the -grgsm_livemon_headless processes converting the radio signal to data -packages is quite CPU intensive.

+grgsm_livemon_headless processes from +gr-gsm converting +the radio signal to data packages is quite CPU intensive.

The frequencies to listen to, are identified using a slightly patched scan-and-livemon (to set the --args values for each receiver), -- 2.51.0