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[homepage.git] / blog / data / 2017-09-29-gsm-imsi-catcher.txt

diff --git a/blog/data/2017-09-29-gsm-imsi-catcher.txt b/blog/data/2017-09-29-gsm-imsi-catcher.txt
index 8af12d8c7473e9aad2f7ae2daa6d2c7d4b9a03a8..65c7c403fb8faaad274de135985f4a6c55615006 100644 (file)
--- 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 10:20
+Date: 2017-09-29 10:30
 
 <p>Every mobile phone announce its existence over radio to the nearby
 mobile cell towers.  And this radio chatter is available for anyone
@@ -34,10 +34,11 @@ Buster/Testing with several (five, I believe) RTL2838 DVB-T receivers
 connected and visualize the visible cell phone towers using an
 <a href="https://github.com/marlow925/hopglass">English version of
 Hopglass</a>.  A fairly powerfull machine is needed as the
-grgsm_livemon_headless processes converting the radio signal to data
-packages is quite CPU intensive.</p>
+grgsm_livemon_headless processes from
+<a href="https://tracker.debian.org/pkg/gr-gsm">gr-gsm</a> converting
+the radio signal to data packages is quite CPU intensive.</p>
                                        
-<p>The frequencies to listen to are identified using a slightly
+<p>The frequencies to listen to, are identified using a slightly
 patched scan-and-livemon (to set the --args values for each receiver),
 and the Hopglass data is generated using the
 <a href="https://github.com/petterreinholdtsen/IMSI-catcher/tree/meshviewer-output">patches