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Viability of open GSM stacks and equipment

Viability of open GSM stacks and equipment

Posted Sep 30, 2010 12:54 UTC (Thu) by Cyberax (✭ supporter ✭, #52523)
In reply to: Viability of open GSM stacks and equipment by Cato
Parent article: GSM security testing: where the action is

Range of coverage can actually be better in 4G technologies. First, they are going to use more robust and efficient radio modulation technologies. I know that it's being specifically worked on.

For GSM maximum distance is limited to about 40km (by lightspeed so you can't do anything about it). It's quite feasible that 4G technologies will allow 50-70km maximum distance to tower.

UMTS is quite far from ideal here. We've learned a lot since it was first designed.


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Viability of open GSM stacks and equipment

Posted Sep 30, 2010 19:42 UTC (Thu) by Jan_Zerebecki (guest, #70319) [Link]

> For GSM maximum distance is limited to about 40km (by lightspeed so you can't do anything about it).

Usually the range is limited to the distance the signal can travel in one timeslot, but it seems you can do something about it if your BTS is modified to allow the signal to arrive in the next timeslot.

Viability of open GSM stacks and equipment

Posted Sep 30, 2010 19:50 UTC (Thu) by Cyberax (✭ supporter ✭, #52523) [Link]

Yes, it's sometimes used. But not all devices will work in this case, and GSM you can get issues with interference.

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