Grrr, this topic was meant to be about GSM scrambler, right? Now 5 pages of teaching 20 years old guy wwhat square meter is, and so goes on? C'mon... I had to go through 80% of thead (unrelated pages), just to be sure that no single on-topic, useful post slipped in and got drowned, inside all this "setting up your first home wifi" tutorial. --- I suppose, that scrambling (.ie, in our case, generqating strong enough random noise, or maybe some bogus, pisoned replies?) isn't possible, due to how closed GSM modem stuff is - pity, as it would be interesting proof-of-concept. Even with very short range (like, insoide single room). /Estel