Contesting & SDR
Amateur Radio on its edge
A couple of minutes ago I was informed by Bob 5B4AGN that he developed W3NQN style Bandpass filters. Probably the most important information is that he is taking orders for PCB.
Did you ever think that your GSM phone calls are encrypted and can’t be monitored? Well, unfortunately GSM has been cracked. Last week Steve Gibson explained in his weekly Podcast Security Now! how GSM can be cracked.
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