1. P

    OP25 Add RC4 (ADP) decryption

    I'd like to add ADP decryption capability to OP25. I have been doing research for a while about RC4 cipher (a.k.a. Motorola ADP), so I do know how the cipher works. I have some experience programming in C, so I'd like to know where I should start. It would be great if Boatbod gave me a hand with...
  2. S

    How do you decode digital signals?

    Ok I've got a rtlsdr dongle and sdr sharp running and I can pick up loads of signals but the only ones I can hear in the clear are conventional radio stations. There seems to be a lot of digital stations but sdr sharp doesn't seem to decode them, any ideas would be appreciated???