Some mid-tier radios and most advanced radios have rolling code encryption as an optional feature. Rolling code is used for more sensitive applications. The difference with rolling code vs simple inversion is the number of codes (1020 for rolling) and the 'rolling' inversion of the signal that make it more difficult to break. As with simple inversion, only radios using the same frequency, with the same privacy code, the same encryption key, and within range of your signal, will be able to hear your transmissions. The keys are set in the radio by programming software. Most radios with rolling code encryption have 1020 encryption keys to choose from. You can even hoot up a USB microphone to talk over the music. It’s easy to set up and you can play music on any application such as Spotify or iTunes. Our new Windows desktop software lets you and your DJs broadcast live from your computer or laptop. It is a more robust form of encryption than simple voice inversion. Broadcaster is a simple way for you to broadcast your shows online. Then, it reverses direction and inverts at lower frequencies until it reaches the lower limit. As shown in figure 3 on the left, the signal starts at an upward inversion frequency direction and climbs to the upper limit. Rolling code inversion uses a method where the voice signal is inverted at a constantly changing rate. Many entry-level and mid-tier radios have this type of encryption built-in. This type of encryption provides enough protection for most two-way radio users. Only radios using the same frequency, with the same privacy code, the same encryption key, and within range of your signal, will be able to hear your transmissions. The keys are set in the radio through radio programming software. Most two-way radios with simple voice inversion have 32 different encryption keys to choose from.

In figure 1 on the left, all the voice signal frequencies at 300Hz are inverted to 3kHz. Inversion scrambling inverts the frequencies and volume of the voice signal. Kenwood Ham Radio Programming Software Crackl

Free radio programing software