The radio band that is right for you will depend primarily on your area of operation. If you will be operating the radios in largely open areas then you should operate on the VHF band. However, If you will be using the radios in or around large concrete structures or buildings you should operate on the UHF band. Simply put, if your area of operations is a low density suburb or a rural area then you should pick VHF. Inversely if you are primarily operating in dense suburbs or Cities then you should pick UHF. This is because VHF waves tend to travel farther in open areas whereas UHF waves tend to do better at penetrating obstacles.
DMR stands for Digital Mobile Radio and is an operating standard for digital radio communications. Unlike analog radios digital radios convert transmitions into digital signals that are then decoded on the receiving radio(s).
Benefits of DMR
Increased signal range
Improved battery life
Note: that all of the DMR radios we sell are also capable of transmitting in Analog mode and are compatible with other Analog radios of the same band (UHF/VHF)
RC4 Encryption offers users considerably more security than that of Analog scrambling or unencrypted digital communications. Decryption of RC4 Encryption without the encryption key would require considerable time as well as advanced knowledge and equipment / software. However, it is theoretically possible for an advanced adversary to intercept and decode RC4 encrypted communications.
AES-256 bit Encryption is the gold standard for secure radio communications. AES-256 is the encryption standard used by the US military and other government agencies to secure sensitive communications. AES-256 bit encryption is widely believed to be secure from unauthorized decryption with currently known technology.