Starter kits for operating frequencies of 315MHz, 433MHz and 868MHz to evaluate a complete RF link. Besides the ATA8741/42/43 transmitter, these kits include a receiver board equipped with ATA8203/04/05 plus an ATmega88 AVR microcontroller and feature a secure rolling code transmission algorithm. That algorithm uses the Advanced Encryption Standard (AES) which is particularly useful for security applications like alarm systems.