>So who actually needs AES256 to encrypt 24 bit length of data in 100ns? [edit] 100nS is modulation timing granularity ( 1.6 us to 40us) 24bits supposedly is transmission block length, not necessarily length of data entity. Anyway I agree that 256bits could be overkill, especially for slow speed communications where it is hard to gather enough data for rainbow attack. Sometimes manufacturer have no other choice than to follow (even stupid) requirements of potential buyer. >Who needs strict 360-425MHz UHF range? Why not. 360-425 MHz supposedly is tuning range of the radio. You are welcome to familiarize yourself with SCADA radio transceivers. One particular that comes into mind as an example is Racom RipEx .
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