Is there anything new that a licensed SCADA radio company can bring to the unlicensed space?
The remarkable technological evolution introduced by QAM to licensed radio-based field area networks has seen this solution come of age with good vendor support and wide adoption by utilities as well as the oil and gas industries.
Many users have abandoned unlicensed systems for the interference-free security and capacity of these licensed systems. However, the attraction of unlicensed radio remains. There will always be applications that don’t require the complexity of coordination and ACMA apparatus approach.
A new breed of radio has emerged that delivers the sophistication of modern licensed radio solutions and the modulation efficiency of QAM to the 915 to 928 MHz class licence SRD frequency range. Under the ACMA class licence users are not afforded protection from interference caused by other services at 900 MHz and in many areas the band is heavily used. With a tailored approach to interference mitigation by combining time-sliced fast frequency hopping with advanced forward error correction (FEC) and packet synchronised selective ARQ, an innovative design that combats interference has been developed. Borrowing advances made in the licensed space, including a clever access control MAC implementation, these devices can deliver more usable throughput and reduced latency. This session will describe the technology and highlight practical deployment examples.