Low Cost Microwave Radio
Our client had identified a market opportunity for a multi-rate (n x 64kbps) microwave link product for the telecoms industry. With our expertise in digital radio, we were able to move from concept to professional standard product in just 14 months.
Westica, a supplier of microwave radio products to the telecoms industry, identified a global market opportunity for a multi-rate (n x 64kbps) microwave link product. With our track record in designing digital radios, Westica approached us for help with design and development.
We assembled a multi-skilled team comprising engineers experienced in radio system RF, DSP digital hardware and software and mechanical design.
With our in-house knowledge, we used software radio techniques to design a flexible low-cost product which also included cutting edge features such as:
a wide tuning range, with low-phase noise Fractional-N synthesisers, employing Sigma-Delta reference spur reduction techniques – implemented on FPGAs
re-programmable digital IF software in both transmitter and receiver, allowing for variable bit and symbol rates
digital baseband filters which allowed software-variable channel bandwidth
a modem implemented on a FPGA, allowing software-variable modulation constellation
variable error correction/parity, with re-configurable software
an external data interface implemented on a FPGA, allowing remote upgrade
By using software radio techniques we were able to go from concept to a professional standard radio product in just 14 months. All of the software re-configurable features can be remotely upgraded with the conventional software, so that a complete radio upgrade can be achieved without a site visit. The microwave radio is type approved to ETS 300 630 and MPT 1717.