The K701 digital receiver from Innovative Integration supports one or two plug-in FMC modules each providing up to eight independent channels of DDC and one spectrum analyzer embedded in a Xilinx Kintex-7 FPGA. It allows users to monitor the wide-band or narrow band spectrum and record the data directly from the ADCs or downconvert the channels modulated on the IF Band. The receiver can do contiguous recording at 1600 MByte until running out of disk space.

Each DDC has its own programmable tuner, programmable low- pass filtering, gain control, and decimation setting, supporting output bandwidth up-to 50 MHz. The data is packetized in VITA 49 format with the accurate timestamps, synchronous to the external PPS signal. The DDC channel can be enabled and disabled on the fly to save the storage and bandwidth to the host computer. The embedded power meter monitors the power (dBFS) of the ADC inputs, allowing users to perform possibly analog gain control in the external front-end device, not included in the system.

The spectrum analyzer, including windowing, calculates the wide- band spectrum of the ADC data or the narrow-band spectrum of the DDC output data at the programmable update rate. The maximum hold helps to retain the information in the spectrum and the programmable threshold monitoring spectrum detects the spectral activities up to 512 bins.

A development kit is available for custom designs. Users can insert custom-made cores to create more advanced applications.