In the framework of the ITASEL project a completely new and challenging fast spectrometer named SPECTRA-2 was developed.
The spectrometer is based on FPGA technolgy and allows realtime elaboration of two simultaneous analog inputs, performing fine channelization using polyphase filterbanks to isolate with a high rejection the different subbands.
Each board can have up to four AD converters working at 1 GS/s and 8 bit each, thus processing in realtime four different bands of 500MHz each. Data are then managed by the FPGA hardware which ensures high performances, flexibility and low power consumption, also easing the development process leading to short deploy times of new instruments.
The board is easily controlled via standard 10/100 ethernet interface implenting a simple communication protocol which permits an easy integration of the instrument in different antenna control systems.