GALFA Spectrometer System Pictures


Click on image thumbnails for full-sized (1024x768) versions

Spectrometer Board

Spectrometer board from the first (test) run Spectrometer board from the second (production) run; assembled with cPCI mounting hardware and FPGA heatsink
 
Another view of second-run board, assembled with cPCI faceplate  


Quadrature Downconverter

Quadrature downconverter board Inside of downconverter enclosure
 
Downconverter enclosure front panel  


Testing

Downconverter test setup Full GALFA system test (simulating 2 beams input)
 
A full 7-spectrometer test  


Installation at Arecibo Observatory

Top of multi-beam receiver at Arecibo feeding GALFA spectrometer Bottom of multi-beam receiver feeding GALFA spectrometer
Downconverter and LO distributor installed at Arecibo Spectrometer boards in cPCI rack installed and operational at Arecibo
 
Full GALFA system installed and operational at Arecibo