Home Research Technical Development Submillimeter Technology Data Processing SOFIA Data Processing GREAT - Transmission Details GREAT - Transmission Details upGREAT 4GREAT HFA LFA Band 1 Band 2 Band 3 Band 4 Usage: Play the slideshows and pause at the desired frequency for a close-up inspection. Transmission HFA Transmission HFA Transmission LFA 4GREAT Band 1 Transmission 4GREAT Band 2 Transmission 4GREAT Band 3 Transmission 4GREAT Band 4