The Global Professional Agile Frequency Converter is a low cost, high performance upconverter and downconverter, upconverting frequencies from the 70-140MHz band up to L-Band or a 70MHz wide band down to 70-140MHz from the 970MHz–2170MHz band.
It is often used to enable monitoring of the 70MHz output of a modulator using a low cost L-band receiver or it is also used to generate test signals for factories and test/repair facilities and can be used with analogue or digital signals.