Here are the NRG Manuals in a single .pdf file  for. PRO 3 CONTROLLED STEREO CODER PRO3 STEREO/LIMITER COMPRESSOR NRG PRO3 HI-GAIN 1-4 WATT TRANSMITTER https://www.dropbox.com/s/jkhipwe5w4n1vp0/NRG%20Manual.pdf