Servsat offres a good selection of Up and Downconverters in one chassis from Atlantic Satellite Corporation, Newtec and Comtech EFData.
Newtec Up and Down Converter FRC0730. The FRC0730 upconverts IF signals (70 or 140 MHz) to L-band (950–2150 MHz) and simultaneously downconverts L-band signals (950–2150 MHz) to IF.
Comtech EF Data Up/Down Converter Model LBC-4000 L-Band IF to 70 MHz IF