The POLYPMI1000 from Technology Service Corporation is an Up/Down converter that operates from 4.0 to 8.0 GHz. This converter consists of an RF attenuator that provides attenuation from 0 to 31.75 dB in steps of 0.25 dB, an internal LO synthesizer or external LO input and nulling control, and offers software programmability via GUI or custom program. It is programmed via a Windows-based soft front panel or custom program using the supplied API manual. This POLYPMI1000 does not require a host computer and stores user settings in non-volatile memory to recall them during power-up operation. It contains two internal PLO blocks that alleviate the need for external LO sources.
The primary PLO is capable of sourcing both the up-converter and down-converter in transceiver applications. The secondary PLO supports independent upconverter and downconverter applications that require different LO frequencies. The secondary PLO along with internal DACs and ADCs allows for automated LO nulling across the entire 4.0 to 8.0 GHz band. This up/down converter is specifically designed for transceiver applications.
