GMSK Transparent Modem (NSN 5895-33-204-4689)
Model P9907 is an external GMSK modem, for use with any radio capable to provide the necessary signals to the modem.
This modem is extremely reliable and robust, and it is widely used in telecommand, telecontrol and supervision applications, specially in those applications where the speed provided by FSK and FFSK modems is not enough.
It employs FFSK modulation, with a synchronous data over radio protocol providing a high channel efficiency. It can be supplied with RS-232 or RS-422/RS-485 data interfaces.