FSK Radio Modem Board
The FSK modem is used for MOSCAD FSK communications via conventional or trunking radios. The FSK modem plugs into jack 14 of the MOSCAD CPU and includes an RJ-45 8-pin jack for radio connection. The FSK modem is equipped with a 68HC11 CPU operating at 3MHz.

DPSK Modem Board Communication can be established via a trunk or conventional radio link using this DPSK Modem Board which serves as a modem-radio interface. The modem board uses the Differential Phase Shift Keying modulation technique and operates at a rate of 1200 bps.