The Tone Receiver/Decoder is a rack-mount receiver that will display the presence of any of the 20 IRIG standard tones either transmitted individually or in combination as command tones (e.g. Monitor, Arm, Destruct, etc.). It accepts a universal AC power input and can be tuned in 100kHz steps for carrier signals in the range of 406MHz – 450MHz compliant to RCC 313 and 319 for compliant IRIG tones. The rear panel connections include RF input, signal strength (front panel displayed as well), and decoded channel outputs of the 20 tone detector circuits. An optional remote control interface is also available which enables control in Local Mode or Remote Mode using an RS-232 or GPIB interface.