Emissions Designator 1M66F1D
Bandwidth: 1.66 MHz
Modulation Type: [F] Angle-modulated, straight FM
Modulation Nature:  Digital, on-off or quantized, no modulation
Information Type: [D] Data, telemetry, telecommand
The Emissions Designator 1M66F1D signifies a wireless radio which transfers data over a modulated wave using Digital, on-off or quantized, no modulation signal. This signal transmits at a 1.66 MHz [1M66] maximum bandwidth . bandwith does not indicate frequency of the signal. Emissions Designators describe the type of signal only.