Emissions Designator 39K9G1D
Bandwidth: 39.9 kHz
Modulation Type: [G] Angle-modulated, phase modulation (common; sounds like FM)
Modulation Nature:  Digital, on-off or quantized, no modulation
Information Type: [D] Data, telemetry, telecommand
The Emissions Designator 39K9G1D 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 39.9 kHz [39K9] maximum bandwidth . bandwith does not indicate frequency of the signal. Emissions Designators describe the type of signal only.