PRC-16

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PRC-16
PRC-16.jpg
Frequencies 14.300 MHzMegaHertz (MHz) 10^6 Hz14,300,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
14,300 kHzKiloHertz (kHz) 10^3 Hz
14,300 kHzKiloHertz (kHz) 10^3 Hz
14.3 MHzMegaHertz (MHz) 10^6 Hz
14,300 kHzKiloHertz (kHz) 10^3 Hz
14.3 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 14.3 MHzMegaHertz (MHz) 10^6 Hz14,300,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
14,300 kHzKiloHertz (kHz) 10^3 Hz
- 14.3 MHzMegaHertz (MHz) 10^6 Hz14,300,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
14,300 kHzKiloHertz (kHz) 10^3 Hz
Mode USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables)
Modulation PSKPhase-Shift Keying,OFDMOrthogonal Frequency-Division Multiplexing
ACFAutoCorrelation Function
Bandwidth 2.2 kHzKiloHertz (kHz) 10^3 Hz2,200 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.0022 MHzMegaHertz (MHz) 10^6 Hz
2.2 kHzKiloHertz (kHz) 10^3 Hz
0.0022 MHzMegaHertz (MHz) 10^6 Hz
2.2 kHzKiloHertz (kHz) 10^3 Hz
0.0022 MHzMegaHertz (MHz) 10^6 Hz
Location China
Short Description PRC-16 is a Chinese sourced PSKPhase-Shift Keying data link, traced to Shanghai. Suspected user Chinese Military.
I/Q Raw Recording
Audio Sample
PRC-16 is a Chinese sourced PSKPhase-Shift Keying data link, traced to Shanghai. Suspected user Chinese Military. A woman speaking Chinese has been heard on this frequency before.

An idle tone that repeats every 720ms is possibly a marker to keep the channel free from interfering operators. The data portion of the signal always occurs in a burst, and follows a very similar format to MIL-STD-188-110 App.A 16-tone OFDM, only lacking the pilot tone. PRC-16 has been seen using BPSKBinary Phase-Shift Keying (1 bit per symbol) modulation in it's subcarriers at 75bd each. Each burst lasts about 1150 msmilliseconds (.001 of a second) (600ms for preamble, 550ms for the 16x75 BPSKBinary Phase-Shift Keying (1 bit per symbol) waveform). An interesting characteristic is the 4xBPSK mode right after the toned preamble but before the 16x75 waveform.

Samples[edit]

Sample 1:

Sample 2:

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