PRC-16

From Signal Identification Wiki
Jump to: navigation, search

PRC-16
PRC-16.jpg
Frequencies 14.3 MHz
Frequency Range 14.3 MHz - 14.3 MHz
Mode USB
Modulation PSK,OFDM
ACF
Bandwidth 2.2 kHz
Location China
Short Description PRC-16 is a Chinese sourced PSK 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 its 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:

Additional Links[edit]

Additional Images[edit]