STANAG 4539

STANAG 4539

Frequencies	3 MHz,30 MHz
Frequency Range	3 MHz - 30 MHz
Mode	USB
Modulation	PSK,QAM
ACF	119.6 ms
Emission Designator	—
Bandwidth	3 kHz
Location	Worldwide
Short Description	STANAG 4539 or MIL-STD-188-110B/C Appendix C is a HDR (110B) / MDR (110C) serial PSK/QAM signal that can reach speeds up to 9600 bps (12800 bps with no interleaving).
I/Q Raw Recording	—
Audio Sample

STANAGNATO Standardization Agreement (STANAG), defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the North Atlantic Treaty Organization (NATO). 4539 or MIL-STD-188-110B/C Appendix C is a HDR (110B) / MDR (110C) serial PSKPhase-Shift Keying/QAMQuadrature Amplitude Modulation signal that can reach speeds up to 9600 bpsBits per second (bps) (12800 bpsBits per second (bps) with no interleaving). In 110B, this was designated as High Data Rate, but in 110C, this mode was recategorized Medium Data Rate. It is officially designated as "HFHigh Frequency (3-30 MHz) data waveforms for data rates above 2400 bpsBits per second (bps) in 3 kHzKiloHertz (kHz) 10^3 Hz channels."

Has similar operation and parameters as the mandatory MIL-STD-188-110 Serial mode, but uses different modulations and higher speeds. In addition, each speed except for 12800 bpsBits per second (bps) has 6 different interleaving modes. Ultra Short, Very Short, Short, Medium, Long, and Very Long.

Modulation Modes of STANAGNATO Standardization Agreement (STANAG), defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the North Atlantic Treaty Organization (NATO). 4539

Data Rate (bpsBits per second (bps))	Bits per Symbol (Modulation)	FECForward Error Correction Encoding Rate
12800 bpsBits per second (bps)	6 (64QAM)	None
9600 bpsBits per second (bps)	6 (64QAM)	3/4
8000 bpsBits per second (bps)	5 (32QAM)	3/4
6400 bpsBits per second (bps)	4 (16QAM)	3/4
4800 bpsBits per second (bps)	3 (8PSK8-Phase Phase-Shift Keying (3 bits per symbol))	3/4
3200 bpsBits per second (bps)	2 (QPSKQuadrature Phase-Shift Keying (2 bits per symbol))	3/4

Samples

QAMQuadrature Amplitude Modulation 8000 Med	QAMQuadrature Amplitude Modulation 8000 Very Short	QPSKQuadrature Phase-Shift Keying (2 bits per symbol) 3200 Short	64-QAMQuadrature Amplitude Modulation 9600 Short

Decoding Software

Hobby Level Software

• Sorcerer

Professional Software

• go2DECODE
• go2MONITOR
• Rohde&Schwarz CA100

Additional Links

• shoc Database: STANAG 4539
• WAVECOM Database: STANAG 4539
• Department of Defense Interface Standard: Interoperability and Performance Standards for Data Modems MIL-STD-188-110B
• Department of Defense Interface Standard: Interoperability and Performance Standards for Data Modems MIL-STD-188-110C with CHANGE 1
• Blog I5-56587

Additional Images

STANAGNATO Standardization Agreement (STANAG), defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the North Atlantic Treaty Organization (NATO). 4539 32QAM, 8000 bpsBits per second (bps) phase constellation (about 45 degrees off phase) STANAGNATO Standardization Agreement (STANAG), defines processes, procedures, terms, and conditions for common military or technical procedures or equipment between the member countries of the North Atlantic Treaty Organization (NATO). 4539 using 8PSK8-Phase Phase-Shift Keying (3 bits per symbol)