STANAG-4529

General Information

STANAG-4529 is a NATO standard for secure maritime digital data communication with data rates ranging from 75 to 1800 bit/s.

Usage:

§ Transfer of maritime related digital information over HF.

Mode Details

Parameter

Value

Symbol rate (Bd)

1200

Bandwidth (Hz)

1300

Short interleaver (s)

1.706

Long interleaver (s)

20.480

Data rate (bit/s)

75

150

300

600

1200

600

1200

1800

Modulation

BPSK

BPSK

BPSK

BPSK

QPSK

8PSK

BPSK

8PSK

Error correction

CR 1/8

CR 1/4

CR 1/2

CR 1/2

CR 2/3

none

none

none

Interleaving

Short/
Long

Short/
Long

Short/
Long

Short/
Long

Short/
Long

none

none

none

Table 24: STANAG-4529 Standard

 

Item

Value

Demodulator Settings

Demodulator

PSK data aided

 

Symbol rate (Bd)

1200

 

SR tolerance (Bd)

6

 

Modulation order

8

 

Version

A

 

Min. burst length (s)

0.100

 

Max. burst length (s)

1.000

 

Min. pause length (s)

0.100

Features

Demodulation

yes

 

Recognition

yes

 

Decoding

yes

 

Automatic Polarity Adjustment

no

 

Combination with other modems (modem list)

yes

 

Channel 2 STANAG-5066 text output

yes

Tuning

The tuning frequency is the center of the signal’s frequency range

 

Table 25: STANAG-4529

Figure 22: STANAG-4529 Spectrogram

Modem Version History

Release

Date

History

2.0.0

2013-01-10

Modem added

2.2.0

2014-03-19

Data format 7N2 added

 

 

Long interleaving corrected