BR-6028

From Signal Identification Wiki
Jump to: navigation, search
BR-6028
BR-6028 RTTY.jpg
Frequencies 13458.20 khz13,458,200 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
13.458 MHzMegaHertz (MHz) 10^6 Hz
,15937.00 khz15,937,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
15.937 MHzMegaHertz (MHz) 10^6 Hz
,5750.0 kHzKiloHertz (kHz) 10^3 Hz5,750,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
5.75 MHzMegaHertz (MHz) 10^6 Hz
,8045 kHzKiloHertz (kHz) 10^3 Hz8,045,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
8.045 MHzMegaHertz (MHz) 10^6 Hz
,11010.00 kHzKiloHertz (kHz) 10^3 Hz11,010,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
11.01 MHzMegaHertz (MHz) 10^6 Hz
5,750 kHzKiloHertz (kHz) 10^3 Hz
5.75 MHzMegaHertz (MHz) 10^6 Hz
15,937 kHzKiloHertz (kHz) 10^3 Hz
15.937 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 5.75 MHzMegaHertz (MHz) 10^6 Hz5,750,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
5,750 kHzKiloHertz (kHz) 10^3 Hz
- 15.937 MHzMegaHertz (MHz) 10^6 Hz15,937,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
15,937 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 FSKFrequency-Shift Keying
ACFAutoCorrelation Function
Bandwidth 3100 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).3.1 kHzKiloHertz (kHz) 10^3 Hz
0.0031 MHzMegaHertz (MHz) 10^6 Hz
3.1 kHzKiloHertz (kHz) 10^3 Hz
0.0031 MHzMegaHertz (MHz) 10^6 Hz
3.1 kHzKiloHertz (kHz) 10^3 Hz
0.0031 MHzMegaHertz (MHz) 10^6 Hz
Location Worldwide
Short Description BR-6028 is a VFTVoice Frequency Telegraphy (Voice Frequency Telegraph) frequency and time diversity modem using 7 data channels. It is sometimes also known as BARRIE, USA-7, or 6028.
I/Q Raw Recording
Audio Sample
BR-6028 is a VFTVoice Frequency Telegraphy (Voice Frequency Telegraph) frequency and time diversity modem using 7 data channels. The BR Communications 6029C Modem and MD-1142/UGC Modem supported this signal.

Consists of multiple channels over one audio bandwidth with a pilot tone at ~560 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).. Used by the US Military and Canadian Military, as well as many forces worldwide, in a special BR-6028 specification where each channel signal carries the same information but delayed by one second from the previous one (which can be seen in the ASCII mode image). This helps with error correction. In addition, certain channels which are severely affected by propagation conditions can be entirely turned off, so signals with less than 7 channels can be seen.

In addition, reports have confirmed that a variation of BR-6028 was used by some countries that had Channel 2 entirely turned off, while leaving the rest on.

There are several modulation modes used by BR-6028. The most common one seen is RTTY. BR-6028 has also been seen with ASCII, ARQ-E, and Link-14.

The RTTYRadio TeleTYpe mode uses between 45 and 100 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., with 170 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). shift in each channel. The ASCII mode uses between 30 and 110 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second., with 150 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). shift in each channel. The ARQAutomatic Repeat reQuestAutomatic Repeat Query-E was reported to run at 46.15 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. with a 4-character repetition cycle, and the Link-14 one at 75 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second..

No logs of BR-6028 have been seen since 2012.


Samples[edit]

RTTYRadio TeleTYpe Mode
Intro Traffic
BR-6028 intro.jpg
BR-6028 RTTY.jpg

ASCII Mode

Intro Traffic
BR 6028 ASCII.jpg
BR6028 ASCII.jpg

Various Audio Samples[edit]


BR-6028 with RTTYRadio TeleTYpe.

BR-6028 with 2G ALE mid-transmission

BR-6028 with 2G ALE at the end of transmission.

Video Examples[edit]

Additional Links[edit]

Additional Images[edit]