AJS37 Viggen RWR sound codes illustrated

[Flappie]

Hey fellow Viggen pilots!

I've been busy recording, listening to, then drawing sound codes that come from our beloved RWR in order to display them on a "map" the size of a kneeboard page.

If you find any error, please send me a private message or ping me here. I'm aware a lot of equipment are not listed yet. I might start a second page someday. If you want to help me with that, go ahead!

https://www.digitalcombatsimulator.com/en/files/3345141/

HOW TO READ THIS PAGE:

Radar emissions are sorted by length, from shortest to longest.
Each tone is represented by a colour.
Scan tones are displayed in the top half of the page.
Lock and Track tones are displayed in the bottom half.

HOW TO IDENTIFY A RADAR EMISSION:

Start by measuring the entire loop duration, which includes the silent part.
If the loop duration is less than 5 seconds, look at the first "Scan" chart.
If the loop is longer, look at the second "Scan" chart.
Now, try to identify the sequence you're hearing, according to the estimated loop duration, the number of tones and their height.
If there is no silent part, look at the "Lock" and "Track" charts and try to recognize the frequency you're hearing in order to determine what is interested in you...
... but you'd better close that kneeboard and use your afterburner third stage to get away from here already!!!

EXAMPLES:

If you're hearing "doo-DEE-doo-DEE ---------------------------------------" and the whole loop lasts about 2 seconds, it's an F-16 pilot scanning the area.
If you're hearing "doo----------------------DEE----------------------" and the whole loop lasts 5 seconds, your are being scanned by a MiG-29 or a Su-27 variant.
If the tone you're hearing is a continuous and very high-pitch "DEEEEEEEEEEEEEEEEEE", you're being tracked by a SA-3 or ZSU-23-4 unit.

Edited June 23 by Flappie
fixed M-2000 scan signal duration

[Spirale]

Amazing thx a lot!

[Flappie]

You're welcome.

2025-06-23 update : the M-2000 scan signal duration was incorrect (2 s -> 2.4 s)

[Flappie]

The RWR was updated with today's update. If anyone knows what was changed, please PM me so I can update the sheet.

Quote

Changes to the RWR

• Updated database to be closer to the F-4’s

 

[IronMike]

Fantastic work @Flappie - thank you very much! While a very late reply, I felt it was overdue to say it. 

I forwarded your request to the team. 

Edited 3 hours ago by IronMike