SRAL @ Disobey26

Thanks for visiting Community Village and SRAL booth there! Hope you had a pleasant stay!

SRAL badge base firmware is now open sourced at https://github.com/sral-fi/SRAL-SAO2-basefw. The repo contains also the game firmware, so you may return back to it after your own experiments.

SRAL CTF TOP-3

SRAL had a CTF that spanned from the physical world through radio waves into CTF game network (Radio Controller Challenge) and to SRAL badge.

We awarded with SRAL badge all those who managed to hack the Radio Controller and were able to steer the antenna towards QO-100 amateur satellite. After that it was possible to continue the CTF inside the badge.

Here's TOP-3 overall scores for the SRAL CTF:

#1 nakit-ja-muusi	38789 points	1001011110000101
#2 bemyak 		37121 points	1001000100000001
#3 hyppykeppi		4353  points 	0001000100000001

Congratulations!

Flags (points):

RadioController / Antenna steering		1 -- Got SRAL badge!
Physical Flag at SRAL booth			2
Modified RS41 radiosonde APRS flag		4
Various amateur radio related commands (badge)	8-64
Debug command in badge CLI (badge)		16
CQ'ing DX in HAMQuest contest (badge)		64
SRAL Meshtastic flag				128
>4700 points in DX Hunt (badge)			256
Modified RS41 radiosonde, CW flag		512
Flag hidden into local DVB-S TV transmission	1024
Blinkmode flag (badge)				2048
HAMQuest completed (badge)			4096
BadgeGPT flag (badge)				8192
Password hash flag (badge)			16384
Flag hidden in badge EEPROM (badge)		32768

More from SRAL

Antenna workshop material will be published (soon) at sral.fi where you can also find lots of information about amateur radio (briefly in English, broader sites in Finnish and Swedish).

Updated: 2026-02-16