Challenges involving DVB transport streams, MPE and GSE reassembly, maintenance-log decoding, and QPSK signal recovery.
| # | Challenge | Points | Flag |
|---|---|---|---|
| 1 | 801-torn-frames | 50 | GAIANSPACE{burst_r3align_sdt_r3ad} |
| 2 | 802-sections-in-the-static | 75 | GAIANSPACE{mpe_dgram_r3assembly} |
| 3 | 803-frames-inside-frames | 100 | GAIANSPACE{gse_fr4g_crc32_ok} |
| 4 | 804-lost-sync | 100 | GAIANSPACE{syncd_led_me_home} |
| 5 | 805-the-last-carrier | 125 | GAIANSPACE{qpsk_sof_lock_carrier} |