Wi-Fi through one FPGA input — exact received packet Brian Greenforest · September 17, 2026 129-byte 802.11 beacon, including FCS; no repaired or redacted bytes. ESP8266 device addresses published with the owner's explicit permission. PCAP timestamp is synthetic zero; its radiotap flag marks FCS-present. Frame control (0..1): 80 00 — management / beacon Duration (2..3): 0 us Destination (4..9): ff:ff:ff:ff:ff:ff Transmitter (10..15): de:4f:22:5e:d0:2a BSSID (16..21): de:4f:22:5e:d0:2a Sequence control (22..23): 0x41d0 Beacon TSF (24..31): 1557706550 us Beacon interval (32..33): 100 TU Capabilities (34..35): 0x0001 IE 0 SSID (36..49): HITL-RX-TEST IE 1 Supported rates (50..55): 82 84 8b 96 IE 3 DS channel (56..58): 6 IE 221 Vendor test field (59..124): 0b 30 55 7a 9f c4 e9 0e 33 58 7d a2 c7 ec 11 36 5b 80 a5 ca ef 14 39 5e 83 a8 cd f2 17 3c 61 86 ab d0 f5 1a 3f 64 89 ae d3 f8 1d 42 67 8c b1 d6 fb 20 45 6a 8f b4 d9 fe 23 48 6d 92 b7 dc 01 26 FCS (125..128), transmitted little-endian: 88 79 f9 58 CRC32(frame[0:125]): 0x58f97988 — PASS Known bytes at offsets 61..124: (37*i + 11) mod 256, i=0..63 — 512/512 bits match. PHY header, separate from the MAC frame: 0a 04 08 04 f5 cb SIGNAL: 1 Mb/s; LENGTH: 1032 us; CRC16 valid. OFFSET HEX ASCII 0000 80 00 00 00 ff ff ff ff ff ff de 4f 22 5e d0 2a ...........O"^.* 0010 de 4f 22 5e d0 2a d0 41 36 b7 d8 5c 00 00 00 00 .O"^.*.A6..\.... 0020 64 00 01 00 00 0c 48 49 54 4c 2d 52 58 2d 54 45 d.....HITL-RX-TE 0030 53 54 01 04 82 84 8b 96 03 01 06 dd 40 0b 30 55 ST..........@.0U 0040 7a 9f c4 e9 0e 33 58 7d a2 c7 ec 11 36 5b 80 a5 z....3X}....6[.. 0050 ca ef 14 39 5e 83 a8 cd f2 17 3c 61 86 ab d0 f5 ...9^.....