F5SJC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F5SJC, decoded by SO8OO in southeastern Poland. 450 related FT8 messages, 80 CQ messages, observed on 40m, 20m, 10m, across 38 UTC dates. Heard between 2026-05-28 and 2026-08-23.
These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.
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Overview
Frequent QSO partners observed at SO8OO
Stations F5SJC worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by F5SJC
Approximate centre of JN05, decoded 2026-08-24 08:44 UTC. A transmitted locator is not proof of the operator's permanent location.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | F5SJC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-24 08:50 | 10m | -11 / - | DN9KL | - / -14 | 2 | Partial capture |
| 08-24 08:44 | 10m | -7 / - | E75BK | - / -13 | 3 | ✓ Closing fragment |
| 08-24 08:30 | 10m | -9 / - | UX2SB | - / +6 | 3 | ✓ Closing fragment |
| 08-23 22:23 | 40m | - / - | IK4LZH | +6 / - | 3 | Partial capture |
| 08-23 22:16 | 40m | -4 / - | PD1SL | - / +1 | 3 | ✓ Closing fragment |
| 08-23 22:12 | 40m | -4 / - | RA0SCA | - / - | 2 | Partial capture |
| 08-23 22:02 | 40m | -1 / - | F4MBU | - / - | 3 | Partial capture |
| 08-23 21:58 | 40m | -7 / -3 | II7MGMU | -12 / +6 | 3 | Partial capture |
| 08-23 21:57 | 40m | 0 / - | M7KIU | -13 / -10 | 3 | ✓ Closing observed |
| 08-23 21:54 | 40m | -7 / - | G6NMA | - / -1 | 3 | Partial capture |
| 08-23 21:51 | 40m | -1 / - | N1SK | - / -1 | 3 | ✓ Closing fragment |
| 08-23 21:50 | 40m | -10 / - | CU5AQ | -22 / +3 | 2 | ✓ Closing observed |
| 08-23 21:48 | 40m | 0 / - | M0PEI | - / +1 | 2 | Partial capture |
| 08-23 21:45 | 40m | -2 / - | GM5DNA | - / +3 | 3 | ✓ Closing fragment |
| 08-23 21:42 | 40m | +2 / - | M0ZJB | - / +5 | 4 | Partial capture |
| 08-23 21:39 | 40m | -8 / - | M9PJC | - / -1 | 3 | ✓ Closing fragment |
| 08-23 21:35 | 40m | -6 / -4 | ON1BH | -3 / +6 | 4 | ✓ Full exchange observed |
| 08-23 21:31 | 40m | -6 / - | HA8BE | - / - | 2 | Partial capture |
| 08-23 21:30 | 40m | -10 / - | M7BSI | - / +1 | 3 | ✓ Closing fragment |
| 08-23 21:29 | 40m | -7 / - | GM2OT | -24 / -9 | 2 | ✓ Closing observed |
| 08-23 21:27 | 40m | -3 / - | DL4KSD | - / 0 | 3 | ✓ Closing fragment |
| 08-23 21:23 | 40m | -7 / -6 | G0JJL/P | -8 / -8 | 3 | Partial capture |
| 08-23 21:19 | 40m | -13 / - | EA8DNB | - / +1 | 3 | ✓ Closing fragment |
| 08-23 21:14 | 40m | -7 / -3 | G4CFS | -7 / +6 | 7 | ✓ Full exchange observed |
| 08-23 21:12 | 40m | -7 / - | EA3HKA | - / - | 3 | ✓ Closing fragment |
| 08-23 21:11 | 40m | -8 / - | BG2ATH | - / - | 2 | Partial capture |
| 08-23 21:09 | 40m | -6 / +5 | G3ZSU | +4 / +5 | 6 | ✓ Full exchange observed |
| 08-23 21:04 | 40m | -3 / -20 | RA4PIS | 0 / -9 | 3 | ✓ Full exchange observed |
| 08-23 21:00 | 40m | -8 / +10 | MW7RHR | -16 / - | 4 | ✓ Closing observed |
| 08-23 12:46 | 10m | - / -11 | LZ1EV | +12 / - | 2 | ✓ Closing fragment |
| 08-22 13:06 | 10m | -10 / - | SP7SZJ | - / - | 2 | ✓ Closing fragment |
| 08-22 13:00 | 10m | -12 / - | DO2DK | - / -2 | 2 | Partial capture |
| 08-22 12:59 | 10m | -20 / - | DO1YSF | - / - | 2 | ✓ Closing fragment |
| 08-22 02:40 | 40m | -11 / - | R3RB | - / -3 | 3 | ✓ Closing fragment |
| 08-21 06:16 | 40m | - / +2 | ON4VMA | -21 / - | 2 | ✓ Closing fragment |
| 08-21 06:13 | 40m | - / - | DL4ME | -1 / - | 2 | ✓ Closing fragment |
| 08-21 05:59 | 40m | - / +1 | DM5KM | +2 / - | 2 | ✓ Closing fragment |
| 08-21 05:57 | 40m | - / -13 | ON4AOI | +8 / - | 2 | ✓ Closing fragment |
| 08-21 05:53 | 40m | -20 / +1 | G1CSO | -15 / - | 5 | ✓ Full exchange observed |
| 08-21 05:42 | 40m | -18 / - | OA4ENG | - / +4 | 2 | ✓ Closing fragment |
| 08-21 05:38 | 40m | -12 / +6 | DL7ROB | +6 / -2 | 5 | ✓ Full exchange observed |
| 08-21 05:31 | 40m | - / -13 | SP3IPA | -6 / - | 2 | ✓ Closing fragment |
| 08-20 20:27 | 40m | -12 / - | M9POB | - / 0 | 3 | ✓ Closing fragment |
| 08-20 20:24 | 40m | - / -6 | DL2CZ | -1 / - | 2 | Partial capture |
| 08-20 20:19 | 40m | -8 / +8 | M0VCP | -6 / +4 | 5 | ✓ Full exchange observed |
| 08-20 20:18 | 40m | -6 / - | EA2DR | - / - | 3 | ✓ Closing fragment |
| 08-20 20:17 | 40m | 0 / -6 | SV1TRJ | -17 / - | 4 | Partial capture |
| 08-20 20:13 | 40m | -2 / +4 | SQ1MNG | +1 / +1 | 6 | ✓ Full exchange observed |
| 08-20 20:13 | 40m | -6 / -15 | UB6OCP | -11 / -9 | 7 | ✓ Full exchange observed |
| 08-20 20:11 | 40m | -3 / -7 | OL900CO | +3 / +2 | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 130330 -8 312 DN9WES F5SJC JN05 130600 -11 495 SP7SZJ F5SJC JN05 (x2) 131645 -8 495 GB1TMH F5SJC 73 131815 -8 495 DN9LUZ F5SJC 73 124600 +12 1234 F5SJC LZ1EV -11 (x2) 083030 -8 756 UX2SB F5SJC JN05 (x3) 084445 -7 677 E75BK F5SJC JN05 (x3) 085045 -13 677 DN9KL F5SJC -14 (x2)
UTC dB Audio Message 220200 +0 780 F4MBU F5SJC JN05 (x3) 221215 -5 942 RA0SCA F5SJC JN05 (x2) 221315 -4 942 GB64MOD F5SJC R-05 221600 -2 1240 PD1SL F5SJC JN05 (x3) 222100 +1 287 CQ F5SJC JN05 (x3) 222315 +4 438 F5SJC IK4LZH JN54 (x3)
UTC dB Audio Message 052545 -1 335 S56EPX F5SJC 73 (x2) 052645 -2 269 CQ F5SJC JN05 052715 +0 374 S56EPX F5SJC 73 052745 -8 374 CQ F5SJC JN05 (x2) 052845 -2 373 5Z4VJ F5SJC -05 (x2) 052945 -1 374 CQ F5SJC JN05 053100 -9 373 5Z4VJ F5SJC R-04 053400 +0 373 OH6IH F5SJC JN05 (x3) 053945 -4 334 UA3VVA F5SJC JN05 (x2)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.