S57XX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving S57XX, decoded by SO8OO in southeastern Poland. 135 related FT8 messages, 10 CQ messages, observed on 40m, 20m, 10m, across 28 UTC dates. Heard between 2026-05-30 and 2026-08-22.
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 S57XX worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by S57XX
Approximate centre of JN76, decoded 2026-08-22 10:41 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 | S57XX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-22 10:41 | 20m | +13 / -12 | UF4S/P | -9 / -12 | 4 | ✓ Full exchange observed |
| 08-21 09:25 | 10m | - / - | LZ4VR | -10 / - | 2 | Partial capture |
| 08-21 09:24 | 10m | 0 / - | RK6ZX | - / -12 | 2 | ✓ Closing fragment |
| 08-21 09:21 | 10m | - / +4 | UA6YW | -10 / - | 2 | ✓ Closing fragment |
| 08-21 09:21 | 10m | - / - | DN9OPA | +6 / - | 11 | Partial capture |
| 08-21 09:19 | 10m | - / - | DG2SAT | -10 / - | 2 | Partial capture |
| 08-21 08:31 | 10m | - / +7 | TA6B | -11 / - | 4 | ✓ Closing fragment |
| 08-12 05:32 | 20m | +6 / - | KD6DX | - / - | 2 | Partial capture |
| 08-12 05:31 | 20m | +12 / - | N7WFK | - / -22 | 2 | ✓ Closing fragment |
| 08-12 05:30 | 20m | +9 / - | W6TOX | - / - | 3 | Partial capture |
| 08-12 05:29 | 20m | -4 / - | KR3Y | - / -14 | 2 | Partial capture |
| 08-12 05:26 | 20m | +1 / - | ZL4TT | - / -25 | 6 | ✓ Closing fragment |
| 08-12 05:24 | 20m | -7 / - | N5CH | - / - | 3 | ✓ Closing fragment |
| 08-12 05:21 | 20m | -7 / - | KD6DX | - / - | 2 | Partial capture |
| 08-10 05:35 | 20m | +5 / - | PA3CPS | -5 / - | 3 | ✓ Closing observed |
| 08-10 05:33 | 20m | +4 / - | DG3BZ | - / -19 | 2 | ✓ Closing fragment |
| 08-10 05:32 | 20m | +1 / - | W4EIS | - / -25 | 3 | ✓ Closing fragment |
| 08-10 05:31 | 20m | -1 / - | K5MGY | - / -19 | 2 | ✓ Closing fragment |
| 08-04 18:42 | 20m | - / 0 | TC3CT | -6 / - | 2 | ✓ Closing fragment |
| 07-26 09:52 | 10m | - / +4 | F5ADE | -14 / - | 2 | Partial capture |
| 07-18 04:09 | 40m | 0 / - | <...> | - / - | 5 | Partial capture |
| 07-18 03:33 | 40m | -3 / - | LU1AEE | - / -25 | 4 | ✓ Closing fragment |
| 07-18 03:30 | 40m | -2 / - | KJ5PTH | - / -5 | 4 | ✓ Closing fragment |
| 07-18 03:27 | 40m | +1 / - | N8SLT | - / -15 | 3 | ✓ Closing fragment |
| 07-18 03:26 | 40m | +2 / - | RW9WJ | - / - | 2 | Partial capture |
| 07-18 03:24 | 40m | -2 / - | TJ1GD/P | - / - | 2 | ✓ Closing fragment |
| 07-18 03:15 | 40m | +2 / - | UB3ADO/P | - / -17 | 6 | Partial capture |
| 07-17 07:15 | 20m | +17 / - | RK0SC | - / -9 | 5 | ✓ Closing fragment |
| 07-17 07:13 | 20m | +2 / - | R8LCX | - / -14 | 3 | Partial capture |
| 07-17 05:46 | 20m | - / - | UA3QRH | -18 / - | 2 | ✓ Closing fragment |
| 07-14 13:26 | 20m | +11 / - | OK2VCR | - / -12 | 2 | ✓ Closing fragment |
| 07-14 13:23 | 20m | +10 / - | <...> | - / -21 | 3 | Partial capture |
| 07-12 17:13 | 20m | +4 / - | 7N4BAI | - / -25 | 2 | Partial capture |
| 07-12 17:11 | 20m | +7 / - | BG7ZHS | - / -15 | 4 | ✓ Closing fragment |
| 07-11 09:01 | 20m | -2 / - | RU8KAM | - / - | 2 | Partial capture |
| 07-11 08:57 | 20m | 0 / - | OK1UOZ | - / -6 | 2 | ✓ Closing fragment |
| 07-11 08:56 | 20m | -2 / - | IW9FRA | - / -2 | 3 | ✓ Closing fragment |
| 07-09 06:29 | 40m | -6 / - | OK1ZJK | - / - | 2 | ✓ Closing fragment |
| 07-09 06:19 | 20m | -16 / - | <...> | - / - | 2 | Partial capture |
| 07-07 17:01 | 40m | +3 / - | <...> | - / -23 | 2 | Partial capture |
| 07-07 10:36 | 20m | +8 / -8 | HA1BF | -14 / -20 | 5 | ✓ Full exchange observed |
| 07-07 08:56 | 20m | +14 / - | RO2E/M | - / -24 | 6 | Partial capture |
| 07-07 08:48 | 20m | +5 / - | <...> | - / - | 4 | Partial capture |
| 07-07 08:47 | 20m | +10 / - | LA/OH9DVN | - / - | 2 | Partial capture |
| 07-06 15:25 | 20m | +2 / - | R8CHN/P | - / -18 | 4 | ✓ Closing fragment |
| 07-06 04:28 | 40m | -16 / - | OA4ENG | - / -24 | 2 | ✓ Closing fragment |
| 07-05 15:47 | 40m | -14 / - | UA3QHF | - / -18 | 3 | ✓ Closing fragment |
| 07-04 17:31 | 40m | -4 / -6 | S53WWA | -11 / - | 4 | ✓ Closing observed |
| 07-04 17:21 | 40m | -4 / - | SP5AKI | - / +4 | 3 | ✓ Closing fragment |
| 07-04 17:19 | 40m | -5 / - | VJ6X | - / -10 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 052815 +13 2523 ZL4TT S57XX JN76 (x2) 052915 -1 2523 KR3Y S57XX JN76 (x2) 053045 +7 2523 W6TOX S57XX JN76 (x2) 053145 +14 2523 N7WFK S57XX -22 (x2) 053245 +6 2522 KD6DX S57XX JN76 053315 +6 2523 W6TOX S57XX JN76 053345 +7 2522 KD6DX S57XX JN76 104145 +8 1515 UF4S/P S57XX JN76 104200 -9 1229 S57XX UF4S/P -12 104215 +16 1514 UF4S/P S57XX R-12 (x2)
UTC dB Audio Message 092200 +7 2893 S57XX DN9OPA JN38 092200 -9 1790 S57XX UA6YW RR73 092230 +9 2893 S57XX DN9OPA JN38 (x5) 092445 -4 1791 RK6ZX S57XX R-12 092500 +7 2893 S57XX DN9OPA JN38 092500 -14 2399 S57XX EB3BRC JN01 092515 +4 1791 RK6ZX S57XX 73 092530 +3 2893 S57XX DN9OPA JN38 092530 -11 1400 S57XX LZ4VR KN13 092600 +3 2893 S57XX DN9OPA JN38 092600 -9 1400 S57XX LZ4VR KN13
UTC dB Audio Message 032815 -1 2675 N8SLT S57XX 73 033045 -3 2674 KJ5PTH S57XX JN76 (x4) 033315 -3 2448 LU1AEE S57XX -25 (x4) 033545 -7 806 R6ZEJ S57XX +04 040945 +1 2660 <...> S57XX JN76 (x5)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.