SP4C — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP4C, decoded by SO8OO in southeastern Poland. 154 related FT8 messages, observed on 80m, 40m, 20m, 10m, across 15 UTC dates. Heard between 2026-05-23 and 2026-08-19.
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 SP4C worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by SP4C
Approximate centre of KO14, decoded 2026-08-19 20:33 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 | SP4C S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-19 20:19 | 40m | -8 / - | 5A1AL | - / -19 | 17 | Partial capture |
| 07-09 10:47 | 20m | - / - | 9A6T | -14 / - | 2 | ✓ Closing fragment |
| 07-09 10:42 | 20m | - / - | DL1R | -2 / - | 7 | Partial capture |
| 07-09 10:42 | 20m | - / -4 | RN6MA | -4 / - | 5 | ✓ Closing fragment |
| 07-09 10:34 | 20m | - / - | IK4LZH | +4 / - | 2 | Partial capture |
| 07-09 10:29 | 20m | - / - | M7NFV | -5 / - | 3 | Partial capture |
| 07-07 11:10 | 20m | - / - | DJ0MAB | -19 / - | 3 | Partial capture |
| 06-27 09:27 | 10m | - / -13 | SV2CLJ | 0 / - | 3 | ✓ Closing fragment |
| 06-27 09:06 | 10m | - / - | DK7UY | +2 / - | 2 | Partial capture |
| 06-27 08:51 | 10m | - / - | UA4FKT | -8 / - | 2 | Partial capture |
| 06-27 08:49 | 10m | - / - | PG9S | +4 / - | 3 | ✓ Closing fragment |
| 06-26 10:41 | 10m | - / - | DK8HC | -10 / - | 2 | Partial capture |
| 06-26 10:39 | 10m | - / +6 | F5CUN | -4 / - | 13 | Partial capture |
| 06-26 10:27 | 10m | - / -7 | UR5VPR | -18 / - | 4 | Partial capture |
| 06-26 10:21 | 10m | - / - | SV8DCW | -16 / - | 2 | ✓ Closing fragment |
| 06-26 10:14 | 10m | - / -11 | DC5IU | -10 / - | 2 | Partial capture |
| 06-26 10:13 | 10m | - / - | UR5VPR | 0 / - | 2 | Partial capture |
| 06-26 10:12 | 10m | - / - | DO1FDK | -4 / - | 3 | Partial capture |
| 06-21 20:35 | 40m | -9 / - | TN8GD | - / -12 | 2 | Partial capture |
| 06-21 20:27 | 40m | -8 / - | D4OL | - / -13 | 4 | Partial capture |
| 06-21 15:51 | 10m | - / - | UA4FKT | -14 / - | 3 | Partial capture |
| 06-12 08:57 | 10m | - / +3 | EW8DU | +9 / - | 4 | ✓ Closing fragment |
| 06-12 08:54 | 10m | - / +2 | HB9TVS | +1 / - | 2 | ✓ Closing fragment |
| 06-12 08:52 | 10m | - / - | HB9ACA | -8 / - | 2 | ✓ Closing fragment |
| 06-12 08:46 | 10m | - / - | IN3IZQ | -5 / - | 7 | Partial capture |
| 06-12 08:46 | 10m | - / -4 | F1PBZ | +5 / - | 2 | Partial capture |
| 06-12 08:45 | 10m | - / - | E75FM | -3 / - | 3 | Partial capture |
| 06-03 19:44 | 20m | -14 / - | VP8NO | - / -13 | 3 | Partial capture |
| 05-31 20:41 | 40m | +5 / - | TL8BNW | - / -18 | 6 | Partial capture |
| 05-31 20:26 | 40m | +2 / - | TL8BNW | - / -15 | 9 | Partial capture |
| 05-30 21:16 | 80m | - / - | PE1NPS | -5 / - | 3 | Partial capture |
| 05-30 21:15 | 80m | +10 / +5 | CU2AP | 0 / -11 | 4 | ✓ Full exchange observed |
| 05-30 21:03 | 80m | +5 / -11 | ZW5B | -18 / - | 3 | ✓ Closing observed |
| 05-30 21:02 | 80m | +5 / - | HS0ZKB | - / -14 | 3 | ✓ Closing fragment |
| 05-30 20:57 | 80m | +8 / - | OJ0Z | -5 / - | 2 | ✓ Closing observed |
| 05-30 20:46 | 80m | +4 / - | OJ0Z | - / -2 | 9 | Partial capture |
| 05-30 20:41 | 80m | +1 / - | OJ0Z | - / -3 | 3 | Partial capture |
| 05-30 20:36 | 80m | - / - | R3LDK | +2 / - | 2 | Partial capture |
| 05-30 20:32 | 80m | -1 / - | OJ0Z | - / -8 | 2 | Partial capture |
| 05-30 16:09 | 20m | - / -9 | R6DVV | -12 / - | 4 | Partial capture |
| 05-28 20:27 | 40m | - / - | SP1I | +3 / - | 3 | Partial capture |
| 05-28 20:25 | 40m | +10 / - | <...> | - / -16 | 5 | Partial capture |
| 05-28 20:23 | 40m | +8 / - | TT1GD | - / -17 | 3 | Partial capture |
| 05-28 20:14 | 40m | +5 / - | <...> | - / -16 | 3 | Partial capture |
| 05-28 20:02 | 40m | +6 / - | HB0/DL2SBY | - / -16 | 4 | Partial capture |
| 05-28 19:58 | 40m | +16 / - | R2EA/M | - / -13 | 4 | Partial capture |
| 05-28 10:23 | 20m | - / - | F4HSB | -23 / - | 3 | Partial capture |
| 05-27 21:14 | 20m | - / - | F5OYA/P | -8 / - | 12 | Partial capture |
| 05-27 12:01 | 20m | - / - | M0XAN | -2 / - | 4 | Partial capture |
| 05-27 12:00 | 20m | - / -7 | DH3KR | -14 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 202345 -6 1337 5A1AL SP4C -21 (x12) 203345 -3 1087 TN8GD SP4C KO14 203930 -15 1435 SP4C SN1A JO73 204330 -16 1088 VK2NN SP4C -18
UTC dB Audio Message 104215 -2 1515 SP4C RN6MA -04 104245 -20 1615 SP4C YU7XL -11 104245 -4 1515 SP4C RN6MA -04 104315 +1 2722 SP4C DL1R JN58 104315 -6 1515 SP4C RN6MA -04 104345 -3 2722 SP4C DL1R JN58 104345 -3 1515 SP4C RN6MA -04 104415 -2 2722 SP4C DL1R JN58 104415 -3 1515 SP4C RN6MA RR73 104445 +0 2722 SP4C DL1R JN58 (x3) 104715 -15 1178 SP4C 9A6T RR73 (x2) 200930 -15 1874 SP4C EC3A RR73
UTC dB Audio Message 104445 -5 425 SP4C F5CUN R+08 (x4) 084945 +6 2776 SP4C PG9S JO32 (x2) 085115 -8 2842 SP4C UA4FKT LO23 085115 +5 2775 SP4C PG9S 73 085245 -9 2842 SP4C UA4FKT LO23 090600 +2 2841 SP4C DK7UY JO44 (x2) 092630 -15 833 SP4C CR7BRV R-04 092745 +1 776 SP4C SV2CLJ R-13 (x3)
UTC dB Audio Message 205830 +1 1618 ZW5B SP4C -19 (x2) 210200 +7 1619 HS0ZKB SP4C KO14 (x3) 210315 -18 2246 SP4C ZW5B -11 (x2) 210400 +5 1619 ZW5B SP4C 73 211545 +10 1619 CU2AP SP4C -11 211600 +2 844 SP4C CU2AP R+05 211615 +11 1619 CU2AP SP4C RR73 211630 -6 2303 SP4C PE1NPS JO22 211630 -2 844 SP4C CU2AP R+05 211700 +0 2303 SP4C PE1NPS JO22 (x2)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.