SP4TBJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP4TBJ, decoded by SO8OO in southeastern Poland. 316 related FT8 messages, 34 CQ messages, observed on 80m, 40m, 20m, 10m, across 26 UTC dates. Heard between 2026-06-01 and 2026-08-04.
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 SP4TBJ worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by SP4TBJ
Approximate centre of KO13, decoded 2026-07-06 19:59 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 | SP4TBJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-04 20:00 | 20m | - / - | F1MPQ | -4 / - | 2 | Partial capture |
| 08-04 19:57 | 20m | - / -13 | UA3VVA | -11 / - | 3 | ✓ Closing fragment |
| 08-01 22:48 | 40m | - / -1 | OZ5GW | -17 / - | 2 | Partial capture |
| 08-01 22:47 | 40m | - / -9 | DH5BM | -14 / - | 3 | ✓ Closing fragment |
| 08-01 22:45 | 40m | - / -16 | UB3AMO | -6 / - | 2 | ✓ Closing fragment |
| 08-01 11:52 | 20m | - / - | R4HLO | -22 / - | 2 | Partial capture |
| 07-29 19:44 | 40m | - / - | RL3K | -14 / - | 5 | Partial capture |
| 07-29 19:42 | 40m | - / -2 | R5AV | -12 / - | 2 | Partial capture |
| 07-29 01:58 | 40m | - / - | RK4CH | -18 / - | 4 | Partial capture |
| 07-29 01:52 | 40m | - / -15 | DK5ON | -20 / - | 3 | Partial capture |
| 07-29 01:49 | 40m | - / - | OO0O | -10 / - | 6 | Partial capture |
| 07-29 01:41 | 40m | - / -8 | R4ML | -11 / - | 3 | ✓ Closing fragment |
| 07-28 06:57 | 20m | - / - | R5AV | -18 / - | 3 | ✓ Closing fragment |
| 07-26 13:12 | 20m | - / +1 | E70SZ | -5 / - | 8 | ✓ Closing fragment |
| 07-26 13:11 | 20m | - / - | RA6OY | -3 / - | 6 | Partial capture |
| 07-17 02:28 | 40m | - / -2 | F5SJC | -14 / - | 2 | Partial capture |
| 07-17 02:22 | 40m | - / -8 | PD1BER | -17 / - | 3 | ✓ Closing fragment |
| 07-13 12:16 | 10m | - / -14 | F1PBZ | +2 / - | 3 | Partial capture |
| 07-13 12:13 | 10m | - / -11 | F4LNM | -18 / - | 3 | ✓ Closing fragment |
| 07-13 12:12 | 10m | - / -9 | RN6MA | -6 / - | 2 | ✓ Closing fragment |
| 07-13 00:16 | 20m | - / - | R2AL | +3 / - | 3 | ✓ Closing fragment |
| 07-07 02:29 | 40m | - / -18 | R2RCQ | -19 / - | 5 | ✓ Closing fragment |
| 07-07 02:28 | 40m | - / - | IK4LZH | -9 / - | 3 | Partial capture |
| 07-07 02:17 | 20m | - / +6 | DL9KM | -6 / - | 3 | ✓ Closing fragment |
| 06-29 21:51 | 40m | -22 / - | DA0WWA | - / - | 2 | Partial capture |
| 06-26 02:29 | 20m | - / - | UR4QWW | -16 / - | 2 | ✓ Closing fragment |
| 06-25 19:57 | 80m | - / - | DB4MLA | +8 / - | 2 | Partial capture |
| 06-25 19:57 | 80m | +8 / - | F5RRS | +4 / -8 | 6 | Partial capture |
| 06-25 19:48 | 80m | +10 / -10 | R2SN | +10 / -7 | 8 | ✓ Full exchange observed |
| 06-25 19:47 | 80m | - / -7 | SV1MNE | -19 / - | 2 | Partial capture |
| 06-25 19:46 | 80m | - / - | US1VS | -5 / - | 3 | Partial capture |
| 06-25 19:46 | 80m | +10 / 0 | E70SZ | +10 / -4 | 6 | ✓ Full exchange observed |
| 06-25 19:33 | 80m | +7 / -13 | 4Z5AV | -8 / -10 | 3 | ✓ Full exchange observed |
| 06-25 19:30 | 80m | +6 / +8 | SP5DFK | -2 / -16 | 4 | ✓ Full exchange observed |
| 06-25 19:26 | 80m | -1 / -11 | RT6Z | 0 / -8 | 7 | ✓ Full exchange observed |
| 06-25 19:25 | 80m | +4 / +3 | SP3WAL | 0 / -15 | 5 | ✓ Full exchange observed |
| 06-25 19:25 | 80m | +8 / -9 | SV9MBH | -13 / -11 | 4 | ✓ Full exchange observed |
| 06-23 02:40 | 20m | - / -14 | V31DL | -10 / - | 3 | ✓ Closing fragment |
| 06-20 07:32 | 20m | - / - | F1PSX | -4 / - | 16 | Partial capture |
| 06-19 22:32 | 20m | - / -16 | F5PBG | -8 / - | 6 | Partial capture |
| 06-18 01:00 | 80m | -11 / 0 | SP3HUU | +9 / -5 | 5 | ✓ Full exchange observed |
| 06-18 00:39 | 20m | - / - | EA1IOK | +3 / - | 2 | Partial capture |
| 06-17 20:49 | 40m | - / -6 | OZ5AGJ | -8 / - | 3 | ✓ Closing fragment |
| 06-16 22:52 | 40m | - / -15 | LB7PJ | -7 / - | 3 | ✓ Closing fragment |
| 06-16 22:51 | 40m | -7 / - | DH1HF | -13 / -18 | 3 | ✓ Closing observed |
| 06-16 22:48 | 40m | - / -2 | IK4LZH | +8 / - | 3 | ✓ Closing fragment |
| 06-16 22:05 | 20m | - / -9 | <...> | +2 / - | 3 | Partial capture |
| 06-14 20:53 | 10m | - / - | F4BJN | -12 / - | 4 | Partial capture |
| 06-14 11:09 | 20m | - / -13 | DH1FA | -16 / - | 2 | ✓ Closing fragment |
| 06-14 11:08 | 20m | -24 / - | R2BRD | -24 / - | 2 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 065415 -23 1579 SP4TBJ EA1AEC IN52 065445 -19 1577 SP4TBJ R5AV -02 (x4) 115030 -8 2779 SP4TBJ F1PBZ -09 115200 -21 1573 SP4TBJ R4HLO LO43 (x2) 115300 -4 569 SP4TBJ IU5HIU JN53 195715 -9 2258 SP4TBJ UA3VVA LO06 (x3) 200045 -3 1576 SP4TBJ F1MPQ JN08 (x3)
UTC dB Audio Message 194230 -12 1539 SP4TBJ R5AV -02 (x2) 194430 -15 2293 SP4TBJ RL3K KO91 (x5) 224530 -3 1537 SP4TBJ UB3AMO R-16 (x2) 224700 -15 1537 SP4TBJ DH5BM JO41 (x3) 224800 -17 1951 SP4TBJ OZ5GW JO45 (x2) 225030 -7 439 SP4TBJ DL7ACA R-05
UTC dB Audio Message 101830 -15 1460 SP4TBJ DL5ALF R-09 101900 -13 1594 SP4TBJ M0IOW IO90 101930 -17 1460 SP4TBJ DL5ALF R-09 205330 -13 1591 SP4TBJ F4BJN JN25 (x4) 121200 -7 1591 SP4TBJ RN6MA -09 (x2) 121300 -22 1592 SP4TBJ F4LNM JN09 (x3) 121630 +0 2740 SP4TBJ F1PBZ -14 (x3)
UTC dB Audio Message 195830 +9 815 F5RRS SP4TBJ -08 195845 +5 1830 SP4TBJ F5RRS JN36 195900 +4 814 F5RRS SP4TBJ -07 (x2) 200830 +13 1502 CQ SP4TBJ KO13 (x11)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.