IU5PTB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IU5PTB, decoded by SO8OO in southeastern Poland. 173 related FT8 messages, 4 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 29 UTC dates. Heard between 2026-05-19 and 2026-08-16.
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 IU5PTB worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by IU5PTB
Approximate centre of JN53, decoded 2026-08-13 19:46 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 | IU5PTB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-20 13:45 | 20m | -10 / - | RW9WT | - / -11 | 7 | Partial capture |
| 08-16 20:03 | 10m | - / - | PA1GLD | -13 / - | 2 | Partial capture |
| 08-16 19:57 | 20m | -14 / - | CR5VP | - / -16 | 2 | Partial capture |
| 08-15 20:33 | 40m | - / - | 9A1CCB | -2 / - | 3 | Partial capture |
| 08-15 20:14 | 40m | -14 / - | CR5VP | - / -18 | 2 | Partial capture |
| 08-15 20:11 | 40m | -7 / - | CR5VP | - / -18 | 2 | Partial capture |
| 08-15 16:59 | 20m | - / -8 | CR5VP | -16 / - | 2 | ✓ Closing fragment |
| 08-13 19:46 | 80m | - / - | DO9BAU | +2 / - | 4 | Partial capture |
| 08-13 19:40 | 80m | -8 / - | OL900CO | - / -12 | 2 | Partial capture |
| 08-11 09:27 | 20m | -11 / - | CR5VP | - / -7 | 6 | Partial capture |
| 08-11 05:26 | 40m | -17 / - | OA4ENG | - / -15 | 2 | Partial capture |
| 08-09 20:47 | 40m | -15 / - | CR5VP | - / -12 | 3 | ✓ Closing fragment |
| 08-09 20:44 | 40m | -15 / - | OH0ERF | - / -14 | 4 | ✓ Closing fragment |
| 08-09 20:32 | 80m | -20 / - | CR5VP | -23 / -10 | 4 | ✓ Closing observed |
| 08-08 20:32 | 20m | - / - | EA5JYL | -10 / - | 2 | Partial capture |
| 08-08 20:12 | 20m | -17 / - | ZZ2DX | - / - | 3 | Partial capture |
| 08-08 20:11 | 20m | -18 / - | PY1EPC | - / - | 2 | Partial capture |
| 08-08 20:09 | 20m | -12 / - | LW5DR | - / -12 | 3 | ✓ Closing fragment |
| 08-06 14:36 | 20m | - / - | F5PBG | -8 / - | 4 | Partial capture |
| 08-06 14:33 | 20m | - / -5 | MI0JZZ | -7 / - | 2 | ✓ Closing fragment |
| 08-04 17:53 | 40m | - / - | US3EW | -13 / - | 2 | Partial capture |
| 08-04 17:40 | 40m | -11 / - | RA9UES | - / - | 13 | Partial capture |
| 08-04 17:35 | 40m | -18 / - | BA4IE | - / - | 3 | Partial capture |
| 07-31 09:28 | 20m | -7 / - | V31DL | - / -12 | 2 | Partial capture |
| 07-29 16:33 | 10m | 0 / - | CX2SA | - / -11 | 5 | Partial capture |
| 07-29 16:31 | 10m | -6 / - | TN8GD | - / +1 | 2 | Partial capture |
| 07-29 16:26 | 10m | -6 / - | PU2LSP | - / -16 | 2 | Partial capture |
| 07-29 16:23 | 10m | -8 / - | J66BF | - / -19 | 2 | ✓ Closing fragment |
| 07-29 16:21 | 10m | -2 / - | CA3SQH | - / -9 | 2 | ✓ Closing fragment |
| 07-28 20:15 | 40m | -14 / - | VK6BAD | - / - | 3 | ✓ Closing fragment |
| 07-28 20:10 | 40m | -10 / - | C31EA | - / - | 2 | Partial capture |
| 07-28 20:05 | 40m | -14 / - | HL4GAV | - / - | 6 | Partial capture |
| 07-28 20:00 | 40m | -14 / - | JA9APS | - / -20 | 4 | ✓ Closing fragment |
| 07-22 13:21 | 20m | -12 / - | VR2VAZ | - / -22 | 2 | Partial capture |
| 07-22 13:15 | 20m | -16 / - | BG8HNC | - / -20 | 3 | Partial capture |
| 07-22 13:09 | 20m | -16 / - | YB8EGI | - / -12 | 4 | Partial capture |
| 07-21 08:38 | 20m | -15 / -4 | OE6TNO | +1 / -3 | 4 | ✓ Full exchange observed |
| 07-21 08:31 | 20m | -13 / - | TJ1GD/P | - / -11 | 4 | ✓ Closing fragment |
| 07-21 08:30 | 20m | - / -8 | PD1ADA | -17 / - | 5 | Partial capture |
| 07-21 08:28 | 20m | -13 / - | TA4INO | - / -14 | 3 | Partial capture |
| 07-21 08:26 | 20m | -8 / - | 5N0YEN | - / - | 2 | Partial capture |
| 07-20 20:05 | 40m | -7 / - | YC2BUZ | - / -11 | 5 | Partial capture |
| 07-20 20:02 | 40m | -5 / - | VJ6X | - / -19 | 5 | ✓ Closing fragment |
| 07-20 20:01 | 40m | -2 / - | JH2FXK | - / -14 | 2 | Partial capture |
| 07-18 21:31 | 20m | +1 / - | DS2MGT | - / -19 | 2 | ✓ Closing fragment |
| 07-18 21:23 | 20m | -8 / - | DU1RAA | - / -16 | 11 | Partial capture |
| 07-18 21:21 | 20m | -8 / - | JA5EEU | - / -21 | 3 | ✓ Closing fragment |
| 07-18 21:18 | 20m | -10 / - | DS2MGT | - / -21 | 3 | Partial capture |
| 07-18 21:13 | 20m | -8 / -7 | SQ5OMY | -3 / -16 | 8 | ✓ Full exchange observed |
| 07-18 15:53 | 40m | - / 0 | SQ5OMY | -14 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 092800 -8 529 CR5VP IU5PTB -07 (x4) 165945 -16 1276 IU5PTB CR5VP R-08 (x2) 195730 -9 829 CR5VP IU5PTB -16 (x2) 134530 -16 643 RW9WT IU5PTB -11 (x7)
UTC dB Audio Message 162230 -9 331 LU5BRS IU5PTB -05 162300 -10 331 J66BF IU5PTB -19 (x2) 162600 -5 332 PU2LSP IU5PTB -16 (x2) 163115 -6 332 TN8GD IU5PTB +01 (x2) 163330 -7 332 CX2SA IU5PTB -11 (x5) 193000 -13 1136 CR5VP IU5PTB JN53 200330 -15 1524 IU5PTB PA1GLD JO21 (x2)
UTC dB Audio Message 204445 -15 1103 OH0ERF IU5PTB JN53 (x3) 204730 -15 1104 CR5VP IU5PTB JN53 (x3) 052645 -16 1108 OA4ENG IU5PTB JN53 (x2) 201100 -7 1297 CR5VP IU5PTB -18 (x4) 203330 +0 1297 IU5PTB 9A1CCB JN85 (x3)
UTC dB Audio Message 203300 -23 1354 IU5PTB CR5VP RR73 203315 -19 1072 CR5VP IU5PTB 73 194045 -8 1925 OL900CO IU5PTB -12 (x2) 194130 -7 1865 IU5PTB LZ01MIKU R-02 194300 +0 1824 IU5PTB F5RRS JN36 194545 -4 1925 CQ IU5PTB JN53 (x2) 194630 +5 1924 IU5PTB OK1AYM JO70 194630 +4 2302 IU5PTB DO9BAU JO62 (x2) 194715 -8 1925 SV9MBH IU5PTB RR73 194730 +1 2301 IU5PTB DO9BAU JO62 (x3)
UTC dB Audio Message 200815 -20 1281 9X5KM IU5PTB -14 (x4) 201400 -9 773 IU5PTB 9X5KM R-17 (x2) 201445 -19 1281 9X5KM IU5PTB RR73
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.