Z81D — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving Z81D, decoded by SO8OO in southeastern Poland. 1,717 indexed activity records, involving 40m, 20m, 10m. Heard between 2026-06-21 and 2026-08-30.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
Overview
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with Z81D in decoded directed-looking exchanges:
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 | Z81D S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-12 21:33 | 40m | - / - | E72DX | -6 / - | 2 | Partial capture |
| 07-12 21:32 | 40m | - / - | IZ3ODB | -14 / - | 5 | Partial capture |
| 07-12 21:30 | 40m | - / - | HB9EFK | +4 / - | 2 | Partial capture |
| 07-12 21:30 | 40m | - / - | 9A4ZM | -14 / - | 3 | Partial capture |
| 07-12 21:27 | 40m | - / - | G4RCV | -14 / - | 5 | Partial capture |
| 07-12 21:27 | 40m | - / - | SP2JLR | -16 / - | 4 | Partial capture |
| 07-12 21:26 | 40m | - / - | F4EAR | -17 / - | 3 | Partial capture |
| 07-12 21:26 | 40m | - / - | EA1KCU | -12 / - | 4 | Partial capture |
| 07-12 21:24 | 40m | - / - | GI4DOH | -12 / - | 4 | Partial capture |
| 07-12 21:21 | 40m | - / - | IZ3ODB | -6 / - | 8 | Partial capture |
| 07-12 21:19 | 40m | - / -14 | DK5ON | -10 / - | 2 | Partial capture |
| 07-12 21:18 | 40m | - / - | DF7EF | -6 / - | 24 | Partial capture |
| 07-12 21:18 | 40m | - / - | IU4COO | -13 / - | 24 | Partial capture |
| 07-12 21:18 | 40m | - / - | ON6JN | -8 / - | 3 | Partial capture |
| 07-12 21:18 | 40m | - / -25 | YT6AAA | -7 / - | 15 | ✓ Closing fragment |
| 07-12 21:16 | 40m | - / - | EA7LIC | -9 / - | 23 | Partial capture |
| 07-12 21:16 | 40m | - / -10 | LA2XUA | -7 / - | 6 | ✓ Closing fragment |
| 07-12 21:15 | 40m | - / - | HG8LXL | -6 / - | 2 | Partial capture |
| 07-12 21:15 | 40m | - / - | IQ4JO | -10 / - | 30 | Partial capture |
| 07-12 21:13 | 40m | - / - | DL1BJL | -24 / - | 2 | Partial capture |
| 07-12 21:12 | 40m | - / -16 | OE6JGG | -3 / - | 4 | Partial capture |
| 07-12 21:12 | 40m | - / - | LZ2EW | -13 / - | 2 | Partial capture |
| 07-12 21:11 | 40m | - / - | CR7BRV | -14 / - | 2 | Partial capture |
| 07-12 21:11 | 40m | - / - | IZ8YAA | -17 / - | 3 | Partial capture |
| 07-12 21:11 | 40m | - / - | OK1UG | -6 / - | 8 | Partial capture |
| 07-12 21:10 | 40m | - / - | SP4TKA | -7 / - | 5 | Partial capture |
| 07-12 21:10 | 40m | - / - | SP5CJY | -10 / - | 2 | Partial capture |
| 07-12 21:09 | 40m | - / - | 9A7BB | -16 / - | 8 | Partial capture |
| 07-12 21:09 | 40m | - / -23 | DL5DQZ | +1 / - | 19 | Partial capture |
| 07-12 21:09 | 40m | - / - | SP5ILO | -20 / - | 3 | Partial capture |
| 07-12 21:08 | 40m | - / -20 | OE6JGG | -6 / - | 3 | Partial capture |
| 07-12 21:07 | 40m | - / - | UT2VX | -3 / - | 25 | Partial capture |
| 07-12 21:07 | 40m | - / - | UB3YGA | -22 / - | 2 | Partial capture |
| 07-12 21:06 | 40m | - / - | DF7EF | -6 / - | 10 | Partial capture |
| 07-12 21:04 | 40m | - / - | SP2JLR | -10 / - | 3 | Partial capture |
| 07-12 21:03 | 40m | - / -15 | IU0VYT | -5 / - | 9 | ✓ Closing fragment |
| 07-12 21:03 | 40m | - / -20 | G4RCV | -15 / - | 14 | Partial capture |
| 07-12 21:02 | 40m | - / - | OK1UG | -4 / - | 12 | Partial capture |
| 07-12 21:01 | 40m | - / -17 | SP5CJY | -9 / - | 5 | Partial capture |
| 07-12 21:01 | 40m | - / -10 | S59YL | -12 / - | 4 | ✓ Closing fragment |
| 07-12 21:00 | 40m | - / - | IK0QDM | -13 / - | 20 | Partial capture |
| 07-12 20:59 | 40m | - / - | DL1BJL | -11 / - | 2 | Partial capture |
| 07-12 20:59 | 40m | - / - | I1YTO | -22 / - | 2 | Partial capture |
| 07-12 20:59 | 40m | - / -10 | OK1XD | +3 / - | 18 | ✓ Closing fragment |
| 07-12 20:59 | 40m | - / - | SP2MEF | -3 / - | 2 | Partial capture |
| 07-12 20:58 | 40m | - / - | SP2JLR | +2 / - | 4 | Partial capture |
| 07-12 20:57 | 40m | - / -9 | UA3AGW | -6 / - | 17 | ✓ Closing fragment |
| 07-12 20:56 | 40m | - / - | SP4TKA | -12 / - | 4 | Partial capture |
| 07-12 20:54 | 40m | - / -12 | EI/G0BNR | -14 / - | 7 | ✓ Closing fragment |
| 07-12 20:54 | 40m | - / - | IU0VYT | -4 / - | 14 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 063045 -20 1108 Z81D RN7T LN05
UTC dB Audio Message 213145 +5 355 Z81D HB9EFK JN46 213215 -9 2082 Z81D IQ4JO JN63 213215 -16 967 Z81D G4RCV IO92 213245 -14 1933 Z81D IZ3ODB JN65 213245 -15 1911 Z81D IU4COO JN63 213245 -6 2082 Z81D IQ4JO JN63 213315 -12 1911 Z81D IU4COO JN63 213315 -9 2082 Z81D IQ4JO JN63 213315 -5 649 Z81D E72DX JN84 213345 -10 1911 Z81D IU4COO JN63 213345 -8 648 Z81D E72DX JN84 213415 -6 1934 Z81D IZ3ODB JN65 (x4)
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