RA3ZK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RA3ZK, decoded by SO8OO in southeastern Poland. 98 related FT8 messages, observed on 80m, 40m, 20m, 10m, across 21 UTC dates. Heard between 2026-05-16 and 2026-08-12.
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 RA3ZK worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by RA3ZK
Approximate centre of KO81, decoded 2026-08-12 17:49 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 | RA3ZK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-12 17:47 | 80m | +1 / - | RI0FA | - / -18 | 7 | ✓ Closing fragment |
| 08-12 16:55 | 80m | -1 / - | RI0FA | - / - | 16 | Partial capture |
| 08-12 16:43 | 80m | -6 / - | RI0FA | - / - | 15 | Partial capture |
| 07-23 18:39 | 20m | -12 / - | BG7JPT | - / -10 | 4 | ✓ Closing fragment |
| 07-23 18:37 | 20m | -6 / - | BG0HP | - / - | 2 | ✓ Closing fragment |
| 07-23 18:34 | 20m | -10 / - | 9V1DX | - / - | 4 | Partial capture |
| 07-23 18:32 | 20m | -6 / - | JG1KWO | - / -13 | 3 | ✓ Closing fragment |
| 07-23 18:24 | 20m | +4 / - | BG7JPT | - / - | 2 | Partial capture |
| 07-23 18:21 | 20m | +1 / - | JH5AVM | - / -19 | 3 | ✓ Closing fragment |
| 07-23 18:18 | 20m | +4 / - | 2E1HAT | - / - | 2 | Partial capture |
| 07-21 18:45 | 40m | +10 / - | <...> | - / -20 | 4 | Partial capture |
| 07-20 05:40 | 20m | +3 / - | <...> | - / - | 3 | Partial capture |
| 07-20 04:56 | 20m | -4 / - | VE7IRU | - / - | 2 | Partial capture |
| 07-20 04:53 | 20m | -9 / - | ND9M | - / - | 2 | ✓ Closing fragment |
| 07-18 06:04 | 20m | -8 / - | W3BL | - / -15 | 5 | Partial capture |
| 07-16 04:47 | 20m | -2 / - | CE1KR | - / - | 5 | Partial capture |
| 07-15 18:46 | 10m | +5 / - | IS0UWS | - / -19 | 3 | ✓ Closing fragment |
| 07-13 14:54 | 40m | -14 / - | RI1PC | - / -14 | 2 | Partial capture |
| 07-13 02:52 | 40m | +3 / - | CE2EC | - / - | 2 | Partial capture |
| 07-13 02:49 | 40m | +6 / - | CX9AU | - / - | 2 | Partial capture |
| 07-12 10:28 | 20m | -22 / - | <...> | - / - | 3 | Partial capture |
| 07-12 10:12 | 20m | -16 / - | <...> | - / - | 2 | Partial capture |
| 07-12 10:04 | 20m | -4 / - | <...> | - / - | 8 | Partial capture |
| 07-08 04:09 | 20m | -2 / - | ZL4TT | - / - | 2 | Partial capture |
| 07-08 04:07 | 20m | -6 / - | HP2NG | - / - | 3 | Partial capture |
| 07-08 04:05 | 20m | -7 / - | WB4TDH | - / -8 | 2 | ✓ Closing fragment |
| 07-08 04:03 | 20m | -6 / - | HP2NG | - / - | 3 | Partial capture |
| 06-30 19:01 | 80m | - / - | RL7Z | -15 / - | 5 | Partial capture |
| 06-30 19:00 | 80m | - / -5 | RC9WC | -14 / - | 3 | Partial capture |
| 06-30 18:59 | 80m | +7 / - | JH2FXK | - / -15 | 3 | ✓ Closing fragment |
| 06-30 18:59 | 80m | - / - | UA4FKT | +12 / - | 4 | Partial capture |
| 06-30 18:56 | 80m | +7 / -8 | 9A6NCC | +1 / -16 | 6 | ✓ Full exchange observed |
| 06-30 18:52 | 40m | -1 / - | BA7NLL | - / - | 3 | Partial capture |
| 06-30 18:51 | 40m | -4 / - | BY8SCX | - / -12 | 3 | ✓ Closing fragment |
| 06-30 18:48 | 40m | -3 / - | JO4MXO | - / -15 | 4 | ✓ Closing fragment |
| 06-30 18:45 | 40m | -2 / - | BA7NLL | - / - | 2 | Partial capture |
| 06-30 18:45 | 40m | - / - | DL6EL | -4 / - | 3 | Partial capture |
| 06-30 18:41 | 40m | -4 / - | VK3NFI | - / -19 | 7 | ✓ Closing fragment |
| 06-30 18:40 | 40m | +1 / - | YC5NCT | - / - | 3 | Partial capture |
| 06-30 18:37 | 40m | -1 / - | VK4TUX | - / -17 | 5 | ✓ Closing fragment |
| 06-27 02:55 | 40m | -11 / - | K1CXS | - / -17 | 7 | Partial capture |
| 06-27 02:50 | 40m | -18 / - | K9GWH | - / - | 3 | Partial capture |
| 06-27 02:46 | 40m | -1 / - | PY5AL | - / - | 3 | Partial capture |
| 06-27 02:43 | 40m | -2 / - | PW8BR | - / -9 | 2 | ✓ Closing fragment |
| 06-26 19:47 | 10m | 0 / - | PU2ZHJ | - / -21 | 2 | ✓ Closing fragment |
| 06-26 19:45 | 10m | +2 / - | PU2PPD | - / -24 | 3 | ✓ Closing fragment |
| 06-26 19:44 | 10m | +5 / - | CE6YUS | - / -16 | 3 | ✓ Closing fragment |
| 06-26 19:42 | 10m | +3 / - | PU2ZHJ | - / - | 3 | Partial capture |
| 06-26 19:40 | 10m | +6 / - | PU4RPC | - / - | 3 | Partial capture |
| 06-26 19:39 | 10m | +5 / -3 | PR2NX | -7 / -3 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 170245 -5 1221 RI0FA RA3ZK KO81 (x6) 171300 -4 1073 RA3ZK RA6ATZ KN96 174745 -13 220 RI0FA RA3ZK KO81 (x7) 175130 +4 2100 RA3ZK RA6ATZ KN96
UTC dB Audio Message 183230 -5 288 JG1KWO RA3ZK KO81 (x3) 183400 -11 289 9V1DX RA3ZK KO81 (x4) 183600 -5 289 BG5VPO RA3ZK KO81 183700 -6 289 BG0HP RA3ZK KO81 183730 -6 289 4I1DWE RA3ZK KO81 183830 -7 289 BG0HP RA3ZK 73 183900 -4 359 BG7JPT RA3ZK KO81 (x4)
UTC dB Audio Message 185245 -4 233 BA7NLL RA3ZK KO81 (x3) 024945 +5 2828 CX9AU RA3ZK KO81 (x2) 025230 +0 2829 CE2EC RA3ZK KO81 (x2) 025330 +5 2828 T47FCR RA3ZK KO81 145445 -12 285 RI1PC RA3ZK KO81 (x3) 184545 +14 2783 <...> RA3ZK KO81 (x4)
UTC dB Audio Message 194245 +3 1198 PU2ZHJ RA3ZK KO81 (x3) 194415 +3 1740 CE6YUS RA3ZK KO81 (x3) 194545 +3 1399 PU2PPD RA3ZK KO81 (x3) 194745 +1 1550 PU2ZHJ RA3ZK R-21 (x2) 121600 -15 1328 RA3ZK R7DX KN84 184615 +7 2280 IS0UWS RA3ZK KO81 (x3)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.