JA0RCK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JA0RCK, decoded by SO8OO in southeastern Poland. 183 related FT8 messages, 3 CQ messages, observed on 20m, 10m, across 34 UTC dates. Heard between 2026-05-22 and 2026-08-20.
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 JA0RCK worked most often, as logged from our receiver:
Activity Heatmap
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 | JA0RCK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-20 20:12 | 20m | - / -10 | 9K2GR | +2 / - | 2 | ✓ Closing fragment |
| 08-16 20:48 | 20m | - / -9 | DL1JSO | -13 / - | 2 | ✓ Closing fragment |
| 08-16 20:37 | 20m | - / -12 | EA3EDU | 0 / - | 2 | ✓ Closing fragment |
| 08-12 20:35 | 20m | - / - | ON7NQ | -1 / - | 7 | Partial capture |
| 08-06 21:09 | 20m | - / - | M7JVT | -17 / - | 2 | ✓ Closing fragment |
| 08-06 21:05 | 20m | - / - | F5MJN | -6 / - | 2 | Partial capture |
| 08-03 10:42 | 20m | - / -16 | UT5ZC | -19 / - | 2 | ✓ Closing fragment |
| 08-01 21:14 | 20m | - / -19 | LA7EIA | +7 / - | 2 | Partial capture |
| 08-01 21:01 | 20m | - / - | EA5AE | +2 / - | 3 | Partial capture |
| 08-01 20:58 | 20m | - / - | M0LAD | 0 / - | 3 | Partial capture |
| 08-01 20:57 | 20m | - / +7 | IS0AEL | -2 / - | 2 | ✓ Closing fragment |
| 07-29 20:47 | 20m | - / -8 | IU2CAT | -8 / - | 5 | ✓ Closing fragment |
| 07-29 20:44 | 20m | - / -12 | CT1FIU | -19 / - | 2 | ✓ Closing fragment |
| 07-28 20:35 | 20m | - / -16 | M0KZC/P | -7 / - | 2 | ✓ Closing fragment |
| 07-28 20:23 | 20m | - / -11 | GM3AND | -8 / - | 2 | ✓ Closing fragment |
| 07-27 20:32 | 20m | - / -16 | I0KNQ | -3 / - | 2 | Partial capture |
| 07-27 20:23 | 20m | - / -11 | 9A2L | -8 / - | 2 | ✓ Closing fragment |
| 07-25 21:39 | 20m | - / -13 | ON3PVC | -4 / - | 2 | ✓ Closing fragment |
| 07-25 21:22 | 20m | - / -16 | EB3JT | +1 / - | 3 | ✓ Closing fragment |
| 07-24 20:20 | 20m | - / -12 | GM3PXK | +1 / - | 6 | ✓ Closing fragment |
| 07-24 20:09 | 20m | - / -25 | M9MAS | +6 / - | 2 | ✓ Closing fragment |
| 07-22 21:54 | 20m | - / -17 | F5IDJ | +4 / - | 2 | Partial capture |
| 07-21 21:08 | 20m | - / - | IZ0MIT | -2 / - | 3 | Partial capture |
| 07-21 20:53 | 20m | - / -17 | ON4AEM | +10 / - | 3 | ✓ Closing fragment |
| 07-20 20:37 | 20m | - / -10 | EA3HRE | -4 / - | 3 | ✓ Closing fragment |
| 07-20 20:12 | 20m | - / -19 | IU2OQT | -9 / - | 8 | ✓ Closing fragment |
| 07-07 20:56 | 20m | - / -23 | DL5BTE | -1 / - | 3 | ✓ Closing fragment |
| 07-07 20:53 | 20m | - / -16 | CT1EEX | -4 / - | 2 | ✓ Closing fragment |
| 07-07 20:27 | 20m | - / -12 | M7YBX | -14 / - | 2 | Partial capture |
| 07-07 20:22 | 20m | - / -4 | R5AV | -4 / - | 2 | ✓ Closing fragment |
| 07-06 20:51 | 20m | - / -18 | IK1RQX | +4 / - | 4 | ✓ Closing fragment |
| 07-06 20:31 | 20m | - / -16 | IK2LRF | -10 / - | 2 | ✓ Closing fragment |
| 06-22 20:53 | 20m | - / - | M0KSD | -5 / - | 7 | Partial capture |
| 06-21 19:41 | 20m | - / - | EA1CQ | -1 / - | 4 | Partial capture |
| 06-17 20:30 | 20m | -5 / - | TA4WH | - / - | 6 | Partial capture |
| 06-17 19:30 | 20m | -3 / - | RZ4FWA | +5 / - | 2 | ✓ Closing observed |
| 06-17 19:23 | 20m | -5 / -7 | TJ1GD/P | 0 / - | 5 | ✓ Closing observed |
| 06-15 19:43 | 20m | - / - | HB9VAA | -16 / - | 2 | Partial capture |
| 06-14 20:04 | 20m | +3 / - | DF1OLS | +5 / -14 | 6 | Partial capture |
| 06-14 20:02 | 20m | +2 / -10 | G0BKC | +2 / -14 | 4 | ✓ Full exchange observed |
| 06-14 19:59 | 20m | 0 / - | SP3KAU | - / -10 | 2 | ✓ Closing fragment |
| 06-14 19:57 | 20m | +1 / -6 | IQ6PE | -6 / - | 2 | Partial capture |
| 06-14 19:56 | 20m | -2 / - | TA1SW | -23 / -9 | 4 | ✓ Closing observed |
| 06-14 19:55 | 20m | -2 / - | 9A5AZK | - / - | 2 | Partial capture |
| 06-14 19:53 | 20m | 0 / - | 9K2KU | - / -14 | 3 | ✓ Closing fragment |
| 06-14 19:52 | 20m | -1 / - | OZ1IKU | - / -23 | 3 | ✓ Closing fragment |
| 06-14 19:49 | 20m | 0 / - | EW4IDP | - / - | 2 | Partial capture |
| 06-14 19:48 | 20m | 0 / - | MM3WYM | - / - | 2 | Partial capture |
| 06-14 19:44 | 20m | 0 / - | 9K2MP | - / - | 2 | Partial capture |
| 06-11 21:00 | 20m | -7 / - | IQ9GD | - / -7 | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 203500 +0 3022 JA0RCK ON7NQ JO21 (x7) 202630 -11 2025 JA0RCK I1WUA RR73 203715 -2 2271 JA0RCK EA3EDU R-12 (x2) 204800 -12 1460 JA0RCK DL1JSO -09 (x2) 201200 +2 2131 JA0RCK 9K2GR -10 (x2) 214645 -24 1373 JA0RCK HB9TOC RR73
UTC dB Audio Message 113100 -16 819 JA0RCK 9X5KM -02 113130 -13 819 JA0RCK RR73; JH2QMT <...> +04 110315 -14 1145 JA0RCK A60PC/5 -04
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.