YC1SDM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YC1SDM, decoded by SO8OO in southeastern Poland. 194 related FT8 messages, 11 CQ messages, observed on 40m, 20m, 10m, across 5 UTC dates. Heard between 2026-05-01 and 2026-07-18.
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
Frequent QSO partners observed at SO8OO
Stations YC1SDM 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 | YC1SDM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-18 20:54 | 40m | - / -17 | SP2FWC | -13 / - | 3 | ✓ Closing fragment |
| 07-18 20:53 | 40m | - / -15 | LB7ZG | -5 / - | 3 | Partial capture |
| 07-18 20:48 | 40m | - / - | LZ3CB | -8 / - | 4 | Partial capture |
| 07-18 20:32 | 40m | - / - | LB7ZG | -12 / - | 2 | Partial capture |
| 07-18 20:30 | 40m | - / -14 | DK7ZT | -18 / - | 2 | ✓ Closing fragment |
| 07-18 20:30 | 40m | - / -15 | PA1ADR | -14 / - | 6 | ✓ Closing fragment |
| 07-18 20:30 | 40m | - / -16 | SP2FWC | -5 / - | 4 | Partial capture |
| 07-18 20:16 | 20m | - / -22 | IZ3VCN | -14 / - | 2 | Partial capture |
| 07-18 20:12 | 20m | - / -20 | IZ3VCN | -20 / - | 2 | Partial capture |
| 07-18 20:04 | 20m | - / -20 | DH1FA | -16 / - | 2 | Partial capture |
| 07-18 19:58 | 20m | - / -14 | DH1FA | -16 / - | 2 | Partial capture |
| 07-18 19:52 | 20m | - / - | DD1OO | -4 / - | 2 | Partial capture |
| 07-18 19:44 | 20m | - / -10 | M0UTD | 0 / - | 2 | ✓ Closing fragment |
| 07-18 19:32 | 20m | - / -15 | DK1MAX | +7 / - | 3 | ✓ Closing fragment |
| 07-18 19:32 | 20m | - / - | EA2DP | -18 / - | 4 | Partial capture |
| 07-18 19:26 | 20m | - / -17 | DL5CK | -4 / - | 5 | ✓ Closing fragment |
| 07-18 19:24 | 20m | - / - | SP6DA | -16 / - | 2 | Partial capture |
| 07-18 19:23 | 20m | - / - | F5JQF | -11 / - | 2 | Partial capture |
| 07-18 19:18 | 20m | - / - | OK2UQF | +11 / - | 4 | Partial capture |
| 07-18 19:17 | 20m | - / - | SP6JAF | -7 / - | 3 | Partial capture |
| 07-18 19:17 | 20m | - / -15 | <...> | -14 / - | 3 | Partial capture |
| 07-18 19:11 | 20m | - / - | SP6JAF | -12 / - | 3 | Partial capture |
| 07-18 19:09 | 20m | - / - | S52TW | +6 / - | 2 | ✓ Closing fragment |
| 07-18 19:09 | 20m | - / - | OE9GWV | -10 / - | 4 | Partial capture |
| 07-18 19:07 | 20m | - / -12 | OK7PK | -5 / - | 10 | ✓ Closing fragment |
| 07-18 19:06 | 20m | - / -11 | HB9ZCF | -14 / - | 4 | ✓ Closing fragment |
| 07-18 19:06 | 20m | - / -12 | PD0BOR | -11 / - | 5 | Partial capture |
| 07-18 19:04 | 20m | - / -10 | <...> | -3 / - | 2 | Partial capture |
| 07-18 19:04 | 20m | - / -13 | F5RRS | -4 / - | 2 | Partial capture |
| 07-18 19:02 | 20m | - / -5 | PD5DJ | -7 / - | 3 | ✓ Closing fragment |
| 07-18 19:01 | 20m | - / -9 | YU7NW | -13 / - | 2 | ✓ Closing fragment |
| 07-18 19:01 | 20m | - / - | EA2DP | -16 / - | 4 | Partial capture |
| 07-18 18:58 | 20m | - / - | DD6WF | +2 / - | 2 | Partial capture |
| 07-18 18:55 | 20m | - / - | RA3ZH | -2 / - | 7 | Partial capture |
| 07-18 18:53 | 20m | - / - | DC1ULI | -23 / - | 2 | Partial capture |
| 07-18 18:53 | 20m | - / - | DL1R | +4 / - | 8 | Partial capture |
| 06-10 07:20 | 10m | - / - | IK4LZH | -5 / - | 3 | Partial capture |
| 06-09 13:57 | 10m | - / -5 | HB9CCM | -4 / - | 3 | ✓ Closing fragment |
| 06-09 13:57 | 10m | - / -11 | HB9MGS | -6 / - | 3 | ✓ Closing fragment |
| 06-09 13:56 | 10m | - / -4 | HB9HST | -10 / - | 2 | ✓ Closing fragment |
| 06-09 13:43 | 10m | -17 / -12 | F8VNU | -18 / +3 | 3 | Partial capture |
| 06-09 13:43 | 10m | -14 / -22 | IZ3XEF | +4 / - | 4 | ✓ Closing observed |
| 06-09 13:39 | 10m | - / -22 | IZ3XEF | +5 / - | 2 | Partial capture |
| 06-09 13:22 | 10m | -16 / - | YL2CI | - / +2 | 2 | ✓ Closing fragment |
| 06-09 13:16 | 10m | -9 / - | OK1CI | - / -10 | 2 | ✓ Closing fragment |
| 06-09 13:15 | 10m | -10 / -16 | UA6EED | -10 / -5 | 7 | ✓ Full exchange observed |
| 06-09 13:11 | 10m | -10 / - | 9A4ZM | - / -10 | 4 | Partial capture |
| 06-09 13:10 | 10m | -10 / - | RW3SK | -12 / - | 3 | ✓ Closing observed |
| 06-09 13:06 | 10m | -12 / - | YL3ATH | - / -24 | 3 | Partial capture |
| 06-09 13:01 | 10m | -13 / - | LZ1LZ | - / -14 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 203300 -12 2011 YC1SDM PA1ADR R-15 203330 -13 2544 YC1SDM LB7ZG JP50 203330 -14 2011 YC1SDM PA1ADR 73 204800 -7 1675 YC1SDM LZ3CB KN32 (x4) 205300 +0 2930 YC1SDM LB7ZG JP50 (x2) 205330 -20 1727 YC1SDM PC2J JO22 205430 -13 1263 YC1SDM SP2FWC JO94 205430 -15 1727 YC1SDM LB7ZG R-15 205530 -13 1263 YC1SDM SP2FWC R-17 (x2) 205700 -18 1727 YC1SDM YL3MM KO27
UTC dB Audio Message 194600 -8 2552 YC1SDM PE1LYU -13 194600 -13 1691 YC1SDM IK5AUL R-20 195100 -7 2817 YC1SDM PD0IFI JO32 195200 -4 1751 YC1SDM DD1OO JN49 (x2) 195230 -10 1806 YC1SDM DH1FA -15 (x6) 201230 -17 1751 YC1SDM IZ3VCN JN66 (x4)
UTC dB Audio Message 134415 +1 2390 YC1SDM IZ3XEF R-22 134430 -14 1382 IZ3XEF YC1SDM RR73 134445 +3 2391 YC1SDM IZ3XEF 73 135615 -13 1383 YC1SDM HB9HST R-04 (x2) 135715 -16 1390 YC1SDM HB9MGS JN37 135715 -2 1340 YC1SDM HB9CCM JN47 (x3) 135845 -3 984 YC1SDM HB9MGS R-11 (x2) 140230 -22 1382 F4MXT YC1SDM -19 072045 -3 491 YC1SDM IK4LZH JN54 (x3)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.