US2UM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving US2UM, decoded by SO8OO in southeastern Poland. 596 related FT8 messages, 46 CQ messages, observed on 80m, 40m, 20m, 10m, across 48 UTC dates. Heard between 2026-05-26 and 2026-08-21.
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 US2UM worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by US2UM
Approximate centre of KO50, decoded 2026-08-16 17:10 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 | US2UM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-21 08:57 | 10m | - / -12 | IK4LZH | +8 / - | 3 | ✓ Closing fragment |
| 08-21 08:42 | 10m | - / - | DO1ANB | -16 / - | 13 | Partial capture |
| 08-21 08:42 | 10m | - / - | DG2SAT | -6 / - | 3 | ✓ Closing fragment |
| 08-21 08:36 | 10m | - / -14 | LZ3AN | -22 / - | 2 | ✓ Closing fragment |
| 08-21 08:34 | 10m | - / -9 | TA6B | -12 / - | 2 | ✓ Closing fragment |
| 08-20 06:03 | 20m | - / -23 | F6JON/QRP | 0 / - | 3 | Partial capture |
| 08-20 05:53 | 20m | - / -13 | UN0GY | -2 / - | 4 | Partial capture |
| 08-19 12:44 | 10m | - / -20 | IW8XLD | 0 / - | 4 | ✓ Closing fragment |
| 08-17 09:15 | 20m | -20 / -4 | OH5C/P | -10 / -19 | 2 | Partial capture |
| 08-17 09:13 | 20m | - / -10 | OK1CT | -2 / - | 2 | ✓ Closing fragment |
| 08-16 17:08 | 40m | -8 / -5 | DL7ANC/LH | -11 / -3 | 3 | Partial capture |
| 08-16 17:05 | 40m | -9 / - | <...> | - / - | 3 | Partial capture |
| 08-16 17:04 | 40m | -5 / - | SP4WSL | - / +9 | 2 | Partial capture |
| 08-16 17:02 | 40m | -6 / - | UW5ENK | - / -12 | 3 | ✓ Closing fragment |
| 08-16 16:58 | 40m | -5 / -2 | DA0OIE | -11 / -6 | 5 | ✓ Full exchange observed |
| 08-16 16:56 | 40m | -8 / -15 | DA0LH | -15 / -13 | 5 | ✓ Full exchange observed |
| 08-16 16:53 | 40m | -8 / - | <...> | - / -13 | 5 | Partial capture |
| 08-16 16:50 | 40m | -17 / +7 | SP3GTP | -16 / +4 | 6 | ✓ Full exchange observed |
| 08-16 15:51 | 40m | -18 / - | BG7BVI | - / - | 5 | Partial capture |
| 08-16 15:47 | 40m | -18 / - | S55OO | - / - | 2 | Partial capture |
| 08-16 15:46 | 40m | -19 / - | SP9DB | - / - | 2 | Partial capture |
| 08-16 15:44 | 40m | -12 / - | EW8DG | - / -5 | 3 | Partial capture |
| 08-16 15:42 | 40m | -12 / - | BG7BVI | - / - | 3 | Partial capture |
| 08-16 15:40 | 40m | -10 / - | S55OO | - / - | 3 | Partial capture |
| 08-16 15:38 | 40m | -14 / - | <...> | - / - | 3 | Partial capture |
| 08-16 15:23 | 40m | -7 / - | <...> | - / - | 4 | Partial capture |
| 08-16 15:17 | 40m | -7 / - | <...> | - / -6 | 4 | Partial capture |
| 08-16 15:14 | 40m | 0 / -4 | HA3GO | -10 / +6 | 5 | ✓ Full exchange observed |
| 08-16 15:12 | 40m | -1 / -15 | DF0GDX | 0 / -5 | 4 | ✓ Full exchange observed |
| 08-16 15:05 | 40m | -1 / +4 | OK5AG/P | -18 / -4 | 6 | ✓ Full exchange observed |
| 08-16 14:58 | 40m | -2 / - | SP9CXN | - / +1 | 3 | ✓ Closing fragment |
| 08-16 14:56 | 40m | -2 / - | <...> | - / +4 | 3 | Partial capture |
| 08-16 12:06 | 10m | - / -12 | M0BEW | -5 / - | 2 | ✓ Closing fragment |
| 08-16 12:05 | 10m | - / - | DK7UY | -8 / - | 2 | Partial capture |
| 08-16 11:54 | 10m | - / -18 | SV2FNT | -14 / - | 2 | ✓ Closing fragment |
| 08-16 11:41 | 40m | -13 / - | S55OO | - / - | 2 | Partial capture |
| 08-15 19:11 | 40m | -6 / -5 | DA0YFD | -6 / - | 5 | Partial capture |
| 08-15 19:10 | 40m | -3 / -14 | UT2PC | +3 / +5 | 3 | ✓ Full exchange observed |
| 08-15 19:05 | 40m | -6 / +9 | IV3BCD/SP9 | -6 / -3 | 7 | Partial capture |
| 08-14 04:23 | 80m | -19 / - | SM6VAG | - / - | 3 | Partial capture |
| 08-14 03:48 | 80m | -17 / - | YO3OBB | - / - | 4 | Partial capture |
| 08-14 02:26 | 80m | - / - | DO8JB | +6 / - | 12 | Partial capture |
| 08-14 02:25 | 80m | -13 / -15 | SP9UPH | +14 / +3 | 5 | ✓ Full exchange observed |
| 08-14 02:22 | 80m | -20 / -15 | OH7MEY | -2 / -8 | 5 | ✓ Full exchange observed |
| 08-14 02:10 | 80m | -24 / - | OE8RPK | - / - | 3 | Partial capture |
| 08-14 02:08 | 80m | -18 / - | 9A5E | - / - | 3 | Partial capture |
| 08-14 02:05 | 80m | -18 / - | LZ01MIKU | - / - | 5 | Partial capture |
| 08-14 02:03 | 80m | -20 / - | 9A5E | - / - | 2 | Partial capture |
| 08-13 19:14 | 80m | - / -17 | OL900CO | +6 / - | 2 | Partial capture |
| 08-13 19:06 | 80m | -14 / -11 | SO1CJ | +6 / -9 | 6 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 084345 -15 1775 US2UM DO1ANB JO31 (x12) 085715 +8 489 US2UM IK4LZH JN54 (x3)
UTC dB Audio Message 120700 +1 1126 US2UM F1DJY -10 (x2) 063345 -7 1186 US2UM SV1FJR RR73 091300 -2 2320 US2UM OK1CT -10 (x2) 091530 -10 1935 US2UM OH5C/P -04 091545 -20 1929 OH5C/P US2UM R-19 091600 -8 1934 US2UM RR73; DB2LP <...> -06 055345 -4 2735 US2UM UN0GY -13 (x4) 060345 +1 1703 US2UM F6JON/QRP -23 (x3)
UTC dB Audio Message 170045 -5 869 DA0OIE US2UM R-06 (x2) 170145 -6 1028 DF1WR US2UM -06 170215 -5 974 UW5ENK US2UM KO50 (x3) 170415 -6 1615 SP4WSL US2UM +09 (x2) 170515 -7 1292 <...> US2UM KO50 (x3) 170815 -10 942 DL7ANC/LH US2UM KO50 170830 -11 943 US2UM DL7ANC/LH -05 170845 -5 942 DL7ANC/LH US2UM R-03 171015 -11 1470 <...> US2UM KO50
UTC dB Audio Message 022845 +6 426 US2UM DO8JB JO32 (x8) 034830 -19 1447 YO3OBB US2UM KO50 (x4) 042330 -19 1492 SM6VAG US2UM KO50 (x3)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.