I4USC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving I4USC, decoded by SO8OO in southeastern Poland. 274 related FT8 messages, 122 CQ messages, observed on 80m, 40m, 20m, 10m, across 27 UTC dates. Heard between 2026-04-25 and 2026-07-14.
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 I4USC worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by I4USC
Approximate centre of JN54, decoded 2026-07-07 05:34 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 | I4USC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-07 05:35 | 40m | -10 / - | KA1MXL | - / -8 | 6 | Partial capture |
| 07-07 05:32 | 40m | -20 / - | OA4ENG | - / - | 2 | ✓ Closing fragment |
| 07-07 05:18 | 40m | -22 / - | VP2MAA | - / -18 | 2 | ✓ Closing fragment |
| 06-16 06:08 | 10m | -13 / - | EB2EMZ | - / -10 | 2 | ✓ Closing fragment |
| 06-14 13:36 | 10m | - / +2 | PD9FLX | +2 / - | 4 | ✓ Closing fragment |
| 06-14 12:57 | 10m | - / - | PF1B | -10 / - | 2 | Partial capture |
| 06-08 11:58 | 10m | +10 / - | E29CXH | - / -10 | 9 | ✓ Closing fragment |
| 06-06 20:40 | 10m | -12 / - | EA4AA | - / - | 2 | ✓ Closing fragment |
| 06-06 20:34 | 10m | -8 / - | CA2VJM | - / -14 | 2 | ✓ Closing fragment |
| 06-06 20:33 | 10m | -12 / - | CA2HFW | - / -15 | 2 | ✓ Closing fragment |
| 06-06 20:31 | 10m | -4 / - | <...> | - / - | 3 | Partial capture |
| 06-06 20:27 | 10m | +6 / - | TI2JCY | - / -21 | 3 | ✓ Closing fragment |
| 06-06 20:24 | 10m | -3 / - | SP2CRY | - / +1 | 2 | ✓ Closing fragment |
| 06-06 20:20 | 10m | -2 / - | PT9BM | - / -12 | 4 | ✓ Closing fragment |
| 06-04 06:47 | 10m | - / - | UT0CK | 0 / - | 2 | ✓ Closing fragment |
| 06-02 22:06 | 80m | - / - | IZ0MIT | -1 / - | 3 | Partial capture |
| 06-02 21:56 | 80m | +2 / - | EA7AK | -20 / +1 | 3 | ✓ Closing observed |
| 06-02 21:55 | 80m | +2 / 0 | DO9ST | -4 / -11 | 9 | ✓ Full exchange observed |
| 06-02 21:50 | 80m | +3 / +1 | OM0MR | +2 / -5 | 5 | ✓ Full exchange observed |
| 06-02 21:46 | 80m | +2 / -8 | ES4BW | +2 / -8 | 5 | ✓ Full exchange observed |
| 06-02 21:42 | 80m | +2 / - | ON6CQ | - / -6 | 4 | ✓ Closing fragment |
| 06-02 21:39 | 80m | 0 / - | BI8FRF | - / - | 2 | ✓ Closing fragment |
| 06-02 21:35 | 40m | +8 / - | BA7NQ | - / 0 | 3 | ✓ Closing fragment |
| 06-02 21:31 | 40m | +4 / - | CU6AB | - / -10 | 4 | ✓ Closing fragment |
| 06-02 21:27 | 40m | +3 / - | UN8DSW | - / -6 | 3 | ✓ Closing fragment |
| 06-02 21:20 | 40m | +4 / -2 | OE9GWV | -2 / -2 | 5 | ✓ Full exchange observed |
| 06-02 21:15 | 40m | +4 / -10 | SP7TF | -7 / -3 | 3 | ✓ Full exchange observed |
| 05-28 08:12 | 10m | - / -9 | VU2RMS | -16 / - | 2 | ✓ Closing fragment |
| 05-27 05:22 | 20m | - / - | RA9CKA | -14 / - | 2 | Partial capture |
| 05-27 05:16 | 20m | -12 / -6 | RW4HB | -4 / -2 | 5 | Partial capture |
| 05-27 05:15 | 20m | -18 / - | R3BAV | - / -4 | 2 | ✓ Closing fragment |
| 05-27 05:14 | 20m | -16 / -2 | SP4MPH | +13 / - | 3 | ✓ Full exchange observed |
| 05-27 05:10 | 20m | -11 / - | JT1CO | - / -16 | 5 | ✓ Closing fragment |
| 05-26 21:19 | 80m | -4 / -6 | CT3HU | -16 / -8 | 3 | ✓ Full exchange observed |
| 05-26 21:19 | 80m | +6 / -1 | F1PBZ | +10 / - | 11 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 133800 +2 2488 I4USC PD9FLX JO22 (x3) 060815 -20 1471 CQ I4USC JN54 060845 -11 1472 EB2EMZ I4USC -10 (x2) 060945 -17 1472 CQ I4USC JN54 061045 -18 1472 UX7QV I4USC RR73 061315 -20 1471 CQ I4USC JN54 (x2) 061430 +6 1470 I4USC IU8ADS -19 194445 -17 1569 CQ I4USC JN54 194500 -14 913 I4USC LU7DUE GF05 122245 -24 1969 I4USC F4LNM RR73 074600 -9 2739 I4USC F1PBZ -13
UTC dB Audio Message 213745 -11 276 I4USC ON4MAP JO20 051800 -23 1994 VP2MAA I4USC R-18 (x2) 051930 -18 1994 CQ I4USC JN54 (x2) 052330 -24 1993 R1TAX I4USC RRR 053215 -24 2084 OA4ENG I4USC JN54 (x2) 053415 -17 2084 CQ I4USC JN54 053545 -5 728 KA1MXL I4USC R-08 (x6)
UTC dB Audio Message 051345 -14 1615 CQ I4USC JN54 051400 +16 2376 I4USC SP4MPH -02 051415 -16 1614 SP4MPH I4USC R+18 051430 +10 2376 I4USC SP4MPH RR73 051545 -15 1614 R3BAV I4USC -04 (x2) 051645 -12 1614 RW4HB I4USC -02 (x4) 051830 -4 765 I4USC RW4HB R-06 051945 -9 1614 CQ I4USC JN54 052200 -15 2740 I4USC RA9CKA MO06 (x2) 080900 -11 2081 I4USC DK4NB JO43
UTC dB Audio Message 215745 -6 1197 I4USC DO9ST JO30 215830 +2 1589 DO9ST I4USC -11 215845 +0 1197 I4USC DO9ST R+00 215900 +2 1589 DO9ST I4USC RR73 215915 +3 1198 I4USC DO9ST 73 220230 -4 1590 CQ I4USC JN54 (x7) 220645 +3 1088 I4USC IZ0MIT JN61 (x3)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.