UI4I — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UI4I, decoded by SO8OO in southeastern Poland. 493 related FT8 messages, 126 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 50 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 UI4I worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by UI4I
Approximate centre of LO43, decoded 2026-08-20 18:35 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 | UI4I S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-20 18:36 | 20m | 0 / - | M7EOI | - / -11 | 2 | ✓ Closing fragment |
| 08-20 18:07 | 80m | -6 / - | R2PX | - / - | 2 | Partial capture |
| 08-20 18:03 | 80m | -5 / 0 | R2PT | 0 / -2 | 6 | ✓ Full exchange observed |
| 08-20 18:01 | 80m | -3 / -12 | DO1ID | +6 / -17 | 5 | ✓ Full exchange observed |
| 08-16 13:39 | 20m | -4 / - | VE7GKH | - / -20 | 5 | Partial capture |
| 08-15 19:45 | 160m | -6 / - | OI5AY | -15 / -19 | 4 | ✓ Closing observed |
| 08-15 19:39 | 160m | -8 / -16 | DM5KM | -6 / -17 | 6 | ✓ Full exchange observed |
| 08-15 19:36 | 160m | -7 / - | R50RKZ | +3 / +3 | 4 | ✓ Closing observed |
| 08-15 19:34 | 160m | -8 / -9 | PA3FR | -6 / -18 | 5 | ✓ Full exchange observed |
| 08-15 18:57 | 160m | -4 / - | R3DFS | - / -15 | 4 | ✓ Closing fragment |
| 08-15 18:54 | 160m | -4 / -1 | OE3PKU | +3 / -16 | 6 | ✓ Full exchange observed |
| 08-15 18:38 | 160m | -6 / - | RW3BK | - / - | 4 | Partial capture |
| 08-15 18:37 | 160m | - / - | OE3PKU | 0 / - | 2 | Partial capture |
| 08-15 18:35 | 160m | -4 / -3 | OM7CF | +11 / -12 | 5 | ✓ Full exchange observed |
| 08-15 17:56 | 80m | -4 / -11 | RA9FDR | -21 / -12 | 4 | ✓ Full exchange observed |
| 08-15 17:55 | 80m | - / - | R50RKZ | -14 / - | 2 | ✓ Closing fragment |
| 08-15 17:48 | 80m | +4 / -1 | R7CD | +11 / - | 3 | ✓ Closing observed |
| 08-15 17:46 | 80m | -7 / - | RA9FDR | - / - | 3 | Partial capture |
| 08-15 17:43 | 80m | -10 / -6 | RU3XU | +2 / -2 | 5 | ✓ Full exchange observed |
| 08-15 17:35 | 80m | -5 / - | UA4QK | - / - | 3 | Partial capture |
| 08-15 17:32 | 80m | -7 / -10 | YO2BTW | +1 / -17 | 6 | ✓ Full exchange observed |
| 08-15 17:23 | 80m | -4 / - | UA9ZZ | - / -12 | 2 | Partial capture |
| 08-15 17:14 | 80m | -9 / +6 | RO3ZR | -3 / 0 | 7 | ✓ Full exchange observed |
| 08-15 16:55 | 80m | -15 / -1 | R2GFD | -11 / +2 | 5 | ✓ Full exchange observed |
| 08-15 07:34 | 20m | -20 / - | MI9PBM | - / - | 2 | Partial capture |
| 08-13 16:48 | 80m | -12 / - | <...> | - / -21 | 2 | Partial capture |
| 08-13 16:43 | 80m | -17 / 0 | RA3VX | -8 / - | 3 | ✓ Closing observed |
| 08-13 16:41 | 80m | -14 / - | UA3MRS | - / -16 | 3 | ✓ Closing fragment |
| 08-11 17:03 | 10m | -20 / - | IZ8PPJ | - / -23 | 4 | ✓ Closing fragment |
| 08-10 06:07 | 10m | -18 / +4 | R3AT | -11 / -15 | 3 | Partial capture |
| 07-30 18:32 | 40m | - / -2 | RA3ZOM | -8 / - | 3 | ✓ Closing fragment |
| 07-30 18:30 | 80m | -4 / - | RN6AK | - / -7 | 2 | Partial capture |
| 07-30 18:28 | 80m | -6 / +5 | R70OBN | -1 / -1 | 5 | ✓ Full exchange observed |
| 07-30 18:26 | 80m | -5 / 0 | RZ3ZY | +1 / -10 | 5 | ✓ Full exchange observed |
| 07-30 18:25 | 80m | -6 / -5 | UB6OAJ | +4 / -8 | 4 | ✓ Full exchange observed |
| 07-30 18:24 | 80m | -3 / -1 | RC6OD | +10 / -7 | 5 | ✓ Full exchange observed |
| 07-24 17:32 | 80m | -18 / 0 | R6OG | +8 / - | 4 | ✓ Closing observed |
| 07-24 17:31 | 80m | -17 / - | RX3DRC | -24 / -7 | 3 | ✓ Closing observed |
| 07-24 17:29 | 80m | -18 / - | RG2A | -4 / - | 3 | ✓ Closing observed |
| 07-18 08:19 | 10m | -21 / -4 | IU8ADS | -7 / -9 | 6 | ✓ Full exchange observed |
| 07-18 08:16 | 10m | -21 / - | DF4TC | - / -2 | 2 | ✓ Closing fragment |
| 07-18 03:53 | 40m | - / -1 | R7FT | -20 / - | 3 | ✓ Closing fragment |
| 07-17 19:06 | 80m | -9 / 0 | UA1OIZ | -9 / +1 | 7 | ✓ Full exchange observed |
| 07-17 19:03 | 80m | -15 / - | 9A60CBM | - / - | 3 | Partial capture |
| 07-17 18:59 | 80m | -9 / -1 | UB0SMX/P | -1 / - | 3 | ✓ Closing observed |
| 07-17 18:58 | 80m | -8 / -6 | SP9JMZ | -2 / -18 | 8 | ✓ Full exchange observed |
| 07-17 18:56 | 80m | -10 / 0 | RM5F | +1 / +2 | 5 | ✓ Full exchange observed |
| 07-17 18:53 | 80m | -10 / -15 | R6OF | -8 / -5 | 6 | ✓ Full exchange observed |
| 07-16 18:15 | 80m | -6 / - | OM1II | +9 / -15 | 3 | ✓ Closing observed |
| 07-13 17:43 | 80m | -12 / - | R0AH | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 153700 +2 840 PD2MAC UI4I RR73 153930 -4 841 DK9NP UI4I R-16 153930 +3 1356 G3EFG UI4I LO43 191945 +0 884 CT7AUT UI4I LO43 073445 -22 1383 MI9PBM UI4I LO43 (x2) 133900 -1 889 VE7GKH UI4I LO43 (x5) 183430 +3 1152 CQ UI4I LO43 (x2) 183630 -1 1152 M7EOI UI4I -11 (x2)
UTC dB Audio Message 175745 -3 1239 RA9FDR UI4I RR73 180145 -4 971 DO1ID UI4I LO43 180200 +7 381 UI4I DO1ID -12 180215 -2 971 DO1ID UI4I R-17 180230 +6 381 UI4I DO1ID RR73 180245 -2 971 DO1ID UI4I 73 180300 -1 690 UI4I R2PT KO84 (x2) 180345 -4 971 R2PT UI4I -02 180400 +0 690 UI4I R2PT R+00 180415 -5 971 R2PT UI4I RR73 (x2) 180545 -2 971 CQ UI4I LO43 180700 -11 971 R2PX UI4I LO43 (x2)
UTC dB Audio Message 193615 -8 1234 R50RKZ UI4I LO43 (x2) 193700 +3 2268 UI4I R50RKZ RR73 193715 -5 1234 R50RKZ UI4I 73 193930 -6 1235 DM5KM UI4I LO43 (x2) 194015 -5 1632 UI4I DM5KM -16 194030 -10 1235 DM5KM UI4I R-17 194045 -8 1632 UI4I DM5KM RR73 194100 -9 1235 DM5KM UI4I 73 194545 -7 1234 OI5AY UI4I LO43 (x2) 194630 -15 1687 UI4I OI5AY RR73 194645 -4 1234 OI5AY UI4I 73 172800 -23 1251 CQ UI4I LO43 a1
UTC dB Audio Message 082200 -20 1781 IU8ADS UI4I R-03 082215 -9 1781 UI4I IU8ADS RR73 082430 -22 1782 DN9OPA UI4I RR73 082630 -20 1781 DL9NO UI4I -18 065115 -16 1053 OH1NHX UI4I LO43 060730 -19 1693 R3AT UI4I LO43 060815 -11 2644 UI4I R3AT +04 060830 -17 1693 R3AT UI4I R-15 063600 -24 1692 OH0ERF UI4I R-09 063830 -23 1692 UA4FKT UI4I RR73 170315 -20 1694 IZ8PPJ UI4I LO43 (x4) 170845 -19 1693 SP6FME UI4I -08
UTC dB Audio Message 191000 -20 1630 SQ8LE UI4I R-12 (x2) 191145 -18 1630 EP2AES UI4I LO43 (x6) 035315 -19 1751 UI4I R7FT -01 (x3) 035545 -18 1964 UI4I SV1TPO R-17 183245 -7 1927 UI4I RA3ZOM KO90 (x3)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.