4U1A — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving 4U1A, decoded by SO8OO in southeastern Poland. 347 related FT8 messages, 12 CQ messages, observed on 80m, 20m, 10m, across 22 UTC dates. Heard between 2026-05-13 and 2026-08-03.
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 4U1A worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by 4U1A
Approximate centre of JN88, decoded 2026-08-18 10:26 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 | 4U1A S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-18 10:26 | 20m | +6 / - | KP2B | - / - | 2 | Partial capture |
| 07-30 09:17 | 10m | - / - | IU5RTR | +4 / - | 2 | Partial capture |
| 07-24 10:30 | 10m | - / +2 | EA3CU | -16 / - | 2 | Partial capture |
| 07-24 10:28 | 10m | - / - | DN9DSP | -2 / - | 8 | Partial capture |
| 07-23 09:42 | 20m | +8 / - | HI8J | - / -12 | 5 | ✓ Closing fragment |
| 07-23 09:39 | 20m | +5 / - | ZA5G | - / - | 2 | ✓ Closing fragment |
| 07-23 09:38 | 20m | +5 / - | C31HS | - / - | 3 | Partial capture |
| 07-10 10:37 | 20m | - / -10 | EA4GA | -4 / - | 6 | Partial capture |
| 07-07 16:01 | 20m | - / -7 | IW5BT | -10 / - | 4 | Partial capture |
| 07-07 15:37 | 20m | - / 0 | DL1DCT | -16 / - | 8 | Partial capture |
| 07-07 15:32 | 20m | - / +3 | ON5AM | -4 / - | 4 | ✓ Closing fragment |
| 07-07 15:18 | 20m | - / - | UT3RO | -15 / - | 2 | Partial capture |
| 07-07 15:17 | 20m | - / - | IU2SMI | -23 / - | 3 | Partial capture |
| 07-07 15:14 | 20m | - / -9 | ON5AM | -4 / - | 4 | Partial capture |
| 07-02 10:38 | 20m | - / - | DK5DW | -19 / - | 4 | Partial capture |
| 07-02 10:29 | 20m | - / - | PE9JAN | -18 / - | 2 | Partial capture |
| 06-30 11:37 | 20m | - / - | 2E1HAT | -7 / - | 9 | Partial capture |
| 06-30 11:32 | 20m | - / - | 2E1HAT | -10 / - | 4 | Partial capture |
| 06-30 11:32 | 20m | +14 / - | SV/AA6PP | - / - | 6 | Partial capture |
| 06-29 10:07 | 20m | - / -9 | F4AXK | -7 / - | 4 | ✓ Closing fragment |
| 06-29 09:58 | 20m | - / -17 | S52RZ | 0 / - | 7 | ✓ Closing fragment |
| 06-29 09:53 | 20m | - / -2 | IK4LZH | +5 / - | 3 | ✓ Closing fragment |
| 06-29 09:48 | 20m | - / -10 | PA2AMJ | -14 / - | 2 | ✓ Closing fragment |
| 06-29 09:38 | 20m | -7 / +6 | EA7HU | -18 / 0 | 4 | Partial capture |
| 06-29 09:33 | 20m | - / - | F4LVE | -9 / - | 3 | Partial capture |
| 06-29 09:33 | 20m | -1 / - | <...> | - / -11 | 4 | Partial capture |
| 06-25 13:25 | 20m | 0 / - | 3G0YM | - / - | 9 | Partial capture |
| 06-22 15:03 | 40m | -5 / - | 3G0YM | - / - | 4 | Partial capture |
| 06-22 09:59 | 20m | - / - | RX6DA | -9 / - | 5 | Partial capture |
| 06-22 09:32 | 20m | - / - | PA1KK | -11 / - | 4 | Partial capture |
| 06-22 09:32 | 20m | -6 / - | ZB2FTY | - / - | 2 | Partial capture |
| 06-22 09:13 | 20m | -5 / - | V31DL | - / - | 9 | Partial capture |
| 06-22 09:11 | 20m | +17 / - | D4OL | - / -9 | 3 | ✓ Closing fragment |
| 06-18 12:09 | 20m | - / - | IU1SPZ | +2 / - | 10 | Partial capture |
| 06-18 11:48 | 20m | -6 / - | V31DL | - / - | 4 | Partial capture |
| 06-18 11:38 | 20m | - / - | PD0PHA | -8 / - | 7 | Partial capture |
| 06-18 11:36 | 20m | -10 / - | VE3GJP | - / -8 | 2 | Partial capture |
| 06-18 09:11 | 10m | - / +2 | F4NDC | -14 / - | 4 | ✓ Closing fragment |
| 06-18 08:52 | 10m | - / -7 | IT9CCB | -8 / - | 2 | Partial capture |
| 06-18 08:35 | 10m | - / - | EC3A | -21 / - | 2 | ✓ Closing fragment |
| 06-18 08:31 | 10m | - / -13 | VK6DW | -10 / - | 5 | Partial capture |
| 06-18 08:21 | 10m | - / - | RV3YR | -5 / - | 5 | Partial capture |
| 06-17 12:06 | 20m | - / - | F8BJE | -12 / - | 6 | Partial capture |
| 06-17 12:05 | 20m | - / -3 | EA2BUW | +11 / - | 3 | ✓ Closing fragment |
| 06-17 12:05 | 20m | - / -14 | IW2MLJ | -12 / - | 2 | Partial capture |
| 06-17 12:01 | 20m | - / -10 | IZ3BUR | -3 / - | 3 | ✓ Closing fragment |
| 06-17 11:58 | 20m | - / +2 | PD1WMD | -6 / - | 2 | ✓ Closing fragment |
| 06-17 11:57 | 20m | - / - | DF1TS | -8 / - | 2 | Partial capture |
| 06-17 11:50 | 20m | -19 / -21 | SV1GYG | -8 / -5 | 4 | ✓ Full exchange observed |
| 06-17 11:42 | 20m | - / -10 | PD1UM | -12 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 104145 -4 513 4U1A EA4GA -04 104815 -22 1924 4U1A 4Z1GY KM72 113430 -4 2363 4U1A RC6OG KN98 093800 +5 1953 C31HS 4U1A JN88 (x3) 093930 +5 1953 ZA5G 4U1A JN88 (x2) 094215 +7 1953 HI8J 4U1A JN88 (x5) 102615 -6 782 KP2B 4U1A JN88 (x2)
UTC dB Audio Message 091315 -14 1256 4U1A F4NDC 73 102815 -7 2791 4U1A DN9DSP JO31 (x4) 103045 -14 1166 4U1A EA3CU JN11 (x2) 103115 +3 2791 4U1A DN9DSP JO31 (x4) 091045 +5 2733 4U1A F1PBZ -18 091745 +2 951 4U1A IU5RTR JN53 (x2) 101715 -18 1271 4U1A RK6MC +08
UTC dB Audio Message 150345 -10 1361 3G0YM 4U1A JN88 (x4)
UTC dB Audio Message 183000 -11 355 <4U1A> R390TB 73 183000 -18 1656 4U1A R1AV KP50 (x2) 183100 -9 355 4U1A R390TB RR73 183100 -12 1656 4U1A R1AV KP50 (x2)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.