4X5EF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving 4X5EF, decoded by SO8OO in southeastern Poland. 330 related FT8 messages, 59 CQ messages, observed on 80m, 40m, 20m, 10m, across 17 UTC dates. Heard between 2026-06-18 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 4X5EF worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by 4X5EF
Approximate centre of KM72, decoded 2026-08-20 07:51 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 | 4X5EF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-20 07:27 | 20m | - / - | RX6O | -10 / - | 2 | Partial capture |
| 08-20 06:45 | 20m | - / -14 | G3YQA | -2 / - | 2 | Partial capture |
| 08-20 06:45 | 20m | - / -15 | F4LNM | +8 / - | 11 | Partial capture |
| 08-20 06:27 | 20m | - / - | RD3FY | -13 / - | 2 | Partial capture |
| 08-20 06:17 | 20m | - / -10 | M0ILT | -6 / - | 2 | ✓ Closing fragment |
| 08-20 06:04 | 20m | - / - | DL1UDO | -14 / - | 3 | Partial capture |
| 08-20 06:03 | 20m | - / -15 | R5AV | -4 / - | 3 | Partial capture |
| 08-20 06:00 | 20m | - / -10 | PA0ARR | -11 / - | 2 | Partial capture |
| 08-19 20:12 | 20m | - / -15 | F1PBZ | 0 / - | 2 | ✓ Closing fragment |
| 08-17 20:34 | 20m | - / -15 | F2VX | +8 / - | 5 | ✓ Closing fragment |
| 08-15 20:08 | 20m | - / -11 | F4HEX | +11 / - | 3 | ✓ Closing fragment |
| 08-15 17:39 | 20m | -10 / - | R1OBH | - / -17 | 3 | Partial capture |
| 08-15 06:50 | 20m | - / - | F4HQL | -3 / - | 8 | Partial capture |
| 08-15 06:34 | 20m | - / -12 | F1PBZ | -5 / - | 3 | Partial capture |
| 08-14 20:43 | 20m | -3 / -10 | DL1R | -12 / -18 | 4 | ✓ Full exchange observed |
| 08-14 19:42 | 20m | - / - | G4PTP | -18 / - | 2 | Partial capture |
| 08-14 19:42 | 20m | - / - | LB8OH | -4 / - | 3 | Partial capture |
| 08-14 19:35 | 20m | - / - | GJ0KYZ | +3 / - | 3 | Partial capture |
| 08-08 19:02 | 20m | - / - | G8OO | -17 / - | 5 | Partial capture |
| 08-08 18:59 | 20m | - / - | JE1LFX | -6 / - | 2 | Partial capture |
| 08-08 18:53 | 20m | - / -16 | CR7BRV | -11 / - | 6 | ✓ Closing fragment |
| 08-08 17:53 | 20m | - / - | F1PPH | -20 / - | 2 | Partial capture |
| 08-08 17:51 | 20m | - / +1 | LA4SI | -15 / - | 3 | Partial capture |
| 08-08 17:42 | 20m | - / -3 | BG2BFG | -16 / - | 3 | ✓ Closing fragment |
| 08-08 17:41 | 20m | - / -12 | S58S | -3 / - | 10 | ✓ Closing fragment |
| 08-08 17:38 | 20m | - / - | DL1UDO | -11 / - | 4 | Partial capture |
| 08-08 15:50 | 20m | - / -11 | PD2WL | -8 / - | 4 | ✓ Closing fragment |
| 08-07 19:36 | 20m | -18 / -9 | DL3NA | -1 / - | 4 | ✓ Closing observed |
| 08-07 19:34 | 20m | - / - | PI4TX | -17 / - | 2 | Partial capture |
| 08-06 07:28 | 20m | - / - | DL1R | +1 / - | 7 | Partial capture |
| 08-05 18:51 | 20m | -9 / -7 | KB1PA | -13 / -16 | 6 | ✓ Full exchange observed |
| 08-05 18:47 | 20m | - / - | F4MGP | -12 / - | 3 | Partial capture |
| 08-05 18:47 | 20m | - / - | F4NKF | -10 / - | 4 | Partial capture |
| 08-05 09:01 | 20m | - / -13 | RD3FY | -6 / - | 3 | Partial capture |
| 08-05 08:53 | 20m | - / - | YT3PL | -13 / - | 2 | ✓ Closing fragment |
| 08-05 08:07 | 20m | - / +2 | R7OV | -8 / - | 3 | Partial capture |
| 08-03 19:56 | 20m | -8 / - | PI4DX | - / -22 | 4 | Partial capture |
| 08-03 19:52 | 20m | -10 / - | PI4DX | - / -22 | 2 | Partial capture |
| 08-03 15:08 | 20m | - / - | DL1UDO | -12 / - | 3 | Partial capture |
| 08-03 13:37 | 20m | - / -18 | PA7BVB | -17 / - | 2 | ✓ Closing fragment |
| 08-03 09:34 | 20m | - / - | LZ1BT | -8 / - | 2 | Partial capture |
| 08-03 09:26 | 20m | - / - | LZ1BT | -8 / - | 5 | Partial capture |
| 08-02 20:44 | 20m | - / -13 | PA2EW | +9 / - | 3 | ✓ Closing fragment |
| 08-02 20:44 | 20m | - / - | PD0SF | -12 / - | 2 | Partial capture |
| 08-02 20:20 | 20m | - / -13 | PD1PBX | -5 / - | 10 | ✓ Closing fragment |
| 08-02 18:22 | 20m | - / - | EA4CTP | -15 / - | 3 | Partial capture |
| 08-02 17:58 | 20m | - / - | PD4WAC | -3 / - | 3 | Partial capture |
| 08-02 15:07 | 20m | -18 / - | BG7BMG | - / -18 | 2 | Partial capture |
| 08-02 14:52 | 20m | -15 / - | PD4RJ | - / -18 | 3 | Partial capture |
| 08-02 14:06 | 20m | - / - | PA0GSP | -20 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 064600 +10 2229 4X5EF F4LNM JN09 064600 -3 719 4X5EF G3YQA -14 064630 +10 2229 4X5EF F4LNM JN09 (x8) 072330 -12 2227 4X5EF F4VTR JN25 072345 -20 2228 CQ 4X5EF KM72 072700 -9 2228 4X5EF RX6O KN98 (x2) 075115 -19 2228 CQ 4X5EF KM72
UTC dB Audio Message 180715 -10 589 4X5EF OK1JAZ JO70
UTC dB Audio Message 091430 -17 2097 4X5EF R6DZL LN04 091430 +4 2733 4X5EF F1PBZ -09
UTC dB Audio Message 184930 -9 2182 4X5EF OE2AGZ JN67 (x4)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.