5Z4SK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving 5Z4SK, decoded by SO8OO in southeastern Poland. 136 related FT8 messages, 2 CQ messages, observed on 20m, 10m, across 4 UTC dates. Heard between 2026-06-08 and 2026-06-12.
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 5Z4SK worked most often, as logged from our receiver:
Activity Heatmap
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 | 5Z4SK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 06-12 08:08 | 10m | - / -14 | R2BKT | -6 / - | 5 | Partial capture |
| 06-11 15:38 | 20m | -16 / -6 | SP5DFG | -12 / -7 | 2 | Partial capture |
| 06-11 15:38 | 20m | -16 / -11 | A92AE | -10 / -7 | 5 | ✓ Full exchange observed |
| 06-11 15:36 | 20m | - / -13 | R0AX | -14 / - | 2 | ✓ Closing fragment |
| 06-11 15:35 | 20m | -16 / -14 | R2BDR | -7 / -12 | 5 | ✓ Full exchange observed |
| 06-11 15:33 | 20m | -14 / -18 | EK1KE | -14 / -15 | 10 | Partial capture |
| 06-09 08:22 | 10m | - / -25 | RZ3EM | +15 / - | 35 | Partial capture |
| 06-09 08:16 | 10m | - / - | R6FX | -5 / - | 2 | Partial capture |
| 06-09 08:03 | 10m | - / -18 | RA4HL | -16 / - | 4 | ✓ Closing fragment |
| 06-08 18:41 | 10m | - / - | SV2CLJ | -5 / - | 3 | Partial capture |
| 06-08 18:34 | 10m | - / -11 | PD2GCM | +5 / - | 3 | ✓ Closing fragment |
| 06-08 18:32 | 10m | - / -4 | F1PBZ | +23 / - | 2 | ✓ Closing fragment |
| 06-08 18:15 | 20m | -7 / -14 | SP4NKU | +8 / - | 4 | ✓ Closing observed |
| 06-08 18:15 | 20m | - / -10 | UA3SAO | +6 / - | 5 | Partial capture |
| 06-08 18:14 | 20m | -9 / -12 | UN8DSW | -4 / -11 | 5 | ✓ Full exchange observed |
| 06-08 18:09 | 20m | -8 / - | LZ2PC | - / 0 | 2 | ✓ Closing fragment |
| 06-08 18:07 | 20m | - / -18 | JH5AVM | -5 / - | 7 | Partial capture |
| 06-08 18:03 | 20m | -6 / -13 | RC5F | +4 / -1 | 5 | ✓ Full exchange observed |
| 06-08 17:58 | 20m | - / -11 | EA3NT | -14 / - | 3 | ✓ Closing fragment |
| 06-08 17:56 | 20m | - / -4 | SM5MRW | -9 / - | 6 | Partial capture |
| 06-08 17:55 | 20m | - / -5 | F4FLF | +11 / - | 4 | ✓ Closing fragment |
| 06-08 17:53 | 20m | -8 / -16 | R3DCM | +13 / -5 | 4 | ✓ Full exchange observed |
| 06-08 17:53 | 20m | - / - | EA3NT | -4 / - | 2 | Partial capture |
| 06-08 17:49 | 20m | -7 / - | DB1SN | - / -4 | 2 | ✓ Closing fragment |
| 06-08 17:48 | 20m | - / - | EA3NT | -2 / - | 4 | Partial capture |
| 06-08 17:47 | 20m | -6 / -18 | TA3TK | -1 / -9 | 5 | ✓ Full exchange observed |
| 06-08 17:47 | 20m | - / - | PD1ADA | -13 / - | 4 | Partial capture |
| 06-08 17:46 | 20m | -8 / - | R1QF | - / -6 | 2 | ✓ Closing fragment |
| 06-08 17:43 | 20m | -8 / - | 7Z1IS | - / -8 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 084130 +18 2664 5Z4SK RZ3EM R-26 (x4) 084300 -24 1859 TA4DX 5Z4SK 73 084330 +14 2664 5Z4SK RZ3EM R-26 (x2) 080545 -21 1844 5Z4SK R5DM KO86 080815 -6 1935 5Z4SK R2BKT -14 (x5) 081400 -10 1963 5Z4SK R3CE KO85 082200 +15 364 5Z4SK R2PX KO93
UTC dB Audio Message 153615 -7 1630 5Z4SK R2BDR -14 153615 -18 1471 5Z4SK EK1KE -18 153645 -9 1630 5Z4SK R2BDR -14 153645 -15 2372 5Z4SK R0AX 73 153700 -16 1820 R2BDR 5Z4SK R-12 153715 -6 1630 5Z4SK R2BDR RR73 153745 -13 1471 5Z4SK EK1KE -18 153815 -11 849 5Z4SK A92AE -11 153830 -16 1820 SP5DFG 5Z4SK -07 153845 -12 2537 5Z4SK SP5DFG R-06 153845 -11 850 5Z4SK A92AE -11 (x2) 153915 -14 1471 5Z4SK EK1KE -18 153930 -16 1820 A92AE 5Z4SK R-07 153945 -9 850 5Z4SK A92AE RR73
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.