GU4YBW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving GU4YBW, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 60m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-25 and 2026-09-06.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 6 FT8 messages attributed to GU4YBW as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (83%), followed by 60 m (17%). In this small sample, the estimated median decoder S/N was -3 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-06 19:35 UTC
Observed FT8 message patterns
- Attributed sample
- 6 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -3 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 5.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with GU4YBW in decoded directed-looking exchanges:
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 | GU4YBW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 06:22 | 40m | - / -16 | DL3CY | +6 / - | 2 | ✓ Closing fragment |
| 09-13 18:37 | 60m | - / -13 | OZ7QC | -4 / - | 2 | ✓ Closing fragment |
| 09-13 18:33 | 60m | - / -10 | GX4RAF/P | -12 / - | 4 | ✓ Closing fragment |
| 09-13 18:31 | 60m | - / -12 | OH5D | -4 / - | 3 | ✓ Closing fragment |
| 09-13 18:29 | 60m | - / -8 | DH3YAK | -9 / - | 3 | ✓ Closing fragment |
| 09-13 18:28 | 60m | - / -17 | F1IQH | -11 / - | 3 | ✓ Closing fragment |
| 09-13 18:25 | 60m | - / -5 | DK2CC | -10 / - | 4 | ✓ Closing fragment |
| 09-13 18:20 | 60m | - / -4 | OZ9KHA | -4 / - | 5 | ✓ Closing fragment |
| 09-13 18:20 | 60m | - / -10 | SM0NSJ | -2 / - | 8 | ✓ Closing fragment |
| 09-13 18:20 | 60m | - / -4 | SM5VSS | -5 / - | 3 | ✓ Closing fragment |
| 09-13 18:18 | 60m | - / -5 | LY8O | -2 / - | 3 | ✓ Closing fragment |
| 09-12 06:07 | 40m | - / -23 | F4MOJ | -12 / - | 2 | ✓ Closing fragment |
| 09-11 06:41 | 40m | - / -12 | HA3IC | +6 / - | 4 | ✓ Closing fragment |
| 09-11 06:38 | 40m | - / - | SM7HZK | -15 / - | 2 | Partial capture |
| 09-11 06:38 | 40m | - / - | F6BEC | -4 / - | 2 | ✓ Closing fragment |
| 09-11 06:36 | 40m | - / - | IZ7NMD | -10 / - | 2 | ✓ Closing fragment |
| 09-11 06:33 | 40m | - / -3 | DF6QN | -2 / - | 2 | ✓ Closing fragment |
| 09-11 06:28 | 40m | - / - | SQ2PHC | +11 / - | 2 | Partial capture |
| 09-09 06:11 | 80m | - / - | DO1FZL | -13 / - | 5 | Partial capture |
| 09-09 06:03 | 60m | - / - | F5MOO | -12 / - | 2 | Partial capture |
| 09-08 06:21 | 80m | - / -14 | DL8DCM | -12 / - | 2 | Partial capture |
| 09-06 19:33 | 60m | -13 / -15 | EW2RA | +3 / -13 | 6 | ✓ Full exchange observed |
| 09-06 19:33 | 60m | - / -18 | GM2OT | -10 / - | 2 | ✓ Closing fragment |
| 08-24 17:45 | 40m | - / -15 | OH5HUR | +4 / - | 6 | ✓ Closing fragment |
| 08-24 17:43 | 40m | - / -15 | LZ2VQ | +6 / - | 2 | ✓ Closing fragment |
| 08-22 05:55 | 40m | - / -4 | PA5MB | -15 / - | 3 | ✓ Closing fragment |
| 08-21 05:50 | 40m | - / -1 | DF3TZ | +9 / - | 3 | ✓ Closing fragment |
| 08-21 05:46 | 40m | - / -3 | DF5AU | +5 / - | 3 | ✓ Closing fragment |
| 08-21 05:38 | 40m | - / - | DL7FE | -2 / - | 3 | Partial capture |
| 08-20 05:38 | 40m | - / - | IK7DTP | -6 / - | 2 | Partial capture |
| 08-20 05:30 | 40m | - / -8 | IK3SCB | -14 / - | 2 | ✓ Closing fragment |
| 08-20 05:05 | 60m | - / -7 | <...> | -15 / - | 2 | Partial capture |
| 08-20 04:52 | 60m | - / -19 | LA6YEA | -12 / - | 3 | ✓ Closing fragment |
| 08-19 06:30 | 40m | - / - | OZ1HYM | -15 / - | 7 | Partial capture |
| 08-13 17:44 | 80m | - / - | DF5DY | +3 / - | 6 | Partial capture |
| 08-11 06:11 | 40m | - / - | S53MJ | -16 / - | 2 | Partial capture |
| 08-11 06:10 | 40m | - / -21 | IK2TPX | -16 / - | 2 | Partial capture |
| 08-10 06:14 | 40m | - / - | SP0DF | -24 / - | 2 | ✓ Closing fragment |
| 08-10 06:13 | 40m | - / -8 | DH2RL | -19 / - | 2 | ✓ Closing fragment |
| 08-08 06:15 | 60m | - / -12 | DL7UFN | -11 / - | 3 | ✓ Closing fragment |
| 08-08 06:12 | 60m | - / -6 | DM5ME | +7 / - | 3 | Partial capture |
| 08-08 06:08 | 60m | - / -9 | DM5MA | 0 / - | 6 | ✓ Closing fragment |
| 08-08 06:07 | 60m | - / +1 | DL3IKE | -12 / - | 3 | ✓ Closing fragment |
| 08-08 06:05 | 60m | - / -11 | PA4COR | -8 / - | 2 | ✓ Closing fragment |
| 08-05 06:04 | 40m | - / -2 | DL1ABI | -12 / - | 4 | ✓ Closing fragment |
| 08-05 05:58 | 40m | - / -14 | DM5ME | -16 / - | 2 | ✓ Closing fragment |
| 07-25 13:32 | 20m | - / -7 | EA3GXK | -7 / - | 3 | ✓ Closing fragment |
| 07-25 13:22 | 20m | -2 / - | OM2IDN | - / -6 | 3 | ✓ Closing fragment |
| 07-21 06:10 | 40m | - / -11 | 9A4N | -16 / - | 2 | ✓ Closing fragment |
| 07-21 06:07 | 40m | - / -6 | OE8DDX | -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 063845 -14 2467 GU4YBW SM7HZK JO76 063915 +5 491 GU4YBW SQ2PHC JO94 063915 -16 2467 GU4YBW SM7HZK JO76 063915 -1 957 GU4YBW F6BEC 73 064115 +4 1111 GU4YBW HA3IC JN86 (x4) 055445 +3 301 GU4YBW DG1ROL JN58 060515 +4 2666 GU4YBW EU4U RR73 060745 -11 2359 GU4YBW F4MOJ R-23 (x2) 062215 +6 1788 GU4YBW DL3CY -16 (x2) 062615 -20 1846 GU4YBW PD0MJC 73
UTC dB Audio Message 182845 -10 812 GU4YBW F1IQH R-17 (x2) 182915 -10 1842 GU4YBW DH3YAK JO31 (x3) 183145 -3 1403 GU4YBW OH5D KP30 (x3) 183315 -11 935 GU4YBW GX4RAF/P IO91 (x4) 183715 -4 1599 GU4YBW OZ7QC -13 (x2) 183845 -6 290 GU4YBW EA9AR IM85
UTC dB Audio Message 174445 +5 540 GU4YBW DF5DY JO41 (x6) 062145 -12 2078 GU4YBW DL8DCM JO41 (x2) 060545 -24 1451 GU4YBW ON1JP RR73 061145 -12 2076 GU4YBW DO1FZL JO50 (x5)
UTC dB Audio Message 132130 -3 390 SQ8AQN GU4YBW 73 132200 -6 390 OM2IDN GU4YBW -06 (x3) 132400 +0 392 DG5DR GU4YBW -01 133215 -9 397 GU4YBW EA3GXK IM98 (x3)
UTC dB Audio Message 175315 -3 2082 GU4YBW DC8SM R-11 (x2)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
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