S54Z — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving S54Z, decoded by SO8OO in southeastern Poland. 4 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-28 and 2026-10-09.
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 4 FT8 messages attributed to S54Z as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The available sample contains attributed decodes on 40 m (75%) and 20 m (25%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.
Overview
Bands
Last attributed message: 2026-10-09 08:17 UTC
Observed FT8 message patterns
- Attributed sample
- 4 messages
- Active dates
- 2 UTC dates
- S/N summary
- Too few decodes
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
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 S54Z in decoded directed-looking exchanges:
Most frequent locator attributed to S54Z
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- JN76 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 631 km (approx.)
- Last such locator decoded
- 2026-10-09 08:17 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
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 | S54Z S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-09 08:18 | 40m | - / -14 | 3Z0L | -5 / - | 3 | ✓ Closing fragment |
| 07-27 09:18 | 20m | - / -13 | IS0/IK2YCW | -1 / - | 3 | Partial capture |
| 07-27 09:18 | 20m | - / -16 | DJ0MAB | -22 / - | 2 | Partial capture |
| 07-27 09:17 | 20m | - / - | M7PHE | -23 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 081645 -14 985 CQ S54Z JN76 (x3) 081830 -7 2395 S54Z 3Z0L JO81 (x3)
UTC dB Audio Message 091245 -22 2103 S54Z F1HFP JN28 091700 -22 2160 S54Z M7PHE IO93 (x3) 091815 -21 1706 S54Z DJ0MAB R-16 091845 -1 1121 S54Z IS0/IK2YCW R-13 (x2) 091915 -23 1707 S54Z DJ0MAB R-16 091945 -4 1121 S54Z IS0/IK2YCW R-13 092115 -17 2267 S54Z LZ1BT KN12 173815 -23 1182 CQ S54Z
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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