S57ATF — 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 S57ATF, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-12.
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 20 FT8 messages attributed to S57ATF as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 20 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -10 to -2 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 16.
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 S57ATF in decoded directed-looking exchanges:
Most frequent locator attributed to S57ATF
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 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 631 km (approx.)
- Last such locator decoded
- 2026-10-12 18:45 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 | S57ATF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-12 18:45 | 40m | -4 / 0 | PD3WMA | -10 / -12 | 5 | ✓ Full exchange observed |
| 10-12 18:40 | 40m | -10 / - | DK8HC | - / -2 | 2 | ✓ Closing fragment |
| 10-12 18:39 | 40m | -7 / - | F4FSY | -10 / +3 | 3 | ✓ Closing observed |
| 10-12 18:38 | 40m | -5 / -9 | YO4NF | +1 / - | 4 | ✓ Full exchange observed |
| 10-12 18:36 | 40m | -7 / +5 | DK7ZT | +4 / +6 | 5 | ✓ Full exchange observed |
| 10-12 18:35 | 40m | -5 / -16 | OZ9FF | -13 / +3 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183745 -7 1474 DK7ZT S57ATF 73 183800 +4 1474 S57ATF YO4NF -09 183815 -2 1474 YO4NF S57ATF R+12 183830 -2 1474 S57ATF YO4NF RR73 183845 -8 1474 YO4NF S57ATF 73 183915 -9 1474 F4FSY S57ATF R+03 (x2) 184000 -10 1626 S57ATF F4FSY RR73 184045 -11 1474 DK8HC S57ATF -02 (x2) 184500 -4 2252 PD3WMA S57ATF JN76 184515 -12 813 S57ATF PD3WMA +00 184530 -5 2252 PD3WMA S57ATF R-12 184545 -7 812 S57ATF PD3WMA RR73 (x2)
CW
No CW receptions recorded for this callsign in the last 30 days.
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