ON3THC — 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 ON3THC, decoded by SO8OO in southeastern Poland. 78 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-15.
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 78 FT8 messages attributed to ON3THC as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (53%), followed by 40 m (47%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-15 06:23 UTC
Observed FT8 message patterns
- Attributed sample
- 78 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -16 to -7 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 51, strong (≥ -8 dB) 17.
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 ON3THC in decoded directed-looking exchanges:
Most frequent locator attributed to ON3THC
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
- JO10 · 51 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,335 km (approx.)
- Last such locator decoded
- 2026-10-15 06:21 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 | ON3THC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-15 06:22 | 40m | -16 / - | EA3CFV | - / -5 | 2 | ✓ Closing fragment |
| 10-15 06:20 | 40m | -17 / -4 | DK8CX | -4 / - | 3 | ✓ Closing observed |
| 10-15 06:17 | 40m | -15 / -5 | SP6MLX | -4 / +3 | 6 | ✓ Full exchange observed |
| 10-15 06:15 | 40m | -15 / -20 | SP3IPA | 0 / +3 | 2 | Partial capture |
| 10-15 06:03 | 40m | -12 / - | SQ8V | - / -12 | 2 | ✓ Closing fragment |
| 10-15 06:00 | 40m | -12 / - | KA9FOX | - / -19 | 3 | ✓ Closing fragment |
| 10-15 05:52 | 40m | - / -14 | SP4MPH | +2 / - | 3 | ✓ Closing fragment |
| 10-15 05:46 | 40m | -11 / -17 | IU8RFW | -16 / -2 | 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 061545 -15 976 SP3IPA ON3THC R+03 061645 -12 976 CQ ON3THC JO10 061715 -14 976 SP6MLX ON3THC +03 (x2) 061800 -8 1879 ON3THC SP6MLX R-05 061845 -16 976 CQ ON3THC JO10 061900 +2 1479 ON3THC SP6MLX R-05 061915 -16 976 SP6MLX ON3THC RR73 061930 -5 1479 ON3THC SP6MLX 73 062030 -3 977 ON3THC DK8CX R-04 062045 -17 975 DK8CX ON3THC RR73 062100 -6 977 ON3THC DK8CX 73 062145 -15 976 CQ ON3THC JO10 062215 -21 975 EA3CFV ON3THC -05 (x2)
CW
No CW receptions recorded for this callsign in the last 30 days.
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