ON4BAT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ON4BAT, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-29.
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 23 FT8 messages attributed to ON4BAT as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (70%), followed by 20 m (30%). Several six-hour UTC windows tied for the largest share (52%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-08-29 07:48 UTC
Observed FT8 message patterns
- Attributed sample
- 23 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -19 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 1.
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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with ON4BAT in decoded directed-looking exchanges:
Most frequent locator attributed to ON4BAT
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
- JO20 · 22 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,194 km (approx.)
- Last such locator decoded
- 2026-08-29 07:48 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 | ON4BAT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 07:45 | 20m | -11 / - | ZL2BX | - / - | 5 | Partial capture |
| 08-29 06:36 | 20m | - / -11 | 4O4DB | -4 / - | 3 | ✓ Closing fragment |
| 08-29 06:22 | 20m | - / -17 | CE1KR | -14 / - | 2 | Partial capture |
| 08-29 06:17 | 20m | - / -16 | EC3A | -4 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 080330 -19 2072 <...> ON4BAT JO20 061745 -6 585 ON4BAT EC3A -16 (x2) 062245 -15 741 ON4BAT CE1KR -17 (x2) 063600 -1 2332 ON4BAT 4O4DB -11 (x3) 074530 -10 1614 ZL2BX ON4BAT JO20 (x5)
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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