ON7ASZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ON7ASZ, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-03 and 2026-08-26.
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 27 FT8 messages attributed to ON7ASZ as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (56%), followed by 10 m (44%). 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 -9 dB.
Overview
Bands
Last attributed message: 2026-08-26 08:10 UTC
Observed FT8 message patterns
- Attributed sample
- 27 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -19 to +21 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 12.
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 ON7ASZ in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to ON7ASZ
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 · 16 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,335 km (approx.)
- Last such locator decoded
- 2026-08-26 08:07 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 | ON7ASZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-26 08:07 | 20m | +20 / - | 4L7T | - / -11 | 5 | ✓ Closing fragment |
| 08-21 15:57 | 10m | -2 / - | HB10GBT | -7 / -9 | 3 | Partial capture |
| 08-18 14:52 | 20m | -10 / - | VR2VOG | - / - | 5 | Partial capture |
| 08-16 16:29 | 10m | -16 / - | DL9KM | - / - | 2 | ✓ Closing fragment |
| 08-16 16:26 | 10m | -18 / - | SV2FNT | - / -14 | 4 | ✓ Closing fragment |
| 08-01 07:52 | 20m | +1 / +2 | HI8UD | -5 / - | 2 | Partial capture |
| 08-01 07:47 | 20m | -11 / - | PD0DEX | -24 / - | 2 | ✓ Closing observed |
| 07-06 07:18 | 20m | -13 / - | KF0YOB | - / - | 3 | Partial capture |
| 07-03 07:46 | 10m | -7 / - | SY2CWM | - / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 071900 -15 1006 KF0YOB ON7ASZ JO10 074715 -24 1903 ON7ASZ PD0DEX RR73 074730 -11 1902 PD0DEX ON7ASZ 73 075245 +1 878 HI8UD ON7ASZ JO10 075330 -5 878 ON7ASZ HI8UD +02 145215 -13 1576 VR2VOG ON7ASZ JO10 (x5) 080715 +16 286 4L7T ON7ASZ JO10 (x5)
UTC dB Audio Message 074630 -9 1184 SY2CWM ON7ASZ JO10 (x3) 162630 -19 1419 SV2FNT ON7ASZ JO10 (x4) 162930 -20 1419 DL9KM ON7ASZ +14 (x2) 163145 -9 2272 D2UY ON7ASZ JO10 155745 -1 2311 HB10GBT ON7ASZ JO10 155800 -7 2311 ON7ASZ HB10GBT +12 155815 -2 2312 HB10GBT ON7ASZ R-09
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee