SA0DAU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SA0DAU, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 80m, 20m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-07-03.
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 14 FT8 messages attributed to SA0DAU as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (71%), followed by 10 m (21%) and 20 m (7%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-07-03 19:06 UTC
Observed FT8 message patterns
- Attributed sample
- 14 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -11 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 3.
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 SA0DAU in decoded directed-looking exchanges:
Most frequent locator attributed to SA0DAU
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
- JO89 · 11 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,106 km (approx.)
- Last such locator decoded
- 2026-07-03 19:06 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 | SA0DAU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 14:32 | 20m | - / - | M7HET | -18 / - | 3 | Partial capture |
| 08-29 14:18 | 20m | - / -12 | M0SAC | -12 / - | 2 | ✓ Closing fragment |
| 07-19 05:16 | 20m | - / -19 | G8KHF | -8 / - | 2 | ✓ Closing fragment |
| 07-17 18:37 | 20m | - / -4 | IK4TVP | -8 / - | 3 | ✓ Closing fragment |
| 07-17 18:34 | 20m | - / - | G8DQP | -12 / - | 2 | ✓ Closing fragment |
| 07-17 14:40 | 20m | - / +6 | EA3HKA | +1 / - | 2 | ✓ Closing fragment |
| 07-17 09:25 | 20m | - / 0 | DC5ME | +6 / - | 3 | ✓ Closing fragment |
| 07-17 05:04 | 20m | - / -5 | SV2AOB | -18 / - | 2 | Partial capture |
| 07-15 11:04 | 20m | - / -10 | GJ0KYZ | -10 / - | 3 | ✓ Closing fragment |
| 07-15 09:16 | 20m | - / 0 | E70A | -5 / - | 5 | ✓ Closing fragment |
| 07-03 19:14 | 80m | - / - | DO8BFW | -17 / - | 2 | Partial capture |
| 07-02 18:30 | 10m | - / -16 | UR4QWW | -9 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183545 -8 1039 SA0DAU G8DQP 73 183745 -5 2350 SA0DAU IK4TVP -04 (x3) 150045 -7 2149 SA0DAU IK4RVY RR73 051600 -8 808 SA0DAU G8KHF -19 (x2) 092715 -22 1485 SA0DAU OE9DAI R+00 052915 -9 384 SA0DAU UR4QWW KN77 055445 -13 1083 SA0DAU F4AHJ RR73 141845 -13 2420 SA0DAU M0SAC -12 (x2) 143245 -19 1310 SA0DAU M7HET IO91 (x3)
UTC dB Audio Message 190645 -16 403 SN4WWA SA0DAU JO89 190730 -6 1895 SA0DAU SN93LOT -15 191400 -14 1202 SA0DAU DO8BFW JO30 (x2)
UTC dB Audio Message 183000 -8 1867 SA0DAU UR4QWW -16 (x2)
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee