DA1HW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DA1HW, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-02.
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 DA1HW as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (93%), followed by 80 m (7%). In this small sample, the estimated median decoder S/N was +10 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-02 17:18 UTC
Observed FT8 message patterns
- Attributed sample
- 27 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- +10 dB
- Estimated 10th-90th percentile
- +4 to +14 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 27.
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 DA1HW in decoded directed-looking exchanges:
Most frequent locator attributed to DA1HW
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
- JO63 · 22 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 723 km (approx.)
- Last such locator decoded
- 2026-09-02 17:18 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 | DA1HW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-02 17:15 | 40m | +11 / - | RI1FJL | - / - | 7 | Partial capture |
| 09-02 17:13 | 40m | +13 / - | PD2MAC | - / -4 | 3 | Partial capture |
| 09-02 17:07 | 40m | +8 / - | RI1FJL | - / - | 11 | Partial capture |
| 09-02 17:04 | 80m | +3 / - | RA9MAI | - / - | 2 | Partial capture |
| 09-02 17:01 | 40m | - / -3 | DK7ZT | -4 / - | 6 | Partial capture |
| 09-02 17:01 | 40m | - / - | DL2ALY | -7 / - | 3 | Partial capture |
| 09-02 17:00 | 40m | +10 / -13 | GJ0KYZ | -8 / +6 | 4 | ✓ Full exchange observed |
| 09-02 16:59 | 40m | +8 / - | RA6FSV | -5 / -25 | 2 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 171100 +8 2935 RI1FJL DA1HW JO63 (x5) 171345 +10 2935 PD2MAC DA1HW JO63 (x3) 171530 +14 2935 RI1FJL DA1HW JO63 (x7)
UTC dB Audio Message 170415 +4 2567 RA9MAI DA1HW JO63 (x2)
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee