DH2OS — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DH2OS, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-04.
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 15 FT8 messages attributed to DH2OS 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 (100%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 15 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -13 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 2.
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 DH2OS in decoded directed-looking exchanges:
Most frequent locator attributed to DH2OS
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
- JO42 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 934 km (approx.)
- Last such locator decoded
- 2026-09-04 15:38 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 | DH2OS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-05 09:31 | 40m | - / - | DK7ZT | -18 / - | 2 | ✓ Closing fragment |
| 09-04 15:46 | 40m | -15 / - | M0SCK | - / -5 | 2 | Partial capture |
| 09-04 15:43 | 40m | -15 / -13 | EU2AAI | +6 / -9 | 7 | ✓ Full exchange observed |
| 09-04 15:38 | 40m | -10 / - | LB9KJ | - / -20 | 5 | ✓ Closing fragment |
| 09-04 15:32 | 40m | -14 / - | LB9KJ | - / -15 | 4 | Partial capture |
| 09-04 15:32 | 40m | -10 / -1 | DL8RO | -10 / -9 | 8 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 154000 -11 1539 LB9KJ DH2OS R-20 (x3) 154330 +7 1081 DH2OS EU2AAI -13 (x3) 154445 -15 1538 EU2AAI DH2OS R-09 154500 +6 1080 DH2OS EU2AAI -13 (x2) 154545 -15 1538 EU2AAI DH2OS 73 154600 -12 1296 DH2OS F4FSY -11 154645 -14 1538 M0SCK DH2OS -05 (x2) 093130 -18 1906 DH2OS DK7ZT +14 (x2)
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