UA0SDX — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving UA0SDX, decoded by SO8OO in southeastern Poland. 28 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-06-11.
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 28 FT8 messages attributed to UA0SDX as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 28 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -20 to -11 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 14, 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 UA0SDX in decoded directed-looking exchanges:
Most frequent locator attributed to UA0SDX
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
- OO22 · 15 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 5,470 km (approx.)
- Last such locator decoded
- 2026-06-11 10:50 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 | UA0SDX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-31 13:02 | 80m | - / -11 | RC9F | -18 / - | 2 | ✓ Closing fragment |
| 08-23 04:03 | 20m | - / +4 | RD4HX | -10 / - | 2 | Partial capture |
| 08-23 03:58 | 20m | - / -19 | R4AEH | +5 / - | 3 | ✓ Closing fragment |
| 08-23 03:55 | 20m | - / -10 | RY3F | -13 / - | 2 | ✓ Closing fragment |
| 08-21 07:35 | 20m | - / -14 | DK6WS | -17 / - | 4 | Partial capture |
| 08-15 06:19 | 20m | - / -16 | R50RKZ | -6 / - | 2 | ✓ Closing fragment |
| 08-09 06:21 | 20m | - / -21 | EA1A | -11 / - | 2 | ✓ Closing fragment |
| 08-09 06:18 | 20m | - / -5 | F4BPO | -3 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 130230 -18 1431 UA0SDX RC9F -11 (x2) 131015 -21 1345 UA0SDX R8CA RR73
UTC dB Audio Message 061930 -5 2181 UA0SDX R50RKZ -16 (x2) 073545 -16 1269 UA0SDX DK6WS -14 (x4) 073915 -10 1765 UA0SDX EA5AR IM99 035415 -15 2321 UA0SDX RD9M/3 -15 035515 -12 2083 UA0SDX RY3F -10 (x2) 035815 -1 1666 UA0SDX R4AEH LN28 (x3) 040315 -10 2083 UA0SDX RD4HX +04 (x2)
CW
No CW receptions recorded for this callsign in the last 30 days.
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