SP9SDX — 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 SP9SDX, decoded by SO8OO in southeastern Poland. 252 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-08-14.
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 252 FT8 messages attributed to SP9SDX as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (71%), followed by 40 m (23%) and 60 m (6%). Most decodes (100%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-08-14 19:45 UTC
Observed FT8 message patterns
- Attributed sample
- 252 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -19 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 50, moderate (-15 to -9 dB) 82, strong (≥ -8 dB) 120.
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 SP9SDX in decoded directed-looking exchanges:
Most frequent locator attributed to SP9SDX
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
- JO90 · 110 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 208 km (approx.)
- Last such locator decoded
- 2026-06-28 19:30 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 | SP9SDX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-15 19:51 | 20m | - / -8 | M0BEW | +2 / - | 3 | ✓ Closing fragment |
| 08-14 19:56 | 40m | - / -15 | DK4CH | -15 / - | 3 | ✓ Closing fragment |
| 08-14 19:56 | 40m | - / - | SP3SBY | -12 / - | 2 | Partial capture |
| 08-14 19:47 | 40m | - / -14 | UA4FKT | -7 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 193845 -23 1170 SP9SDX RN6MA -16 195130 +0 1170 SP9SDX M0BEW -08 (x3) 201900 -15 1169 SP9SDX M0PFX 73
UTC dB Audio Message 194530 -18 906 F1IQH SP9SDX RR73 194715 -7 904 SP9SDX UA4FKT LO23 (x3) 195345 -11 1444 SP9SDX UT5ZC R-20 195600 -12 1180 SP9SDX SP3SBY JO70 (x2) 195645 -12 1443 SP9SDX DK4CH JN59 (x3)
CW
No CW receptions recorded for this callsign in the last 30 days.
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