SP5FXJ — 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 SP5FXJ, decoded by SO8OO in southeastern Poland. 13 FT8 messages attributed to this token as transmitter, on 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-21.
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 13 FT8 messages attributed to SP5FXJ as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). In this small sample, the estimated median decoder S/N was +11 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 13 messages
- Active dates
- 1 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) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 13.
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 SP5FXJ in decoded directed-looking exchanges:
Most frequent locator attributed to SP5FXJ
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 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 208 km (approx.)
- Last such locator decoded
- 2026-08-21 22:15 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 | SP5FXJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-21 22:23 | 80m | +11 / - | EA8UP | - / -8 | 2 | ✓ Closing fragment |
| 08-21 22:18 | 80m | +16 / -4 | YO9CX | -18 / -11 | 4 | ✓ Full exchange observed |
| 08-21 22:17 | 80m | +14 / +9 | 9A4ZM | -3 / +9 | 5 | ✓ Full exchange observed |
| 08-21 22:15 | 80m | +12 / - | EA5HM | - / -9 | 3 | ✓ Closing fragment |
| 08-21 22:12 | 80m | 0 / - | EA8UP | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 221545 +10 1204 EA5HM SP5FXJ -09 (x3) 221700 -4 1200 SP5FXJ 9A4ZM JN86 221715 +12 1704 9A4ZM SP5FXJ +09 221730 -5 1200 SP5FXJ 9A4ZM R+09 221745 +17 1204 9A4ZM SP5FXJ RR73 221800 -14 1672 SP5FXJ YO9CX -04 221800 -1 1200 SP5FXJ 9A4ZM 73 221815 +15 1204 YO9CX SP5FXJ R-11 221830 -21 1672 SP5FXJ YO9CX RR73 221845 +16 1204 YO9CX SP5FXJ 73 222315 +11 1204 TF3VS SP5FXJ +02 222345 +11 1204 EA8UP SP5FXJ -08 (x2)
CW
No CW receptions recorded for this callsign in the last 30 days.
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