SP7EXY — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP7EXY, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-06-14.
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 5 FT8 messages attributed to SP7EXY as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). In this small sample, the estimated median decoder S/N was -20 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 5 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -20 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 0.
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 SP7EXY in decoded directed-looking exchanges:
Most frequent locator attributed to SP7EXY
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
- KO00 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 84 km (approx.)
- Last such locator decoded
- 2026-06-10 13:23 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 | SP7EXY S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 11:19 | 10m | - / - | DL3NGN | -17 / - | 3 | ✓ Closing fragment |
| 08-27 11:19 | 10m | - / -16 | F4AYI | -18 / - | 2 | Partial capture |
| 08-27 11:17 | 10m | - / -16 | CR7BRV | +5 / - | 2 | ✓ Closing fragment |
| 08-27 10:47 | 10m | - / - | F4LSL | -5 / - | 2 | Partial capture |
| 08-17 08:32 | 10m | - / 0 | F5CUN | +1 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 083245 +3 483 SP7EXY F5CUN JN26 (x4) 104730 -5 2195 SP7EXY F4LSL JN36 (x2) 111745 +5 666 SP7EXY CR7BRV R-16 (x2) 111945 -19 2321 SP7EXY F4AYI JN08 111945 -17 1180 SP7EXY DL3NGN JN59 (x2) 112045 -17 2321 SP7EXY F4AYI R-16 112045 -18 1180 SP7EXY DL3NGN 73
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