SP9ZWD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP9ZWD, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-07-11.
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 37 FT8 messages attributed to SP9ZWD 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 (97%), followed by 40 m (3%). In this small sample, the estimated median decoder S/N was +5 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-07-11 19:23 UTC
Observed FT8 message patterns
- Attributed sample
- 37 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- +5 dB
- Estimated 10th-90th percentile
- -7 to +11 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 35.
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 SP9ZWD in decoded directed-looking exchanges:
Most frequent locator attributed to SP9ZWD
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
- JN99 · 23 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 206 km (approx.)
- Last such locator decoded
- 2026-07-11 19:22 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 | SP9ZWD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-11 19:20 | 80m | +6 / - | SQ8BWA | +10 / +3 | 8 | ✓ Full exchange observed |
| 07-11 19:07 | 80m | +8 / -3 | SQ8AZT | +15 / -10 | 6 | ✓ Full exchange observed |
| 07-11 19:04 | 80m | +12 / - | SP8BJU | +12 / -7 | 4 | ✓ Closing observed |
| 07-11 18:54 | 80m | -1 / -10 | SQ8AZT | +2 / -14 | 14 | ✓ Full exchange observed |
| 07-11 18:44 | 80m | +7 / - | SP8BJU | +7 / -5 | 5 | ✓ Closing observed |
| 07-11 18:41 | 80m | - / - | UA4FKT | +6 / - | 4 | Partial capture |
| 07-11 18:39 | 80m | -2 / - | SQ8V | +9 / -19 | 4 | ✓ Closing observed |
| 07-11 18:35 | 80m | +5 / - | SQ8BWA | +8 / -6 | 6 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 190545 +11 1708 SP8BJU SP9ZWD 73 190700 +14 892 SQ8AZT SP9ZWD JN99 (x2) 190815 +14 891 SP9ZWD SQ8AZT -03 190830 +8 892 SQ8AZT SP9ZWD R-10 190845 +16 891 SP9ZWD SQ8AZT RR73 190900 +5 891 SQ8AZT SP9ZWD 73 192045 +2 1903 SQ8BWA SP9ZWD JN99 (x4) 192230 +8 1231 SP9ZWD SQ8BWA +17 192245 +8 1903 SQ8BWA SP9ZWD R+03 192300 +12 1231 SP9ZWD SQ8BWA RR73 192315 +9 1903 SQ8BWA SP9ZWD 73
UTC dB Audio Message 175800 -15 2274 SP8HAS SP9ZWD JN99
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