SP9TK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP9TK, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-11 and 2026-09-13.
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 17 FT8 messages attributed to SP9TK as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (41%), followed by 40 m (41%) and 60 m (18%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-13 07:39 UTC
Observed FT8 message patterns
- Attributed sample
- 17 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -15 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 9, 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 SP9TK in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to SP9TK
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 · 11 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 208 km (approx.)
- Last such locator decoded
- 2026-09-13 07:38 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 | SP9TK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 07:36 | 40m | -18 / - | SQ100PKP | - / -4 | 4 | Partial capture |
| 07-24 19:17 | 60m | -7 / -3 | SP5HWB | +7 / - | 4 | ✓ Full exchange observed |
| 07-24 19:12 | 80m | -12 / - | SP5HWB | - / - | 3 | Partial capture |
| 07-23 19:40 | 80m | -16 / -12 | SP2TPN | -17 / +1 | 6 | ✓ Full exchange observed |
| 07-22 20:08 | 40m | - / - | DL3JHK | -20 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 065530 -7 2762 SP9TK IQ4JO JN63 065630 -17 914 SP9TK UR5VPR KN68 192845 -11 1431 CQ SP9TK JO90 200800 -21 1305 SP9TK DL3JHK JO62 (x3) 192345 -12 1490 SP9TK SQ5OMY -03 073400 -15 1530 CQ SP9TK JO90 (x2) 073615 -19 1306 SQ100PKP SP9TK JO90 (x4)
UTC dB Audio Message 191700 -10 1527 SP5HWB SP9TK JO90 191745 +7 1527 SP9TK SP5HWB -03 191800 -3 1527 SP5HWB SP9TK R+30 (x2)
UTC dB Audio Message 140215 -19 1292 CQ SP9TK JO90 193400 +11 1400 SP9TK DL8UVG JO71 193930 -20 1267 CQ SP9TK JO90 194045 -17 839 SP9TK SP2TPN JO94 194100 -14 1267 SP2TPN SP9TK +01 194145 -16 839 SP9TK SP2TPN R-12 (x2) 194230 -18 1267 SP2TPN SP9TK RRR 194245 -20 1746 SP9TK SP2TPN 73 191200 -15 976 SP5HWB SP9TK JO90 (x3)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
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