SP3OKJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO91

Receiver-side FT8 activity involving SP3OKJ, decoded by SO8OO in southeastern Poland. 33 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-24 and 2026-09-18.

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 33 FT8 messages attributed to SP3OKJ as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (55%), followed by 80 m (45%). Most decodes (70%) 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 -6 dB.

Overview

33
Messages attributed
7
UTC dates decoded
14
Active 15-min windows
-6 dB
Estimated median S/N

Bands

80m · 15 40m · 18
First attributed message: 2026-06-24
Last attributed message: 2026-09-18 17:00 UTC

Observed FT8 message patterns

Attributed sample
33 messages
Active dates
7 UTC dates
Estimated median S/N
-6 dB
Estimated 10th-90th percentile
-16 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 18.

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 SP3OKJ 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 SP3OKJ

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
JO91 · 19 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
262 km (approx.)
Last such locator decoded
2026-09-18 17:00 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 UTCBandSP3OKJ S/NCounterpartCounterpart S/NMsgsCapture
09-18 16:56 40m -11 / -7 HF100PKP -3 / - 2 Partial capture
09-16 21:13 80m +6 / - SN40KZE - / -9 2 Partial capture
09-15 19:06 80m -8 / - 3Z100PKP - / +1 2 Partial capture
09-15 16:00 40m -5 / - 3Z100PKP - / +2 3 Partial capture
09-07 16:06 40m -10 / -4 HF100PKP -2 / - 3 Partial capture
09-06 15:57 40m -17 / -19 SP100PKP +5 / -10 2 Partial capture
09-06 10:01 40m -14 / - DD7EE -20 / -5 3 ✓ Closing observed
09-06 09:59 40m -14 / -10 SN100PKP -8 / -10 3 Partial capture
09-06 09:56 40m -16 / - SO100PKP - / -15 2 Partial capture
09-06 09:48 40m -14 / - SP6FME -5 / - 4 ✓ Closing observed
09-06 09:43 40m -16 / -11 SN100PKP -6 / - 3 Partial capture
06-27 15:18 20m - / -19 IQ4FJ -2 / - 2 ✓ Closing fragment
06-26 21:42 80m +1 / -24 II9RICT +10 / -2 2 Partial capture
06-26 16:26 10m - / -8 IQ4JO +4 / - 2 ✓ Closing fragment
06-24 20:46 80m +5 / - II0RTER - / - 3 Partial capture
06-24 20:41 80m +7 / - IQ2DB - / +3 5 ✓ Closing fragment
06-24 20:40 80m +6 / - II3DRC - / - 2 Partial capture
06-24 20:17 40m - / -12 IQ3UCY -13 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m 
UTC    dB Audio  Message
100230 -20 1895  SP3OKJ DD7EE 73
101245  -9 1801  SP3OKJ 3Z25POT +02
155700  +5 2425  SP3OKJ SP100PKP -19
155715 -17 2425  SP100PKP SP3OKJ R-10
160615 -12  856  <HF100PKP> SP3OKJ JO91 (x2)
160730  -2  857  SP3OKJ HF100PKP -04
161715 -13 1001  SP100PKP SP3OKJ JO91
160045  -6  786  <3Z100PKP> SP3OKJ JO91 (x3)
165645 -11 1303  HF100PKP SP3OKJ JO91
165700  -3 1302  SP3OKJ HF100PKP -07
170015 -12 1756  SN100PKP SP3OKJ JO91
170100  -4 1373  SP3OKJ SQ100PKP -17
80m 
UTC    dB Audio  Message
204215 +11 1293  IQ2DB SP3OKJ R+03 (x2)
204245  +3 1154  SP3OKJ II0RTER -10
204315  +4 1293  IQ2DB SP3OKJ R+03 (x2)
204600  +3 1153  II0RTER SP3OKJ JO91 (x3)
214200 +10  711  SP3OKJ II9RICT -24
214215  +1  712  II9RICT SP3OKJ R-02
190615  -4 1415  3Z100PKP SP3OKJ JO91 (x2)
190700 +14 1415  SP3OKJ RR73; S54E <...> +04
211345  +5  581  SN40KZE SP3OKJ JO91 (x2)
20m 
UTC    dB Audio  Message
211215 -15  778  SP3OKJ GB1500M -13
155930  -9 2653  SP3OKJ GB071RE -14
160700 -20 1901  SP3OKJ IQ0VT RR73
090830 -22 1830  SP3OKJ IQ6PE RR73
151830  -3 2747  SP3OKJ IQ4FJ -19 (x2)
10m 
UTC    dB Audio  Message
162645  +1 2708  SP3OKJ IQ4JO -08 (x2)
162815  -4 2708  SP3OKJ DJ0MAB JN49

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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