SP9OC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JN99

Receiver-side FT8 activity involving SP9OC, decoded by SO8OO in southeastern Poland. 50 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-04 and 2026-09-06.

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 50 FT8 messages attributed to SP9OC as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (92%), followed by 80 m (8%). Several six-hour UTC windows tied for the largest share (68%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -4 dB.

Overview

50
Messages attributed
4
UTC dates decoded
10
Active 15-min windows
-4 dB
Estimated median S/N

Bands

80m · 4 40m · 46
First attributed message: 2026-07-04
Last attributed message: 2026-09-06 13:19 UTC

Observed FT8 message patterns

Attributed sample
50 messages
Active dates
4 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-16 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 10, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with SP9OC 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 SP9OC

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 · 5 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
206 km (approx.)
Last such locator decoded
2026-09-06 13:06 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 UTCBandSP9OC S/NCounterpartCounterpart S/NMsgsCapture
09-06 13:19 40m +8 / - ON3CL - / -8 2 Partial capture
09-06 13:17 40m 0 / - OZ9FF -10 / -7 3 ✓ Closing observed
09-06 13:15 40m +2 / - HB9HJU -24 / -12 3 ✓ Closing observed
09-06 13:09 40m -1 / - ON3CL - / -13 5 Partial capture
09-06 13:07 40m - / - HA3HZ -6 / - 4 Partial capture
09-06 13:07 40m +3 / -4 HA8DG -18 / -11 5 ✓ Full exchange observed
09-05 08:30 40m -2 / -1 S52D -6 / -3 5 ✓ Full exchange observed
09-05 08:29 40m -4 / - SP5ETF - / -15 2 ✓ Closing fragment
09-05 08:28 40m - / - HA3HZ -9 / - 3 Partial capture
09-05 08:27 40m -2 / -9 DL6ZOG -12 / -5 5 ✓ Full exchange observed
09-05 08:26 40m - / - S51PV -15 / - 6 Partial capture
09-05 08:26 40m -4 / +9 SP5EXA +15 / +6 5 ✓ Full exchange observed
09-05 05:00 40m - / - TA3NK -1 / - 2 Partial capture
09-05 04:58 40m - / -8 F1PBZ -13 / - 3 Partial capture
09-05 04:58 40m - / - PC2J -1 / - 4 Partial capture
09-05 04:52 40m - / +3 Z34K -10 / - 2 ✓ Closing fragment
08-02 21:17 20m - / - JA1NVF -11 / - 3 Partial capture
08-02 20:46 20m - / -18 EB3JT +6 / - 4 ✓ Closing fragment
08-02 20:45 20m - / -15 SV5BYP -8 / - 2 ✓ Closing fragment
08-02 08:21 40m -15 / - PD0BLK - / -19 3 Partial capture
08-02 05:26 40m -9 / - OA4ENG - / -24 6 Partial capture
08-02 05:26 40m - / - DL9KM -8 / - 4 Partial capture
08-02 04:16 40m -11 / - KC1EPL - / -19 3 Partial capture
08-02 04:11 20m - / -14 7Z1BQ -20 / - 2 ✓ Closing fragment
07-05 12:23 10m - / -4 GJ0KYZ +2 / - 2 ✓ Closing fragment
07-04 21:24 40m - / -16 A71UN -14 / - 2 Partial capture
07-04 19:25 10m - / -15 DO1FDK +1 / - 7 ✓ Closing fragment
07-04 19:24 10m - / - DO6BLK -14 / - 2 ✓ Closing fragment
07-04 07:12 40m - / -1 YO5OHT -11 / - 2 ✓ Closing fragment
07-04 05:55 40m - / - PI4DX -20 / - 2 ✓ Closing fragment
07-04 05:49 80m -10 / -14 DA0WWA -14 / -18 6 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
130900  -1  726  ON3CL SP9OC -13 (x4)
131130  +2  726  ES0MVM SP9OC -20
131215  +9  726  SP9OC OK1WCF JO80
131230  +0  726  ON3CL SP9OC -12
131515  +0  726  HB9HJU SP9OC -12 (x2)
131600 -24 1738  SP9OC HB9HJU 73
131730  +3  726  OZ9FF SP9OC -07 (x2)
131815 -10 2314  SP9OC OZ9FF 73
131900  +6  726  ON3CL SP9OC -08 (x2)
20m 
UTC    dB Audio  Message
143200 -11  426  SP9OC F4HTA R-11
202030 -19 1951  SP9OC CR2WWA R-05
041100 -19 1765  SP9OC 7Z1BQ R-14 (x2)
204515 -11 1939  SP9OC SV5BYP R-15 (x2)
204645  +7 1077  SP9OC EB3JT JN01 (x4)
211715 -11  852  SP9OC JA1NVF PM95 (x3)
211915 -10 1076  SP9OC F5MJN JN09
10m 
UTC    dB Audio  Message
130300 -21 1509  SP9OC IT9CMZ R-10
192445 -17 2270  SP9OC DO6BLK JN58 (x2)
192545  +6 2950  SP9OC DO1FDK JO41 (x4)
192715  -2 2571  SP9OC DL1TS JN58
192800  +1 2950  SP9OC DO1FDK JO41 (x3)
122300  +4  646  SP9OC GJ0KYZ R-04 (x2)
153715 -15 2404  SP9OC F1MXE R-01
80m 
UTC    dB Audio  Message
054945 -20 1103  DA0WWA SP9OC -18 (x3)
055130 -13 1217  SP9OC DA0WWA R-14
055145  -2 1103  DA0WWA SP9OC RR73
055200 -16 1217  SP9OC DA0WWA RR73

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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