SP9TNK — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Poland Most frequent locator attributed to this token: JO90

Receiver-side FT8 activity involving SP9TNK, decoded by SO8OO in southeastern Poland. 90 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-05 and 2026-09-29.

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 90 FT8 messages attributed to SP9TNK as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (77%), followed by 20 m (23%). Most decodes (97%) fell within the six-hour window 07:00-13:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -7 dB.

Overview

90
Messages attributed
5
UTC dates decoded
13
Active 15-min windows
-7 dB
Estimated median S/N

Bands

40m · 69 20m · 21
First attributed message: 2026-07-05
Last attributed message: 2026-09-29 09:20 UTC

Observed FT8 message patterns

Attributed sample
90 messages
Active dates
5 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-13 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 57.

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 SP9TNK 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 SP9TNK

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 · 35 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
208 km (approx.)
Last such locator decoded
2026-09-29 09:20 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 UTCBandSP9TNK S/NCounterpartCounterpart S/NMsgsCapture
09-29 09:22 40m - / - 9A3AUH -2 / - 12 Partial capture
09-27 07:49 40m - / - SP1ZMO -10 / - 5 Partial capture
09-27 07:40 40m -8 / -4 SP2EOE +4 / - 3 ✓ Closing observed
09-25 07:49 40m -6 / -7 SP5EXA +11 / - 6 ✓ Full exchange observed
09-25 07:23 40m -6 / -3 DJ0MAB -5 / 0 5 ✓ Full exchange observed
09-25 07:04 40m +4 / - ON8WR - / -18 2 ✓ Closing fragment
09-25 07:02 40m -1 / - OH3OJ - / -10 2 ✓ Closing fragment
09-25 06:59 40m -7 / - F1IQH -12 / -7 5 ✓ Closing observed
09-25 06:59 40m -8 / -5 F4BYA +1 / -10 5 ✓ Full exchange observed
09-25 06:53 40m -19 / -4 SQ8V -6 / - 5 ✓ Full exchange observed
09-23 12:09 40m -8 / -7 SP4GDW -16 / +8 4 ✓ Full exchange observed
09-23 12:02 40m -2 / -6 DG3YEV 0 / - 5 ✓ Full exchange observed
09-23 11:58 40m -3 / - DK4FH -3 / +9 5 ✓ Full exchange observed
09-23 11:53 40m -2 / - SP9BBA - / -12 3 ✓ Closing fragment
09-23 11:50 40m -6 / +10 SQ8DIO 0 / - 5 ✓ Full exchange observed
09-23 11:44 40m -12 / -1 SP9WAZ -9 / -12 5 ✓ Full exchange observed
09-23 11:43 40m -13 / +3 DL9KM -14 / -1 4 ✓ Full exchange observed
09-23 11:40 40m -12 / +4 HA7TM +3 / - 5 ✓ Full exchange observed
09-23 11:38 40m -10 / - SH5RJX - / -6 2 ✓ Closing fragment
09-23 11:37 40m -11 / - IU5HIU - / -17 2 ✓ Closing fragment
09-23 11:35 40m -12 / +1 OH3MB -20 / -2 4 ✓ Full exchange observed
09-23 11:35 40m -12 / -6 DL6CMF -15 / +9 7 ✓ Full exchange observed
09-23 11:08 40m -4 / +10 SP8NFH -4 / +10 5 ✓ Full exchange observed
09-23 11:06 40m -6 / -8 S56LKP -16 / +7 5 ✓ Full exchange observed
09-23 11:04 40m -10 / -3 SN100PKP -9 / -1 3 Partial capture
09-23 11:01 40m -7 / - HF100PKP - / - 3 Partial capture
08-31 09:03 20m - / +10 2E0NBL -3 / - 3 Partial capture
08-28 09:04 20m - / -20 UA6AOP -6 / - 3 ✓ Closing fragment
08-28 09:02 20m - / -7 OE3EHS +8 / - 5 ✓ Closing fragment
08-28 08:42 20m - / -6 OE9NET -10 / - 2 ✓ Closing fragment
08-28 08:39 20m - / -11 PD2XX +4 / - 2 ✓ Closing fragment
08-28 08:37 20m - / 0 EA1FMJ +1 / - 2 Partial capture
08-27 08:20 20m - / - LZ7VV +6 / - 2 ✓ Closing fragment
08-16 10:29 20m - / -3 DL9KM -6 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
075130 -11 2391  SP9TNK SP1ZMO JO73
091900 -11 1414  SP9TNK HF100PKP +02
092045 -17 2165  CQ SP9TNK JO90
092230  -4 2525  SP9TNK 9A3AUH JN75 (x12)
20m 
UTC    dB Audio  Message
084000  +3 1820  SP9TNK PD2XX RR73
084230  -9  980  SP9TNK OE9NET -06 (x2)
084615  -3 1785  SP9TNK YT1VDA RR73
090245  +7 1785  SP9TNK OE3EHS JN87 (x4)
090445  -8 1216  SP9TNK UA6AOP KN95
090445  +5 1817  SP9TNK OE3EHS 73
090515  -4 1216  SP9TNK UA6AOP R-20 (x2)
090300  -3 1186  SP9TNK 2E0NBL +10 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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