SP9XU — 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 SP9XU, decoded by SO8OO in southeastern Poland. 204 FT8 messages attributed to this token as transmitter, on 60m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-10-12.

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 204 FT8 messages attributed to SP9XU as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (95%), followed by 60 m (5%). Most decodes (74%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -15 dB.

Overview

204
Messages attributed
6
UTC dates decoded
16
Active 15-min windows
-15 dB
Estimated median S/N

Bands

60m · 11 40m · 193
First attributed message: 2026-06-15
Last attributed message: 2026-10-12 13:46 UTC

Observed FT8 message patterns

Attributed sample
204 messages
Active dates
6 UTC dates
Estimated median S/N
-15 dB
Estimated 10th-90th percentile
-20 to -9 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 88, moderate (-15 to -9 dB) 101, strong (≥ -8 dB) 15.

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 SP9XU 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 SP9XU

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 · 127 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
208 km (approx.)
Last such locator decoded
2026-10-12 13:46 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 UTCBandSP9XU S/NCounterpartCounterpart S/NMsgsCapture
10-12 13:41 40m -14 / - DJ9FBA -19 / -10 4 Partial capture
10-12 13:36 40m -15 / - PD1DVL - / -12 2 ✓ Closing fragment
10-12 13:32 40m -16 / - PA0MUS - / -19 5 Partial capture
10-12 13:31 40m -20 / - DL6BCL - / -12 2 ✓ Closing fragment
10-12 13:27 40m -14 / +3 OM8AMF -5 / +4 5 ✓ Full exchange observed
10-12 13:22 40m -16 / -10 UA3QNA -6 / 0 6 ✓ Full exchange observed
10-12 13:21 40m -16 / - IU8RHZ - / -19 2 ✓ Closing fragment
10-12 13:17 40m -17 / - PD9OH - / -6 2 ✓ Closing fragment
10-12 13:15 40m -20 / -21 IZ8DBJ -24 / - 3 ✓ Closing observed
10-03 18:11 60m -11 / -5 SP9DWT -1 / +6 5 ✓ Full exchange observed
10-03 18:08 60m -13 / -19 F4HSB -18 / -20 10 Partial capture
10-03 18:06 60m -13 / -12 LB5WB -4 / -1 5 ✓ Full exchange observed
10-03 18:03 60m - / -16 DK1XAM -9 / - 7 ✓ Closing fragment
10-03 18:02 60m - / - F4LJG -8 / - 2 Partial capture
10-03 18:02 60m - / -12 LZ2VQ -3 / - 3 ✓ Closing fragment
10-03 18:01 60m -6 / -16 DL5JMN +12 / -8 3 Partial capture
09-27 12:49 40m -16 / -11 OZ9FF -11 / +2 4 ✓ Full exchange observed
09-26 18:17 40m -14 / -16 DJ7BU -14 / -10 3 Partial capture
09-26 18:11 40m -16 / -8 E75D -12 / 0 3 ✓ Full exchange observed
09-26 18:10 40m -21 / - ON4CAD -9 / -11 9 Partial capture
09-26 18:05 40m -14 / - UT3RO -12 / 0 3 Partial capture
09-26 18:05 40m -19 / - IU4PPL -15 / -6 4 ✓ Closing observed
09-26 18:01 40m -18 / -19 SP7MOC -10 / -1 10 ✓ Full exchange observed
09-26 17:54 40m -13 / -11 SP4WSL -10 / - 6 ✓ Closing observed
09-26 17:51 40m -19 / -7 3Z0L -2 / 0 5 ✓ Full exchange observed
09-26 17:48 40m -17 / -4 DL9KM -7 / -5 4 ✓ Full exchange observed
09-26 17:46 40m -11 / -12 LY4Q -10 / -7 9 ✓ Full exchange observed
08-24 16:09 20m - / -17 R1QD -4 / - 2 Partial capture
08-24 16:02 20m - / +6 PD0PWH -6 / - 5 Partial capture
08-24 15:56 20m - / -5 DF5DY +4 / - 2 Partial capture
08-24 15:56 20m - / -6 DL4ZF -1 / - 10 ✓ Closing fragment
08-24 15:54 20m - / - EA3JEZ -2 / - 5 Partial capture
08-24 15:44 20m - / -12 JA5SUD +1 / - 3 Partial capture
08-24 15:26 20m - / -11 UA4WJ -8 / - 3 ✓ Closing fragment
08-24 15:14 20m - / -8 UN7PNF -3 / - 3 ✓ Closing fragment
08-24 15:02 20m - / -14 PD0HLA -17 / - 4 Partial capture
08-24 14:58 20m - / -3 G7EVY -5 / - 3 Partial capture
08-24 14:55 20m - / -19 M0PEL -8 / - 2 ✓ Closing fragment
08-24 14:52 20m - / -10 TA3F -13 / - 2 Partial capture
08-24 14:48 20m - / -8 M3FGR -13 / - 5 Partial capture
08-24 14:43 20m - / - CT7AXN -6 / - 2 Partial capture
08-24 14:43 20m - / +1 DL7FE -5 / - 6 ✓ Closing fragment
08-24 14:40 20m - / - HB9HWO -4 / - 4 Partial capture
08-24 14:34 20m - / - EA2EED +4 / - 7 Partial capture
08-24 14:33 20m - / -17 PA2AMJ -4 / - 2 ✓ Closing fragment
08-24 14:29 20m - / - M0CKX -2 / - 4 Partial capture
08-23 01:38 20m - / -8 F1PBZ +7 / - 2 ✓ Closing fragment
08-23 01:32 20m - / +1 DL1VCA +3 / - 4 ✓ Closing fragment
08-23 01:14 20m - / -3 W4WIN +3 / - 3 Partial capture
08-23 01:11 20m - / -23 VE3NVK -16 / - 6 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
134000 -15 1701  CQ SP9XU JO90 (x3)
134115 -19 1700  SP9XU DJ9FBA JN39
134130 -15 1700  DJ9FBA SP9XU -10 (x3)
134300 -15 1701  CQ SP9XU JO90 (x7)
134945 -24 1700  SP9XU DG1DPN JN67
60m 
UTC    dB Audio  Message
180830 -15  845  F4HSB SP9XU -20
180845 -19 1982  SP9XU F4HSB JN37
180900 -14  845  F4HSB SP9XU -20
180915 -15 1982  SP9XU F4HSB R-19
180930 -12  845  F4HSB SP9XU -20
180945 -17 1982  SP9XU F4HSB R-19
181000 -12  845  F4HSB SP9XU -20
181015 -18 1982  SP9XU F4HSB R-19 (x2)
181100 -11  842  CQ SP9XU JO90
181115  -2 1168  SP9XU SP9DWT JN99
181130 -10  842  SP9DWT SP9XU +06
181145  +0 1168  SP9XU SP9DWT R-05
181200 -12  842  SP9DWT SP9XU RR73
181215  -1 1168  SP9XU SP9DWT 73
20m 
UTC    dB Audio  Message
155800  -3 1438  SP9XU DL4ZF R-07 (x6)
160130  -4 1438  SP9XU TA2ED -08
160230  -6 1437  SP9XU PD0PWH JO21 (x5)
160900  -5 1541  SP9XU R1QD -17 (x2)
161400 -18 1491  SP9XU R4CAU LO31
10m 
UTC    dB Audio  Message
164330 -17 1975  SP9XU YO9PH -01 (x2)
164430 -13 1043  SP9XU 9A4ZM JN86

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee