SP9UH — 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 SP9UH, decoded by SO8OO in southeastern Poland. 1,784 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 74 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-03.

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 1,784 FT8 messages attributed to SP9UH as the transmitting token by decoded message structure across 74 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (63%), followed by 60 m (29%) and 40 m (8%). Most decodes (68%) fell within the six-hour window 20:00-02:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (90%); the estimated median was +6 dB.

Overview

1,784
Messages attributed
74
UTC dates decoded
222
Active 15-min windows
+6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-11-03 22:15 UTC

Observed FT8 message patterns

Attributed sample
1,784 messages
Active dates
74 UTC dates
Estimated median S/N
+6 dB
Estimated 10th-90th percentile
-8 to +14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 131, strong (≥ -8 dB) 1,614.

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.

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 SP9UH

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 · 1,112 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
208 km (approx.)
Last such locator decoded
2026-11-03 22:15 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 UTCBandSP9UH S/NCounterpartCounterpart S/NMsgsCapture
11-06 22:25 60m - / -11 CT1DIZ -10 / - 2 ✓ Closing fragment
11-06 21:52 60m - / -25 V26OC -14 / - 2 ✓ Closing fragment
11-03 22:14 80m +4 / - OD5ZZ - / - 2 Partial capture
11-03 22:02 80m +6 / - EX7DY - / - 3 Partial capture
11-03 21:51 80m 0 / - CT1BWU - / - 4 Partial capture
11-03 21:49 80m -2 / - UR5WDE - / -8 2 ✓ Closing fragment
11-03 21:44 80m +11 / - UX0CZ -12 / -10 5 Partial capture
11-03 21:41 80m +6 / -1 UR7EU -5 / +1 7 ✓ Full exchange observed
11-02 22:21 60m - / -13 OD5VB -14 / - 3 ✓ Closing fragment
11-02 21:50 60m - / - DJ1OJ +2 / - 2 Partial capture
11-02 21:46 60m - / -1 ER1CW -22 / - 3 ✓ Closing fragment
11-02 21:35 60m - / -17 DJ1OJ +5 / - 3 Partial capture
10-29 22:07 40m - / -14 UN0GY -10 / - 2 ✓ Closing fragment
10-29 05:55 60m 0 / - F4HSB -23 / -1 3 ✓ Closing observed
10-29 05:55 60m -1 / - SV1OZ -12 / -4 5 Partial capture
10-29 05:54 60m 0 / -11 DL9ATW -6 / - 4 ✓ Closing observed
10-29 05:52 60m -4 / - TK/DH7SB - / -6 2 Partial capture
10-29 05:46 60m -6 / - LU1WFU - / - 4 Partial capture
10-29 05:42 60m -7 / - LU1WFU - / - 4 Partial capture
10-29 05:33 60m -6 / - LZ1ZF -12 / +2 3 ✓ Closing observed
10-29 05:30 60m - / 0 IQ0AAI -10 / - 2 ✓ Closing fragment
10-28 22:09 80m +10 / - SN4K -12 / -11 3 ✓ Closing observed
10-28 22:03 80m -10 / - OD5ZZ - / - 3 Partial capture
10-28 21:58 80m +9 / +2 HF50HSP -5 / -8 2 Partial capture
10-28 21:56 80m +8 / - DO1OAS -6 / -15 3 ✓ Closing observed
10-28 21:50 80m +4 / - UA3VVA -7 / -14 3 ✓ Closing observed
10-28 21:48 80m +5 / - DA6OOM - / -25 4 Partial capture
10-28 21:46 80m +1 / -21 IK8OAM -9 / -11 4 ✓ Full exchange observed
10-28 21:44 80m -3 / -15 S50XX -3 / -10 5 ✓ Full exchange observed
10-28 21:40 80m -10 / - IQ0AAI - / - 2 Partial capture
10-26 20:22 60m - / +3 4X5JK -18 / - 2 ✓ Closing fragment
10-25 21:39 60m - / -3 G0ABI -5 / - 3 ✓ Closing fragment
10-25 20:36 60m - / -5 GM2OT -16 / - 2 Partial capture
10-25 20:35 60m - / -2 S58X -8 / - 2 ✓ Closing fragment
10-21 04:40 60m - / 0 F4GAJ -14 / - 2 ✓ Closing fragment
10-19 04:37 60m - / +1 PA3GDL +8 / - 3 ✓ Closing fragment
10-19 04:32 60m - / -4 EW6DO -10 / - 2 ✓ Closing fragment
10-19 04:30 60m - / -6 EB1LA -5 / - 3 ✓ Closing fragment
10-19 04:08 80m +10 / - C5R - / - 13 Partial capture
10-17 21:54 80m -3 / +5 DF5AH -6 / +10 8 ✓ Full exchange observed
10-17 21:48 80m -6 / -11 R2EN 0 / +4 3 ✓ Full exchange observed
10-17 21:44 80m +4 / - OL900LTV - / +7 3 Partial capture
10-17 21:42 80m +10 / - TA3GO - / - 2 Partial capture
10-17 21:39 80m +8 / -3 DO1OAS -5 / -16 8 ✓ Full exchange observed
10-17 21:38 80m +3 / -18 EI4JFB -18 / -21 5 ✓ Full exchange observed
10-17 21:32 80m +11 / - TA4SSK - / -22 8 Partial capture
10-17 21:28 80m +6 / - UN0GY - / - 5 Partial capture
10-17 21:25 80m +1 / -13 ER5DX +6 / -19 8 ✓ Full exchange observed
10-16 20:08 60m -19 / -11 ER1CW -10 / - 3 ✓ Closing observed
10-16 04:26 60m - / +7 HB9IOB -15 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m
UTC    dB Audio  Message
213645 +10 1082  SP9UH DJ1OJ JN58 (x2)
214615 -21 1687  SP9UH ER1CW KN47 (x3)
215015  +1 1082  SP9UH DJ1OJ JN58 (x2)
215600 -11  535  SP9UH IW2CAK 73
222115 -14 1157  SP9UH OD5VB -13 (x3)
215230 -15 2096  SP9UH V26OC -25 (x2)
222545 -10 1014  SP9UH CT1DIZ -11 (x2)
80m
UTC    dB Audio  Message
215215  -2 1013  CT1BWU SP9UH JO90 (x3)
215745  +2 1013  CQ SP9UH JO90 (x5)
220215 +11 1003  EX7DY SP9UH JO90 (x3)
220515 +10 1003  OD5ZZ SP9UH JO90 (x3)
222015 -19  866  SP9UH TK4TH -17
40m
UTC    dB Audio  Message
010915  +3 2491  SP9UH F1PBZ -14
010945 -13 2028  SP9UH RZ4FWA LO23
010945  +1 2491  SP9UH F1PBZ -14
011015 -14 2028  SP9UH RZ4FWA LO23
011015  -2 2491  SP9UH F1PBZ RR73
011045 -18 2028  SP9UH RZ4FWA LO23 (x2)
235545 -14  988  SP9UH G8FAT IO91 (x4)
215145  -3  639  SP9UH G8RZ IO84
220430  -4 1170  SP9UH GJ0KYZ RR73
220745 -12 2343  SP9UH UN0GY -14 (x2)
20m
UTC    dB Audio  Message
131515  +2  377  SP9UH OO0O JO11 (x12)

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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