SP5BMU — 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: KO02

Receiver-side FT8 activity involving SP5BMU, decoded by SO8OO in southeastern Poland. 383 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-08-30 and 2026-09-12.

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 383 FT8 messages attributed to SP5BMU 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 (43%), followed by 80 m (38%) and 160 m (15%). Several six-hour UTC windows tied for the largest share (59%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (94%); the estimated median was +16 dB.

Overview

383
Messages attributed
7
UTC dates decoded
49
Active 15-min windows
+16 dB
Estimated median S/N

Bands

First attributed message: 2026-08-30
Last attributed message: 2026-09-12 20:35 UTC

Observed FT8 message patterns

Attributed sample
383 messages
Active dates
7 UTC dates
Estimated median S/N
+16 dB
Estimated 10th-90th percentile
-5 to +23 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 360.

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 SP5BMU

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
KO02 · 55 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
290 km (approx.)
Last such locator decoded
2026-09-09 20:28 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 UTCBandSP5BMU S/NCounterpartCounterpart S/NMsgsCapture
10-23 20:36 40m - / +2 CT9/DF7EE 0 / - 2 Partial capture
09-12 20:38 160m - / - OK2USM -6 / - 2 Partial capture
09-12 20:38 160m - / - OE3OOG +1 / - 2 Partial capture
09-12 20:36 160m - / -8 OK1DXR +4 / - 5 ✓ Closing fragment
09-12 20:32 160m -4 / - HF100PKP - / +2 6 Partial capture
09-12 19:23 80m +30 / - SN100PKP - / -1 2 Partial capture
09-11 20:50 80m +14 / - SP9TBT +10 / 0 3 ✓ Closing observed
09-11 20:42 160m -4 / - HF100PKP - / -4 3 Partial capture
09-11 20:39 160m -3 / - <...> - / +3 5 Partial capture
09-11 13:27 40m +17 / - SQ100PKP - / -10 23 Partial capture
09-11 13:24 40m +17 / - SP100PKP - / -16 6 Partial capture
09-11 12:14 40m +14 / - 3Z100PKP - / -14 12 Partial capture
09-11 12:04 40m +2 / - SP100PKP - / -4 3 Partial capture
09-11 12:00 40m +1 / - DF9HT/P - / -1 2 Partial capture
09-11 04:46 80m +20 / - SQ100PKP - / -2 2 Partial capture
09-11 04:42 80m +32 / - SP100PKP - / +5 2 Partial capture
09-10 21:11 160m 0 / - DF3JO - / -10 11 Partial capture
09-10 20:35 80m +24 / -3 F5RRS +2 / -14 7 ✓ Full exchange observed
09-10 20:33 80m +22 / - HF100PKP - / -17 2 Partial capture
09-10 20:22 160m +1 / - SQ3LMR - / -5 3 Partial capture
09-10 20:20 160m -2 / - OM1AN - / -17 4 Partial capture
09-10 20:13 80m +24 / - HF100PKP +19 / -17 6 Partial capture
09-10 20:10 80m +23 / - Z62NS - / -11 5 Partial capture
09-10 14:36 40m - / -9 DG7NFX -9 / - 2 ✓ Closing fragment
09-10 07:07 40m -12 / - SN100PKP - / -17 2 Partial capture
09-09 20:56 80m - / - DD7EE +2 / - 2 Partial capture
09-09 20:54 80m +18 / -2 YO4NF +15 / -14 5 ✓ Full exchange observed
09-09 20:51 80m +18 / - UA1CEI/3 - / -17 4 Partial capture
09-09 20:44 160m -2 / -13 4U1A -2 / -16 8 ✓ Full exchange observed
09-09 20:43 160m -7 / - SQ9ACH - / -8 2 Partial capture
09-09 20:36 80m - / - HF100PKP +14 / - 8 Partial capture
09-09 20:35 80m +18 / - UA1CEI/3 - / -16 8 Partial capture
09-09 20:23 160m -1 / - SP100PKP - / -4 11 Partial capture
09-09 18:34 80m +20 / - SN100PKP - / -5 2 Partial capture
09-09 18:00 80m +24 / - SN100PKP - / -11 12 Partial capture
09-09 17:58 80m +26 / -2 SP100PKP -1 / -11 3 Partial capture
09-09 17:42 80m +20 / - SN100PKP - / -15 14 Partial capture
09-09 17:40 80m - / - F5RRS -7 / - 4 Partial capture
09-09 17:40 80m +22 / - SP100PKP +9 / -7 4 ✓ Closing observed
09-09 17:36 80m +19 / +2 UA1CEI/3 +10 / -11 7 Partial capture
09-09 15:22 40m +18 / - SN100PKP - / -11 31 Partial capture
09-09 15:00 40m +17 / - SN100PKP - / -10 11 Partial capture
09-09 14:57 40m +17 / - HF100PKP - / -10 7 Partial capture
09-09 14:44 40m +14 / - SN100PKP - / -6 7 Partial capture
09-09 14:30 40m +14 / - DL1EJD/P - / -7 27 Partial capture
09-09 14:26 40m +16 / - SN100PKP - / -8 2 Partial capture
09-09 14:25 40m +14 / - WB8YJF/4 - / -10 2 Partial capture
09-09 06:25 40m - / - DJ0MAB 0 / - 4 Partial capture
09-09 05:02 80m +24 / - SO100PKP - / -15 2 Partial capture
09-09 04:57 80m +21 / - Z62NS - / -16 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
133245 +17 2698  SQ100PKP SP5BMU -03 (x13)
203630  +0  620  SP5BMU CT9/DF7EE +02 (x2)
160m
UTC    dB Audio  Message
203315  -5 2655  HF100PKP SP5BMU +02 (x5)
203630  +3 1295  SP5BMU OK1DXR JO60 (x4)
203800  +3  936  SP5BMU OE3OOG JN87
203830 +11 2735  SP5BMU UA3ZUX KO90
203830  -5 2655  SP5BMU OK2USM JN89
203830  +7 1295  SP5BMU OK1DXR 73
203830  -1  936  SP5BMU OE3OOG JN87
203900  -7 2655  SP5BMU OK2USM JN89
80m
UTC    dB Audio  Message
203645 +24 2662  F5RRS SP5BMU RR73
203700  +4  555  SP5BMU F5RRS 73
044245 +32 2663  SP100PKP SP5BMU +05 (x2)
044330 +16 2107  SP5BMU SQ100PKP R+24
044400  +5 2107  SP5BMU RR73; SP1TJ <...> +08
044600 +20 2663  SQ100PKP SP5BMU -02 (x2)
044645  +6 1366  SP5BMU HF100PKP R-01
205030  +7 2662  SP9TBT SP5BMU +00 (x2)
205115 +10 1417  SP5BMU SP9TBT RR73
192245 +23 2662  3Z100PKP SP5BMU -01
192315 +28 2662  <SN100PKP> SP5BMU -01 (x2)
20m
UTC    dB Audio  Message
202845  -9 2026  RI1FJL SP5BMU R-26 (x6)
210945 -24 2026  TJ1GD SP5BMU KO02 (x2)
211600  -1  317  SP5BMU PY1KZ -19 (x2)
212100  -4  728  SP5BMU W1AW/2 +06
212200  +4 1952  SP5BMU W4DXM -10
212400  +4 1952  SP5BMU RR73; PD2V <...> -08
212430  +0  882  SP5BMU W1LBW FN31 (x2)

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

27 CW reception events in the last 30 days.

  • 40m: 5 events; last heard 2026-11-07 15:10 UTC
  • 80m: 22 events; last heard 2026-11-07 15:29 UTC

Latest CW receptions

UTCBandkHzS/N · 500 HzWPMListen
2026-11-07 15:29:1580m3539.99323.9 dB23.9WebSDR ↗
2026-11-07 15:23:4280m3539.99330.2 dB24.8WebSDR ↗
2026-11-07 15:10:2940m7032.96913.9 dB23.9WebSDR ↗
2026-11-07 14:27:0240m7035.03910.4 dB22.5WebSDR ↗
2026-10-16 16:57:5180m3542.46325.1 dB—WebSDR ↗
2026-10-16 16:55:1380m3542.46320.6 dB—WebSDR ↗
2026-10-16 16:42:5480m3540.00321.7 dB—WebSDR ↗
2026-10-16 16:41:5380m3540.00319.8 dB26.8WebSDR ↗
2026-10-16 16:37:0880m3540.00315.5 dB—WebSDR ↗
2026-10-16 16:35:4880m3540.00324.1 dB—WebSDR ↗
2026-10-16 16:10:1480m3539.9929.6 dB27.5WebSDR ↗
2026-10-16 15:42:4940m7034.03811.3 dB—WebSDR ↗
2026-10-16 15:19:0340m7034.03911.2 dB—WebSDR ↗
2026-10-16 15:16:0840m7034.03810.7 dB—WebSDR ↗
2026-10-10 15:49:4980m3544.01221.9 dB—WebSDR ↗
2026-10-10 15:48:4880m3544.01325.1 dB—WebSDR ↗
2026-10-10 15:45:5680m3541.01320.3 dB—WebSDR ↗
2026-10-10 06:56:3980m3540.00319.4 dB—WebSDR ↗
2026-10-10 06:49:5680m3540.00317 dB—WebSDR ↗
2026-10-10 06:46:1780m3540.00316.1 dB—WebSDR ↗
CW reception history

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