S51WB — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving S51WB, decoded by SO8OO in southeastern Poland. 459 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 53 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-16.
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 459 FT8 messages attributed to S51WB as the transmitting token by decoded message structure across 53 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (46%), followed by 60 m (34%) and 20 m (14%). Several six-hour UTC windows tied for the largest share (93%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-10-16 04:46 UTC
Observed FT8 message patterns
- Attributed sample
- 459 messages
- Active dates
- 53 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -15 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 42, moderate (-15 to -9 dB) 220, strong (≥ -8 dB) 197.
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 S51WB 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 S51WB
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
- JN75 · 280 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 708 km (approx.)
- Last such locator decoded
- 2026-10-16 04:46 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 UTC | Band | S51WB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-16 04:43 | 80m | -11 / - | YO2LDU | - / - | 6 | Partial capture |
| 10-16 04:39 | 60m | - / - | F5RMK | -9 / - | 2 | ✓ Closing fragment |
| 10-15 15:34 | 40m | - / -14 | ER1XYZ | -9 / - | 2 | Partial capture |
| 10-15 15:30 | 60m | -4 / - | 4X4DK | - / - | 2 | Partial capture |
| 10-15 13:17 | 40m | - / +4 | 9A7BB | -8 / - | 4 | Partial capture |
| 10-15 13:10 | 40m | - / +9 | Z61DX | -4 / - | 2 | ✓ Closing fragment |
| 10-15 05:23 | 60m | -9 / - | IZ1RFL | - / - | 12 | Partial capture |
| 10-15 05:20 | 60m | -10 / - | G0ABI | - / -4 | 6 | ✓ Closing fragment |
| 10-15 05:18 | 60m | -12 / 0 | IK5ZPV | -5 / +7 | 6 | ✓ Full exchange observed |
| 10-15 05:17 | 60m | -8 / - | IK1WGX | -5 / +10 | 4 | ✓ Full exchange observed |
| 10-13 06:58 | 60m | - / -13 | SP9JZU | -10 / - | 2 | ✓ Closing fragment |
| 10-10 05:59 | 40m | - / -20 | UW8SM | +2 / - | 5 | ✓ Closing fragment |
| 10-10 05:50 | 40m | -10 / -7 | IK2PZX | -9 / -14 | 6 | ✓ Full exchange observed |
| 10-08 05:30 | 40m | -18 / - | OA4ENG | - / - | 2 | Partial capture |
| 10-08 05:27 | 40m | -14 / - | C5R | - / - | 4 | Partial capture |
| 10-08 05:11 | 60m | - / - | S57MPU | +7 / - | 3 | Partial capture |
| 10-08 05:10 | 60m | -4 / +3 | F4HQL | +6 / 0 | 4 | ✓ Full exchange observed |
| 10-08 05:09 | 60m | -3 / -2 | DL2KBX | +7 / -1 | 5 | ✓ Full exchange observed |
| 10-08 05:07 | 60m | -2 / 0 | F4LRA | -12 / 0 | 5 | ✓ Full exchange observed |
| 10-08 05:06 | 60m | -7 / -8 | SV9BMG | -20 / -8 | 4 | ✓ Full exchange observed |
| 10-08 04:56 | 40m | - / -7 | EA7NK | -11 / - | 2 | Partial capture |
| 10-07 05:32 | 40m | -9 / - | K0HB | - / - | 2 | Partial capture |
| 10-07 05:23 | 40m | -3 / - | G3TKT | - / - | 2 | Partial capture |
| 10-07 05:22 | 40m | -9 / - | OM3WFH | - / -2 | 2 | ✓ Closing fragment |
| 10-07 05:14 | 40m | -10 / - | KA1MXL | - / -16 | 4 | Partial capture |
| 10-07 05:11 | 40m | -10 / - | WX7P | - / - | 5 | Partial capture |
| 10-06 04:59 | 40m | - / -18 | YO4SX | -5 / - | 3 | Partial capture |
| 10-06 04:39 | 40m | - / -10 | GJ0KYZ | -10 / - | 3 | ✓ Closing fragment |
| 10-06 04:24 | 60m | - / - | F4IIX | -4 / - | 2 | ✓ Closing fragment |
| 10-06 04:20 | 40m | - / - | EA7NK | -14 / - | 2 | Partial capture |
| 10-06 04:05 | 40m | - / +7 | EA5FD | +3 / - | 2 | ✓ Closing fragment |
| 10-06 03:54 | 40m | - / -16 | F4DVP | -15 / - | 4 | ✓ Closing fragment |
| 10-04 08:06 | 40m | - / +7 | DL3NAA | -14 / - | 2 | ✓ Closing fragment |
| 10-04 07:56 | 40m | -6 / +4 | DL1SP | -4 / - | 4 | Partial capture |
| 10-04 07:50 | 40m | -6 / - | 9A5MP | - / - | 2 | Partial capture |
| 10-02 05:20 | 60m | - / -3 | S56A | +5 / - | 4 | ✓ Closing fragment |
| 10-02 05:19 | 60m | - / +3 | F5ILV | -4 / - | 2 | Partial capture |
| 10-02 05:15 | 60m | - / -11 | F5OZC | -7 / - | 2 | ✓ Closing fragment |
| 10-02 05:13 | 60m | - / +9 | F4BPO | +1 / - | 3 | ✓ Closing fragment |
| 10-01 06:33 | 60m | -11 / - | HB9ACA | -14 / -4 | 6 | ✓ Full exchange observed |
| 10-01 06:33 | 60m | -10 / -1 | IK4CBO | -15 / - | 3 | Partial capture |
| 09-30 04:38 | 40m | -17 / - | LZ3AI | - / -10 | 3 | ✓ Closing fragment |
| 09-30 04:33 | 40m | - / +4 | GU4WRP | -15 / - | 2 | ✓ Closing fragment |
| 09-30 04:29 | 40m | - / -19 | UT5MB | -2 / - | 4 | ✓ Closing fragment |
| 09-30 04:17 | 60m | -4 / 0 | F5OWT | 0 / -10 | 4 | ✓ Full exchange observed |
| 09-29 06:56 | 40m | -9 / -15 | HA1BF | -6 / - | 5 | ✓ Closing observed |
| 09-29 06:49 | 60m | -9 / -8 | F5LMJ | -10 / - | 4 | ✓ Closing observed |
| 09-29 06:45 | 60m | -6 / -6 | PA4CC | +1 / -7 | 7 | ✓ Full exchange observed |
| 09-29 06:44 | 60m | -8 / - | F4LOB | -8 / - | 3 | ✓ Closing observed |
| 09-29 06:43 | 60m | -7 / -2 | F5RMK | -16 / -8 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 051415 -8 368 E74K S51WB JN75 (x3) 055700 -11 2600 SN40KZE S51WB JN75 055745 -13 2189 S51WB HB10GBT -12 055800 -16 2600 SN40KZE S51WB R-05 055900 -8 2600 F5USK S51WB JN75 (x2) 044300 -13 282 G6PWS S51WB JN75 044330 -18 283 YO2LDU S51WB JN75 (x6)
UTC dB Audio Message 052345 -8 243 IZ1RFL S51WB JN75 (x11) 153045 -4 421 4X4DK S51WB JN75 (x2) 043930 -8 2038 S51WB F5RMK +13 (x2)
UTC dB Audio Message 055930 +1 630 S51WB UW8SM KN28 (x4) 061330 -7 1429 S51WB RR73; IZ7FLN <...> -06 063845 -14 1540 S51WB OM0RX JN88 131030 -2 726 S51WB Z61DX +09 (x2) 131700 -12 2159 S51WB 9A7BB +04 (x4) 153315 -6 426 HA1BF S51WB JN75 153430 -9 1859 S51WB ER1XYZ -14 (x2)
UTC dB Audio Message 055130 -10 2292 S51WB KB3CCJ -10 050545 -16 1967 S51WB MM0JTV RR73 050815 -2 1386 S51WB SV5BYP -06 (x5) 052830 -9 2676 S51WB VK2ZR -01 052830 -20 1989 S51WB 9H4JX -14 052900 -8 2676 S51WB VK2ZR RR73 053230 -9 2734 S51WB ZL3GAV -08 (x2) 053330 +6 1183 S51WB UB4CJS -18 (x2) 053600 -1 1989 S51WB RR73; OK1IG <...> +00
UTC dB Audio Message 102100 -16 987 S51WB PE9JAN R-05 165615 -24 1558 S51WB A71XX +00
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.
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