S50B — 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 S50B, decoded by SO8OO in southeastern Poland. 274 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-11-05.
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 274 FT8 messages attributed to S50B as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (75%), followed by 40 m (12%) and 60 m (8%). Most decodes (99%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (93%); the estimated median was 0 dB.
Overview
Bands
Last attributed message: 2026-11-05 19:05 UTC
Observed FT8 message patterns
- Attributed sample
- 274 messages
- Active dates
- 21 UTC dates
- Estimated median S/N
- 0 dB
- Estimated 10th-90th percentile
- -8 to +8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 255.
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 S50B 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 S50B
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
- JN65 · 43 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 821 km (approx.)
- Last such locator decoded
- 2026-11-05 19:03 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 | S50B S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-05 19:05 | 40m | -6 / - | F6BHK | -6 / -19 | 4 | ✓ Closing observed |
| 11-05 19:03 | 40m | -2 / - | R2FEA | - / -17 | 2 | ✓ Closing fragment |
| 11-05 19:01 | 80m | - / -1 | DO9SAM | +4 / - | 2 | ✓ Closing fragment |
| 11-05 18:58 | 80m | -4 / - | EX7DY | - / -18 | 2 | Partial capture |
| 11-05 18:58 | 80m | - / -12 | SP5JMA | +8 / - | 4 | ✓ Closing fragment |
| 11-05 18:57 | 80m | -4 / - | EA1IOK | - / -10 | 2 | ✓ Closing fragment |
| 11-05 18:56 | 80m | - / +5 | DF4WQ | -4 / - | 3 | ✓ Closing fragment |
| 11-05 18:55 | 80m | -3 / -1 | DH9DR | +3 / 0 | 5 | ✓ Full exchange observed |
| 11-05 18:54 | 80m | 0 / +2 | DO5PY | 0 / -1 | 4 | ✓ Full exchange observed |
| 11-05 18:54 | 80m | - / - | UR7EU | +7 / - | 3 | Partial capture |
| 10-19 18:05 | 60m | 0 / - | F6FHZ | - / -18 | 2 | ✓ Closing fragment |
| 10-19 18:04 | 60m | +2 / 0 | ER3UA | -1 / -3 | 5 | ✓ Full exchange observed |
| 10-19 18:02 | 60m | +4 / - | F5RMK | -14 / -8 | 3 | ✓ Closing observed |
| 10-19 18:01 | 60m | +2 / - | SP2EWQ | +6 / -1 | 5 | ✓ Full exchange observed |
| 10-16 16:54 | 160m | -24 / - | OZ9GA | -18 / -16 | 3 | Partial capture |
| 10-13 15:48 | 40m | -4 / - | OZ5AGJ | - / -10 | 2 | ✓ Closing fragment |
| 10-07 18:07 | 160m | -9 / -13 | DC0GL | -8 / - | 4 | ✓ Closing observed |
| 09-23 18:04 | 160m | -12 / - | S79KW | - / -12 | 2 | Partial capture |
| 09-21 18:58 | 40m | - / +6 | TA7MMI | +1 / - | 2 | Partial capture |
| 09-21 18:54 | 40m | +6 / - | TA7MMI | - / -7 | 2 | Partial capture |
| 09-20 19:02 | 160m | -9 / -7 | DF0PDF | -3 / -9 | 2 | Partial capture |
| 09-20 19:01 | 160m | -5 / +4 | 9A4ZM | -2 / +4 | 5 | ✓ Full exchange observed |
| 09-20 19:01 | 160m | -8 / - | OK1DXR | +7 / +5 | 7 | ✓ Full exchange observed |
| 09-19 18:05 | 40m | +5 / -8 | R7MP | -9 / -8 | 3 | ✓ Full exchange observed |
| 09-19 18:05 | 40m | +8 / - | EH3ST | - / -9 | 2 | ✓ Closing fragment |
| 09-19 18:04 | 40m | - / -3 | ON1DGN | -11 / - | 4 | Partial capture |
| 09-19 18:04 | 40m | +6 / -8 | UC6D | +13 / -2 | 4 | ✓ Full exchange observed |
| 09-19 17:57 | 80m | -6 / -16 | HF5A | +10 / -2 | 7 | ✓ Full exchange observed |
| 09-19 17:57 | 80m | -8 / -16 | R5DT | +2 / -1 | 6 | ✓ Full exchange observed |
| 09-19 17:57 | 80m | -6 / - | R7CD | +1 / -3 | 6 | Partial capture |
| 09-12 20:03 | 40m | 0 / - | BD8FOD | - / -13 | 2 | Partial capture |
| 09-12 17:29 | 80m | -6 / - | ZS6BUN | - / -17 | 5 | Partial capture |
| 09-07 19:48 | 80m | +13 / - | ZS1J | - / -12 | 3 | Partial capture |
| 09-07 19:33 | 80m | +1 / - | ZS1J | - / -12 | 11 | ✓ Closing fragment |
| 09-05 20:37 | 80m | +3 / - | EU1AFX | - / -9 | 2 | ✓ Closing fragment |
| 09-05 20:35 | 80m | 0 / - | RV3SBS/P | - / -6 | 3 | ✓ Closing fragment |
| 09-05 20:34 | 80m | -2 / - | EU1AFX | - / -4 | 2 | Partial capture |
| 09-05 20:34 | 80m | - / +3 | OZ7SKB/A | 0 / - | 2 | Partial capture |
| 09-05 20:31 | 80m | - / - | EU1AFX | -2 / - | 2 | Partial capture |
| 09-05 20:31 | 80m | 0 / +2 | HF9D | +5 / -4 | 8 | ✓ Full exchange observed |
| 09-05 20:31 | 80m | +2 / +2 | DO2HC | -6 / -5 | 5 | ✓ Full exchange observed |
| 09-05 20:31 | 80m | +2 / -17 | PE1NPS | -14 / -5 | 5 | ✓ Full exchange observed |
| 09-05 20:29 | 80m | +4 / +3 | IQ4JO | 0 / 0 | 5 | ✓ Full exchange observed |
| 09-05 20:28 | 80m | -1 / - | OZ7SKB/A | +11 / - | 4 | ✓ Closing observed |
| 09-05 20:27 | 80m | -2 / - | RU3NCW | +4 / -4 | 4 | ✓ Closing observed |
| 09-04 20:18 | 80m | -2 / - | RI1FJL | - / -11 | 23 | Partial capture |
| 09-02 18:12 | 80m | -1 / - | ZS1J | - / -14 | 28 | Partial capture |
| 09-02 17:27 | 80m | +7 / - | BX4AQ | - / -11 | 3 | ✓ Closing fragment |
| 08-24 18:03 | 80m | +2 / - | ZS6WAB | - / -16 | 4 | ✓ Closing fragment |
| 08-24 17:58 | 80m | -4 / - | ZS6WAB | - / -16 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 185845 +3 2029 S50B TA7MMI R+06 (x2) 182315 -20 1985 3D2USU S50B -16 154730 -7 2091 CQ S50B JN65 154800 -5 2091 OZ5AGJ S50B -10 (x2) 190315 -3 2585 CQ S50B JN65 190345 -4 2585 R2FEA S50B -17 (x2) 190500 -5 2585 S50B F6BHK JN24 190515 -5 2585 F6BHK S50B -19 190530 -6 2585 S50B F6BHK JN24 190545 -7 2585 F6BHK S50B RR73 190700 -3 1340 S50B S57BTI JN75 190700 -9 1877 S50B F4FSY -08
UTC dB Audio Message 185545 -8 1788 DH9DR S50B RR73 185600 +0 1107 S50B DH9DR 73 185600 -4 2449 S50B DF4WQ JN39 (x3) 185715 -4 1788 EA1IOK S50B -10 (x2) 185800 +3 480 S50B SP5JMA KO02 185815 -8 1788 EX7DY S50B -18 185830 +12 480 S50B SP5JMA KO02 185845 +1 1788 EX7DY S50B -18 185930 +11 480 S50B SP5JMA R-12 (x2) 190130 +1 1788 S50B DO9SAM R-01 (x2)
UTC dB Audio Message 190300 +6 1295 S50B OK1DXR 73 190315 -11 1491 EA3JIJ S50B -15 190345 -9 1491 DF0PDF S50B R-09 180430 -14 308 S79KW S50B -12 (x2) 180700 -10 963 CQ S50B JN65 (x2) 180745 -7 2117 S50B DC0GL JO52 (x2) 180830 -9 963 DC0GL S50B RR73 180845 -8 2117 S50B DC0GL 73 165400 -19 1000 S50B OZ9GA JO46 165415 -24 2134 OZ9GA S50B -16 165430 -16 1000 S50B OZ9GA JO46 193915 -14 1768 CQ S50B JN65
UTC dB Audio Message 180215 +5 2529 S50B SP2EWQ R+13 180215 -14 1835 S50B F5RMK IN98 180230 -1 2529 SP2EWQ S50B RR73 180245 +5 2529 S50B SP2EWQ 73 180300 +5 2530 F5RMK S50B -08 (x2) 180400 +1 2530 CQ S50B JN65 180415 +8 2530 S50B SP2BDR JO83 180415 -2 2136 S50B ER3UA KN37 180430 +4 2529 ER3UA S50B -03 180445 +2 2136 S50B ER3UA R+00 180500 +1 2529 ER3UA S50B RR73 180515 -4 2136 S50B ER3UA 73 180530 +0 2529 F6FHZ S50B -18 (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
No CW receptions recorded for this callsign in the last 30 days.
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