S50BH — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving S50BH, decoded by SO8OO in southeastern Poland. 44 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-28 and 2026-09-20.
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 44 FT8 messages attributed to S50BH as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (91%), followed by 40 m (9%). Several six-hour UTC windows tied for the largest share (91%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (68%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-09-20 14:32 UTC
Observed FT8 message patterns
- Attributed sample
- 44 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -13 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 30.
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 S50BH 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 S50BH
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
- JN76 · 33 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 631 km (approx.)
- Last such locator decoded
- 2026-09-20 14:31 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 | S50BH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 14:31 | 40m | -9 / -10 | YO3GJE | -16 / -13 | 5 | ✓ Full exchange observed |
| 07-18 20:07 | 20m | +2 / - | TN8GD | - / - | 2 | Partial capture |
| 07-18 20:01 | 20m | +1 / - | EX8ABR | - / - | 5 | Partial capture |
| 07-18 19:57 | 20m | +11 / - | XV9T | - / - | 4 | Partial capture |
| 07-11 19:32 | 20m | -4 / - | BA3QIQ | - / -16 | 2 | ✓ Closing fragment |
| 07-11 19:28 | 20m | -7 / - | RN6MA | - / - | 2 | ✓ Closing fragment |
| 07-11 19:27 | 20m | -4 / - | YH7OA | - / - | 2 | Partial capture |
| 07-11 19:21 | 20m | -8 / - | BH2WTV | - / - | 4 | Partial capture |
| 06-28 18:32 | 20m | -4 / -4 | OE3PBS | -14 / -3 | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 142915 -13 2280 S50BH RT4A/P -12 142930 -12 2204 II4IANT S50BH R-13 143100 -13 1894 YO3GJE S50BH JN76 143115 -18 1894 S50BH YO3GJE -10 143130 -6 1894 YO3GJE S50BH R-13 143145 -15 1894 S50BH YO3GJE RR73 143200 -9 1894 YO3GJE S50BH 73
UTC dB Audio Message 193300 -2 2218 BA3QIQ S50BH RR73 193330 -8 2218 CQ S50BH JN76 (x3) 195730 +13 374 XV9T S50BH JN76 (x4) 200145 +4 1900 EX8ABR S50BH JN76 (x5) 200715 +5 971 TN8GD S50BH JN76 (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.
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