S51TN — 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 S51TN, decoded by SO8OO in southeastern Poland. 1,466 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 46 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-10-29.
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 1,466 FT8 messages attributed to S51TN as the transmitting token by decoded message structure across 46 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (53%), followed by 40 m (34%) and 20 m (12%). Most decodes (56%) fell within the six-hour window 01:00-07:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was +4 dB.
Overview
Bands
Last attributed message: 2026-10-29 09:47 UTC
Observed FT8 message patterns
- Attributed sample
- 1,466 messages
- Active dates
- 46 UTC dates
- Estimated median S/N
- +4 dB
- Estimated 10th-90th percentile
- -8 to +14 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 120, strong (≥ -8 dB) 1,335.
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 S51TN 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 S51TN
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 · 866 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 631 km (approx.)
- Last such locator decoded
- 2026-10-29 09:47 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 | S51TN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-26 04:16 | 80m | +4 / -11 | DL1VVQ | -3 / - | 3 | ✓ Closing observed |
| 10-26 04:14 | 80m | +1 / -13 | ES2AJ | +10 / +4 | 7 | ✓ Full exchange observed |
| 10-26 04:04 | 80m | - / - | LZ1ZF | -10 / - | 2 | Partial capture |
| 10-26 04:00 | 80m | +10 / -7 | ON1JP | -16 / -9 | 4 | ✓ Full exchange observed |
| 10-26 03:52 | 80m | +8 / - | RD0L/P | - / - | 4 | Partial capture |
| 10-26 03:48 | 80m | +7 / - | NM1G | - / -9 | 5 | ✓ Closing fragment |
| 10-26 03:47 | 80m | -1 / -13 | UT5MB | +5 / +2 | 5 | ✓ Full exchange observed |
| 10-26 03:43 | 80m | +2 / -4 | DO5PY | -6 / +2 | 6 | ✓ Full exchange observed |
| 10-26 03:37 | 80m | +8 / -21 | W6NWS | -24 / -18 | 14 | Partial capture |
| 10-25 15:16 | 40m | -2 / - | LA7XJ | -18 / -6 | 4 | ✓ Closing observed |
| 10-22 16:50 | 80m | +8 / - | IZ2BQL | - / -12 | 2 | ✓ Closing fragment |
| 10-21 19:21 | 80m | +6 / - | UR5RBP | 0 / -13 | 4 | Partial capture |
| 10-15 12:59 | 40m | -5 / - | OE6PVG | -16 / +4 | 19 | Partial capture |
| 10-14 03:15 | 80m | +4 / - | WB2AA | - / - | 2 | Partial capture |
| 10-12 09:18 | 40m | +4 / - | 9A2KO | - / +7 | 2 | ✓ Closing fragment |
| 10-12 09:16 | 40m | +2 / -8 | DG1RMY | -14 / -12 | 7 | ✓ Full exchange observed |
| 10-12 09:15 | 40m | 0 / - | PD4RJ | - / -13 | 3 | ✓ Closing fragment |
| 10-12 09:13 | 40m | +5 / -5 | OK1UVJ | -16 / -4 | 4 | ✓ Full exchange observed |
| 10-12 09:10 | 40m | +2 / - | Z62NS | -7 / -13 | 5 | ✓ Full exchange observed |
| 10-12 02:05 | 80m | +9 / - | VP2MAW | - / - | 7 | Partial capture |
| 10-12 01:58 | 80m | +11 / - | VP2MAW | - / - | 8 | Partial capture |
| 10-12 01:55 | 80m | +17 / - | 9H6C | -8 / +2 | 4 | Partial capture |
| 10-12 01:49 | 80m | +12 / - | VP2MAW | - / - | 6 | Partial capture |
| 10-12 01:47 | 80m | +2 / -1 | ON4MAP | -4 / -2 | 5 | ✓ Full exchange observed |
| 10-12 01:45 | 80m | +4 / -16 | G3TKT | -8 / -17 | 4 | ✓ Full exchange observed |
| 10-12 01:43 | 80m | - / - | IU2THY | +1 / - | 2 | Partial capture |
| 10-12 01:43 | 80m | +9 / -8 | M0IOY | +1 / 0 | 5 | ✓ Full exchange observed |
| 10-12 01:40 | 80m | +12 / +4 | T77RN | -3 / -3 | 6 | ✓ Full exchange observed |
| 10-11 15:37 | 40m | 0 / - | GI0KMX | - / - | 3 | Partial capture |
| 10-11 15:20 | 40m | -5 / -7 | DG8NBP | -7 / - | 4 | ✓ Closing observed |
| 10-11 15:18 | 40m | -4 / - | VJ6X | - / - | 3 | Partial capture |
| 10-11 03:38 | 40m | - / - | SV5BYP | -2 / - | 4 | Partial capture |
| 10-11 03:32 | 80m | +1 / - | VA3DIF | - / - | 6 | Partial capture |
| 10-11 03:28 | 80m | +7 / - | I1WQR | +14 / - | 9 | Partial capture |
| 10-11 03:26 | 80m | +2 / - | KD3BVL | - / - | 3 | Partial capture |
| 10-11 03:24 | 80m | -3 / - | 4L7T | - / -21 | 3 | Partial capture |
| 10-10 08:11 | 40m | -5 / - | F4HSB | - / -2 | 2 | ✓ Closing fragment |
| 10-10 08:09 | 40m | -5 / - | DL1ESZ | - / -8 | 2 | ✓ Closing fragment |
| 10-10 08:06 | 40m | -4 / - | DK8HC/P | - / +1 | 5 | Partial capture |
| 10-10 08:05 | 40m | -6 / +9 | DH1DH | -17 / +8 | 5 | ✓ Full exchange observed |
| 10-10 08:02 | 40m | -6 / - | IU0KNS | - / - | 2 | ✓ Closing fragment |
| 10-10 08:00 | 40m | -6 / - | DF8RU | +1 / - | 5 | ✓ Full exchange observed |
| 10-10 08:00 | 40m | - / - | IU2THY | -5 / - | 3 | Partial capture |
| 10-10 07:58 | 40m | -3 / - | PF1B | - / -10 | 4 | Partial capture |
| 10-10 07:55 | 40m | +1 / -13 | DJ1ST | -6 / +9 | 8 | ✓ Full exchange observed |
| 10-10 07:51 | 40m | -4 / - | CT2GQA | - / - | 6 | Partial capture |
| 10-10 07:48 | 40m | -3 / +10 | S56IAR | +2 / - | 8 | ✓ Full exchange observed |
| 10-10 04:13 | 40m | - / -5 | TA3NK | -5 / - | 3 | ✓ Closing fragment |
| 10-09 08:59 | 40m | -1 / - | LA6RJA | - / -14 | 3 | ✓ Closing fragment |
| 10-09 08:55 | 40m | -6 / - | M7ISX | - / -19 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 130500 -15 1812 S51TN OE6PVG JN77 130515 -5 529 OE6PVG S51TN +01 130545 -6 529 CQ S51TN JN76 (x2) 151600 -20 1435 S51TN LA7XJ JO59 151615 -2 755 LA7XJ S51TN -06 (x2) 151700 -17 1435 S51TN LA7XJ 73 151745 -1 755 CQ S51TN JN76 (x6) 094700 -17 2117 F1UNR S51TN JN76
UTC dB Audio Message 041430 -1 240 ES2AJ S51TN +04 041445 +9 240 S51TN ES2AJ R-13 041500 -3 240 ES2AJ S51TN RR73 041515 +12 240 S51TN ES2AJ R-13 041530 +8 240 ES2AJ S51TN RR73 041545 +17 240 S51TN ES2AJ R-13 041600 +3 240 CQ S51TN JN76 041615 -7 241 S51TN DL1VVQ -11 041700 +4 239 DL1VVQ S51TN 73 041715 +1 240 S51TN DL1VVQ 73 041730 -5 240 CQ S51TN JN76 (x5)
UTC dB Audio Message 075900 -16 2231 S51TN ON5RZ JO21 (x7) 083800 -12 672 CQ S51TN JN76 112545 -22 1625 S51TN TF5B RR73
UTC dB Audio Message 160300 -4 762 9H4CM S51TN JN76 (x2) 161500 -2 761 UB3BDB S51TN -17 111230 -24 2004 S51TN VP2MAA -12 111745 -1 522 VP2MAA S51TN R-12 (x2) 111930 -4 473 S51TN F6BHK JN24 112000 -5 472 S51TN TA3NK R-09 (x2) 112845 +9 2481 S51TN IQ4JO JN63 112915 -3 797 S51TN R7OV KN87 (x3) 113415 -9 885 S51TN PD1WMD R+09 (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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