EA1SA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA1SA, decoded by SO8OO in southeastern Poland. 65 FT8 messages attributed to this token as transmitter, on 60m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-13 and 2026-10-04.
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 65 FT8 messages attributed to EA1SA as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (100%). Several six-hour UTC windows tied for the largest share (100%), 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 0 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 65 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- 0 dB
- Estimated 10th-90th percentile
- -16 to +10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 44.
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 EA1SA 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 EA1SA
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
- IN83 · 25 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,010 km (approx.)
- Last such locator decoded
- 2026-10-04 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 | EA1SA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-04 05:14 | 60m | +15 / - | 9T0MD | - / -26 | 2 | ✓ Closing fragment |
| 10-04 04:39 | 60m | +5 / - | 9T0MD | - / -26 | 32 | Partial capture |
| 10-03 05:23 | 60m | 0 / - | 9T0MD | - / -26 | 7 | ✓ Closing fragment |
| 10-01 04:43 | 60m | -4 / +2 | DL9KM | -18 / -12 | 7 | ✓ Full exchange observed |
| 09-13 06:28 | 60m | - / +10 | PA5KK | -18 / - | 5 | Partial capture |
| 09-13 06:20 | 60m | - / +6 | DL7ARV | 0 / - | 16 | ✓ Closing fragment |
| 09-13 06:11 | 60m | -14 / - | DC9JVN | -16 / -16 | 3 | ✓ Closing observed |
| 09-13 06:11 | 60m | - / - | DL9KM | -12 / - | 6 | Partial capture |
| 09-13 06:08 | 60m | - / - | F1TXI | -14 / - | 3 | ✓ Closing fragment |
| 09-13 06:04 | 60m | -12 / +9 | DK2MAX | -4 / -14 | 6 | ✓ Full exchange observed |
| 09-13 06:01 | 60m | -14 / - | MI0UYD | - / -15 | 2 | ✓ Closing fragment |
| 09-13 06:01 | 60m | - / - | F1TXI | -12 / - | 2 | Partial capture |
| 09-13 05:59 | 60m | -16 / - | SM6KOB | - / -13 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 044945 +8 538 9T0MD EA1SA R-26 (x15)
UTC dB Audio Message 072200 -10 768 EA1SA OH3MB KP20
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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