ES3YJ — 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 ES3YJ, decoded by SO8OO in southeastern Poland. 49 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-20 and 2026-09-14.
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 49 FT8 messages attributed to ES3YJ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (90%), followed by 20 m (10%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-09-14 07:01 UTC
Observed FT8 message patterns
- Attributed sample
- 49 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -21 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 28, strong (≥ -8 dB) 3.
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 ES3YJ in decoded directed-looking exchanges:
Most frequent locator attributed to ES3YJ
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
- KO28 · 20 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 974 km (approx.)
- Last such locator decoded
- 2026-09-14 07:01 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 | ES3YJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-14 07:02 | 40m | - / -23 | PA7AL | -10 / - | 4 | Partial capture |
| 09-14 06:56 | 40m | -18 / - | HB9HRR | -18 / -18 | 5 | Partial capture |
| 09-14 06:54 | 40m | -16 / -9 | SP9WAZ | -9 / -3 | 5 | ✓ Full exchange observed |
| 09-14 06:51 | 40m | -18 / - | EA8UP | - / - | 2 | Partial capture |
| 09-14 06:40 | 40m | -13 / - | M7DDW | - / -4 | 3 | ✓ Closing fragment |
| 09-14 06:37 | 40m | -11 / -12 | ON1DGN | -20 / -13 | 4 | ✓ Full exchange observed |
| 09-14 06:36 | 40m | -18 / -16 | IU1TLG | -15 / - | 2 | ✓ Closing observed |
| 09-14 06:34 | 40m | - / - | LY3QR | -8 / - | 2 | ✓ Closing fragment |
| 08-09 17:11 | 40m | - / -6 | RC6OD | -8 / - | 2 | ✓ Closing fragment |
| 08-09 17:07 | 40m | - / +3 | UA5D | -14 / - | 4 | ✓ Closing fragment |
| 08-09 17:06 | 40m | - / +1 | UY0HY | -16 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 065515 -10 432 ES3YJ SP9WAZ R-09 065530 -16 1377 SP9WAZ ES3YJ RR73 065545 -9 432 ES3YJ SP9WAZ 73 065600 -15 1377 CQ ES3YJ KO28 065630 -19 1377 HB9HRR ES3YJ -18 065645 -18 1055 ES3YJ HB9HRR JN47 065700 -20 1377 HB9HRR ES3YJ -18 (x3) 070030 -15 914 HB9ZHK ES3YJ -17 070130 -12 535 CQ ES3YJ KO28 070215 -9 535 ES3YJ PA7AL R-23 (x4)
CW
16 CW reception events in the last 30 days.
Latest CW receptions
| UTC | Band | kHz | S/N · 500 Hz | WPM | Listen |
|---|---|---|---|---|---|
| 2026-11-01 08:31:07 | 40m | 7019.325 | 16.5 dB | 24.7 | WebSDR ↗ |
| 2026-11-01 08:25:18 | 40m | 7019.425 | 20.1 dB | 25.5 | WebSDR ↗ |
| 2026-11-01 08:05:55 | 40m | 7016.025 | 12.6 dB | 25.7 | WebSDR ↗ |
| 2026-11-01 08:04:54 | 40m | 7016.025 | 12.5 dB | 25.5 | WebSDR ↗ |
| 2026-11-01 07:46:42 | 40m | 7014.375 | 4.9 dB | 24.4 | WebSDR ↗ |
| 2026-11-01 07:45:32 | 40m | 7014.375 | 10 dB | — | WebSDR ↗ |
| 2026-11-01 07:32:51 | 40m | 7014.375 | 11.9 dB | 24.8 | WebSDR ↗ |
| 2026-11-01 07:18:03 | 40m | 7003.475 | 10.4 dB | 24.8 | WebSDR ↗ |
| 2026-11-01 07:15:28 | 40m | 7003.475 | 8 dB | — | WebSDR ↗ |
| 2026-11-01 07:14:27 | 40m | 7003.475 | 13.7 dB | 24.7 | WebSDR ↗ |
| 2026-11-01 07:01:04 | 40m | 7003.475 | 11.7 dB | 24.4 | WebSDR ↗ |
| 2026-10-26 18:03:53 | 40m | 7011.725 | 11.9 dB | 24.4 | WebSDR ↗ |
| 2026-10-26 18:02:24 | 40m | 7011.725 | 15.5 dB | 24.5 | WebSDR ↗ |
| 2026-10-26 18:01:59 | 40m | 7011.725 | 21.2 dB | 24.5 | WebSDR ↗ |
| 2026-10-22 16:23:26 | 80m | 3507.996 | 17.1 dB | 24.5 | WebSDR ↗ |
| 2026-10-10 07:31:02 | 40m | 7009.425 | 9.6 dB | 24.8 | WebSDR ↗ |
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