EA3GJC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA3GJC, decoded by SO8OO in southeastern Poland. 55 FT8 messages attributed to this token as transmitter, on 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-31.
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 55 FT8 messages attributed to EA3GJC as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (76%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 55 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -19 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 16, strong (≥ -8 dB) 27.
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 EA3GJC 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 EA3GJC
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
- JN11 · 34 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,727 km (approx.)
- Last such locator decoded
- 2026-08-31 13:21 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 | EA3GJC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-22 08:30 | 40m | - / - | F4BYA | -9 / - | 3 | Partial capture |
| 08-31 13:18 | 20m | - / -17 | PA2AMJ | -9 / - | 2 | Partial capture |
| 08-31 12:47 | 20m | - / - | ON3MOH | +4 / - | 2 | Partial capture |
| 08-30 13:22 | 20m | -13 / - | OH2XO | - / -10 | 5 | ✓ Closing fragment |
| 08-28 13:20 | 20m | -5 / - | DL5MKR | - / -10 | 2 | ✓ Closing fragment |
| 08-20 13:29 | 20m | -12 / -19 | PD1RMB | -11 / -18 | 13 | ✓ Full exchange observed |
| 07-14 08:45 | 20m | - / -14 | EB3JT | -12 / - | 3 | ✓ Closing fragment |
| 07-14 08:39 | 20m | - / -18 | DL0GEO | -16 / - | 2 | ✓ Closing fragment |
| 07-14 08:37 | 20m | - / -22 | LZ3CB | +1 / - | 3 | ✓ Closing fragment |
| 07-03 13:08 | 20m | - / -13 | HB9RYB | -24 / - | 2 | Partial capture |
| 07-03 13:01 | 20m | - / - | DL1UDO | -12 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 084315 -17 2430 EA3GJC S51PV JN76 132315 -13 2202 EA3GJC HB10GBT +03 082930 -13 687 EA3GJC ON1DGN -02 083030 -12 2705 EA3GJC F4BYA JN19 (x3)
UTC dB Audio Message 132245 -14 2401 OH2XO EA3GJC JN11 (x4) 124700 +9 1561 EA3GJC ON3MOH JO10 (x2) 131715 -15 3078 CQ EA3GJC JN11 131800 -8 3078 EA3GJC PA2AMJ -17 131815 -8 3078 CQ EA3GJC JN11 131830 -10 3078 EA3GJC PA2AMJ -14 131845 -7 3078 CQ EA3GJC JN11 (x5)
UTC dB Audio Message 095045 -17 1236 EA3GJC F1ODM RR73
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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