EA4HMX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA4HMX, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-21 and 2026-08-29.
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 18 FT8 messages attributed to EA4HMX as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (94%), followed by 40 m (6%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-29 07:36 UTC
Observed FT8 message patterns
- Attributed sample
- 18 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -18 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 1.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with EA4HMX 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 EA4HMX
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
- IN80 · 13 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,193 km (approx.)
- Last such locator decoded
- 2026-08-29 07:36 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 | EA4HMX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 07:34 | 20m | -17 / - | <...> | - / - | 5 | Partial capture |
| 08-27 19:04 | 20m | -13 / -5 | 9K2GR | -6 / -15 | 4 | ✓ Full exchange observed |
| 07-28 05:36 | 20m | -16 / - | XE1YO | - / - | 2 | Partial capture |
| 07-28 05:14 | 20m | -14 / - | XE1YO | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 051715 -24 1651 EA8AP EA4HMX R-03 053600 -19 1651 XE1YO EA4HMX IN80 (x2) 082830 -14 1294 EA4HMX 3A2MW -12 174400 -23 1750 BU2FW EA4HMX IN80 170430 -6 1634 YB7FII EA4HMX 73 190430 -5 1894 EA4HMX 9K2GR -05 190445 -13 1903 9K2GR EA4HMX R-15 190500 -6 1894 EA4HMX 9K2GR RR73 190515 -13 1903 9K2GR EA4HMX 73 073430 -14 1753 <...> EA4HMX IN80 (x5)
UTC dB Audio Message 190845 -23 1864 VJ6X EA4HMX R-18
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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