EA5JWB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM98

Receiver-side FT8 activity involving EA5JWB, decoded by SO8OO in southeastern Poland. 175 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-07-26.

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 175 FT8 messages attributed to EA5JWB as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (61%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -4 dB.

Overview

175
Messages attributed
3
UTC dates decoded
20
Active 15-min windows
-4 dB
Estimated median S/N

Bands

First attributed message: 2026-06-19
Last attributed message: 2026-07-26 21:22 UTC

Observed FT8 message patterns

Attributed sample
175 messages
Active dates
3 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-16 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 128.

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.

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 EA5JWB

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
IM98 · 79 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,203 km (approx.)
Last such locator decoded
2026-07-26 21:22 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 UTCBandEA5JWB S/NCounterpartCounterpart S/NMsgsCapture
07-26 21:21 20m -14 / - IK2UEC - / - 2 Partial capture
07-26 21:17 20m -11 / - OE5GTE - / +5 3 ✓ Closing fragment
07-26 21:15 20m -12 / - S56KO - / - 2 ✓ Closing fragment
07-26 21:11 20m -12 / - PP5HR - / -8 5 ✓ Closing fragment
07-26 21:09 20m -14 / - R2RFE - / -1 3 ✓ Closing fragment
07-26 21:05 20m -12 / - DL9KM -21 / - 2 Partial capture
07-26 21:04 20m -16 / - M0DPK - / - 2 ✓ Closing fragment
07-26 20:13 20m +2 / - PY2FZ - / -2 5 Partial capture
07-26 20:11 20m +5 / - UR1CCO - / -25 3 Partial capture
07-26 20:09 20m +6 / - DG5LP - / - 2 Partial capture
07-26 20:07 20m +1 / - SP9KSK - / -8 2 Partial capture
07-26 20:04 20m - / -14 TA2ED -9 / - 2 Partial capture
07-26 20:01 20m +3 / - TA6MMI -22 / -4 7 ✓ Closing observed
07-26 19:59 20m +4 / - SP9ENV - / -9 2 ✓ Closing fragment
07-26 19:54 20m -2 / - <...> - / - 6 Partial capture
07-26 19:50 20m -2 / - R1TM - / +6 3 ✓ Closing fragment
07-26 19:48 20m 0 / - SM5UNR - / +4 8 ✓ Closing fragment
07-26 19:42 20m -5 / - EX8ABR - / - 10 Partial capture
07-24 22:03 20m -5 / - HI8UD - / - 5 Partial capture
07-24 22:02 20m 0 / - 9Y4C - / -10 2 ✓ Closing fragment
07-24 16:44 20m -9 / +2 Z62NS -18 / -1 2 Partial capture
07-24 16:43 20m -14 / - BI8SCC - / - 2 Partial capture
07-24 16:41 20m -14 / - EX8ABR - / - 2 Partial capture
07-24 16:39 20m -11 / - DL5DQZ - / - 2 Partial capture
07-24 16:22 20m -18 / - R5BD - / 0 3 Partial capture
07-24 16:19 20m -18 / - EA4IPN - / -1 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

20m
UTC    dB Audio  Message
211015 -15 2145  R2RFE EA5JWB R-01 (x2)
211115 -10 2144  PP5HR EA5JWB IM98 (x5)
211530  -9 2208  S56KO EA5JWB IM98 (x2)
211715 -21 1820  EA5JWB PY2FZ GG57
211730 -14 1777  OE5GTE EA5JWB IM98 (x3)
212145 -12 1266  IK2UEC EA5JWB IM98 (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.

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