EA4DUT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IN80

Receiver-side FT8 activity involving EA4DUT, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-04 and 2026-08-21.

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 6 FT8 messages attributed to EA4DUT as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (67%), followed by 20 m (33%). In this small sample, the estimated median decoder S/N was -23 dB; no usual signal pattern is inferred.

Overview

6
Messages attributed
3
UTC dates decoded
3
Active 15-min windows
-23 dB
Estimated median S/N

Bands

80m · 4 20m · 2
First attributed message: 2026-08-04
Last attributed message: 2026-08-21 23:14 UTC

Observed FT8 message patterns

Attributed sample
6 messages
Active dates
3 UTC dates
Estimated median S/N
-23 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.

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 EA4DUT in decoded directed-looking exchanges:

Most frequent locator attributed to EA4DUT

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 · 6 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,193 km (approx.)
Last such locator decoded
2026-08-21 23:14 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 UTCBandEA4DUT S/NCounterpartCounterpart S/NMsgsCapture
09-20 18:06 60m - / - HA5CPN -12 / - 3 Partial capture
09-20 18:06 60m - / -14 SV1DKR -2 / - 3 ✓ Closing fragment
09-20 04:03 60m - / -8 F4PCM -5 / - 3 ✓ Closing fragment
09-19 19:36 60m - / -13 LA8ZIA -2 / - 3 ✓ Closing fragment
09-19 19:28 60m - / -17 DL5SBY -2 / - 3 ✓ Closing fragment
09-19 19:26 60m - / -8 DL4YDR -7 / - 3 ✓ Closing fragment
09-19 18:57 60m - / -16 YT5DEY -7 / - 4 ✓ Closing fragment
09-19 18:53 60m - / -10 HB9HAN -11 / - 3 ✓ Closing fragment
09-19 18:25 60m - / -3 F1PBZ -18 / - 2 ✓ Closing fragment
09-13 06:06 60m - / -21 DK2MAX -5 / - 3 ✓ Closing fragment
09-12 23:08 80m - / -22 YO6LM +2 / - 2 ✓ Closing fragment
09-12 19:46 60m - / - G0THY -16 / - 2 Partial capture
09-12 19:45 60m - / -17 LY8O +1 / - 3 ✓ Closing fragment
09-12 19:42 60m - / - OH1LA -8 / - 2 Partial capture
09-12 19:40 60m - / -14 G0JEI -9 / - 8 ✓ Closing fragment
08-22 23:58 40m - / -18 N1EN -10 / - 2 Partial capture
08-22 23:55 40m - / - F1IQH -16 / - 3 Partial capture
08-22 21:10 80m - / - EI4JFB -10 / - 3 Partial capture
08-22 07:37 40m - / - F4LNM -12 / - 3 Partial capture
08-22 07:34 40m - / -17 GJ0KYZ -14 / - 2 Partial capture
08-21 23:21 80m - / - F4FPR -24 / - 4 Partial capture
08-21 23:19 80m - / - G8OO -2 / - 9 Partial capture
08-21 23:19 80m - / -17 MM0KQC -11 / - 3 Partial capture
08-21 23:19 80m - / - DG5PW -19 / - 4 Partial capture
08-21 23:19 80m - / - DL1UDO -13 / - 2 Partial capture
08-21 23:19 80m - / - DO5PY -17 / - 3 Partial capture
08-21 23:14 80m - / -11 MM0KQC -15 / - 5 Partial capture
08-21 13:01 20m - / - PD3LKN -10 / - 2 Partial capture
08-15 00:13 60m - / - EA1KCN -20 / - 2 ✓ Closing fragment
08-13 22:28 80m -24 / - <...> - / - 3 Partial capture
08-13 22:18 80m - / -2 EA1AA -18 / - 6 Partial capture
08-11 09:28 20m - / - PE9JAN -12 / - 3 Partial capture
08-10 21:32 80m - / - DA6IT -14 / - 2 Partial capture
08-10 21:27 80m - / - ON4MAP -10 / - 2 Partial capture
08-10 21:26 80m - / - G4DBW -6 / - 2 Partial capture
08-10 21:20 80m - / -8 EA3EDU -10 / - 3 ✓ Closing fragment
08-10 13:21 20m - / +5 EG5MYC -22 / - 2 ✓ Closing fragment
08-08 20:16 60m - / -11 EH1SGG -16 / - 2 ✓ Closing fragment
08-07 22:22 60m - / - DG5PW -1 / - 9 Partial capture
08-07 22:18 60m - / - DG5PW -2 / - 4 Partial capture
08-07 22:13 60m - / - DG5PW -2 / - 4 Partial capture
08-07 22:11 60m - / +2 EG1UME -18 / - 3 ✓ Closing fragment
08-07 17:21 10m - / -18 PD0HLA -3 / - 9 Partial capture
08-05 21:02 60m - / -13 OT4R -7 / - 3 Partial capture
08-05 21:01 60m - / -9 GB8VJ -6 / - 2 ✓ Closing fragment
08-04 19:57 20m - / - MW7AHM -10 / - 6 Partial capture
08-03 22:45 40m - / +4 A71XX -14 / - 18 ✓ Closing fragment
08-03 22:41 40m - / +4 A71XX -16 / - 5 Partial capture
08-03 22:41 40m - / - ON7KEI -15 / - 5 Partial capture
08-03 19:38 60m - / -9 EA5JKT -16 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

60m 
UTC    dB Audio  Message
192845  +0 1777  EA4DUT DL5SBY R-17 (x2)
193600  -5 2426  EA4DUT LA8ZIA JO59 (x3)
225130  -9 1337  EA4DUT II8IHBC -13
040300  -5 1170  EA4DUT F4PCM JN23 (x3)
180645  +1 1825  EA4DUT SV1DKR KM18
180645 -11 1251  EA4DUT HA5CPN JN87
180715  -3 1825  EA4DUT SV1DKR R-14
180715 -15 1251  EA4DUT HA5CPN JN87
180745  -3 1825  EA4DUT SV1DKR 73
180745 -10 1251  EA4DUT HA5CPN JN87
80m 
UTC    dB Audio  Message
232130  -4  502  EA4DUT G8OO JO02
232130 -22 1505  EA4DUT F4FPR IN88
232200  -4  502  EA4DUT G8OO JO02
232200 -24 1505  EA4DUT F4FPR IN88
232230  -4  502  EA4DUT G8OO JO02
232230 -24 1505  EA4DUT F4FPR IN88
232300  -5  502  EA4DUT G8OO JO02
232300 -24 1506  EA4DUT F4FPR IN88
232330  -3  502  EA4DUT G8OO JO02
211045  -5  336  EA4DUT EI4JFB IO63 (x3)
230600  +5 2558  EA4DUT YO6LM KN25 (x3)
40m 
UTC    dB Audio  Message
225445 -15 1357  EA4DUT A71XX R+04 (x5)
073400 -14  936  EA4DUT GJ0KYZ -17 (x2)
073730 -11  935  EA4DUT F4LNM JN09 (x3)
235545 -15 1245  EA4DUT F1IQH JN27 (x3)
235845 -10 2592  EA4DUT N1EN -18 (x2)
20m 
UTC    dB Audio  Message
195945  -6  788  EA4DUT MW7AHM IO81 (x2)
200545 -16  788  EA4DUT TA3NK KN39
211545 -11  940  EA4DUT K1HC FN53
212630 -19 1313  CQ NA EA4DUT IN80 (x2)
132130 -22 1698  EA4DUT EG5MYC +05 (x2)
092815 -14 1425  EA4DUT PE9JAN JO22 (x3)
155645 -10 1276  EA4DUT CR5VP -14
130130  -9 1408  EA4DUT PD3LKN JO22 (x2)
130330 -19 1408  EA4DUT GJ0KYZ RR73
10m 
UTC    dB Audio  Message
172115 -11 2598  EA4DUT PD0HLA -18 (x9)

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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