EU3AA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belarus Most frequent locator attributed to this token: KO22

Receiver-side FT8 activity involving EU3AA, decoded by SO8OO in southeastern Poland. 783 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, across 31 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-09-18.

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 783 FT8 messages attributed to EU3AA as the transmitting token by decoded message structure across 31 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (91%), followed by 40 m (7%) and 60 m (2%). Most decodes (57%) fell within the six-hour window 22:00-04:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (94%); the estimated median was +8 dB.

Overview

783
Messages attributed
31
UTC dates decoded
80
Active 15-min windows
+8 dB
Estimated median S/N

Bands

First attributed message: 2026-06-09
Last attributed message: 2026-09-18 03:53 UTC

Observed FT8 message patterns

Attributed sample
783 messages
Active dates
31 UTC dates
Estimated median S/N
+8 dB
Estimated 10th-90th percentile
-5 to +16 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 735.

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 EU3AA

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
KO22 · 502 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
362 km (approx.)
Last such locator decoded
2026-09-18 03:53 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 UTCBandEU3AA S/NCounterpartCounterpart S/NMsgsCapture
09-18 03:52 80m - / - DO5PY -12 / - 5 Partial capture
09-18 03:51 80m - / +7 SP7ENZ +8 / - 2 Partial capture
09-18 03:49 80m +10 / - K3HPA - / -16 2 ✓ Closing fragment
09-18 03:48 80m +8 / - WB0IZO - / - 2 Partial capture
09-18 03:48 80m - / - F4IIX -13 / - 3 Partial capture
09-18 03:47 80m - / - DL9KM -4 / - 2 Partial capture
09-18 03:47 80m - / - EA3C -1 / - 3 Partial capture
09-18 03:47 80m - / +2 ON1JP -15 / - 5 Partial capture
09-18 03:45 80m +11 / - WD4ETU - / -9 5 ✓ Closing fragment
09-18 03:44 80m - / 0 SP7ENZ +6 / - 2 Partial capture
09-17 19:46 80m +8 / - JH6DUL - / -21 3 ✓ Closing fragment
09-17 19:44 80m +11 / - JG3TRB - / -16 3 ✓ Closing fragment
09-17 19:42 80m +11 / - 7Z1DH - / -22 3 ✓ Closing fragment
09-17 19:41 80m +12 / - JG3TRB - / - 2 Partial capture
09-17 19:40 80m +16 / - JF2XGF - / -15 2 ✓ Closing fragment
09-17 19:30 80m - / +2 R6CW -8 / - 2 Partial capture
09-17 19:30 80m - / -3 RW3ATR -12 / - 4 Partial capture
09-17 19:29 80m +16 / -14 JF8QNF -24 / - 2 ✓ Closing observed
09-17 19:28 80m - / - DD4JN -22 / - 2 Partial capture
09-17 19:28 80m - / - DO8JB -12 / - 7 Partial capture
09-17 19:28 80m - / -5 R7KKO -15 / - 4 Partial capture
09-17 19:27 80m +5 / - JA4FKX - / -14 2 ✓ Closing fragment
09-17 19:24 80m +10 / - JF8QNF - / - 2 Partial capture
09-13 18:55 40m -18 / - ZL1RPC/P - / - 2 Partial capture
09-02 02:56 80m - / - DL9KM +2 / - 6 Partial capture
09-02 02:46 80m - / -8 GM6URC -4 / - 4 Partial capture
09-02 02:43 80m - / - ON4MAP -16 / - 5 Partial capture
09-02 02:37 80m - / +4 ON1JP -11 / - 4 Partial capture
09-01 18:07 80m - / -6 R7KKO -9 / - 2 Partial capture
09-01 18:00 80m +6 / - RI1FJL - / -15 14 ✓ Closing fragment
08-29 04:29 40m - / - F6FHZ -19 / - 3 Partial capture
08-29 04:28 40m - / +9 F4MZI -13 / - 4 Partial capture
08-29 04:24 40m - / - F5OYA/P -14 / - 13 Partial capture
08-29 03:55 80m - / - OK1UOZ -5 / - 8 Partial capture
08-29 03:49 80m +5 / - W7WRO - / - 6 Partial capture
08-29 03:49 80m - / - R2AL -8 / - 3 Partial capture
08-29 03:36 80m - / - RO3ZR -7 / - 2 Partial capture
08-29 03:36 80m +7 / - N7ELL -8 / -14 4 ✓ Closing observed
08-25 03:11 80m - / - 9A9TT -13 / - 2 Partial capture
08-25 03:11 80m -4 / - W3SW - / -14 2 ✓ Closing fragment
08-25 03:10 80m -4 / - KR4CE - / +1 4 ✓ Closing fragment
08-25 03:07 80m - / - EA7LIC -7 / - 3 Partial capture
08-25 03:07 80m - / - UA4FKT -7 / - 3 Partial capture
08-21 03:29 80m -5 / - WB4MSG - / - 4 Partial capture
08-21 03:26 80m - / - DH2YBG -19 / - 4 Partial capture
08-21 03:21 80m -7 / - N8OC - / -17 3 Partial capture
08-21 03:20 80m +2 / - W0UC - / -16 2 ✓ Closing fragment
08-21 03:08 80m - / - DH2YBG -7 / - 20 Partial capture
08-21 03:04 80m +3 / -9 K6RO -5 / -19 6 ✓ Full exchange observed
08-21 03:03 80m +3 / - KD4HOU - / -18 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
035000 -14 1945  EU3AA F4IIX IN95
035015  +8 1555  K3HPA EU3AA RR73
035045 +11 1555  CQ NA EU3AA KO22
035100  +6 1266  EU3AA SP7ENZ +07
035115  +2 1555  CQ NA EU3AA KO22
035130  +9 1266  EU3AA SP7ENZ +01
035145  +6 1555  CQ NA EU3AA KO22
035200 -11 1555  EU3AA DO5PY JN49
035215  +7 1517  CQ NA EU3AA KO22
035230 -14 1556  EU3AA DO5PY JN49
035245 +13 1517  CQ NA EU3AA KO22
035300 -12 1556  EU3AA DO5PY JN49
035315 +13 1618  CQ NA EU3AA KO22
035330  -9 1556  EU3AA DO5PY JN49 (x2)
40m
UTC    dB Audio  Message
042830 -17 1606  EU3AA F5OYA/P JN13
042845 -16  565  EU3AA F4MZI +09
042900 -15 1606  EU3AA F5OYA/P JN13
042915 -16 1607  EU3AA F6FHZ JN18
042930 -14 1606  EU3AA F5OYA/P JN13
042945 -19 1606  EU3AA F6FHZ JN18 (x2)
043015 -12  565  EU3AA F4MZI +09 (x2)
043130 -16 1606  EU3AA F5OYA/P JN13 (x4)
185545 -19 1941  ZL1RPC/P EU3AA KO22 (x2)
20m
UTC    dB Audio  Message
092630  -8  862  EU3AA G8IXM JO02
60m
UTC    dB Audio  Message
023545 -15 1341  OJ0YL EU3AA KO22 (x5)
023800  -9 1532  EU3AA OJ0YL RR73
023815  -2  595  OJ0YL EU3AA 73
023830  -6 1815  EU3AA IK4CBO JN54 (x2)
160m
UTC    dB Audio  Message
185715  +9 1843  FK8HC EU3AA KO22 (x5)
190400 -20 1479  EU3AA R4FDD -07
190500  -1 1370  EU3AA OK1XV JN79 (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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