EU3AA — FT8 activity observed at SO8OO
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
Bands
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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with EU3AA 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 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 UTC | Band | EU3AA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 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.
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)
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)
UTC dB Audio Message 092630 -8 862 EU3AA G8IXM JO02
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)
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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