EA5YI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA5YI, decoded by SO8OO in southeastern Poland. 163 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-21 and 2026-09-14.
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 163 FT8 messages attributed to EA5YI as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (41%), followed by 40 m (23%) and 60 m (20%). Most decodes (75%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-09-14 04:08 UTC
Observed FT8 message patterns
- Attributed sample
- 163 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -24 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 72, moderate (-15 to -9 dB) 48, strong (≥ -8 dB) 43.
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 EA5YI 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 EA5YI
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
- IM99 · 111 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,129 km (approx.)
- Last such locator decoded
- 2026-09-14 04:08 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 | EA5YI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 20:46 | 80m | - / -17 | TA3GO | +3 / - | 2 | ✓ Closing fragment |
| 09-14 04:04 | 40m | -5 / - | N0MHL | - / -10 | 3 | ✓ Closing fragment |
| 09-14 04:00 | 40m | -8 / - | YN9ZDJ | - / -16 | 3 | ✓ Closing fragment |
| 09-14 02:17 | 80m | -20 / - | II7IAME | - / -10 | 2 | Partial capture |
| 09-14 01:43 | 60m | -4 / - | W5GFM | - / - | 2 | Partial capture |
| 09-14 01:42 | 60m | 0 / - | LY7Z | - / - | 2 | Partial capture |
| 09-13 23:25 | 60m | -17 / - | LY7Z | - / - | 3 | Partial capture |
| 09-13 23:18 | 60m | -13 / - | VA2EU | - / -14 | 8 | ✓ Closing fragment |
| 09-13 23:14 | 60m | -15 / - | LY7Z | - / - | 3 | Partial capture |
| 09-13 23:10 | 40m | - / -18 | EX7CQ | -4 / - | 2 | Partial capture |
| 09-13 19:08 | 160m | - / -4 | G4IRN | +5 / - | 2 | ✓ Closing fragment |
| 09-13 19:01 | 80m | - / +1 | EA5OK | -16 / - | 2 | ✓ Closing fragment |
| 09-13 18:54 | 60m | - / - | SA6DST | -18 / - | 3 | Partial capture |
| 09-13 18:53 | 60m | - / +3 | G3SUY | -1 / - | 4 | ✓ Closing fragment |
| 09-13 18:52 | 60m | - / -11 | LY8O | +6 / - | 2 | ✓ Closing fragment |
| 09-13 18:44 | 60m | -16 / -1 | ON6AA | +3 / -2 | 5 | ✓ Full exchange observed |
| 09-13 18:43 | 60m | -14 / -1 | LA1UW | -3 / -12 | 5 | ✓ Full exchange observed |
| 09-13 18:32 | 60m | -13 / -6 | OZ9FF | -1 / -8 | 3 | ✓ Full exchange observed |
| 09-13 18:31 | 60m | -15 / - | F4GAJ | - / -6 | 3 | ✓ Closing fragment |
| 09-13 00:19 | 160m | -16 / - | RA3ZGT | - / - | 2 | Partial capture |
| 09-13 00:12 | 160m | -13 / +1 | IU5TUD | -17 / -20 | 5 | ✓ Full exchange observed |
| 09-13 00:10 | 160m | -14 / -21 | UA3ZUX | +14 / -16 | 10 | ✓ Full exchange observed |
| 09-13 00:03 | 160m | -20 / - | V26OC | - / - | 8 | Partial capture |
| 08-31 21:10 | 160m | -22 / - | EA7AZH | - / -22 | 2 | Partial capture |
| 08-31 21:03 | 160m | -22 / -12 | OH4UI | -9 / -18 | 7 | ✓ Full exchange observed |
| 08-31 21:03 | 160m | - / -19 | R2EA | -2 / - | 2 | Partial capture |
| 08-31 20:40 | 80m | - / +4 | EA5HM | -8 / - | 4 | Partial capture |
| 08-31 00:07 | 160m | -23 / - | RI1FJL | - / - | 9 | Partial capture |
| 08-30 23:55 | 160m | -22 / - | RI1FJL | - / - | 7 | Partial capture |
| 08-30 23:27 | 40m | -16 / -13 | UA9CR | -11 / -10 | 3 | ✓ Full exchange observed |
| 08-30 23:25 | 40m | -17 / - | SQ8NA | - / -19 | 4 | Partial capture |
| 08-30 22:56 | 160m | -20 / - | RI1FJL | - / - | 5 | Partial capture |
| 08-30 21:38 | 160m | -19 / +1 | G3SED | -12 / -9 | 3 | Partial capture |
| 08-30 02:11 | 160m | -14 / - | EA8AR | -24 / -15 | 3 | ✓ Closing observed |
| 08-30 02:08 | 160m | -16 / -22 | G8OO | -11 / -17 | 6 | ✓ Full exchange observed |
| 08-30 02:05 | 160m | -15 / -16 | OM2WQ | +8 / -8 | 5 | ✓ Full exchange observed |
| 08-28 22:58 | 80m | -24 / -17 | SM3NXS | -4 / -13 | 4 | ✓ Full exchange observed |
| 08-28 22:01 | 40m | -6 / -14 | RM8L | 0 / -5 | 4 | ✓ Full exchange observed |
| 08-28 21:59 | 40m | -6 / - | PY5UD | - / -18 | 2 | ✓ Closing fragment |
| 08-28 21:58 | 40m | -7 / - | UF1A | - / -15 | 3 | ✓ Closing fragment |
| 08-28 21:56 | 40m | -6 / -8 | UB3AZG | -9 / - | 7 | Partial capture |
| 08-28 21:51 | 40m | -10 / -4 | G0RVY | +6 / -1 | 5 | ✓ Full exchange observed |
| 08-28 21:50 | 40m | - / 0 | CN8NS | -8 / - | 2 | ✓ Closing fragment |
| 08-28 21:48 | 40m | - / -7 | EA2DR | -14 / - | 2 | ✓ Closing fragment |
| 08-28 05:23 | 20m | -6 / - | NL8F | - / - | 2 | Partial capture |
| 08-28 05:19 | 20m | -11 / - | NL8F | - / - | 2 | Partial capture |
| 08-25 17:53 | 20m | -2 / - | RA9FUE | - / - | 2 | Partial capture |
| 08-23 21:34 | 20m | +4 / - | 7Z1BQ | - / - | 2 | Partial capture |
| 08-23 21:26 | 20m | +2 / - | RD0L | - / -23 | 4 | ✓ Closing fragment |
| 08-23 21:15 | 20m | -14 / - | VE3OZW | - / - | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 225900 -3 1965 EA5YI SM3NXS -17 225915 -24 1965 SM3NXS EA5YI R-13 225930 -6 1965 EA5YI SM3NXS RR73 200915 -11 627 EA5YI RK9UE -17 204000 -4 1412 EA5YI EA5HM IM99 (x4) 190145 -17 1469 EA5YI EA5OK +01 (x2) 021715 -22 1875 II7IAME EA5YI IM99 021730 +5 874 EA5YI GX4RAF/P -09 021745 -19 1875 II7IAME EA5YI R-10 204600 +2 740 EA5YI TA3GO -17 (x2)
UTC dB Audio Message 231915 -13 1584 VA2EU EA5YI IM99 (x7) 232515 -18 1768 LY7Z EA5YI IM99 (x5) 014315 -6 1910 W5GFM EA5YI IM99 (x2) 040830 -18 1682 W8FSM EA5YI IM99
UTC dB Audio Message 232730 -16 1841 UA9CR EA5YI R-10 232745 -9 932 EA5YI UA9CR RR73 232915 -20 1764 PP7GB EA5YI IM99 233045 -16 1653 HK4QXX EA5YI 73 185800 -3 1782 EA5YI RC9WC RR73 230600 -24 1653 OS4K EA5YI R-17 231000 -9 1715 EA5YI EX7CQ -18 (x2) 034200 -12 1941 W6M EA5YI R-09 040015 -8 1520 YN9ZDJ EA5YI IM99 (x3) 040430 -3 2748 N0MHL EA5YI R-10 (x3)
UTC dB Audio Message 001315 -13 1762 EA5YI IU5TUD +01 001330 -12 1879 IU5TUD EA5YI R-20 (x2) 001415 +15 2735 EA5YI UA3ZUX KO90 001430 -10 1879 UA3ZUX EA5YI -16 001445 +14 2735 EA5YI UA3ZUX R-21 001500 -18 1879 UA3ZUX EA5YI RR73 001515 +15 2735 EA5YI UA3ZUX 73 001930 -15 1880 RA3ZGT EA5YI IM99 (x2) 190815 +4 554 EA5YI G4IRN -04 (x2) 190930 -23 1796 CQ EA5YI IM99 014830 -18 1666 V26OC EA5YI IM99 020600 -16 1666 VP2MAA EA5YI IM99
UTC dB Audio Message 212700 +3 2685 RD0L EA5YI R-23 (x2) 213315 +7 2544 BG7BVI EA5YI IM99 213415 +5 2683 7Z1BQ EA5YI IM99 (x2) 175330 -1 1856 RA9FUE EA5YI IM99 (x2) 051900 -14 1869 NL8F EA5YI IM99 (x2) 052230 -4 1627 WU8T EA5YI 73 052330 -8 1871 NL8F EA5YI IM99 (x2) 052600 -8 1685 VE5SKN EA5YI IM99 113345 -8 1954 M9ORB EA5YI R-24 113715 -6 1612 PA3ATR EA5YI IM99
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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