EA5HEU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA5HEU, decoded by SO8OO in southeastern Poland. 2,726 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 67 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-15.
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 2,726 FT8 messages attributed to EA5HEU as the transmitting token by decoded message structure across 67 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (96%), followed by 40 m (2%) and 10 m (2%). Most decodes (69%) fell within the six-hour window 03:00-09:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -6.3 dB.
Overview
Bands
Last attributed message: 2026-09-15 03:59 UTC
Observed FT8 message patterns
- Attributed sample
- 2,726 messages
- Active dates
- 67 UTC dates
- Estimated median S/N
- -6.3 dB
- Estimated 10th-90th percentile
- -18 to +9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 489, moderate (-15 to -9 dB) 659, strong (≥ -8 dB) 1,578.
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 EA5HEU 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 EA5HEU
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
- JN00 · 1,965 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,927 km (approx.)
- Last such locator decoded
- 2026-09-15 03:59 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 | EA5HEU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 04:00 | 40m | - / - | LZ1ZF | -6 / - | 2 | Partial capture |
| 09-15 03:55 | 40m | -14 / - | EW4DX | - / - | 6 | Partial capture |
| 09-13 04:14 | 40m | -18 / - | N3YPL | - / - | 6 | Partial capture |
| 09-13 04:13 | 40m | -12 / - | RK6OV | - / - | 2 | Partial capture |
| 09-13 04:09 | 40m | -12 / - | RK6OV | - / - | 3 | Partial capture |
| 09-13 04:07 | 40m | -11 / -14 | R3KLE | -11 / -18 | 5 | ✓ Full exchange observed |
| 09-13 04:05 | 40m | -11 / - | W8MW | - / - | 5 | Partial capture |
| 09-13 04:03 | 40m | -10 / -6 | GM6URC | -18 / -22 | 5 | ✓ Full exchange observed |
| 09-13 04:00 | 40m | -9 / - | RA6OQ | - / - | 6 | Partial capture |
| 09-13 03:58 | 40m | -10 / - | RA3LBK | - / -15 | 4 | ✓ Closing fragment |
| 09-13 03:57 | 40m | -8 / - | R2EA | - / - | 2 | Partial capture |
| 09-13 03:55 | 40m | -7 / - | RU6CH | - / - | 3 | Partial capture |
| 09-12 04:40 | 40m | -10 / - | OE4BHF | - / - | 3 | Partial capture |
| 09-12 04:34 | 40m | -19 / - | YO3EGE | - / - | 2 | Partial capture |
| 08-31 19:03 | 20m | +9 / - | UN7PHV | - / -11 | 2 | ✓ Closing fragment |
| 08-31 19:00 | 20m | +8 / -22 | UD6AUW | -3 / -12 | 6 | ✓ Full exchange observed |
| 08-31 18:58 | 20m | +8 / - | XW4KV | - / -17 | 3 | ✓ Closing fragment |
| 08-31 18:57 | 20m | +4 / - | ZL1GT | - / - | 2 | Partial capture |
| 08-31 18:53 | 20m | +2 / - | R6LMH | - / - | 7 | Partial capture |
| 08-31 18:48 | 20m | -1 / - | RU3G | - / -9 | 7 | ✓ Closing fragment |
| 08-31 18:46 | 20m | +5 / - | R2GDV | - / -4 | 2 | ✓ Closing fragment |
| 08-31 18:43 | 20m | 0 / - | R3PJV | - / - | 6 | Partial capture |
| 08-31 18:41 | 20m | -3 / - | R2GDV | - / - | 3 | Partial capture |
| 08-31 18:39 | 20m | -1 / - | BG7LMW | - / -22 | 4 | ✓ Closing fragment |
| 08-31 18:34 | 20m | -3 / - | UB8AHK | - / -16 | 5 | ✓ Closing fragment |
| 08-31 18:30 | 20m | -4 / - | R9FDM | - / -11 | 2 | ✓ Closing fragment |
| 08-31 14:50 | 20m | 0 / - | R0BD | - / - | 14 | Partial capture |
| 08-31 14:49 | 20m | +2 / - | UA3RBM | +9 / -12 | 4 | ✓ Closing observed |
| 08-31 14:43 | 20m | +8 / - | UB8AHK | - / - | 5 | Partial capture |
| 08-31 06:09 | 20m | +9 / - | R6ZB | - / - | 7 | Partial capture |
| 08-31 05:53 | 20m | -6 / - | R6ZB | - / - | 4 | Partial capture |
| 08-31 05:48 | 20m | +14 / -4 | RA3VGS | +5 / -22 | 11 | ✓ Full exchange observed |
| 08-31 05:44 | 20m | +10 / - | RA6OY | - / - | 8 | Partial capture |
| 08-31 05:42 | 20m | +13 / - | RC9WC | - / -14 | 2 | ✓ Closing fragment |
| 08-31 05:40 | 20m | +11 / - | R7OQ | - / -19 | 3 | ✓ Closing fragment |
| 08-31 05:30 | 20m | -6 / - | OH7FES | - / -16 | 2 | ✓ Closing fragment |
| 08-31 05:27 | 20m | -5 / - | UN8DSW | - / - | 3 | Partial capture |
| 08-31 05:24 | 20m | -6 / - | R9OX | -16 / -21 | 9 | ✓ Closing observed |
| 08-31 05:18 | 20m | -12 / - | RX4SA | - / - | 10 | Partial capture |
| 08-31 05:15 | 20m | -10 / - | RV3YN | - / -11 | 2 | ✓ Closing fragment |
| 08-31 05:11 | 20m | -17 / - | R2HH | - / -2 | 4 | Partial capture |
| 08-31 05:09 | 20m | -9 / -10 | UA4POO | -16 / +2 | 4 | ✓ Full exchange observed |
| 08-30 17:50 | 20m | +14 / - | YC2YIZ | - / -9 | 4 | ✓ Closing fragment |
| 08-30 17:46 | 20m | +11 / - | JR4GPA | - / -23 | 6 | ✓ Closing fragment |
| 08-30 17:45 | 20m | +7 / - | JR7RHO | - / -7 | 2 | ✓ Closing fragment |
| 08-30 17:42 | 20m | +2 / - | R9JAU | - / -20 | 2 | Partial capture |
| 08-30 17:40 | 20m | +8 / - | RW1CW | - / -15 | 2 | Partial capture |
| 08-30 10:31 | 20m | -8 / - | RW3XB | - / - | 2 | ✓ Closing fragment |
| 08-30 10:28 | 20m | -9 / - | RL3F | - / -15 | 5 | ✓ Closing fragment |
| 08-30 10:26 | 20m | -10 / - | RA9CAD | - / -15 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 041515 -17 1400 N3YPL EA5HEU JN00 (x5) 041815 -8 1542 EW2ZC EA5HEU JN00 035530 -19 1988 EW4DX EA5HEU JN00 (x6) 035900 -6 1987 W4WFC EA5HEU JN00 040015 -6 1360 EA5HEU LZ1ZF KN22 (x2)
UTC dB Audio Message 185630 +1 2116 R6LMH EA5HEU JN00 185700 +3 2116 ZL1GT EA5HEU JN00 (x2) 185830 +8 2116 XW4KV EA5HEU JN00 (x3) 190000 +7 2116 UD6AUW EA5HEU JN00 (x3) 190115 -3 1570 EA5HEU UD6AUW -22 190130 +11 2116 UD6AUW EA5HEU R-12 (x2) 190230 +8 2116 R6LMH EA5HEU JN00 190300 +10 2116 UN7PHV EA5HEU R-11 (x2)
UTC dB Audio Message 151800 -8 1770 RW6HP EA5HEU JN00 (x2) 151900 -19 1770 ZS6NL EA5HEU JN00 152845 -22 1859 RV3YN EA5HEU JN00 (x3) 153115 -18 1860 CN2DX EA5HEU JN00 (x2) 170700 -6 2272 EA5HEU DL3BH JN48 (x2) 092615 -19 1952 R7RAG EA5HEU R-14 (x2) 092745 -18 1951 DO9BAU EA5HEU -07 092915 -21 1951 DO2DH EA5HEU RR73 093045 -21 1951 SP2DPK EA5HEU RR73
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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