EA7J — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving EA7J, decoded by SO8OO in southeastern Poland. 487 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-10-21.
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 487 FT8 messages attributed to EA7J as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (65%), followed by 40 m (23%) and 80 m (10%). Most decodes (65%) fell within the six-hour window 11:00-17:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-10-21 05:27 UTC
Observed FT8 message patterns
- Attributed sample
- 487 messages
- Active dates
- 13 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -19 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 137, moderate (-15 to -9 dB) 217, strong (≥ -8 dB) 133.
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 EA7J 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 EA7J
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
- IM77 · 270 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,538 km (approx.)
- Last such locator decoded
- 2026-10-21 05:00 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 | EA7J S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 14:21 | 10m | - / -7 | EA8CA | -18 / - | 2 | ✓ Closing fragment |
| 10-21 05:43 | 80m | - / +8 | G7RHF | -7 / - | 2 | ✓ Closing fragment |
| 10-21 05:30 | 80m | - / - | F4IIX | +6 / - | 2 | Partial capture |
| 10-21 05:29 | 80m | - / -6 | HB9EFK | +15 / - | 2 | ✓ Closing fragment |
| 10-21 05:26 | 80m | -16 / -16 | G0JEI | -13 / -9 | 5 | ✓ Full exchange observed |
| 10-21 05:25 | 80m | -14 / - | EA2KV | -16 / - | 2 | ✓ Closing observed |
| 10-21 05:02 | 80m | -8 / -5 | IK4TVP | +4 / +3 | 4 | ✓ Full exchange observed |
| 10-21 05:00 | 80m | -10 / 0 | PI4DX | +2 / +3 | 4 | ✓ Full exchange observed |
| 10-21 04:53 | 80m | -14 / - | MI0NWA | - / -21 | 2 | Partial capture |
| 10-21 04:52 | 80m | - / -16 | OZ1BLP | -8 / - | 3 | Partial capture |
| 10-21 04:49 | 80m | -10 / - | MI0NWA | - / - | 2 | Partial capture |
| 10-21 04:43 | 80m | - / - | G0BLB | +8 / - | 2 | Partial capture |
| 10-21 04:41 | 80m | -18 / -10 | KF8EXX | -19 / - | 2 | Partial capture |
| 10-18 16:03 | 10m | -16 / - | NP3RK | - / -9 | 2 | Partial capture |
| 10-18 16:02 | 10m | -16 / - | PP5NB | - / - | 3 | Partial capture |
| 10-18 16:00 | 10m | -17 / - | PP5YC | - / - | 3 | Partial capture |
| 10-18 15:56 | 10m | -11 / - | NP3RK | - / -14 | 5 | Partial capture |
| 10-18 15:54 | 10m | -17 / - | W1ARY | - / -3 | 3 | Partial capture |
| 10-18 15:50 | 10m | -16 / - | PY4LFP | - / -18 | 5 | Partial capture |
| 10-18 15:48 | 10m | -12 / - | HI8ERQ | - / - | 2 | Partial capture |
| 10-18 15:46 | 10m | -6 / - | KC2NJ | - / -10 | 3 | ✓ Closing fragment |
| 10-18 15:44 | 10m | -10 / - | PP1AY | - / - | 3 | Partial capture |
| 10-18 15:42 | 10m | -6 / - | K1MLP | - / - | 3 | Partial capture |
| 10-18 15:41 | 10m | -10 / - | LW7DBP | - / - | 3 | Partial capture |
| 10-18 15:39 | 10m | -8 / - | NE8Z | - / -2 | 4 | ✓ Closing fragment |
| 10-18 15:36 | 10m | -12 / - | KE8UOH | - / - | 3 | Partial capture |
| 10-18 15:22 | 10m | -14 / - | KA3IRT | - / -16 | 2 | Partial capture |
| 10-18 15:17 | 10m | -4 / - | PY4STO | - / -11 | 7 | ✓ Closing fragment |
| 10-18 15:15 | 10m | -12 / - | KC1OQX | - / -8 | 4 | Partial capture |
| 10-18 12:29 | 10m | -11 / - | 4X5JK | - / - | 3 | Partial capture |
| 10-18 12:25 | 10m | -10 / - | TA4SSK | - / -11 | 5 | Partial capture |
| 10-17 16:15 | 10m | -4 / - | NE8Z | - / 0 | 5 | Partial capture |
| 10-17 16:09 | 10m | -3 / - | NE8Z | - / +2 | 8 | Partial capture |
| 10-17 16:01 | 10m | -10 / - | TA2LE | - / -10 | 5 | ✓ Closing fragment |
| 10-17 15:59 | 10m | -11 / - | PT9RR | - / - | 3 | Partial capture |
| 10-17 15:56 | 10m | -13 / - | LU4MAJ | - / - | 3 | Partial capture |
| 10-17 15:55 | 10m | -7 / - | TA2LE | - / - | 3 | Partial capture |
| 10-17 15:52 | 10m | -11 / - | PY4WVZ | - / - | 3 | Partial capture |
| 10-17 15:48 | 10m | -13 / - | 8P6PE | - / - | 3 | Partial capture |
| 10-17 15:46 | 10m | -18 / - | PY2UTY | - / -21 | 2 | Partial capture |
| 10-17 15:44 | 10m | -20 / - | WB2MLY | - / - | 2 | Partial capture |
| 10-17 14:29 | 10m | -4 / - | KD2ERN | - / - | 2 | Partial capture |
| 10-17 14:28 | 10m | -8 / - | RA6MQ | - / - | 2 | Partial capture |
| 10-17 14:23 | 10m | -10 / - | KQ4RLN | - / -13 | 6 | ✓ Closing fragment |
| 10-17 12:54 | 10m | -17 / - | 7Z1IS | - / -9 | 11 | ✓ Closing fragment |
| 10-17 12:52 | 10m | -15 / - | IK3FHW | - / -8 | 2 | ✓ Closing fragment |
| 10-17 12:51 | 10m | -16 / - | IZ3NYG | - / +10 | 2 | ✓ Closing fragment |
| 10-17 12:48 | 10m | -15 / - | LY2TS | - / - | 2 | Partial capture |
| 10-17 12:46 | 10m | -12 / - | OH3JF | - / -3 | 3 | ✓ Closing fragment |
| 10-17 12:44 | 10m | -13 / - | ZS6GAV | - / -13 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 155745 -15 1128 NP3RK EA7J R-14 (x3) 160030 -16 1592 PP5YC EA7J IM77 (x3) 160215 -21 1573 PP5NB EA7J IM77 (x3) 160345 -15 1127 NP3RK EA7J IM77 (x2) 110545 -20 1626 EA7J TF5B RR73 123230 -9 783 EA7J EX7DY -11 142130 -20 1550 EA7J EA8CA -07 (x2)
UTC dB Audio Message 050415 -11 2321 IK4TVP EA7J 73 052530 -16 2144 EA7J EA2KV RR73 052545 -14 1933 EA2KV EA7J 73 052600 -11 663 EA7J G0JEI -16 (x2) 052630 -24 1933 EA7J F5LMJ JN28 052645 -16 1933 G0JEI EA7J R-09 052700 -15 663 EA7J G0JEI RR73 052715 -15 1933 G0JEI EA7J 73 052915 +18 327 EA7J HB9EFK -06 (x2) 053015 +7 2701 EA7J F4IIX IN95 (x2) 054300 -8 1802 EA7J G7RHF +08 (x2)
UTC dB Audio Message 205815 -5 2553 HG0NPJ EA7J IM77 (x4) 210030 -9 1732 M7CWF EA7J IM77 210200 -12 1613 IV3IHV EA7J IM77 (x2) 210345 -11 1684 EA7J F1IQH -14 210400 -10 1683 F1IQH EA7J IM77 210415 -10 1684 EA7J F1IQH -14 (x4) 210600 -15 1683 PD1LBH EA7J RRR 210715 -8 1076 EA7J F4CTJ -09
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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