EA7R — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA7R, decoded by SO8OO in southeastern Poland. 3,943 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-17.
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 3,943 FT8 messages attributed to EA7R as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (65%), followed by 20 m (29%) and 160 m (3%). Most decodes (59%) fell within the six-hour window 23:00-05:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (85%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-10-17 00:20 UTC
Observed FT8 message patterns
- Attributed sample
- 3,943 messages
- Active dates
- 24 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -10 to +9.7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 91, moderate (-15 to -9 dB) 489, strong (≥ -8 dB) 3,363.
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 EA7R 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 EA7R
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
- IM66 · 2,449 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,744 km (approx.)
- Last such locator decoded
- 2026-10-17 00:18 UTC
Other locator fields attributed to this token: IM87 (4) and IM77 (1).
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 | EA7R S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-17 00:19 | 40m | -4 / - | KN1B | - / +1 | 2 | ✓ Closing fragment |
| 10-17 00:18 | 40m | -2 / - | EI7JQ | -12 / 0 | 3 | ✓ Closing observed |
| 10-17 00:16 | 40m | -3 / -16 | RX9WM | -5 / +2 | 5 | ✓ Full exchange observed |
| 10-17 00:14 | 40m | -6 / - | KR4HFR | - / -14 | 2 | ✓ Closing fragment |
| 10-17 00:09 | 40m | -7 / - | K3UCQ | - / -13 | 3 | ✓ Closing fragment |
| 10-16 23:57 | 40m | -3 / - | W8VG | - / -20 | 3 | ✓ Closing fragment |
| 10-16 23:55 | 40m | -7 / - | KZ4ZZ | - / +3 | 2 | ✓ Closing fragment |
| 10-16 23:54 | 40m | -8 / - | WU4L | - / -11 | 2 | Partial capture |
| 10-16 23:49 | 40m | - / - | RL3T | -7 / - | 2 | Partial capture |
| 10-16 23:45 | 40m | -6 / - | EA8AFB | - / -8 | 2 | ✓ Closing fragment |
| 10-16 23:44 | 40m | -12 / - | VO1ACZ | - / 0 | 2 | ✓ Closing fragment |
| 10-16 23:33 | 40m | -12 / - | CT1BFP | - / -7 | 2 | ✓ Closing fragment |
| 10-16 23:31 | 40m | -10 / -13 | OK3MB | -6 / -19 | 7 | ✓ Full exchange observed |
| 10-16 23:26 | 40m | -10 / - | W5AJ | - / -18 | 2 | ✓ Closing fragment |
| 10-16 23:20 | 40m | -11 / - | WV9L | - / -11 | 2 | ✓ Closing fragment |
| 10-16 23:17 | 40m | -8 / - | K5YT | - / -10 | 2 | ✓ Closing fragment |
| 10-16 23:17 | 40m | -10 / - | RL3T | +2 / -3 | 4 | Partial capture |
| 10-16 23:13 | 40m | -10 / - | PD0WC | - / -19 | 3 | ✓ Closing fragment |
| 10-16 23:09 | 40m | -10 / -12 | F1IQH | +5 / 0 | 6 | ✓ Full exchange observed |
| 10-16 23:06 | 40m | - / -15 | R4FDK | -3 / - | 4 | ✓ Closing fragment |
| 10-16 23:04 | 40m | -6 / - | DJ0JG | - / -20 | 2 | ✓ Closing fragment |
| 10-16 22:57 | 40m | - / -15 | RZ4FWA | -8 / - | 3 | ✓ Closing fragment |
| 10-16 22:56 | 40m | -10 / -2 | IQ4JO | -6 / +9 | 4 | ✓ Full exchange observed |
| 10-16 22:51 | 40m | -11 / - | AA1SU | - / 0 | 2 | Partial capture |
| 10-16 22:49 | 40m | -10 / - | KD2WBX | - / -2 | 2 | ✓ Closing fragment |
| 10-13 15:23 | 10m | -23 / - | DL4KSD | - / -5 | 2 | ✓ Closing fragment |
| 10-13 15:06 | 10m | - / -19 | EA5AX | -20 / - | 3 | ✓ Closing fragment |
| 10-13 14:59 | 10m | -19 / - | N5LVP | - / -7 | 2 | ✓ Closing fragment |
| 10-13 14:54 | 10m | -20 / - | KT4U | - / 0 | 2 | Partial capture |
| 10-12 06:01 | 40m | - / -10 | DF0KK | +4 / - | 3 | ✓ Closing fragment |
| 10-12 05:57 | 40m | - / -13 | SP4MPH | -4 / - | 2 | ✓ Closing fragment |
| 10-12 03:34 | 40m | - / - | RA4Y | -9 / - | 2 | Partial capture |
| 10-12 02:56 | 40m | -8 / -19 | HI3CH | -22 / - | 3 | ✓ Closing observed |
| 10-12 02:47 | 40m | -4 / - | KQ4WKP | - / -9 | 2 | ✓ Closing fragment |
| 10-12 02:38 | 40m | -8 / - | WA2HIP | - / +10 | 2 | ✓ Closing fragment |
| 10-12 02:17 | 40m | -4 / -17 | SV5AZK | -20 / -11 | 4 | ✓ Full exchange observed |
| 10-12 02:13 | 40m | -4 / - | N9SVG | - / -12 | 2 | ✓ Closing fragment |
| 10-12 01:13 | 40m | -2 / - | AI5DZ | - / -6 | 2 | ✓ Closing fragment |
| 10-11 23:25 | 40m | - / -23 | UX5UO | -10 / - | 2 | ✓ Closing fragment |
| 10-11 23:13 | 40m | - / +7 | AN5CV | -10 / - | 2 | Partial capture |
| 10-11 23:12 | 40m | -18 / - | KR4AZH | - / -2 | 2 | ✓ Closing fragment |
| 10-11 22:57 | 40m | - / -1 | AN5CV | -14 / - | 2 | Partial capture |
| 10-11 22:47 | 40m | -20 / - | RD7O | -23 / -4 | 3 | ✓ Closing observed |
| 10-11 22:36 | 40m | -22 / -14 | EA5JLB | -19 / -17 | 6 | ✓ Full exchange observed |
| 10-11 05:25 | 40m | -9 / -9 | IK2SND | +4 / -12 | 6 | ✓ Full exchange observed |
| 10-11 05:17 | 40m | -10 / - | IU8RFW | -6 / +8 | 3 | Partial capture |
| 10-11 04:53 | 40m | - / +10 | DA1MK | -11 / - | 2 | ✓ Closing fragment |
| 10-11 04:43 | 40m | +4 / - | HA3TBL | - / -11 | 2 | ✓ Closing fragment |
| 10-11 04:42 | 40m | +9 / - | MM3JFM | - / -15 | 2 | ✓ Closing fragment |
| 10-11 04:34 | 40m | -5 / - | K0MVH | - / -9 | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 001500 -6 334 CQ EA7R IM66 (x3) 001615 -14 339 EA7R RX9WM LO74 001630 -3 334 RX9WM EA7R +02 001645 -1 339 EA7R RX9WM R-16 001700 -3 334 RX9WM EA7R RR73 001715 +0 339 EA7R RX9WM 73 001730 -2 334 CQ EA7R IM66 (x2) 001830 -2 334 EI7JQ EA7R +00 (x2) 001915 -12 333 EA7R EI7JQ 73 001930 -3 334 KN1B EA7R +01 (x2)
UTC dB Audio Message 145830 -23 1499 CQ EA7R IM66 145900 -19 1499 N5LVP EA7R -07 (x2) 150030 -21 1499 K1VK EA7R +18 150200 -21 1500 DO1ASB EA7R -08 150645 -20 2016 EA7R EA5AX -19 150700 -20 1500 CQ EA7R IM66 150745 -16 2016 EA7R EA5AX -19 (x2) 151000 -22 1501 HG1DRC EA7R RR73 151400 -21 1501 SV5BYP EA7R -12 152130 -24 1503 CQ EA7R IM66 a1 (x2) 152330 -24 1502 DL4KSD EA7R -05 (x2)
UTC dB Audio Message 220945 -6 2912 RI1FJL EA7R IM66 (x14) 223545 -1 2760 9T0MD EA7R IM66
UTC dB Audio Message 213515 +4 2737 9T0MD EA7R IM66 (x15)
UTC dB Audio Message 150115 +5 2723 EA7R F4IDN R+03 150130 -5 2443 F4IDN EA7R RR73 150145 +4 2723 EA7R F4IDN 73 150200 -9 2442 CQ EA7R IM66 (x2) 150330 -2 2443 IU4DTV EA7R RR73 150400 -1 2443 CQ EA7R IM66 (x2) 150515 -8 2442 EA7R F1EUC JO00 150530 -1 2443 F1EUC EA7R -01 150545 -9 2442 EA7R F1EUC R-02 150600 -1 2443 F1EUC EA7R RR73 150615 -9 2442 EA7R F1EUC 73 150700 -2 2443 CQ EA7R IM66 (x2)
UTC dB Audio Message 223100 -18 2042 EA7R IU5HIU JN53 (x2) 225015 +6 2527 RI1FJL EA7R IM66 (x7) 212100 -15 299 EA7R RR73; SP8VJV <...> -14
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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