EA3CFV — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA3CFV, decoded by SO8OO in southeastern Poland. 407 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-09.
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 407 FT8 messages attributed to EA3CFV as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (89%), followed by 10 m (7%) and 40 m (3%). Most decodes (66%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-09-09 05:18 UTC
Observed FT8 message patterns
- Attributed sample
- 407 messages
- Active dates
- 30 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -17 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 55, moderate (-15 to -9 dB) 109, strong (≥ -8 dB) 243.
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 EA3CFV 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 EA3CFV
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
- JN11 · 231 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,727 km (approx.)
- Last such locator decoded
- 2026-09-09 05:18 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 | EA3CFV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 17:59 | 40m | - / -10 | DG9FEH | +2 / - | 2 | ✓ Closing fragment |
| 09-13 17:46 | 40m | - / -19 | PD2BKB | -16 / - | 3 | Partial capture |
| 09-13 08:31 | 40m | - / -17 | DD7EE | -13 / - | 2 | Partial capture |
| 09-09 15:32 | 40m | - / -26 | YO2LLL | +16 / - | 3 | Partial capture |
| 09-09 15:08 | 40m | - / -21 | F5MKD | -1 / - | 2 | ✓ Closing fragment |
| 09-09 15:02 | 40m | - / -17 | PH2W | -20 / - | 2 | ✓ Closing fragment |
| 09-09 14:55 | 40m | - / -14 | PA3BMB | -3 / - | 2 | ✓ Closing fragment |
| 09-09 14:33 | 40m | - / -20 | PA7ZZ | -6 / - | 2 | ✓ Closing fragment |
| 09-09 06:09 | 40m | - / -1 | DF8MH | -12 / - | 2 | ✓ Closing fragment |
| 09-09 06:03 | 40m | - / - | IU8RFW | -9 / - | 3 | Partial capture |
| 09-09 05:43 | 40m | - / -3 | ON1DGN | -18 / - | 2 | ✓ Closing fragment |
| 09-08 19:43 | 40m | - / -10 | PD1SL | -12 / - | 2 | Partial capture |
| 09-08 19:32 | 40m | -7 / - | M9PCA | -8 / - | 2 | ✓ Closing observed |
| 09-08 19:18 | 40m | -12 / - | GW0XMG | - / - | 3 | Partial capture |
| 09-08 19:11 | 40m | - / -7 | G3EFG | -9 / - | 2 | Partial capture |
| 09-08 18:57 | 40m | - / -9 | F4DVP | -14 / - | 2 | ✓ Closing fragment |
| 09-05 04:46 | 40m | - / -5 | SA3LEN | -10 / - | 2 | ✓ Closing fragment |
| 09-03 04:44 | 40m | - / -16 | F5OAM | -2 / - | 3 | ✓ Closing fragment |
| 09-02 15:42 | 40m | - / -15 | 9A5JU | -4 / - | 2 | ✓ Closing fragment |
| 09-02 04:38 | 80m | - / -4 | S57WO | -21 / - | 2 | ✓ Closing fragment |
| 09-02 04:29 | 80m | - / -9 | IR7MGGC | -14 / - | 2 | Partial capture |
| 09-02 04:11 | 80m | - / -11 | 9A2TN | -3 / - | 2 | ✓ Closing fragment |
| 09-01 05:18 | 40m | - / -7 | DM1MT | -3 / - | 2 | Partial capture |
| 08-31 19:41 | 20m | -2 / - | PA2HD | - / - | 3 | Partial capture |
| 08-31 19:38 | 20m | -8 / - | YO9ADN | - / -11 | 3 | ✓ Closing fragment |
| 08-31 19:34 | 20m | -3 / - | IZ1CRA | - / -20 | 4 | ✓ Closing fragment |
| 08-31 19:22 | 20m | +4 / - | II7MGBA | - / -8 | 2 | Partial capture |
| 08-31 19:19 | 20m | -9 / -9 | M7BUY | -13 / -5 | 5 | ✓ Full exchange observed |
| 08-31 19:17 | 20m | +6 / - | EA2AA | - / - | 2 | Partial capture |
| 08-31 19:15 | 20m | -4 / - | R9FDM | - / -18 | 3 | ✓ Closing fragment |
| 08-31 19:04 | 20m | -3 / - | Z31PM | - / -18 | 5 | Partial capture |
| 08-31 19:03 | 20m | 0 / - | M7JVT | +7 / +1 | 4 | ✓ Closing observed |
| 08-31 19:02 | 20m | +3 / - | EA8VD | - / - | 2 | Partial capture |
| 08-31 18:56 | 20m | +6 / - | ES4TRI | - / -17 | 8 | ✓ Closing fragment |
| 08-31 18:54 | 20m | +4 / - | OZ7ET | - / -20 | 2 | ✓ Closing fragment |
| 08-31 18:53 | 20m | +4 / - | TC30AUG | - / -10 | 2 | Partial capture |
| 08-31 18:51 | 20m | +6 / - | OZ7ET | - / - | 2 | Partial capture |
| 08-31 18:47 | 20m | -1 / - | MI7XHT | - / -3 | 3 | ✓ Closing fragment |
| 08-31 11:29 | 20m | -6 / - | OK1CT/QRP | - / - | 2 | Partial capture |
| 08-31 11:29 | 20m | -6 / - | DL1DVE/P | - / - | 2 | Partial capture |
| 08-31 09:56 | 20m | -14 / - | 9A5WA | - / - | 2 | Partial capture |
| 08-30 21:21 | 20m | -2 / - | M8NDF | - / +4 | 2 | Partial capture |
| 08-30 20:39 | 20m | +1 / - | DJ0SO | -2 / -23 | 4 | ✓ Closing observed |
| 08-30 20:32 | 20m | -6 / - | <...> | - / -9 | 2 | Partial capture |
| 08-30 05:39 | 20m | +7 / - | OH0/ES2TT | - / - | 2 | Partial capture |
| 08-30 05:37 | 20m | -11 / - | OH8MXJ | - / - | 3 | Partial capture |
| 08-28 07:39 | 40m | - / -13 | 9A7BB | -21 / - | 2 | ✓ Closing fragment |
| 08-27 19:34 | 40m | -24 / -7 | F6CCS | -3 / - | 4 | ✓ Full exchange observed |
| 08-27 19:33 | 40m | - / -7 | PD2NBE | -8 / - | 4 | Partial capture |
| 08-27 19:29 | 40m | - / -17 | OZ9FF | -2 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 151630 -5 2845 EA3CFV HB9MXY RR73 153245 +17 2894 EA3CFV YO2LLL R-26 (x3) 084115 -21 1413 EA3CFV PA5VEN RR73 083115 -12 1867 EA3CFV DD7EE -17 (x3) 173400 -6 459 EA3CFV AM42SDC -14 174430 -9 1094 EA3CFV EA1RT -02 174600 -15 2137 EA3CFV PD2BKB -19 (x3) 175915 +1 675 EA3CFV DG9FEH -10 (x2)
UTC dB Audio Message 203900 -5 1131 EA3CFV II3RITN -18 203915 -23 1131 II3RITN EA3CFV R-02 204030 +4 1017 EA3CFV IK3BVD -17 (x2) 204315 -6 1320 EA3CFV EB5JKV RR73 (x2) 040945 -10 1143 EA3CFV HB10GBT -01 041145 -2 645 EA3CFV 9A2TN -11 (x2) 041400 -16 1760 EA3CFV 9A60CBM -16 042300 +0 2039 EA3CFV HF100PKP -14 042930 -15 1698 EA3CFV IR7MGGC -09 (x2) 043800 -24 2399 EA3CFV S57WO -04 (x2)
UTC dB Audio Message 192030 -12 1682 EA3CFV M7BUY RR73 192045 -8 1682 M7BUY EA3CFV 73 192215 +5 699 II7MGBA EA3CFV JN11 (x2) 193415 -5 994 IZ1CRA EA3CFV JN11 (x4) 193815 -10 1786 YO9ADN EA3CFV JN11 (x3) 194130 -3 675 PA2HD EA3CFV JN11 (x3) 194400 +1 873 9A6GUO EA3CFV JN11
UTC dB Audio Message 185930 -8 589 EA3CFV SX0W -14 (x2) 172930 +2 1764 EA3CFV HZ1TT -23 192700 -12 2221 EA3CFV PE0TS -09 (x2) 091115 -6 2713 EA3CFV IQ4JO -01 (x2) 155930 -20 1488 EA3CFV SV3CKF -01 185845 -2 2869 EA3CFV DF1VV +09 (x2) 190530 -17 1992 EA3CFV F4HTA +00 193230 -18 1025 EA3CFV HB9BNV 73 195215 -17 837 EA3CFV UA4FKT LO23 174545 -16 822 EA3CFV M0BEW 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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