EA7CI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA7CI, decoded by SO8OO in southeastern Poland. 69 FT8 messages attributed to this token as transmitter, on 60m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-09-30.
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 69 FT8 messages attributed to EA7CI as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (62%), followed by 20 m (19%) and 10 m (19%). Several six-hour UTC windows tied for the largest share (62%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-09-30 17:25 UTC
Observed FT8 message patterns
- Attributed sample
- 69 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -20 to -7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 38, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 9.
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 EA7CI 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 EA7CI
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 · 36 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,538 km (approx.)
- Last such locator decoded
- 2026-09-30 17:24 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 | EA7CI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-30 17:24 | 60m | -18 / +4 | HB9CZF | +2 / -14 | 4 | ✓ Full exchange observed |
| 09-30 17:19 | 60m | -17 / -8 | PA3ATZ | -14 / -14 | 7 | ✓ Full exchange observed |
| 09-30 17:15 | 60m | - / - | F5LMJ | -20 / - | 5 | Partial capture |
| 09-30 17:14 | 60m | -23 / +4 | DL4YDR | -8 / -17 | 5 | ✓ Full exchange observed |
| 09-30 11:05 | 10m | -18 / - | OK2XCG | - / -7 | 3 | ✓ Closing fragment |
| 09-27 19:07 | 60m | -17 / -11 | DL7UKM | -10 / -16 | 5 | ✓ Full exchange observed |
| 09-27 19:04 | 60m | - / -8 | DL1MST | -14 / - | 3 | ✓ Closing fragment |
| 09-25 19:30 | 60m | -14 / -2 | F1PBZ | 0 / - | 4 | ✓ Full exchange observed |
| 09-25 19:28 | 60m | - / -6 | HA3PG | -15 / - | 3 | ✓ Closing fragment |
| 09-25 19:27 | 60m | -14 / +7 | EB1LA | -12 / -7 | 5 | ✓ Full exchange observed |
| 09-25 19:27 | 60m | - / - | SP5JMA | +1 / - | 5 | Partial capture |
| 09-25 19:27 | 60m | - / - | SP5MXY | -14 / - | 4 | Partial capture |
| 09-24 19:18 | 60m | -12 / -5 | G6GN | -9 / - | 4 | ✓ Closing observed |
| 09-24 19:08 | 60m | -14 / +5 | IK4CBO | -2 / -6 | 8 | ✓ Full exchange observed |
| 09-24 19:08 | 60m | -16 / -2 | OH1LA | -14 / -16 | 6 | ✓ Full exchange observed |
| 08-30 12:00 | 20m | +2 / - | OH1LA | - / -14 | 3 | ✓ Closing fragment |
| 08-27 11:59 | 20m | - / - | F4HSB | +2 / - | 3 | Partial capture |
| 08-27 11:59 | 20m | - / +1 | PA0ARR | -6 / - | 5 | Partial capture |
| 08-27 11:54 | 20m | - / -5 | IZ1HJU | -6 / - | 4 | ✓ Closing fragment |
| 08-27 11:54 | 20m | - / - | PC9F | +18 / - | 3 | Partial capture |
| 08-13 21:17 | 60m | - / -15 | PE1MHY | -13 / - | 2 | ✓ Closing fragment |
| 07-30 12:11 | 20m | - / 0 | RN6MA | -14 / - | 2 | ✓ Closing fragment |
| 07-22 14:49 | 20m | - / - | DK5DW | -7 / - | 5 | Partial capture |
| 07-13 09:30 | 20m | - / - | OK1DBE | -12 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 171915 -17 1649 EA7CI PA3ATZ JO23 172030 -18 1650 CQ EA7CI IM77 (x2) 172115 -14 1650 EA7CI PA3ATZ JO23 172130 -17 1649 PA3ATZ EA7CI -14 172145 -9 1649 EA7CI PA3ATZ R-08 172200 -16 1650 PA3ATZ EA7CI RRR 172215 -16 1650 EA7CI PA3ATZ 73 172230 -19 1650 PA3ATZ EA7CI 73 172330 -24 1650 CQ EA7CI IM77 (x2) 172415 +2 2193 EA7CI HB9CZF +04 172430 -16 1650 HB9CZF EA7CI R-14 172445 +2 2193 EA7CI HB9CZF RR73 172500 -19 1650 HB9CZF EA7CI 73
UTC dB Audio Message 110430 -17 1430 CQ EA7CI IM77 110500 -19 1430 OK2XCG EA7CI -07 (x3) 110700 -16 1430 CQ EA7CI IM77 (x2) 110830 -18 1429 YO9BZK EA7CI 73 111000 -16 1430 CQ EA7CI IM77 (x6)
UTC dB Audio Message 115530 +19 761 EA7CI PC9F JO32 115530 -7 2199 EA7CI IZ1HJU R-05 (x2) 115800 -8 1433 EA7CI DL1SRS JN49 115930 -4 1431 EA7CI PA0ARR +01 115930 +0 1746 EA7CI F4HSB JN37 120000 -9 1431 EA7CI PA0ARR +01 120000 +1 1746 EA7CI F4HSB JN37 120030 -6 1432 EA7CI PA0ARR +01 120030 +4 1746 EA7CI F4HSB JN37 120100 +0 1431 EA7CI PA0ARR +01 (x2) 120015 +3 1251 OH1LA EA7CI -14 (x3)
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee