EA1CLT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IN52

Receiver-side FT8 activity involving EA1CLT, decoded by SO8OO in southeastern Poland. 86 FT8 messages attributed to this token as transmitter, on 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-19 and 2026-08-19.

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 86 FT8 messages attributed to EA1CLT as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (83%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

86
Messages attributed
5
UTC dates decoded
13
Active 15-min windows
-12 dB
Estimated median S/N

Bands

20m · 86
First attributed message: 2026-06-19
Last attributed message: 2026-08-19 17:28 UTC

Observed FT8 message patterns

Attributed sample
86 messages
Active dates
5 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-21 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 28, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 25.

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 EA1CLT 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 EA1CLT

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
IN52 · 38 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,488 km (approx.)
Last such locator decoded
2026-08-19 17:22 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 UTCBandEA1CLT S/NCounterpartCounterpart S/NMsgsCapture
08-19 17:28 20m -22 / - EW1MN - / -15 2 ✓ Closing fragment
08-19 17:22 20m -18 / - TA3HF - / -12 3 Partial capture
07-16 19:43 20m - / - F1PPH -15 / - 2 Partial capture
07-16 19:41 20m -14 / - VE1MDF - / -18 2 ✓ Closing fragment
07-16 19:38 20m -20 / - TA4KO - / -12 2 ✓ Closing fragment
07-16 19:37 20m -19 / - OH1LA - / - 2 ✓ Closing fragment
07-16 19:32 20m -18 / - EW3DK - / -12 2 Partial capture
07-16 19:31 20m - / - RZ4FWA -8 / - 7 Partial capture
07-12 22:38 20m -10 / - G6HNJ - / -16 7 ✓ Closing fragment
07-12 22:35 20m -8 / - W0UV - / -14 3 Partial capture
07-12 22:33 20m -8 / - RN6MA - / -5 2 ✓ Closing fragment
07-12 22:30 20m -12 / - K0IDX - / -19 3 Partial capture
07-12 22:27 20m -6 / - ON3VZ - / -13 3 ✓ Closing fragment
07-12 22:24 20m -9 / - SP5ETF - / -16 2 ✓ Closing fragment
07-12 22:22 20m -6 / - R4FDW - / -16 2 ✓ Closing fragment
07-12 10:06 20m - / - DL7APJ -6 / - 3 Partial capture
07-12 09:52 20m -17 / - LZ1BT - / -19 3 ✓ Closing fragment
07-12 09:44 20m - / - DL1R -4 / - 5 Partial capture
07-10 20:16 20m -6 / - HH2K - / -11 2 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

20m 
UTC    dB Audio  Message
194215 -12 2066  VE1MDF EA1CLT RR73
194245 -11 2066  CQ EA1CLT IN52 (x2)
194330 -16 2065  EA1CLT F1PPH JN25
194345 -14 2065  CQ EA1CLT IN52
194430 -14 2065  EA1CLT F1PPH JN25
194545 -10 2066  4Z5MY EA1CLT 73
170930 -18 2181  CR7BRV EA1CLT IN52
171700 -21 2181  YO4DWD EA1CLT IN52
172215 -17 2180  TA3HF EA1CLT IN52 (x3)
172615 -22 2181  <...> EA1CLT -12
172815 -21 2182  EW1MN EA1CLT -15 (x2)
40m 
UTC    dB Audio  Message
221430  -2 2758  EA1CLT MI0OBC 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.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee