EA5FDA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM97

Receiver-side FT8 activity involving EA5FDA, decoded by SO8OO in southeastern Poland. 95 FT8 messages attributed to this token as transmitter, on 20m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-25.

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 95 FT8 messages attributed to EA5FDA as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -7 dB.

Overview

95
Messages attributed
15
UTC dates decoded
24
Active 15-min windows
-7 dB
Estimated median S/N

Bands

20m · 95
First attributed message: 2026-06-08
Last attributed message: 2026-08-25 17:32 UTC

Observed FT8 message patterns

Attributed sample
95 messages
Active dates
15 UTC dates
Estimated median S/N
-7 dB
Estimated 10th-90th percentile
-13 to +3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 58.

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 EA5FDA 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 EA5FDA

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
IM97 · 42 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
2,280 km (approx.)
Last such locator decoded
2026-08-25 17:32 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 UTCBandEA5FDA S/NCounterpartCounterpart S/NMsgsCapture
08-25 17:31 20m -6 / - ZS6KVZ - / - 2 Partial capture
08-25 17:30 20m 0 / - YB7CC - / - 2 Partial capture
08-24 17:41 20m +10 / -1 F4BYA +13 / -10 5 ✓ Full exchange observed
08-24 17:40 20m +6 / - DL1R - / -13 6 ✓ Closing fragment
08-24 17:37 20m 0 / - UZ5DM - / +6 2 ✓ Closing fragment
08-20 18:19 20m -10 / - BG7BVI - / - 2 Partial capture
08-19 17:48 20m -4 / - VU2LMO - / - 3 Partial capture
08-16 18:40 20m -4 / - KA9FOX - / - 2 Partial capture
08-10 18:13 10m - / -9 F6JON/QRP -22 / - 2 Partial capture
08-07 18:17 20m -7 / - GI5CEO - / - 3 Partial capture
08-07 18:13 20m -9 / - EP2AES - / - 2 Partial capture
08-07 17:44 20m -10 / - 9M2HUS - / -15 4 Partial capture
08-01 18:25 20m -6 / - JH5AVM - / - 2 Partial capture
08-01 18:19 20m -6 / - JO1LVZ - / -13 4 ✓ Closing fragment
07-25 18:28 20m -13 / - BD8ELZ - / -23 5 Partial capture
07-25 18:11 20m -10 / - UN0GY - / -9 2 Partial capture
07-25 18:08 20m - / -14 DJ1TU -15 / - 3 Partial capture
07-25 18:06 20m -10 / - PD1HBL - / -11 2 ✓ Closing fragment
07-25 18:06 20m - / -7 IS0KNG -12 / - 5 ✓ Closing fragment
07-20 18:07 20m - / -18 JH5AVM -21 / - 3 Partial capture
07-20 18:04 20m -10 / - JH5AVM - / - 2 Partial capture
07-12 18:21 40m - / -12 OE8PIT -4 / - 3 ✓ Closing fragment
07-12 18:17 40m - / -20 OK2CLW -9 / - 2 ✓ Closing fragment
07-12 18:03 20m -8 / - JR6AG - / -24 4 Partial capture
07-12 17:59 20m -9 / - YH3AE - / -17 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
174115  -3 2818  EA5FDA F4BYA JN19
174130 +14 1103  F4BYA EA5FDA -10
174145 +23 2817  EA5FDA F4BYA R-01
174200  +5 1103  F4BYA EA5FDA RR73
174215 +20 2817  EA5FDA F4BYA 73
174300  +3 1103  DL1R EA5FDA -02 (x3)
174500  +4 1102  CQ EA5FDA IM97
174545  +6 2064  EA5FDA F6BHK JN24
174545 -11 1824  EA5FDA BH4ECL PM01
173000  +4 1026  YB7CC EA5FDA IM97 (x2)
173130  -7 1025  ZS6KVZ EA5FDA IM97 (x2)
10m 
UTC    dB Audio  Message
174215  -2 2732  EA5FDA F1PBZ -05
174445 -10 2410  EA5FDA PD3FJJ RR73
181345 -24 1860  EA5FDA F6JON/QRP -09 (x2)
40m 
UTC    dB Audio  Message
181730 -10 1614  EA5FDA OK2CLW -20 (x2)
181830 -10 2717  EA5FDA PE1NPS JO22
182115  -4  341  EA5FDA OE8PIT -12 (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.

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