EA4IFI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IN70

Receiver-side FT8 activity involving EA4IFI, decoded by SO8OO in southeastern Poland. 130 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.

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 130 FT8 messages attributed to EA4IFI as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (78%), followed by 40 m (22%). Most decodes (65%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

130

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

40m · 28 20m · 102

First attributed message: 2026-06-06
Last attributed message: 2026-09-20 00:18 UTC

Observed FT8 message patterns

Attributed sample: 130 messages
Active dates: 8 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -16 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 52, strong (≥ -8 dB) 62.

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 EA4IFI in decoded directed-looking exchanges:

CR5VP · Portugal ×4 EA1FNT · Spain IK4LZH · Italy IU5VLR · Italy OK1HEH · Czech Republic ON1DGN · Belgium RZ6AKF · European Russia TA1BX · European Turkey

Most frequent locator attributed to EA4IFI

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: IN70 · 83 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,329 km (approx.)
Last such locator decoded: 2026-09-19 23:58 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	EA4IFI S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 00:17	40m	-16 / -	T46W	- / -3	2	Partial capture
09-19 23:56	40m	- / -	TA3NK	-1 / -	8	Partial capture
09-19 23:44	40m	-16 / 0	F1IQH	-6 / -4	3	Partial capture
09-19 23:44	40m	-15 / -3	ON1DGN	-2 / -15	4	✓ Full exchange observed
09-19 23:44	40m	-16 / -	TA3NK	-5 / -11	5	Partial capture
08-16 20:12	40m	- / -2	CR5VP	-18 / -	2	✓ Closing fragment
08-15 20:28	20m	- / -15	CR5VP	-10 / -	8	✓ Closing fragment
08-13 23:26	40m	- / +1	IU5VLR	-16 / -	3	✓ Closing fragment
08-11 20:57	80m	- / -6	CR5VP	-18 / -	2	✓ Closing fragment
08-09 19:36	80m	- / -11	CR5VP	-15 / -	2	✓ Closing fragment
07-07 23:37	40m	- / -	DF3QL	-6 / -	4	Partial capture
07-07 22:03	40m	- / -19	RZ6AKF	-2 / -	2	✓ Closing fragment
07-07 21:37	40m	- / -9	OK1HEH	-16 / -	2	✓ Closing fragment
07-07 21:27	40m	- / -16	HA3GX	-10 / -	2	Partial capture
07-07 21:12	40m	- / -7	TA1BX	-16 / -	2	✓ Closing fragment
07-07 20:53	40m	- / -2	IK4LZH	-2 / -	4	✓ Closing fragment
07-07 20:07	40m	- / -	OK1FED	-3 / -	2	Partial capture
07-07 20:03	40m	- / -	IK4LZH	0 / -	3	Partial capture
07-07 20:03	40m	- / -15	RX3ASQ	-16 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
235245 -16  832  CQ EA4IFI IN70 (x4)
235630  +4  832  EA4IFI TA3NK KM39 (x4)
235815 -15  832  CQ EA4IFI IN70
235830  +1  832  EA4IFI TA3NK KM39 (x4)
001700 -14  833  T46W EA4IFI -03 (x2)

20m

UTC    dB Audio  Message
190930  -6  842  CR5VP EA4IFI IN70
202845 -10 1671  EA4IFI CR5VP -15 (x8)

80m

UTC    dB Audio  Message
193600 -17 1294  EA4IFI CR5VP -11 (x4)

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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