EA4IF — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM89

Receiver-side FT8 activity involving EA4IF, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-23 and 2026-10-22.

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 32 FT8 messages attributed to EA4IF as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (94%), followed by 40 m (6%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

80m · 30 40m · 2

First attributed message: 2026-09-23
Last attributed message: 2026-10-22 18:26 UTC

Observed FT8 message patterns

Attributed sample: 32 messages
Active dates: 2 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -14 to -3 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 14.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with EA4IF in decoded directed-looking exchanges:

HB9DVO · Switzerland ×2 EA1Z · Spain KD2YQS · United States PC2J · Netherlands UA4FKT · European Russia

Most frequent locator attributed to EA4IF

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: IM89 · 6 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,261 km (approx.)
Last such locator decoded: 2026-09-23 19:20 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	EA4IF S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 18:25	40m	0 / +2	EA1Z	-8 / 0	4	✓ Full exchange observed
09-23 19:19	80m	-22 / -19	RI1FJZ	-17 / -	5	Partial capture
09-23 02:54	80m	- / -	9A5E	+10 / -	3	Partial capture
09-23 02:54	80m	-9 / +1	PC2J	-10 / -12	9	✓ Full exchange observed
09-23 02:52	80m	-11 / -	KD2YQS	- / -	2	✓ Closing fragment
09-23 02:50	80m	- / -13	RN6HK	0 / -	2	Partial capture
09-23 02:48	80m	- / -	9A5E	+7 / -	2	Partial capture
09-23 02:44	80m	-10 / -13	RN6HK	+9 / -7	9	Partial capture
09-23 02:39	80m	-9 / -	SN100PKP	- / -14	6	Partial capture
09-23 02:38	80m	-5 / -	LZ936BA	- / -14	2	Partial capture
09-23 02:35	80m	-7 / -9	UA4FKT	+5 / -8	9	✓ Full exchange observed
09-22 19:34	80m	- / -	IU8MHG	-1 / -	3	Partial capture
09-21 15:58	40m	- / -	OE8PIT	+6 / -	4	Partial capture
09-21 15:56	40m	- / -13	M7HET	-11 / -	3	Partial capture
09-21 15:45	40m	- / -6	HB9DVO	+4 / -	10	✓ Closing fragment
09-21 15:44	40m	- / -13	ON1DGN	-7 / -	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
155000  +2 2883  EA4IF HB9DVO 73 (x2)
155200 -17 1827  EA4IF G3XWH IO94
155230 -18 1827  EA4IF M7HET IO91 (x4)
155800  +7  342  EA4IF OE8PIT JN66 (x4)
182545 -10 1191  EA4IF EA1Z +02
182600  -1 1192  EA1Z EA4IF R+00
182615  -7 1191  EA4IF EA1Z RR73
182630  +1 1192  EA1Z EA4IF 73

80m

UTC    dB Audio  Message
025530 -13 1782  EA4IF PC2J R+01
025530  +6 1972  EA4IF 9A5E JN75
025545  -9 1450  PC2J EA4IF -12
025600  -5 1782  EA4IF PC2J R+01
025615 -10 1450  PC2J EA4IF RR73
025630  -7 1782  EA4IF PC2J 73
025645 -10 1450  PC2J EA4IF RR73
025715 -12 1450  CQ EA4IF IM89
025800 -18 1451  EA4IF R4FDD LO33
191915 -23 1449  RI1FJZ EA4IF IM89
192000 -13 1202  EA4IF RI1FJZ -19
192015 -20 1449  RI1FJZ EA4IF IM89
192030 -18 1202  EA4IF RI1FJZ -19 (x2)
192130 -20 1202  EA4IF RR73; SP7FSA <RI1FJZ> -18

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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