EA1CU — 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: IN83

Receiver-side FT8 activity involving EA1CU, decoded by SO8OO in southeastern Poland. 82 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-10-20.

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 82 FT8 messages attributed to EA1CU as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (84%), followed by 20 m (13%) and 80 m (2%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 2 40m · 69 20m · 11

First attributed message: 2026-06-11
Last attributed message: 2026-10-20 17:38 UTC

Observed FT8 message patterns

Attributed sample: 82 messages
Active dates: 10 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 42, strong (≥ -8 dB) 21.

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 EA1CU in decoded directed-looking exchanges:

A61FJ · United Arab Emirates DL9KM · Fed. Rep. of Germany F3CJ · France IS0YHV · Sardinia M7EMH · England SP9GCZ · Poland E75C · Bosnia-Herzegovina

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 EA1CU

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: IN83 · 44 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,010 km (approx.)
Last such locator decoded: 2026-10-20 17:19 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	EA1CU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-20 17:29	40m	-14 / -3	DL9KM	-4 / -3	18	✓ Full exchange observed
10-20 17:28	40m	-21 / -	F3CJ	-13 / +4	2	✓ Closing observed
10-20 17:25	40m	- / -	UB3ZKO	-6 / -	3	Partial capture
10-20 17:25	40m	-14 / -	EB2EMZ	- / -2	3	Partial capture
10-20 17:20	40m	- / -	UB3ZKO	-4 / -	4	Partial capture
10-20 17:20	40m	- / -	SP2KW	-2 / -	2	Partial capture
10-20 17:19	40m	- / -	HF5A	+2 / -	2	Partial capture
10-01 19:59	80m	-12 / -	PB0ACU	- / -	2	Partial capture
10-01 19:02	40m	-4 / -	IS0YHV	- / -5	9	✓ Closing fragment
10-01 19:00	40m	-12 / -	SP9GCZ	- / -9	3	✓ Closing fragment
08-24 17:43	20m	-4 / -	BG7BMG	- / -	2	Partial capture
08-23 19:05	40m	-9 / -	MW8ANT	- / -	8	Partial capture
08-23 19:01	40m	-11 / +2	M7EMH	-19 / -	3	✓ Closing observed
08-23 15:54	10m	- / -9	A61FJ	-22 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
173115 -15 1843  DL9KM EA1CU -03 (x2)
173200  -1 1604  EA1CU DL9KM R-03 (x3)
173315 -13 1844  DL9KM EA1CU -03 (x3)
173500  -6 1604  EA1CU DL9KM R-03 (x2)
173545 -10 1844  DL9KM EA1CU -03
173600  -1 1604  EA1CU DL9KM R-03 (x2)
173815 -14 1844  DL9KM EA1CU RR73
173830  -2 1604  EA1CU DL9KM 73

80m

UTC    dB Audio  Message
195530 -10 1591  EA1CU E75C RR73
195930  -8 1691  PB0ACU EA1CU IN83 (x2)

20m

UTC    dB Audio  Message
174245  -4  750  BG2GWN EA1CU IN83
174345  -4 2274  BG7BMG EA1CU IN83 (x2)

10m

UTC    dB Audio  Message
155445 -19 1710  EA1CU A61FJ -09 (x2)

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

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