EA1RCU — 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: IN72

Receiver-side FT8 activity involving EA1RCU, decoded by SO8OO in southeastern Poland. 112 FT8 messages attributed to this token as transmitter, on 60m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-10-31.

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 112 FT8 messages attributed to EA1RCU as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (77%), followed by 60 m (23%). Several six-hour UTC windows tied for the largest share (77%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (78%); the estimated median was +1 dB.

Overview

112

Messages attributed

UTC dates decoded

Active 15-min windows

+1 dB

Estimated median S/N

Bands

60m · 26 10m · 86

First attributed message: 2026-08-29
Last attributed message: 2026-10-31 10:57 UTC

Observed FT8 message patterns

Attributed sample: 112 messages
Active dates: 3 UTC dates
Estimated median S/N: +1 dB
Estimated 10th-90th percentile: -13 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 87.

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 EA1RCU in decoded directed-looking exchanges:

5R8IC · Madagascar CT3CK · Madeira Islands CT3IQ · Madeira Islands D2ACE · Angola E74PA · Bosnia-Herzegovina EA8UP · Canary Islands EX8ABQ · Kyrgyzstan OD5ZZ · Lebanon OK2BQW · Czech Republic R1AV · European Russia RN6HGI · European Russia S9R · Sao Tome & Principe

Most frequent locator attributed to EA1RCU

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: IN72 · 38 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,206 km (approx.)
Last such locator decoded: 2026-10-31 10:55 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	EA1RCU S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-31 10:53	10m	+2 / -	S9R	- / -9	7	✓ Closing fragment
10-31 10:52	10m	0 / -	SV2CLJ	- / -15	3	✓ Closing fragment
10-31 10:50	10m	+1 / -	CT3IQ	- / 0	3	✓ Closing fragment
10-31 10:46	10m	+2 / -	SQ9DDH	- / -25	5	✓ Closing fragment
10-31 10:45	10m	+2 / -	S9R	- / -	2	Partial capture
10-31 10:42	10m	0 / -	EW1MN	- / -7	3	Partial capture
10-31 10:42	10m	0 / -	US5WDP	- / -14	3	✓ Closing fragment
10-31 10:40	10m	+1 / -	UR3AHF	- / -16	2	Partial capture
10-31 10:39	10m	-1 / -	E74PA	- / +2	3	✓ Closing fragment
10-31 10:37	10m	-4 / -	CT3CK	- / -11	3	✓ Closing fragment
10-31 10:35	10m	-3 / -15	OD5ZZ	-1 / -19	5	✓ Full exchange observed
10-31 10:34	10m	+7 / -	SV5AZK	- / -21	2	Partial capture
10-31 10:32	10m	+9 / -	OK2BQW	- / -17	3	✓ Closing fragment
10-31 10:30	10m	+5 / -	YO4DWD	- / -14	2	✓ Closing fragment
10-31 10:28	10m	+5 / -	5R8IC	- / -13	4	✓ Closing fragment
10-31 10:25	10m	+4 / -	RN6HGI	- / -6	3	✓ Closing fragment
10-31 10:25	10m	+4 / -	UT1WL	- / +1	3	✓ Closing fragment
10-31 10:23	10m	+8 / -	UW5KW	- / -3	3	✓ Closing fragment
10-31 10:21	10m	+3 / -	UN0GY	- / -7	3	✓ Closing fragment
10-31 10:19	10m	+1 / -	EA8UP	-8 / -3	5	✓ Full exchange observed
10-31 10:18	10m	+4 / -	R1AV	- / -18	2	✓ Closing fragment
10-31 10:17	10m	+5 / -	D2ACE	- / -5	3	✓ Closing fragment
10-31 10:12	10m	+3 / -	C91RU	- / -21	7	Partial capture
10-31 10:11	10m	+3 / -	EX8ABQ	- / -8	3	✓ Closing fragment
10-31 10:09	10m	+4 / -	UN3P	- / -8	3	✓ Closing fragment
09-20 18:59	60m	- / -15	OE3UKW	+6 / -	2	✓ Closing fragment
09-20 18:55	60m	-17 / -10	SM7NDX	+2 / -	4	✓ Closing observed
09-20 18:52	60m	-14 / -10	G0AZH	-6 / -10	4	✓ Full exchange observed
09-20 18:52	60m	-15 / +6	F6HRP	+5 / -	4	✓ Closing observed
09-20 18:49	60m	-14 / -9	SV1DKR	-7 / -	4	✓ Closing observed
09-20 18:48	60m	- / -5	EB3JT	-10 / -	3	✓ Closing fragment
09-20 18:46	60m	- / 0	G4ZFJ	-1 / -	5	✓ Closing fragment
09-20 18:41	60m	- / -1	DK1XAM	-2 / -	3	✓ Closing fragment
09-20 18:40	60m	-15 / -9	DL8UD	+2 / -	4	✓ Closing observed
09-18 18:09	60m	- / -6	DL6ZNG	-10 / -	2	✓ Closing fragment
09-18 18:05	60m	- / -9	EA3EDU	-5 / -	4	✓ Closing fragment
09-18 18:04	60m	- / -13	DM2GM	-12 / -	2	✓ Closing fragment
09-18 18:03	60m	- / -6	F4EJL	-4 / -	2	✓ Closing fragment
09-18 17:58	60m	- / -8	IK4CBO	-12 / -	4	✓ Closing fragment
09-18 17:57	60m	- / -16	DL6ZXG	+3 / -	4	✓ Closing fragment
09-18 17:55	60m	- / -15	SP5JMA	+9 / -	3	✓ Closing fragment
08-29 20:30	60m	- / 0	DL9DBF	-17 / -	4	✓ Closing fragment
08-29 20:29	60m	-12 / -9	SV1QEZ	+5 / -7	6	✓ Full exchange observed
08-29 20:26	60m	- / -	F5JAE	-16 / -	3	✓ Closing fragment
08-29 20:26	60m	-11 / -10	YO6LM	+1 / -10	5	✓ Full exchange observed
08-29 20:26	60m	-10 / -12	SP9UPH	+2 / -8	6	✓ Full exchange observed
08-29 20:25	60m	-10 / -2	DL7ARV	+3 / -8	5	✓ Full exchange observed
08-29 20:24	60m	-13 / -1	G8EHX	-3 / -1	4	✓ Full exchange observed
08-29 20:23	60m	-12 / -	G3SUY	0 / -10	3	✓ Closing observed
08-29 20:21	60m	-10 / -8	OE3OOG	-4 / -6	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
104900  +0 2545  SQ9DDH EA1RCU IN72 (x2)
105030  -3 2545  CT3IQ EA1RCU IN72 (x3)
105215  +2 2545  SV2CLJ EA1RCU IN72 (x3)
105345  +1 2545  S9R EA1RCU IN72 (x7)

60m

UTC    dB Audio  Message
185045  -8 1825  EA1RCU SV1DKR 73
185200 -15 2471  F6HRP EA1RCU IN72
185245  -3  530  EA1RCU G0AZH -10
185300 -14 2471  G0AZH EA1RCU R-10
185315  -6  531  EA1RCU G0AZH RRR
185315  +3  458  EA1RCU F6HRP +06
185345  -9  530  EA1RCU G0AZH 73
185345  +6  458  EA1RCU F6HRP +06 (x2)
185530 -16 2471  SM7NDX EA1RCU IN72
185545  +1 2040  EA1RCU SM7NDX -10 (x2)
185630 -18 2471  SM7NDX EA1RCU 73
185900  +8  588  EA1RCU OE3UKW -15 (x2)

20m

UTC    dB Audio  Message
145630 -12 2175  EA1RCU PE9JAN R-03 (x2)
151215  -4 1694  EA1RCU F4BYA/P 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.

CW

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

Explore CW reception at SO8OO

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