EA3EDU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: JN01

Receiver-side FT8 activity involving EA3EDU, decoded by SO8OO in southeastern Poland. 5,415 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 82 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-08.

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 5,415 FT8 messages attributed to EA3EDU as the transmitting token by decoded message structure across 82 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (38%), followed by 20 m (26%) and 80 m (14%). Most decodes (55%) fell within the six-hour window 20:00-02:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

5,415

Messages attributed

UTC dates decoded

600

Active 15-min windows

-7 dB

Estimated median S/N

Bands

160m · 107 80m · 773 60m · 348 40m · 2,052 20m · 1,421 10m · 714

First attributed message: 2026-06-06
Last attributed message: 2026-09-08 23:40 UTC

Observed FT8 message patterns

Attributed sample: 5,415 messages
Active dates: 82 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -16.9 to +2.9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 687, moderate (-15 to -9 dB) 1,708, strong (≥ -8 dB) 3,020.

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 EA3EDU in decoded directed-looking exchanges:

SA7BYQ · Sweden ×3 EA3JIJ · Spain ×3 5B4ALJ · Cyprus ×2 RI0SP · European Russia ×2 R8CKD · Asiatic Russia ×2 R9TS · Asiatic Russia ×2 HF5A · Poland ×2 F4HSB · France ×2 EC5M · Spain ×2 SV9QWC · Crete ×2 OH5WWA · Finland ×2 SM5FQQ · Sweden ×2

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 EA3EDU

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: JN01 · 3,628 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,858 km (approx.)
Last such locator decoded: 2026-09-08 23:40 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	EA3EDU S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 23:34	40m	-1 / -	LU9ET	- / -	12	Partial capture
09-08 23:23	40m	-1 / -	CE8TDO	- / -	23	Partial capture
09-08 23:21	40m	-3 / -	YC2UKL	- / -	3	Partial capture
09-08 23:18	40m	-2 / -	CB1SDC	- / -	7	Partial capture
09-08 23:11	40m	-4 / -	RX9UCF	- / -18	10	✓ Closing fragment
09-08 22:52	40m	0 / -	KB3UJT	- / -14	31	✓ Closing fragment
09-08 22:46	40m	-1 / -	TM35DCM	- / -13	6	Partial capture
09-08 22:44	40m	0 / -18	EA1BWU	-8 / -13	7	✓ Full exchange observed
09-08 22:39	40m	0 / -	TC3CT	- / -13	8	✓ Closing fragment
09-08 22:28	40m	-2 / -	PY4VTL	- / -26	20	Partial capture
09-08 22:23	40m	-2 / -	SM3JBO	- / -20	3	✓ Closing fragment
09-08 22:18	40m	-3 / -	EA1KCN	- / -11	7	✓ Closing fragment
09-08 22:07	60m	+6 / -	Z68BR	- / -6	3	✓ Closing fragment
09-08 22:04	60m	+8 / -	GM4ZTO	- / -	7	Partial capture
09-08 22:03	60m	-5 / -	I8OHQ	-10 / -	2	✓ Closing observed
09-08 21:59	60m	-9 / -	EA8DGI	- / -5	6	✓ Closing fragment
09-08 21:52	80m	-6 / -9	OK1SI	+16 / -	5	✓ Closing observed
09-08 21:51	80m	-3 / -	GM4JYB	- / -9	3	✓ Closing fragment
09-08 21:48	80m	-10 / -19	RC9WC	0 / -7	5	✓ Full exchange observed
09-08 21:46	80m	-6 / -	EA1KCN	-10 / -6	4	✓ Closing observed
09-08 21:43	80m	-4 / -21	RA9ACA	-9 / -11	7	✓ Full exchange observed
09-08 21:36	80m	-2 / -9	RA3BQ	+3 / -8	13	✓ Full exchange observed
09-08 21:32	80m	- / -	RA3BQ	-12 / -	2	Partial capture
09-08 02:53	80m	- / -9	EC3A	-12 / -	2	Partial capture
09-08 02:44	80m	-3 / -	J38LD	- / -20	12	✓ Closing fragment
09-08 02:41	80m	+6 / -8	OH4SS	+8 / -4	6	✓ Full exchange observed
09-08 02:36	40m	+9 / -	PY2DDR	- / -	5	Partial capture
09-08 02:27	40m	0 / -	CB1SDC	- / -	17	Partial capture
09-08 02:22	40m	+9 / -	HJ4AAM	- / -	9	Partial capture
09-08 02:18	40m	+5 / -	ES2TT	- / -	8	Partial capture
09-08 02:11	40m	+4 / -	UB8CPH	- / -10	6	✓ Closing fragment
09-08 02:07	40m	+2 / -	UN7CL	- / -	2	✓ Closing fragment
09-08 02:06	40m	+13 / -	UB8CPH	- / -	2	Partial capture
09-08 01:44	40m	-7 / -	5N0YEN	- / -17	35	✓ Closing fragment
09-08 01:37	40m	-4 / -	LU1AW	- / -8	12	✓ Closing fragment
09-08 01:32	40m	-11 / +6	YU65AEC	-8 / -6	5	Partial capture
09-08 01:26	40m	-8 / -	LU1AW	- / -	11	Partial capture
09-08 01:20	40m	0 / -	VP8AWU	- / -17	7	✓ Closing fragment
09-08 01:15	40m	-5 / -	HK4T	- / -	11	Partial capture
09-08 01:12	40m	-2 / -	VU3IHP	- / -	5	Partial capture
09-08 01:07	40m	-1 / -	PY3TX	- / -	9	Partial capture
09-06 23:30	40m	-6 / -	YV3CFP	- / -	3	Partial capture
09-06 23:24	40m	-2 / -	LB9CJ	- / -	7	Partial capture
09-06 23:22	40m	-1 / -	VA2RC/P	- / -	5	Partial capture
09-06 23:20	40m	+1 / -	LB1IG	- / -	4	Partial capture
09-06 23:13	80m	-4 / +2	EA3LF	-3 / +5	4	✓ Full exchange observed
09-06 23:08	80m	0 / +9	EA1AIQ	-6 / -3	9	✓ Full exchange observed
09-06 23:04	80m	-9 / -15	RD9U	-4 / -8	7	✓ Full exchange observed
09-06 22:35	40m	-5 / -	CA1OGG	- / -	7	Partial capture
09-06 22:32	40m	-2 / -	PP6BVM	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
233315  -4 1091  CE8TDO EA3EDU JN01 (x3)
233445  -6 1092  LU9ET EA3EDU JN01 (x12)

60m

UTC    dB Audio  Message
220115  -9 1644  EA8DGI EA3EDU JN01 (x3)
220300 -10 1805  EA3EDU I8OHQ RR73
220315  -5 1644  I8OHQ EA3EDU 73
220415  +7  466  GM4ZTO EA3EDU JN01 (x7)
220745 +10  466  Z68BR EA3EDU JN01 (x3)

80m

UTC    dB Audio  Message
214800 -10 2380  EA3EDU EA1KCN RR73
214815  -6 1615  EA1KCN EA3EDU 73
214830  -3  803  EA3EDU RC9WC -19 (x2)
214915 -11 1615  RC9WC EA3EDU R-07
214930  +3  803  EA3EDU RC9WC RR73
214945 -10 1615  RC9WC EA3EDU 73
215100  -2 1615  GM4JYB EA3EDU JN01 (x3)
215215 +13  403  EA3EDU OK1SI JO70 (x2)
215300  -5 1615  OK1SI EA3EDU RRR
215315 +20  403  EA3EDU OK1SI 73
215330  -8 1615  OK1SI EA3EDU 73

160m

UTC    dB Audio  Message
205530 -21 1114  EA3EDU EG1PDA RR73 (x2)
205730 -12 1208  EA3EDU DL1MHJ JN58 (x4)
210845 -22 1418  RU3XK EA3EDU JN01
211200  +1  668  EA3EDU LA9DL -04 (x2)
211515  -9  994  EA3EDU OH5CMP -18 (x2)
211645 -20 1419  EA3EDU DK7QJ JO41 (x4)

20m

UTC    dB Audio  Message
170500  -7 1320  9M2DGA EA3EDU JN01 (x3)
173130  +1 1318  YB6IDM EA3EDU JN01 (x2)
174100  -4 1320  EU2NS EA3EDU JN01
175145  -9 1320  EA3JHT EA3EDU 73 (x2)
175315  -9 1319  TA2CMP EA3EDU JN01
181500  -4 1319  BG5GEB EA3EDU JN01 (x6)

10m

UTC    dB Audio  Message
095400  -6  893  BG0EMF EA3EDU RRR (x3)
095530  -5  894  GM4WJA EA3EDU JN01 (x4)
095730  -4  894  JA3PCQ EA3EDU JN01 (x5)
132545 -12  712  Z62NS EA3EDU JN01 (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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