EA5YU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM97

Receiver-side FT8 activity involving EA5YU, decoded by SO8OO in southeastern Poland. 300 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 19 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-12.

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 300 FT8 messages attributed to EA5YU as the transmitting token by decoded message structure across 19 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (38%), followed by 20 m (32%) and 60 m (19%). Most decodes (85%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

300

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 114 60m · 57 40m · 33 20m · 95 10m · 1

First attributed message: 2026-06-06
Last attributed message: 2026-09-12 20:58 UTC

Observed FT8 message patterns

Attributed sample: 300 messages
Active dates: 19 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -17 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 49, moderate (-15 to -9 dB) 131, strong (≥ -8 dB) 120.

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 EA5YU in decoded directed-looking exchanges:

IQ0VT · Italy ×4 BA3NZ · China BG3NBD · China EA1ESW · Spain IQ9NI · Sicily M6INJ · England ON1JP · Belgium E74K · Bosnia-Herzegovina IQ9GD · Sicily OK2USB · Czech Republic UF1A · European Russia 7X5CY · Algeria

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 EA5YU

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: IM97 · 169 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,280 km (approx.)
Last such locator decoded: 2026-09-12 20:52 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	EA5YU S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 20:58	60m	-7 / 0	7X5CY	-6 / +8	4	✓ Full exchange observed
09-12 20:51	60m	-8 / -	EH1SDC	- / +8	4	Partial capture
09-12 06:02	40m	-6 / -	EH1PDA	- / -	2	Partial capture
09-02 20:24	80m	- / +4	EG1PDA	-8 / -	2	✓ Closing fragment
08-31 22:35	80m	-9 / -	<...>	- / -	4	Partial capture
08-31 22:27	80m	-13 / -	EG1PPE	- / -5	3	✓ Closing fragment
08-31 20:42	80m	-24 / -	F9IE	- / -2	3	✓ Closing fragment
08-24 09:57	20m	-14 / -	VP2MAA	- / -	3	Partial capture
08-24 09:43	20m	-3 / -7	ON1JP	-23 / -7	4	✓ Full exchange observed
08-24 09:42	20m	-1 / -	EA1ESW	- / +3	3	✓ Closing fragment
08-17 17:36	20m	-8 / -	BA3NZ	- / -15	2	✓ Closing fragment
08-17 17:31	20m	-6 / -	9J2FI	- / -18	6	Partial capture
08-17 17:29	20m	-5 / -	<...>	- / -	3	Partial capture
08-14 19:01	40m	- / -3	IU2HUQ	-19 / -	2	Partial capture
08-14 19:00	40m	-14 / -8	OK2USB	+3 / -	4	✓ Closing observed
08-06 21:11	80m	-16 / +8	<...>	-12 / -8	3	Partial capture
08-06 21:08	80m	-15 / -	TF4M	- / -12	3	✓ Closing fragment
08-06 20:57	40m	- / +3	E74K	-4 / -	2	✓ Closing fragment
08-04 18:52	20m	-16 / -	T77RN	- / -9	2	Partial capture
08-03 20:39	80m	-8 / -	CR7BRV	-1 / -	4	✓ Closing observed
08-03 20:35	80m	-10 / -	EA1SS	- / +2	2	Partial capture
08-03 20:32	80m	-9 / -10	RC6OD	+2 / -4	6	✓ Full exchange observed
06-28 11:51	10m	- / -	UA4FEN	-15 / -	3	Partial capture
06-27 21:14	80m	-4 / -	IR7RMAT	- / -4	3	Partial capture
06-27 21:10	80m	-12 / +5	II9RIME	-3 / -	3	Partial capture
06-27 21:08	80m	-16 / -3	IR7RMAT	-5 / -1	3	Partial capture
06-27 21:04	80m	-10 / -	GB1500M	- / -4	6	Partial capture
06-27 21:02	80m	-10 / -	<...>	- / -15	3	Partial capture
06-27 20:56	80m	-11 / -	IQ2DB	+2 / +3	5	✓ Closing observed
06-27 19:48	60m	-10 / -3	IQ0VT	-4 / +7	6	✓ Full exchange observed
06-27 19:44	40m	-20 / -3	IQ9GD	-20 / -	4	✓ Closing observed
06-26 22:40	40m	-23 / -	IQ9NI	- / -	3	Partial capture
06-26 22:37	40m	- / +6	IQ0VT	-11 / -	2	✓ Closing fragment
06-26 22:33	40m	-20 / -	<...>	- / -	3	Partial capture
06-26 21:24	80m	- / -	R3HH	-2 / -	2	Partial capture
06-26 21:18	80m	-1 / -	IQ4FE	- / -6	4	✓ Closing fragment
06-26 21:18	80m	-5 / -	EA7L	-14 / +10	10	✓ Full exchange observed
06-26 21:15	80m	-8 / +4	IQ0VT	-6 / +3	5	✓ Full exchange observed
06-26 21:12	80m	-5 / -	R2EA/P	- / +9	4	Partial capture
06-26 21:07	60m	-7 / +2	IQ3GO	-8 / +9	6	✓ Full exchange observed
06-26 11:57	20m	-17 / -	<...>	- / -3	3	Partial capture
06-25 23:00	20m	-17 / -	IQ9NI	- / -11	5	✓ Closing fragment
06-25 22:51	20m	-19 / -	<...>	- / +7	4	Partial capture
06-25 22:18	20m	-18 / -	IQ9BH	- / -	2	Partial capture
06-25 22:16	20m	-13 / -	BG3NBD	- / -10	2	✓ Closing fragment
06-25 22:14	20m	-14 / -	<...>	- / -9	2	Partial capture
06-25 22:10	20m	-15 / -	IQ9BH	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
194915  -5 2039  EA5YU IQ0VT -03
194930 -10 1499  IQ0VT EA5YU R+07
194945  -4 2039  EA5YU IQ0VT RR73
195000 -10 1499  IQ0VT EA5YU 73
203645 -20 1621  EA5YU EG2PDA RR73
205430 -11  830  <...> EA5YU R+03
205115  -7 1212  EH1SDC EA5YU IM97 (x4)
205300 -14 1391  EA5YU RR73; DJ0CL <...> +14
205800  -6  559  EA5YU 7X5CY +00
205815  -6 1213  7X5CY EA5YU R+08
205830  -7  559  EA5YU 7X5CY RR73
205845  -8 1213  7X5CY EA5YU 73

40m

UTC    dB Audio  Message
205730  -4 2697  EA5YU E74K RR73
210800  -9  601  EA5YU RY3F -15
211300 -16  787  EA5YU UF1A RR73
202400 -10  981  EA5YU EN35UKR -14
203700 -15 2393  EA5YU TF4M +03
203730 -18 2393  EA5YU RR73; M0UTD <...> +10
190015  +3  488  EA5YU OK2USB -08 (x3)
190130 -14 2447  OK2USB EA5YU 73
190145 -18 1739  EA5YU IU2HUQ -03 (x2)
072000  +5  774  EA5YU SN40KZE -24
060245  -6 2854  EH1PDA EA5YU IM97 (x2)

80m

UTC    dB Audio  Message
211215 -15 1791  <...> EA5YU R-08
204215 -23 2027  F9IE EA5YU IM97 (x3)
204415 -23 2027  EA5HM EA5YU +15
222745  -8  787  EG1PPE EA5YU IM97 (x3)
222900  +0  786  EA5YU SM3ULU JP81
223530 -12  788  <...> EA5YU IM97 (x4)
202430  -9  749  EA5YU EG1PDA +04 (x2)

20m

UTC    dB Audio  Message
173315  -5 2483  9J2FI EA5YU R-18 (x2)
173615  -7 2483  BA3NZ EA5YU R-15 (x2)
094230  -1 2487  EA1ESW EA5YU IM97 (x3)
094345 -23 1466  EA5YU ON1JP -07
094500  -1 2486  ON1JP EA5YU R-07 (x3)
095330  -4 2485  TI5RR EA5YU IM97
095745 -15 2485  VP2MAA EA5YU IM97 (x3)

10m

UTC    dB Audio  Message
112915 -20 1490  <...> EA5YU IM97
115115 -17 1700  EA5YU UA4FEN LO23 (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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