EA5J — 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: IM98

Receiver-side FT8 activity involving EA5J, decoded by SO8OO in southeastern Poland. 496 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-11-06.

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 496 FT8 messages attributed to EA5J as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (22%), followed by 10 m (18%) and 20 m (16%). Most decodes (58%) 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 -16 dB.

Overview

496

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

160m · 108 80m · 67 60m · 71 40m · 78 20m · 81 10m · 91

First attributed message: 2026-06-10
Last attributed message: 2026-11-06 09:00 UTC

Observed FT8 message patterns

Attributed sample: 496 messages
Active dates: 26 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -22 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 265, moderate (-15 to -9 dB) 101, strong (≥ -8 dB) 130.

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 EA5J in decoded directed-looking exchanges:

LA9DL · Norway ×2 8S2A · Sweden CT2GQA · Portugal DF5AU · Fed. Rep. of Germany DG0OBU · Fed. Rep. of Germany EA1BLI · Spain EC4TR · Spain F4HGF · France HB9DVO · Switzerland IK4HPW · Italy IK6DTB · Italy IT9VCE · Sicily

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 EA5J

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: IM98 · 307 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,203 km (approx.)
Last such locator decoded: 2026-11-06 09:00 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	EA5J S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 08:59	10m	-6 / -	VK8MC	- / -	3	Partial capture
11-01 18:33	40m	-7 / -	EX8ABR	- / -	4	Partial capture
10-29 19:14	60m	-19 / -14	GM4KHE	-10 / -	2	✓ Closing observed
10-29 19:02	60m	-19 / -	IV3DSG	-4 / -	4	✓ Closing observed
10-29 18:54	60m	-18 / -5	OH3MB	-14 / -12	5	✓ Full exchange observed
10-29 18:51	60m	-18 / -	IK1HSO	-13 / -5	4	✓ Closing observed
10-29 18:50	60m	-18 / -4	DL0NS	-14 / -5	6	✓ Full exchange observed
10-29 18:47	60m	-18 / -	LZ1GC	+2 / -3	3	✓ Full exchange observed
10-29 18:44	60m	- / +3	SV1KWA	-10 / -	2	Partial capture
10-29 18:39	60m	- / -10	YO2CK	-4 / -	3	✓ Closing fragment
10-29 18:36	60m	-18 / -13	SP3EPK	+4 / 0	5	✓ Full exchange observed
10-29 18:35	60m	- / -16	SP3EIE	-8 / -	3	Partial capture
10-29 18:32	60m	- / -12	SP4HXV	-10 / -	3	✓ Closing fragment
10-29 18:32	60m	- / +10	OE8PIT	+6 / -	2	✓ Closing fragment
10-29 18:32	60m	- / -	YO5USA	-4 / -	5	Partial capture
10-29 18:30	60m	-23 / -3	HB9ETN	-21 / 0	4	✓ Full exchange observed
10-29 18:27	60m	-18 / -	SV8DUU	- / -14	2	Partial capture
10-29 18:24	60m	-20 / -14	SP1EUS	-7 / -9	4	✓ Full exchange observed
10-29 18:22	60m	-15 / -	C5R	- / -16	5	✓ Closing fragment
10-29 18:17	80m	-2 / -	5Z4VJ	- / -	2	Partial capture
10-29 18:13	80m	-7 / -9	YU7AS	+3 / -2	5	Partial capture
10-29 18:11	80m	- / -	SP9ALK	-5 / -	9	Partial capture
10-29 18:10	80m	-14 / -	IZ5YBN	- / -16	2	✓ Closing fragment
10-29 18:07	80m	-15 / +2	LZ3SD	-4 / -3	4	✓ Full exchange observed
10-29 18:04	80m	-14 / -	DA6NEL	+4 / -4	6	Partial capture
10-29 18:02	80m	-13 / -12	DO5PY	-6 / -6	5	✓ Full exchange observed
10-26 19:01	60m	-19 / -	C5R	- / -	4	Partial capture
10-22 18:28	160m	-16 / +8	R4DI	-11 / -18	7	✓ Full exchange observed
10-22 18:25	160m	-16 / -20	SQ6WA	+5 / -13	6	✓ Full exchange observed
10-22 18:15	160m	- / -	R4FDK	-8 / -	6	Partial capture
10-22 18:13	160m	-10 / -7	DF5AU	+14 / -3	5	✓ Full exchange observed
10-22 18:10	160m	-20 / -12	OH3NAQ	+7 / -13	5	✓ Full exchange observed
10-22 18:06	160m	-13 / -9	IK4HPW	-14 / -17	4	✓ Full exchange observed
10-22 06:42	60m	-22 / -	FK8HC	- / -	2	Partial capture
10-22 06:38	60m	-20 / -	FK8HC	- / -	2	Partial capture
10-17 06:50	40m	- / -15	PD4RJ	-20 / -	4	Partial capture
10-16 18:19	160m	-20 / -	EA1BLI	-23 / +1	3	✓ Closing observed
10-16 18:16	160m	- / -7	DG0OBU	+1 / -	3	✓ Closing fragment
10-16 18:12	160m	-22 / -16	SQ9PBV	+1 / -18	8	Partial capture
10-16 18:10	160m	- / -11	IT9VCE	-15 / -	3	✓ Closing fragment
10-16 18:08	160m	- / -10	LY8O	-6 / -	2	✓ Closing fragment
10-15 18:40	40m	-4 / -	ON6CQ	- / -4	2	✓ Closing fragment
10-15 18:30	40m	-5 / -	DS2MGT	- / -15	4	Partial capture
10-15 18:29	40m	-6 / -	OK8CZ	- / -13	2	✓ Closing fragment
10-15 18:28	40m	-6 / -	BG4FRZ	- / -9	2	✓ Closing fragment
10-15 18:26	40m	-8 / -	SP5MXY	- / -7	2	✓ Closing fragment
10-15 18:18	80m	-10 / 0	ON5MX	-8 / -13	4	✓ Full exchange observed
10-15 18:12	80m	- / -11	DL8DAQ	+2 / -	3	✓ Closing fragment
10-01 06:02	80m	- / -2	ON1JP	-16 / -	4	Partial capture
10-01 05:59	80m	- / -7	DO1ID	+6 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
085900  -3 1493  VK8MC EA5J IM98 (x3)

40m

UTC    dB Audio  Message
184000  -3 1616  ON6CQ EA5J -04 (x2)
184100  -5 1615  CQ EA5J IM98
065030 -21 1334  EA5J PD4RJ JO33 (x4)
183345  -8  887  EX8ABR EA5J IM98 (x3)
183545  -5  887  OM2DSW EA5J -14
183615  -3  888  EX8ABR EA5J IM98
074230 -18 1344  EA5J M7MJW 73
074700 -20 1321  EA5J DG6CHI JN58
081730 -19 1344  EA5J GJ0KYZ +02

60m

UTC    dB Audio  Message
190745 -20 1830  CQ EA5J IM98 (x7)
191430 -10  432  EA5J GM4KHE R-14
191445 -19 1830  GM4KHE EA5J RR73
191515 -17 1830  CQ EA5J IM98 (x3)
191815 -16 1830  SP9JMZ EA5J RR73
191845 -16 1830  CQ EA5J IM98 (x2)

80m

UTC    dB Audio  Message
181345  +4 1515  EA5J YU7AS -09
181345  -5 2178  EA5J SP9ALK KO00 (x2)
181445  +2 1509  EA5J YU7AS -09
181500  -2 2496  IQ4JO EA5J -06
181515  +3 2177  EA5J SP9ALK KO00
181530 -10 2496  YU7AS EA5J R-02
181545  -1 2178  EA5J SP9ALK KO00
181600  -3 2496  YU7AS EA5J R-02
181615  +6 2177  EA5J SP9ALK KO00
181630  -7 2496  YU7AS EA5J R-02
181700  -2  401  5Z4VJ EA5J IM98 (x2)
181830 -12  329  JM1EMX EA5J IM98
181930 -14 1743  CQ EA5J IM98

160m

UTC    dB Audio  Message
182645  +2 1130  EA5J SQ6WA R-20
182700 -22  762  SQ6WA EA5J RR73
182715  +6 1130  EA5J SQ6WA 73
182730 -19  762  CQ EA5J IM98 (x3)
182845 -11 2040  EA5J R4DI +08
182900 -19  762  CQ EA5J IM98
182915  -9 2040  EA5J R4DI +08
182930 -16  762  R4DI EA5J R-18
182945 -12 2040  EA5J R4DI -14
183000 -15  762  R4DI EA5J R-18
183015 -12 2040  EA5J R4DI RR73
183030 -18  762  R4DI EA5J 73
183100 -13  762  CQ EA5J IM98

20m

UTC    dB Audio  Message
100830  +2 1883  CQ EA5J IM98
100845 -18 1883  EA5J PE1GIX JO21
100900  -1 1883  CQ EA5J IM98                          a1 (x3)
101030  +1 1883  PE1GIX EA5J -18 (x3)
101200  +1 1883  CQ EA5J IM98 (x7)

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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