EA5JCI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM98

Receiver-side FT8 activity involving EA5JCI, decoded by SO8OO in southeastern Poland. 542 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 52 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-21.

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 542 FT8 messages attributed to EA5JCI as the transmitting token by decoded message structure across 52 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (51%), followed by 20 m (45%) and 80 m (3%). Most decodes (52%) 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 -10.3 dB.

Overview

542

Messages attributed

UTC dates decoded

154

Active 15-min windows

-10.3 dB

Estimated median S/N

Bands

80m · 18 40m · 279 20m · 245

First attributed message: 2026-06-07
Last attributed message: 2026-09-21 01:55 UTC

Observed FT8 message patterns

Attributed sample: 542 messages
Active dates: 52 UTC dates
Estimated median S/N: -10.3 dB
Estimated 10th-90th percentile: -17 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 104, moderate (-15 to -9 dB) 242, strong (≥ -8 dB) 196.

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 EA5JCI in decoded directed-looking exchanges:

RI0SP · European Russia ×3 JH5HDA · Japan MM5WJF/P · Scotland OX3LX · Greenland RA9FUE · European Russia TA3F · Asiatic Turkey TI4OP · Costa Rica UB6SAN · European Russia UN7NSA · Kazakhstan VJ6X · Australia VP5G · Turks & Caicos Islands YL3RK · Latvia

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 EA5JCI

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 · 387 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,203 km (approx.)
Last such locator decoded: 2026-09-21 01:55 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	EA5JCI S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-21 01:53	40m	-11 / -	HP3ARM	- / -	3	Partial capture
09-21 01:21	80m	-11 / -3	DO5PY	-4 / -7	5	✓ Full exchange observed
09-21 01:19	80m	-10 / -16	R4FDD	0 / -	5	✓ Closing observed
09-21 01:17	80m	-15 / -22	W3DQS	-9 / 0	4	✓ Full exchange observed
09-21 01:17	80m	-14 / -	EA3FR	- / +8	2	✓ Closing fragment
09-21 01:15	80m	-12 / -1	IQ4JO	+2 / -	5	✓ Full exchange observed
09-19 21:53	40m	-16 / -8	IU5VLR	-4 / -9	6	✓ Full exchange observed
09-19 21:50	40m	-17 / -2	F4NFM	-9 / -5	6	✓ Full exchange observed
09-19 21:48	40m	-16 / -	MW7RHR	- / +8	2	✓ Closing fragment
09-19 21:47	40m	- / -	OZ1LGJ	0 / -	2	Partial capture
09-17 03:47	40m	-19 / -6	W3GO	-14 / -	3	✓ Closing observed
09-17 00:27	40m	-20 / -	D2ACE	- / 0	2	Partial capture
09-16 23:52	40m	- / -	PD0RCQ	-8 / -	4	Partial capture
09-16 01:23	40m	- / +4	KB3Z	-5 / -	3	✓ Closing fragment
09-16 01:11	40m	-10 / -	KR4LQH	- / -8	2	Partial capture
09-10 23:15	40m	- / -	M8XDZ	-10 / -	3	✓ Closing fragment
09-09 21:29	40m	-9 / -	8Z1IT	- / -	3	Partial capture
09-08 21:26	40m	-8 / -	VP8A	- / -	4	Partial capture
09-08 21:23	40m	-7 / -	VP8A	- / -	2	Partial capture
09-08 21:19	40m	-7 / +1	5Z4VJ	-6 / +4	7	✓ Full exchange observed
09-08 21:13	40m	-12 / -	8Z1IT	- / -	4	Partial capture
09-08 20:55	40m	-13 / -	SV8/F6BLP	- / -	5	Partial capture
09-08 20:42	40m	-14 / -	ZL1RPC/F	- / +9	2	Partial capture
09-08 20:37	40m	-12 / -	VK3YW	- / -	4	Partial capture
09-08 19:10	40m	-15 / -	G5HRK	- / -	4	Partial capture
09-08 18:36	40m	-11 / -	TF1PA	- / -	3	Partial capture
09-08 18:32	40m	-9 / -	SM/DB9LG	- / -12	4	Partial capture
09-08 18:09	40m	-14 / -	HF100PKP	- / +10	3	Partial capture
09-08 18:06	40m	-13 / -	5Q1X	- / -11	3	Partial capture
09-07 02:00	40m	-10 / -	KS4OT	- / +5	2	✓ Closing fragment
09-07 01:59	40m	-10 / -	KD9WAM	- / -16	2	✓ Closing fragment
09-06 21:03	40m	-13 / -	VK3GSX	- / -6	9	✓ Closing fragment
09-06 21:02	40m	-15 / -	9J2FI	- / -11	3	✓ Closing fragment
09-06 20:58	40m	-16 / -	VK3GSX	- / -	6	Partial capture
09-03 23:28	40m	- / -14	YE4FNN	-11 / -	2	✓ Closing fragment
08-31 20:00	40m	-14 / -	VK2WW	- / -	6	Partial capture
08-29 21:32	40m	-8 / -	9M2RZM	- / -	2	Partial capture
08-29 21:30	40m	-7 / -	VK5BRG	- / -14	3	✓ Closing fragment
08-29 20:15	20m	+1 / -	V51WW	- / -	2	Partial capture
08-29 20:12	20m	-4 / -	LB0WI	- / -	2	Partial capture
08-29 20:02	20m	-5 / -	LU9XJR	- / -	2	Partial capture
08-29 20:00	20m	-4 / -	Z62NS	- / -	2	Partial capture
08-29 19:53	20m	-1 / -	MM5WJF/P	- / -	2	✓ Closing fragment
08-28 17:30	40m	-19 / -	9W2WKP	- / -	2	Partial capture
08-27 07:04	20m	-10 / -	VK7DAN	- / -8	2	Partial capture
08-27 06:56	20m	-12 / -	ZL2CG	- / -	2	Partial capture
08-27 06:12	20m	-9 / -	VK2ESE	- / -	4	Partial capture
08-27 06:07	20m	-10 / -	VK4FH	- / -14	4	Partial capture
08-26 07:11	20m	- / -	RD3FY	-7 / -	3	Partial capture
08-25 20:52	40m	- / -	PA1PXL	+3 / -	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
215215 -14 2173  CQ EA5JCI IM98 (x2)
215300  -1 1536  EA5JCI IU5VLR JN53
215315 -17 2174  IU5VLR EA5JCI -09
215330  -8 1536  EA5JCI IU5VLR R-08
215345 -17 2173  IU5VLR EA5JCI -09 (x2)
215430  -4 1535  EA5JCI IU5VLR 73
215515 -17 2174  CQ EA5JCI IM98 (x3)
010615 -21 2388  EA5JCI K1JAK FN53
015330 -14  269  HP3ARM EA5JCI IM98 (x3)

80m

UTC    dB Audio  Message
012030 -10 2353  R4FDD EA5JCI RR73
012045  +1 2353  EA5JCI R4FDD 73
012100  -7 2353  CQ EA5JCI IM98 (x2)
012145 -10 2353  EA5JCI DO5PY JN49
012200 -13 2352  DO5PY EA5JCI -07
012215  -5 2353  EA5JCI DO5PY R-03
012230  -9 2353  DO5PY EA5JCI RR73
012245  +2 2353  EA5JCI DO5PY 73
012315  -2 2353  CQ EA5JCI IM98 (x6)

20m

UTC    dB Audio  Message
071700  -9 2590  KL5E EA5JCI R-06
195315  +0 2525  MM5WJF/P EA5JCI IM98 (x2)
200045  -4 2589  Z62NS EA5JCI IM98 (x2)
200215  -5 2589  LU9XJR EA5JCI IM98 (x2)
201200  -4 2676  LB0WI EA5JCI IM98 (x2)
201500  -3 2676  V51WW EA5JCI IM98 (x2)
201600  +3 2675  D2IM EA5JCI IM98
204615 -10 2825  TA2ZLM EA5JCI R-16
062245 -18 2182  VK4BPK EA5JCI IM98
063830 -16 2587  VK2QV EA5JCI IM98

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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