EA1B — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IN83

Receiver-side FT8 activity involving EA1B, decoded by SO8OO in southeastern Poland. 1,783 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 72 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-20.

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 1,783 FT8 messages attributed to EA1B as the transmitting token by decoded message structure across 72 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (57%), followed by 40 m (25%) and 80 m (17%). Most decodes (83%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -6 dB.

Overview

1,783

Messages attributed

UTC dates decoded

259

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 297 40m · 443 20m · 1,021 10m · 22

First attributed message: 2026-06-06
Last attributed message: 2026-09-20 06:07 UTC

Observed FT8 message patterns

Attributed sample: 1,783 messages
Active dates: 72 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -16 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 189, moderate (-15 to -9 dB) 470, strong (≥ -8 dB) 1,124.

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 EA1B in decoded directed-looking exchanges:

GB8VJ · England ×2 RN6MA · European Russia ×2 TA7ARH · Asiatic Turkey ×2 TF4M · Iceland ×2 DK1STE · Fed. Rep. of Germany PP5KJ · Brazil RK3AW · European Russia 5B4ARQ · Cyprus 7K1CPT · Japan 7M2PDT · Japan 9V1DE · Singapore AC4UK · United States

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 EA1B

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: IN83 · 1,119 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,010 km (approx.)
Last such locator decoded: 2026-09-20 06:07 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	EA1B S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 06:06	40m	-6 / -	XE2MG	- / -	2	Partial capture
09-20 06:04	40m	-7 / -	W4SBH	- / -	5	Partial capture
09-20 05:59	40m	-6 / -	W4SBH	- / -	3	Partial capture
09-20 05:45	40m	0 / -	K5AWJ	- / -	2	Partial capture
09-20 05:39	80m	-16 / -	HI8JCD	- / -15	2	✓ Closing fragment
09-20 05:34	80m	- / -	DO5PY	-7 / -	5	Partial capture
09-20 05:29	40m	+2 / -	K5RSB	- / -13	4	✓ Closing fragment
09-20 05:28	40m	+6 / -	HK3AB	- / -12	3	✓ Closing fragment
09-20 05:28	40m	- / -4	PD2WL	-12 / -	8	Partial capture
09-20 05:17	80m	- / -	DO5PY	-8 / -	2	Partial capture
09-20 05:11	40m	+5 / -	LU1XLI	- / -	2	Partial capture
09-20 05:08	40m	- / -	DC9TS	-6 / -	2	Partial capture
09-20 05:04	80m	+3 / -3	GM6URC	-19 / -	3	✓ Closing observed
09-19 05:20	40m	-8 / -	K7BG	- / -18	3	✓ Closing fragment
09-19 05:08	80m	-9 / -4	HI8R	-16 / -1	7	✓ Full exchange observed
09-19 05:07	40m	- / +5	IK4TVP	-5 / -	4	Partial capture
09-19 05:03	40m	-4 / -	KE5ETC	- / -	2	✓ Closing fragment
09-19 04:59	80m	- / -	DO5PY	-12 / -	4	Partial capture
09-19 04:55	80m	-7 / -	KI5ZYU	- / -	3	Partial capture
09-19 04:53	80m	-4 / +10	DO5OT	+9 / -2	7	✓ Full exchange observed
09-18 21:23	80m	-13 / -1	G8KSH	-24 / -6	5	✓ Full exchange observed
09-15 06:03	40m	-10 / -	N7FQB	- / -23	3	✓ Closing fragment
09-15 06:02	40m	-10 / -	ZL3TE	- / -17	2	✓ Closing fragment
09-15 05:44	80m	-19 / -	W6E	- / -26	3	Partial capture
09-15 05:39	40m	-12 / -	ZL3TE	- / -	2	Partial capture
09-15 05:33	80m	-22 / -	KD0XD	- / -	2	✓ Closing fragment
09-15 05:26	80m	-17 / -	XE1H	- / -	3	Partial capture
09-15 05:25	80m	-16 / -	KK6BB	- / -	2	Partial capture
09-15 05:22	80m	-14 / -	N0UMF	- / -11	3	✓ Closing fragment
09-15 05:14	40m	- / -	IU8RFW	-10 / -	3	Partial capture
09-15 05:12	40m	-2 / -	N0VYE	- / -19	4	✓ Closing fragment
09-15 05:03	80m	-11 / -	KK6BB	- / -	2	Partial capture
09-15 05:01	80m	-12 / -	XE1UYS	- / -12	4	✓ Closing fragment
09-15 04:57	80m	-22 / -	KK6BB	- / -	5	Partial capture
09-15 04:54	80m	-13 / +10	G0BLB	-14 / +4	6	✓ Full exchange observed
09-15 04:53	80m	-14 / +1	EA5JKB	-24 / +2	4	✓ Full exchange observed
09-15 04:52	80m	-11 / +9	DO5PY	-9 / -1	5	✓ Full exchange observed
09-15 04:48	80m	-12 / -	KC0GU	- / -10	3	✓ Closing fragment
09-15 04:47	80m	-18 / -	NJ1Q	- / -22	3	✓ Closing fragment
09-14 19:31	40m	-2 / -	RA9ACA	- / -13	4	✓ Closing fragment
09-14 19:24	80m	-11 / -	R8CT	- / -	3	Partial capture
09-13 06:01	40m	-11 / -	K0LLT	- / -	2	Partial capture
09-13 06:00	40m	-8 / -	CN8NS	- / -9	2	✓ Closing fragment
09-13 05:54	80m	- / -	G0BLB	-18 / -	2	Partial capture
09-13 05:43	80m	- / -	SP6FME	+10 / -	2	Partial capture
09-13 05:37	40m	-10 / -	W6G	- / -17	6	✓ Closing fragment
09-13 05:35	80m	-24 / -	G8OO	-9 / -	2	✓ Closing observed
09-13 05:31	80m	- / -4	IK4TVP	-10 / -	4	Partial capture
09-13 05:31	80m	- / -	SP6FME	+10 / -	2	Partial capture
09-13 05:30	80m	-24 / -	ON5HE	-4 / -6	11	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
053200  +1 2653  WC4Y EA1B -13
053215 -13 2236  EA1B PD2WL -04 (x2)
054530  +2 2403  K5AWJ EA1B IN83 (x2)
055930  -4 2300  W4SBH EA1B IN83 (x8)
060630  -4 2300  XE2MG EA1B IN83 (x2)

80m

UTC    dB Audio  Message
053415 -10 2618  EA1B DO5PY JN49 (x5)
053830 -10 2369  CQ NA EA1B IN83 (x2)
053930 -15 2368  HI8JCD EA1B -15 (x2)
054030 -19 2369  CQ NA EA1B IN83 (x6)

10m

UTC    dB Audio  Message
174915 -19 2105  RK3AW EA1B 73
174945 -15 2105  S55A EA1B -01
175115 -10 2105  DK1STE EA1B +00 (x2)
200330  -5  657  EA1B DN9DKN JO31
202015  -8  667  EA1B DL1TS JN58 (x9)
171115 -14  834  EA1B PP5KJ RR73

20m

UTC    dB Audio  Message
202700  +9 2465  ZL3OY EA1B R-23 (x2)
205215 -13  276  EA1B JH4DIT RR73
170030  +0 2101  JR1UTC EA1B IN83 (x4)
170215 -11 2176  EA1B JR1UTC RR73
170230  -4 2101  JR1UTC EA1B 73
170300  -4 2101  BG2GWN EA1B IN83 (x2)
170445  -2 2101  BH8RDW EA1B IN83 (x2)
174945  +3 2533  K0Q EA1B IN83 (x2)

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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