EA4T — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain

Receiver-side FT8 activity involving EA4T, decoded by SO8OO in southeastern Poland. 3,480 FT8 messages attributed to this token as transmitter, on 80m, 60m, 20m, 10m, across 77 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-31.

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 3,480 FT8 messages attributed to EA4T as the transmitting token by decoded message structure across 77 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (98%), followed by 60 m (1%) and 80 m (1%). Most decodes (74%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

3,480

Messages attributed

UTC dates decoded

727

Active 15-min windows

-12 dB

Estimated median S/N

Bands

80m · 25 60m · 44 20m · 3,410 10m · 1

First attributed message: 2026-06-07
Last attributed message: 2026-08-31 20:10 UTC

Observed FT8 message patterns

Attributed sample: 3,480 messages
Active dates: 77 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,000, moderate (-15 to -9 dB) 1,307, strong (≥ -8 dB) 1,173.

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 EA4T in decoded directed-looking exchanges:

IU4SQE · Italy ×9 9A3TGY · Croatia ×7 F4HSB · France ×5 NO0X · United States ×5 RI0SP · European Russia ×5 YO3FVR/P · Romania ×5 AA4SS · United States ×4 DL4PJ · Fed. Rep. of Germany ×4 KC3EF · United States ×4 KW4EI · United States ×4 VE1MDF · Canada ×4 AA4AZ · United States ×3

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.

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	EA4T S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 20:09	20m	-12 / -	W1SIP	- / -4	3	Partial capture
08-31 20:07	20m	-15 / -	W5ELD	- / -15	3	Partial capture
08-31 19:57	20m	+6 / -	9R5LDA	- / -17	3	Partial capture
08-31 19:43	20m	-2 / -	KE8VC	- / -20	3	Partial capture
08-31 19:40	20m	-1 / -	KF8DZL	- / -18	3	Partial capture
08-31 18:11	20m	-6 / -	RI1FJL	- / +4	4	Partial capture
08-31 17:48	20m	-15 / -	RI1FJL	- / -6	3	Partial capture
08-31 17:42	20m	-6 / -	RI1FJL	- / -20	3	Partial capture
08-31 17:38	20m	-9 / -	RI1FJL	- / -13	3	Partial capture
08-31 17:04	20m	+2 / -	OK3NKO/P	- / +6	3	Partial capture
08-31 17:01	20m	+1 / -	VU2JEB	- / +7	7	✓ Closing fragment
08-31 16:51	20m	-16 / -	<...>	- / -14	3	Partial capture
08-31 16:36	20m	-6 / -	W8ATE	- / -11	6	Partial capture
08-31 16:34	20m	-3 / -	IW3SGT	- / +7	3	Partial capture
08-31 16:33	20m	-2 / -	9A3TGY	- / -5	2	✓ Closing fragment
08-30 21:52	20m	-2 / -	KD5QJQ	- / -14	4	Partial capture
08-30 21:49	20m	-2 / -	BG5GFU	- / -21	3	Partial capture
08-30 21:48	20m	+4 / -	KI5JWZ	- / -8	3	Partial capture
08-30 21:46	20m	+5 / -	K2POG	- / -14	3	✓ Closing fragment
08-30 21:45	20m	+8 / -	TA4DX	- / -4	2	✓ Closing fragment
08-30 21:44	20m	+3 / -	KD5QJQ	- / -13	3	Partial capture
08-30 21:42	20m	+1 / +10	AA1BS	-4 / -	5	✓ Full exchange observed
08-30 21:38	20m	-5 / -	KC1FNM	- / -10	3	Partial capture
08-30 21:37	20m	-1 / -	AA1BS	- / +6	3	Partial capture
08-30 21:32	20m	-5 / -	VA3EWV	- / -15	3	Partial capture
08-30 21:31	20m	-6 / -	W8TMB	- / -12	3	Partial capture
08-30 21:29	20m	-10 / -	KC1FNM	- / -9	3	Partial capture
08-30 21:28	20m	-9 / -	KD0DCZ	- / -16	3	Partial capture
08-30 21:17	20m	-12 / -	KC1FNM	- / -14	3	Partial capture
08-30 21:16	20m	-11 / -	VA3WP	- / -11	3	Partial capture
08-30 21:14	20m	-9 / -	W8TMB	- / -12	3	Partial capture
08-30 21:06	20m	-12 / -	KC1FNM	- / -4	3	Partial capture
08-30 21:05	20m	-14 / -	W8TMB	- / -19	3	Partial capture
08-30 20:51	20m	-4 / -	RI1FJL	- / -19	3	Partial capture
08-30 20:50	20m	-5 / -	M0OVG	-6 / +9	7	✓ Full exchange observed
08-30 20:07	20m	-6 / -	KF8EJM	- / -16	2	Partial capture
08-30 20:05	20m	-6 / -	W8TMB	- / -3	3	Partial capture
08-30 20:04	20m	-8 / -	W0SS	- / -7	3	✓ Closing fragment
08-30 19:53	20m	-8 / -	AG4UI	- / -7	2	Partial capture
08-30 19:39	20m	+2 / -	RI1FJL	- / -14	3	Partial capture
08-30 17:34	20m	-9 / -7	Z31PM	-15 / -9	4	✓ Full exchange observed
08-30 17:31	20m	-12 / -	RI1FJL	- / 0	2	Partial capture
08-30 17:24	20m	-8 / -	RI1FJL	- / -17	2	Partial capture
08-30 17:03	20m	-4 / -	RI1FJL	- / -3	3	Partial capture
08-30 16:56	20m	-6 / -	RI1FJL	- / -14	3	Partial capture
08-30 16:48	20m	-11 / -	KC1VFW	- / -12	3	Partial capture
08-30 16:43	20m	-6 / -	KC1VFW	- / -11	2	Partial capture
08-30 16:42	20m	-5 / -	M9ORB	- / -13	2	Partial capture
08-30 16:29	20m	-12 / -	P47WG	- / -3	2	Partial capture
08-30 15:48	20m	-9 / -	RI1FJL	- / +1	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
194145  -2 1378  KF8DZL EA4T -18
194315  -1 1378  KE8VC EA4T -20 (x3)
194515  -3 1378  AE2NY EA4T +04
195730  +7 1378  9R5LDA EA4T -17 (x3)
195900  +6 1378  KS9LAV/R EA4T -10
200745 -17 1378  W5ELD EA4T -15 (x3)
200915 -12 1378  W1SIP EA4T -04 (x3)

40m

UTC    dB Audio  Message
194445 -20 1337  EA4T 2E0BTX IO83

10m

UTC    dB Audio  Message
172100  -8  797  EA4T DN9AD JO52 (x7)
132730  -5  626  EA4T DO3VE JO52 (x4)
152145 -17 1726  EA4T R6OIW R-17 (x3)
143945 -24 1387  DL4PJ EA4T -14

60m

UTC    dB Audio  Message
220315 -13 1332  IU4SQE EA4T -02 (x8)
220715 -15 1332  AA4SS EA4T -06 (x7)

80m

UTC    dB Audio  Message
200315 -14 1303  5Z4VJ EA4T -01
200345 -14 1303  8Z1IT EA4T -02 (x4)
200545 -15 1303  9K2ET EA4T -04
200815 -17 1303  OL900CO EA4T -09 (x3)
200945 -18 1303  VP1VBH/R EA4T -22 (x2)
201645 -13 1303  E2WWA EA4T -10
201715 -14 1304  KF0YOB EA4T -13 (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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