EA3FH — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: JN01

Receiver-side FT8 activity involving EA3FH, decoded by SO8OO in southeastern Poland. 2,415 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 63 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-04.

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 2,415 FT8 messages attributed to EA3FH as the transmitting token by decoded message structure across 63 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (98%), followed by 10 m (2%) and 40 m (0%). The busiest six-hour window was 16:00-22:00 UTC, containing 40% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was -3 dB.

Overview

2,415

Messages attributed

UTC dates decoded

349

Active 15-min windows

-3 dB

Estimated median S/N

Bands

40m · 8 20m · 2,361 10m · 46

First attributed message: 2026-06-06
Last attributed message: 2026-09-04 17:19 UTC

Observed FT8 message patterns

Attributed sample: 2,415 messages
Active dates: 63 UTC dates
Estimated median S/N: -3 dB
Estimated 10th-90th percentile: -12 to +7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 86, moderate (-15 to -9 dB) 481, strong (≥ -8 dB) 1,848.

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 EA3FH in decoded directed-looking exchanges:

RI0SP · European Russia ×4 R2UZ/P · European Russia ×2 5B4ARQ · Cyprus 8Z1IT · Saudi Arabia 9A2L · Croatia 9A3CYD · Croatia 9K2GR · Kuwait BG0DAP · China BG3NBD · China BG7ZHS · China BH2XBV · China DP0POL · Fed. Rep. of Germany

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 EA3FH

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: JN01 · 1,979 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,858 km (approx.)
Last such locator decoded: 2026-09-04 17:18 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	EA3FH S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 17:17	40m	-16 / -	5H6PJ	- / -14	3	Partial capture
09-03 19:29	40m	-11 / -	RI1FJL	- / -9	5	Partial capture
08-31 20:34	20m	+8 / -	BH3HAO	- / -	5	Partial capture
08-31 16:45	20m	+7 / -	W1AW/2	- / -13	5	Partial capture
08-31 16:41	20m	+5 / -	<...>	- / -	8	Partial capture
08-31 15:56	20m	+5 / -	BH8RDW	- / -	27	Partial capture
08-31 15:48	20m	+4 / -8	BG0DAP	-9 / -20	5	✓ Full exchange observed
08-31 07:47	20m	+7 / 0	EP2AES	-14 / -4	8	✓ Full exchange observed
08-30 16:07	20m	+20 / -	RU6FK	- / -	7	Partial capture
08-30 15:21	20m	+20 / -	RA0WBW	- / -	4	Partial capture
08-30 09:34	20m	-4 / -1	R6LNH/P	+13 / +3	10	✓ Full exchange observed
08-30 09:24	20m	-3 / -6	R2UZ/P	-6 / -11	23	✓ Full exchange observed
08-30 09:15	20m	-5 / -7	UB8QBI	-8 / -16	2	Partial capture
08-30 09:11	20m	-4 / -	UB8QBI	- / -	3	Partial capture
08-30 09:08	20m	0 / -	R1BJA	- / -	7	Partial capture
08-30 09:00	20m	+3 / +1	<...>	-11 / -	3	Partial capture
08-30 08:15	20m	-3 / -	VL4A	- / -	4	Partial capture
08-30 08:00	20m	-11 / -	VL4A	- / -	3	Partial capture
08-30 07:18	20m	-7 / -	RA9AJ	- / -	6	Partial capture
08-30 07:00	20m	-6 / -18	R8HC	-15 / -	7	✓ Closing observed
08-30 06:53	20m	-2 / -	VK3FWR	- / -	8	Partial capture
08-30 06:40	20m	+1 / -	VK4JOD	- / -	12	Partial capture
08-30 06:36	20m	+2 / -	VK2ANV	- / -	7	Partial capture
08-30 06:30	20m	+2 / -	VK2FZR	- / -	4	Partial capture
08-30 06:22	20m	-2 / -	VK2DYN	- / -20	2	Partial capture
08-30 06:15	20m	-9 / -	VK2FZR	- / -	7	Partial capture
08-29 19:42	20m	+2 / -	RL4R	- / -	11	Partial capture
08-29 18:56	20m	+8 / -	RL4R	- / -	4	Partial capture
08-29 16:23	20m	+13 / -	RA6LHU	- / -	7	Partial capture
08-29 15:56	20m	+12 / -6	R4PHH	+3 / +2	7	✓ Full exchange observed
08-29 13:24	20m	+3 / -	RI1FJL	- / -18	6	Partial capture
08-16 14:28	20m	-18 / -	ZY3IFM	- / -30	2	Partial capture
08-15 15:23	20m	-17 / -	TC6L	- / -8	3	✓ Closing fragment
08-15 05:45	20m	+7 / -	V55LH	- / -16	5	✓ Closing fragment
08-12 21:17	20m	-11 / -	<...>	- / -	5	Partial capture
08-12 21:14	20m	- / -	F5IXN	-16 / -	2	Partial capture
08-12 21:13	20m	-13 / -	R3BIS	- / -14	3	✓ Closing fragment
08-12 15:05	20m	-11 / -	R9DT	-8 / -16	6	✓ Closing observed
08-11 12:01	20m	-12 / -	T48FCR	- / -	2	Partial capture
08-11 11:57	20m	-11 / -	T48FCR	- / -	2	Partial capture
08-11 07:46	20m	-14 / -	<...>	- / -	4	Partial capture
08-11 07:23	20m	- / -12	R8FH	0 / -	2	✓ Closing fragment
08-10 20:03	20m	-3 / -	R1BOH	- / -15	15	✓ Closing fragment
08-10 20:01	20m	-5 / +3	9K2GR	-18 / +3	5	✓ Full exchange observed
08-10 17:25	20m	0 / -	<...>	- / -19	15	Partial capture
08-10 14:04	20m	-4 / -	OY5T	- / -	10	Partial capture
08-10 13:59	20m	-1 / -	<...>	- / -	7	Partial capture
08-09 20:42	20m	+3 / -	R3KON	- / -15	3	✓ Closing fragment
08-09 19:57	20m	+2 / -	TF/N7JMV	- / -5	4	Partial capture
08-09 19:50	20m	+2 / -	TF/N7JMV	- / -17	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
183245  -1  699  EA3FH 9A4ZM JN86 (x2)
192945 -11  742  RI1FJL EA3FH JN01 (x5)
171715 -16  927  5H6PJ EA3FH JN01 (x3)

20m

UTC    dB Audio  Message
164245  +6 2268  <...> EA3FH JN01 (x5)
164545  +4  786  W1AW/2 EA3FH JN01 (x5)
203415  +7 2401  BH3HAO EA3FH JN01 (x5)

10m

UTC    dB Audio  Message
101300 -12 2326  <...> EA3FH JN01 (x6)
120845 -11 2407  EA3FH DJ0MAB JN49
092715 -11  656  EA3FH SV2CLJ -01 (x3)
133045 -16 2470  3A2MW EA3FH R+17

60m

UTC    dB Audio  Message
224845  +2 1327  EA3FH HG8LXL KN06
224845 -11  962  <EA3FH> 9A60CBM
224915  +5 1327  EA3FH HG8LXL KN06
224915 -10  962  <EA3FH> 9A60CBM
224945  +4 1327  EA3FH HG8LXL KN06

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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