EH1FSN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IN73

Receiver-side FT8 activity involving EH1FSN, decoded by SO8OO in southeastern Poland. 81 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-10 and 2026-07-11.

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 81 FT8 messages attributed to EH1FSN as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (41%), followed by 80 m (40%) and 40 m (20%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

80m · 32 40m · 16 20m · 33

First attributed message: 2026-07-10
Last attributed message: 2026-07-11 22:00 UTC

Observed FT8 message patterns

Attributed sample: 81 messages
Active dates: 2 UTC dates
Estimated median S/N: -19 dB
Estimated 10th-90th percentile: -24 to -9 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 51, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 8.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with EH1FSN in decoded directed-looking exchanges:

F5RRS · France ×3 IQ4JO · Italy ×2 DM2AB · Fed. Rep. of Germany ×2 HB9EFK · Switzerland ×2 2E0WWG · England DK7UY · Fed. Rep. of Germany EA3AGF · Spain EA5RO · Spain EA5W · Spain EA8CII · Canary Islands GJ0KYZ · Jersey IZ1HJU · Italy

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 EH1FSN

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: IN73 · 42 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,150 km (approx.)
Last such locator decoded: 2026-07-11 22:00 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	EH1FSN S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-12 21:56	80m	- / -16	DL1UDO	-1 / -	5	✓ Closing fragment
07-12 20:15	60m	- / -4	HA7TM	-16 / -	3	✓ Closing fragment
07-12 20:02	40m	- / -10	HB9EFK	-4 / -	2	✓ Closing fragment
07-12 19:55	40m	- / +5	F1TRF	-9 / -	8	Partial capture
07-12 19:51	40m	- / -1	ON4ASV	-8 / -	3	✓ Closing fragment
07-12 18:32	40m	- / +5	ON3PDM	-15 / -	3	✓ Closing fragment
07-12 18:02	40m	- / -12	DK6WH	-4 / -	2	✓ Closing fragment
07-12 06:28	40m	- / -13	DF8RU	-14 / -	3	✓ Closing fragment
07-12 05:48	40m	- / -5	DJ0MAB	-12 / -	2	Partial capture
07-11 22:03	80m	- / -	HB9MZI	-24 / -	2	Partial capture
07-11 21:50	80m	- / -20	DO1OAS	-14 / -	17	Partial capture
07-11 21:46	80m	- / -12	EA3EDU	-2 / -	3	✓ Closing fragment
07-11 19:46	20m	- / -7	IQ4JO	-10 / -	2	✓ Closing fragment
07-11 19:36	80m	- / -	EA6SK	-12 / -	4	Partial capture
07-11 19:30	20m	-14 / -	IZ1HJU	- / -24	7	✓ Closing fragment
07-11 19:25	20m	-20 / -	2E0WWG	- / -18	2	✓ Closing fragment
07-11 19:12	20m	- / -	EA7GRB	-13 / -	5	Partial capture
07-11 10:37	20m	- / -	HG8LXL	-14 / -	3	Partial capture
07-11 10:33	20m	- / -18	RN6MA	-11 / -	3	Partial capture
07-11 10:23	20m	-22 / -	G1LQT	-15 / -19	2	Partial capture
07-11 10:13	20m	- / -	DL1R	-1 / -	11	Partial capture
07-11 10:13	20m	- / -	PD1ADA	-12 / -	2	Partial capture
07-11 10:13	20m	- / -	RL3K	-20 / -	2	Partial capture
07-11 10:07	20m	- / -11	RN6MA	-12 / -	2	Partial capture
07-11 10:04	20m	- / -	F1PSX	-8 / -	2	Partial capture
07-11 10:02	20m	- / -	PE1NPS	-11 / -	2	Partial capture
07-11 09:51	20m	- / -14	YO4NF	-16 / -	2	Partial capture
07-11 09:48	20m	- / -	EA5W	-17 / -	4	✓ Closing fragment
07-11 09:48	20m	- / -	IK1MJK/P	-16 / -	2	Partial capture
07-11 08:58	20m	- / -	PD1HPB	-18 / -	2	Partial capture
07-11 08:57	20m	- / -19	YO4NF	-12 / -	2	Partial capture
07-11 08:42	20m	-16 / -11	EA5RO	-14 / -14	3	✓ Full exchange observed
07-11 08:42	20m	- / -17	YO4NF	-4 / -	2	Partial capture
07-11 08:37	20m	- / -2	DK7UY	-14 / -	2	✓ Closing fragment
07-11 07:17	40m	- / -3	DF7JS	-8 / -	2	✓ Closing fragment
07-11 07:11	40m	- / -8	DK4FH	-12 / -	2	✓ Closing fragment
07-11 06:49	40m	- / -	DL8WEM	-5 / -	2	✓ Closing fragment
07-11 04:49	40m	- / -19	SQ3PMX	-8 / -	2	Partial capture
07-11 04:44	40m	- / -15	PE1NPS	-11 / -	3	Partial capture
07-11 04:42	40m	- / -18	PA3EVY	-12 / -	2	Partial capture
07-11 02:21	80m	- / -8	G8OO	-12 / -	3	✓ Closing fragment
07-11 02:20	80m	- / -	DL9KM	0 / -	3	Partial capture
07-11 01:35	80m	-11 / -	UA4FKT	- / -24	6	✓ Closing fragment
07-11 01:32	80m	-6 / -	9A4ZM	+6 / -	3	✓ Closing observed
07-11 01:30	80m	-16 / -3	F5MYK	-13 / -6	6	✓ Full exchange observed
07-11 01:30	80m	- / -	RA3DRI	-11 / -	3	Partial capture
07-11 01:29	80m	-12 / -7	9A3AUH	+7 / -18	8	✓ Full exchange observed
07-11 01:28	80m	-9 / -	DO8DL	-6 / -9	6	✓ Closing observed
07-11 01:28	80m	-7 / -6	F5RRS	+5 / -2	5	✓ Full exchange observed
07-11 01:15	80m	- / -	HB9MZI	-22 / -	12	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
220030  -8 1835  EH1FSN DO1OAS -19
220045 -24 1836  CQ EH1FSN IN73
220100 -13 1835  EH1FSN DO1OAS -19 (x2)
220130 -24 1203  EH1FSN DH1KM JO30
220200  -6 1835  EH1FSN DO1OAS -19 (x2)
220300 -24 1837  EH1FSN HB9MZI JN46 (x2)
214815  -2 2688  EH1FSN R3HH KO95
215645  -5 1279  EH1FSN DL1UDO JO31 (x5)

60m

UTC    dB Audio  Message
201530 -15 2047  EH1FSN HA7TM JN97 (x3)

40m

UTC    dB Audio  Message
194045 -20 1528  EH1FSN DK4CH R-10
194415 -18 1495  EH1FSN F6BHK R-02
195145  -8 1495  EH1FSN ON4ASV JO11 (x3)
195545  -9 2539  EH1FSN F1TRF JN39 (x8)
200215  -2 2429  EH1FSN HB9EFK -10 (x2)

20m

UTC    dB Audio  Message
192215 -21 1640  G3ZQQ EH1FSN -20
192545 -18 1640  2E0WWG EH1FSN -18 (x2)
193045 -19 1640  IZ1HJU EH1FSN -24 (x7)
193545 -16 2278  CQ EH1FSN IN73
193845 -16 2278  RA6OY EH1FSN RR73
194030 -17 1477  EH1FSN EA3AGF 73
194630  -7 2147  EH1FSN IQ4JO R-07 (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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