EA5IHM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IM97

Receiver-side FT8 activity involving EA5IHM, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-08-23.

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 23 FT8 messages attributed to EA5IHM as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (65%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (70%); the estimated median was -19 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

20m · 23

First attributed message: 2026-06-09
Last attributed message: 2026-08-23 11:43 UTC

Observed FT8 message patterns

Attributed sample: 23 messages
Active dates: 9 UTC dates
Estimated median S/N: -19 dB
Estimated 10th-90th percentile: -24 to -11 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 1.

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 EA5IHM in decoded directed-looking exchanges:

DG1KPC · Fed. Rep. of Germany DL8TT · Fed. Rep. of Germany DM4ET · Fed. Rep. of Germany DM4GG · Fed. Rep. of Germany E75AA · Bosnia-Herzegovina EA1JXB · Spain EB3EHP · Spain M0LAD · England N1EN · United States PD5FK · Netherlands UN7LEW · Kazakhstan

Most frequent locator attributed to EA5IHM

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: IM97 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,280 km (approx.)
Last such locator decoded: 2026-08-23 11:43 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	EA5IHM S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-15 07:38	20m	- / -15	G7FEP	-9 / -	2	Partial capture
08-15 07:15	20m	- / -10	DL8TT	-2 / -	2	✓ Closing fragment
08-11 11:38	20m	- / -25	DM4GG	+10 / -	2	✓ Closing fragment
08-08 09:58	20m	- / +3	EA3HKA	-12 / -	2	Partial capture
08-07 12:08	20m	- / -21	G3EFG	-20 / -	4	Partial capture
08-04 09:36	20m	- / -14	EA1JXB	-12 / -	2	✓ Closing fragment
08-01 00:07	20m	-24 / -	N5WXB	- / -	3	Partial capture
07-31 23:59	20m	-24 / -	KD2UWF	- / -	2	Partial capture
07-30 08:07	20m	- / -24	DG1KPC	-14 / -	4	✓ Closing fragment
07-28 09:26	20m	- / -20	M0LAD	-8 / -	4	✓ Closing fragment
07-17 08:07	20m	- / -	PA0LDE	-11 / -	3	Partial capture
07-10 07:27	20m	- / -10	EA4GA	-7 / -	5	Partial capture
07-09 16:42	20m	- / -17	EA1ERH	-13 / -	2	Partial capture
07-09 06:58	20m	- / -19	E75AA	-9 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
115700 -13  631  EA5IHM EB3EHP RR73
120845 -15 1639  EA5IHM G3EFG -21 (x4)
095815 -12 2388  EA5IHM EA3HKA +03 (x2)
113815 +11 2773  EA5IHM DM4GG -25 (x2)
150200 -11  639  EA5IHM M7GFJ -21
071500  +7 1827  EA5IHM DL8TT -10 (x2)
073845  -9  813  EA5IHM G7FEP -15 (x2)
114300 -11 2663  DK5US EA5IHM IM97

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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