EA3DHR — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving EA3DHR, decoded by SO8OO in southeastern Poland. 7 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-07-25.

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 7 FT8 messages attributed to EA3DHR as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

20m · 7

First attributed message: 2026-06-22
Last attributed message: 2026-07-25 19:18 UTC

Observed FT8 message patterns

Attributed sample: 7 messages
Active dates: 4 UTC dates
Estimated median S/N: -18 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 0.

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 EA3DHR in decoded directed-looking exchanges:

IK4LZH · Italy F1IQH · France

Most frequent locator attributed to EA3DHR

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 · 5 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,858 km (approx.)
Last such locator decoded: 2026-07-25 19:18 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	EA3DHR S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-28 18:45	10m	- / -19	PD0HLA	0 / -	6	Partial capture
07-25 19:03	20m	- / -	M7JVT	-8 / -	2	Partial capture
07-25 18:53	20m	- / -	IU5HIU	-5 / -	3	Partial capture
07-25 18:50	20m	- / +3	IS0KNG	-21 / -	2	Partial capture
07-25 14:44	20m	- / -	PD9FLX	-19 / -	3	Partial capture
07-22 18:11	20m	- / -	EA1DME	-15 / -	5	Partial capture
07-21 16:50	10m	- / -	PC9K	0 / -	3	Partial capture
07-21 16:47	10m	- / -	PD9FLX	-1 / -	10	Partial capture
07-13 14:12	10m	- / -5	F1PBZ	-6 / -	2	Partial capture
07-13 14:08	10m	- / -5	PD2WS	-13 / -	3	Partial capture
07-13 14:07	10m	- / -	ON5JDB	-14 / -	2	Partial capture
07-13 14:06	10m	- / -	PD0JEW	-18 / -	4	Partial capture
07-13 14:04	10m	- / -	DO1FDK	0 / -	2	Partial capture
07-13 10:58	10m	- / -17	IK4LZH	+7 / -	3	✓ Closing fragment
07-09 17:20	20m	- / -	M8KKH	0 / -	5	Partial capture
07-08 20:26	20m	- / -	EA4CCX	-14 / -	4	Partial capture
06-26 10:23	10m	- / -	DG0DZ	-19 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
164945  +4 2705  EA3DHR PD9FLX JO22 (x2)
165045  -1 2771  EA3DHR PC9K JO22
165115  -3 2705  EA3DHR PD9FLX JO22
165115  +0 2771  EA3DHR PC9K JO22 (x2)
165245  -9 2705  EA3DHR PD9FLX JO22 (x3)
184515  -2 2431  EA3DHR PD0HLA -19 (x6)

20m

UTC    dB Audio  Message
181145 -11 1551  EA3DHR EA1DME IN82 (x4)
144415 -21 1540  EA3DHR PD9FLX JO22 (x3)
185045 -21 1686  EA3DHR IS0KNG +03 (x2)
185315  -1 2904  EA3DHR IU5HIU JN53 (x3)
190345  -7  677  EA3DHR M7JVT IO94 (x2)
191800 -20 1552  R70OBN EA3DHR JN01

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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