EA4DKJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Spain Most frequent locator attributed to this token: IN80

Receiver-side FT8 activity involving EA4DKJ, decoded by SO8OO in southeastern Poland. 90 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-07.

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 90 FT8 messages attributed to EA4DKJ as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (81%), followed by 40 m (19%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (60%); the estimated median was -7 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

40m · 17 20m · 73

First attributed message: 2026-06-08
Last attributed message: 2026-09-07 06:41 UTC

Observed FT8 message patterns

Attributed sample: 90 messages
Active dates: 21 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -16 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 54.

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 EA4DKJ in decoded directed-looking exchanges:

3A2MW · Monaco EA7R · Spain F5IXN · France G0JEI · England HI8ERQ · Dominican Republic KD4WVO · United States KS7T · United States RX3ASQ · European Russia UA6HGM · European Russia VK3BMA · Australia VK3HA · Australia VK3YP · Australia

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 EA4DKJ

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: IN80 · 43 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,193 km (approx.)
Last such locator decoded: 2026-09-07 06:41 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	EA4DKJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-07 06:39	40m	-16 / -	ZL1HD	- / -	4	Partial capture
09-07 06:34	40m	-10 / -	J38DX	- / -	2	Partial capture
09-03 22:00	40m	-6 / -	2E0ROJ	- / -12	2	Partial capture
09-03 21:59	40m	-3 / -14	UA9CR	+2 / -6	4	Partial capture
09-03 21:56	40m	- / -	DK8HC	-2 / -	5	Partial capture
09-03 21:55	40m	-11 / -	EX7CQ	-5 / -	2	✓ Closing observed
09-03 21:40	40m	-8 / -	RI1FJL	- / -7	4	✓ Closing fragment
09-01 18:43	40m	-12 / +5	EA6ZS	-10 / -	3	✓ Closing observed
08-29 07:44	20m	-6 / -	YS1GMV	- / -	2	✓ Closing fragment
08-28 18:40	20m	-2 / -	W1AW/2	- / -11	2	Partial capture
08-28 06:21	20m	-5 / -25	EA7R	+7 / -18	5	✓ Full exchange observed
08-22 07:22	20m	-6 / -	VK3BMA	- / -25	3	✓ Closing fragment
08-16 06:46	20m	-3 / -	UA6HGM	- / -16	3	✓ Closing fragment
08-16 06:42	20m	-5 / -	VK3HA	- / -20	5	✓ Closing fragment
07-11 08:29	20m	-18 / -	<...>	- / -6	2	Partial capture
07-11 08:29	20m	-15 / -1	LZ01MIKU	-22 / -	2	Partial capture
07-10 06:09	20m	-11 / -	RX3ASQ	- / -	2	✓ Closing fragment
07-09 06:18	20m	-9 / -	<...>	- / -	2	Partial capture
07-09 06:10	20m	-8 / -	T40FRC	- / -	2	Partial capture
07-09 06:05	20m	-3 / -	HI8ERQ	- / -16	6	✓ Closing fragment
06-29 07:12	20m	-14 / -	II6WWA	- / -	2	Partial capture
06-27 06:17	20m	-7 / -	KD4WVO	- / -16	3	✓ Closing fragment
06-27 06:16	20m	-16 / -	KD9ZHF	- / -	2	Partial capture
06-24 06:52	20m	- / -8	F5IXN	-10 / -	5	✓ Closing fragment
06-24 06:51	20m	- / -15	G0JEI	-10 / -	3	✓ Closing fragment
06-23 06:35	20m	-12 / -	KC1UVP	- / -12	2	Partial capture
06-23 06:34	20m	-15 / -	KS7T	- / -11	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
215915  -5  573  CQ EA4DKJ IN80                        a1
215930  +1 2588  EA4DKJ UA9CR -14
215930  +4  573  EA4DKJ PC2J JO22
220000  +4 2588  EA4DKJ UA9CR -14
220015  -3  573  2E0ROJ EA4DKJ -12
220030  +0 2588  EA4DKJ UA9CR -14
220045  -8  573  2E0ROJ EA4DKJ -12
220115  -3 2588  UA9CR EA4DKJ R-06
063400  -8  406  J38DX EA4DKJ IN80 (x2)
063800 -13  760  KS1WK EA4DKJ IN80
063915 -18 1193  ZL1HD EA4DKJ IN80 (x4)

20m

UTC    dB Audio  Message
064815  +0 2786  UA6HGM EA4DKJ IN80
064845  -1  672  <...> EA4DKJ R-16
190245  -2  671  BG7BVI EA4DKJ IN80
072200  -9 2755  VK3BMA EA4DKJ IN80 (x3)
062100  +9 2993  EA4DKJ EA7R -25
062115  -4 2994  EA7R EA4DKJ IN80
062130  +7 2993  EA4DKJ EA7R -25
062145  -6 2994  EA7R EA4DKJ R-18
062200  +4 2993  EA4DKJ EA7R RR73
184030  -1  601  W1AW/2 EA4DKJ R-11 (x2)
074430  -4  582  YS1GMV EA4DKJ IN80 (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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