EC4DJB — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

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

Receiver-side FT8 activity involving EC4DJB, decoded by SO8OO in southeastern Poland. 88 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 15 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-11-06.

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 88 FT8 messages attributed to EC4DJB as the transmitting token by decoded message structure across 15 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (55%), followed by 40 m (32%) and 20 m (13%). The busiest six-hour window was 09:00-15:00 UTC, containing 48% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (64%); the estimated median was -18 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

80m · 1 40m · 28 20m · 11 10m · 48

First attributed message: 2026-06-06
Last attributed message: 2026-11-06 09:20 UTC

Observed FT8 message patterns

Attributed sample: 88 messages
Active dates: 15 UTC dates
Estimated median S/N: -18 dB
Estimated 10th-90th percentile: -22 to -9 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 56, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 5.

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 EC4DJB in decoded directed-looking exchanges:

F4FSY · France FM5GB · Martinique OG5O · Finland OH3JF · Finland RX3ASQ · European Russia SP4HXV · Poland SV7SXE · Greece F4LQJ · France HI8J · Dominican Republic M9KJY · England OE5PEN · Austria PI4TX · Netherlands

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 EC4DJB

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 · 55 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,193 km (approx.)
Last such locator decoded: 2026-11-06 09:20 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	EC4DJB S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 09:18	10m	-8 / -	<...>	- / -	4	Partial capture
11-06 09:13	10m	-12 / -	TA2AUL	- / -	2	Partial capture
11-04 10:38	10m	-11 / -	FR5ZE	- / -	4	Partial capture
11-04 10:37	10m	-12 / -	OG5O	- / -	2	✓ Closing fragment
11-04 10:33	10m	-20 / -	<...>	- / -	3	Partial capture
11-04 09:42	10m	-18 / -	5R8IC	- / -19	5	Partial capture
11-04 09:40	10m	-15 / -	ZS6TV	- / -	2	Partial capture
10-24 14:58	10m	-14 / -	EA4IZH	- / -13	3	Partial capture
10-24 14:56	10m	-16 / -	SV7SXE	- / -5	3	✓ Closing fragment
10-21 17:30	80m	- / -15	DH0GSU	-2 / -	3	✓ Closing fragment
10-13 12:21	10m	-19 / -	SM2OTU	- / -	2	Partial capture
10-13 12:15	10m	-20 / -	FM5GB	- / -	2	✓ Closing fragment
10-13 12:14	10m	-18 / -	OH3JF	- / -6	2	✓ Closing fragment
10-12 07:39	40m	- / -9	HB9ELE	+5 / -	2	✓ Closing fragment
10-03 17:05	10m	-20 / -	LU2DKT	- / -	2	Partial capture
10-03 17:01	10m	-18 / -	TG9ADQ	- / -	4	Partial capture
10-01 04:33	80m	- / -10	F4FSY	-3 / -	3	Partial capture
10-01 04:32	80m	- / -	F4BJN	-21 / -	2	✓ Closing fragment
10-01 04:28	80m	-18 / -15	DO2TM	-13 / -	2	Partial capture
09-23 09:45	40m	- / -16	DF3IS	-11 / -	3	✓ Closing fragment
09-17 04:33	40m	- / -17	9A4AA	-2 / -	2	✓ Closing fragment
09-12 03:27	40m	- / -	UR4QWW	-3 / -	5	Partial capture
09-12 03:21	40m	-18 / -18	5B4AMM	+6 / -8	5	✓ Full exchange observed
09-10 08:35	40m	- / -12	ON4AOI	-1 / -	2	✓ Closing fragment
09-07 05:48	40m	- / -16	G8OO	-2 / -	4	✓ Closing fragment
09-06 03:52	40m	- / -8	OZ3FYN/P	+3 / -	3	✓ Closing fragment
09-06 03:20	40m	-22 / -	HA7TM	- / -	3	Partial capture
09-06 03:16	40m	-16 / -	4X1FK	- / -	2	Partial capture
09-06 03:08	40m	-19 / -	N3YPL	- / -22	3	✓ Closing fragment
09-06 03:05	40m	-20 / -	KP4MAQ	- / -22	2	Partial capture
09-05 08:07	40m	- / -13	F4DIA	-22 / -	2	✓ Closing fragment
08-29 15:53	20m	-14 / -	OH2ZZ	- / -3	3	Partial capture
08-29 07:15	20m	- / -15	CT3MD	0 / -	3	Partial capture
08-27 15:46	40m	- / -18	F5ADE	-10 / -	2	Partial capture
08-26 17:09	40m	- / -13	IK0CHU	+2 / -	2	✓ Closing fragment
08-26 17:03	20m	-12 / -10	PI4TX	-3 / -	4	✓ Closing observed
08-23 09:52	20m	- / -17	F4LQJ	-6 / -	2	✓ Closing fragment
08-23 03:34	40m	-9 / -	4X1UF	-19 / -	2	✓ Closing observed
08-23 03:13	40m	-17 / -	HK3YL	- / -22	5	Partial capture
08-23 03:11	40m	-18 / -	N1NRL	- / -	2	✓ Closing fragment
08-22 16:29	20m	- / -2	OE5PEN	-12 / -	2	✓ Closing fragment
08-22 08:07	20m	- / -9	M9KJY	0 / -	3	✓ Closing fragment
08-22 07:12	20m	- / -20	YO4NF	+1 / -	2	✓ Closing fragment
08-22 03:09	20m	- / -7	HI8J	-13 / -	2	✓ Closing fragment
08-16 15:26	10m	- / -4	F4FSY	-22 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
103515 -20 2106  <...> EC4DJB IN80
103545 -12 2105  TF5B EC4DJB IN80
103700  -6 2105  OG5O EC4DJB IN80 (x2)
103830 -10 2105  FR5ZE EC4DJB IN80 (x4)
091300 -13 1188  TA2AUL EC4DJB IN80 (x2)
091530 -10 1188  SV2AOB EC4DJB IN80
091815 -10 1188  <...> EC4DJB IN80 (x4)

80m

UTC    dB Audio  Message
042815 -18 1251  DO2TM EC4DJB IN80
042900 -13 2352  EC4DJB DO2TM -15
043200 -20 1252  EC4DJB F4BJN 73 (x2)
043300  +0 1409  EC4DJB F4FSY -10 (x3)
173015  -4 1849  EC4DJB DH0GSU -15 (x3)

40m

UTC    dB Audio  Message
032745  +2 1579  EC4DJB UR4QWW KN77 (x5)
033130 -20  901  K0BFG EC4DJB IN80
033300 -22 1997  EC4DJB NF3R -14
043315  -1  533  EC4DJB 9A4AA -17 (x2)
044330 -21 2020  EC4DJB 9H4JX RR73
094545  -9 1848  EC4DJB DF3IS -16 (x3)
073945 +12  638  EC4DJB HB9ELE -09 (x2)

20m

UTC    dB Audio  Message
162945 -12 2103  EC4DJB OE5PEN RR73
095245  -9 1947  EC4DJB F4LQJ -17 (x2)
043930 -13 1614  ZL1OGX EC4DJB IN80
170330  -2 2078  EC4DJB PI4TX JO22 (x2)
170415 -12  794  PI4TX EC4DJB RR73
170430  -4 2078  EC4DJB PI4TX 73
153800 -14  276  EC4DJB OH3OJ -15
071515  +1  865  EC4DJB CT3MD -15 (x3)
155330 -12 1004  OH2ZZ EC4DJB R-03 (x3)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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