DC3XD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO43

Receiver-side FT8 activity involving DC3XD, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-17 and 2026-09-05.

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 27 FT8 messages attributed to DC3XD as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (96%), followed by 80 m (4%). Most decodes (96%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (96%); the estimated median was -21 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-21 dB

Estimated median S/N

Bands

80m · 1 40m · 26

First attributed message: 2026-06-17
Last attributed message: 2026-09-05 18:07 UTC

Observed FT8 message patterns

Attributed sample: 27 messages
Active dates: 4 UTC dates
Estimated median S/N: -21 dB
Estimated 10th-90th percentile: -24 to -16 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DC3XD in decoded directed-looking exchanges:

EA5OL · Spain OK1ZJK · Czech Republic SV2HTW · Greece 9A9N · Croatia DA1MHH · Fed. Rep. of Germany DB6LL · Fed. Rep. of Germany DL1YFS · Fed. Rep. of Germany DL4RE · Fed. Rep. of Germany DL5DQZ · Fed. Rep. of Germany F4EIK · France G4DBW · England GJ0KYZ · Jersey

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 DC3XD

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: JO43 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 964 km (approx.)
Last such locator decoded: 2026-09-05 18:07 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	DC3XD S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 18:35	40m	- / -12	PD7LJ	-2 / -	6	✓ Closing fragment
09-05 18:07	40m	-18 / -17	F4JAK	+2 / -	3	Partial capture
09-05 17:49	40m	- / -12	F4EIK	+6 / -	2	✓ Closing fragment
09-05 16:29	40m	- / -15	PE2LRT	-12 / -	4	✓ Closing fragment
09-04 16:55	40m	- / -	F1UNR	-19 / -	3	Partial capture
09-04 16:50	40m	- / -20	DL4RE	-20 / -	2	✓ Closing fragment
09-03 13:10	40m	- / -16	DL5DQZ	0 / -	2	✓ Closing fragment
09-02 17:20	40m	- / -13	G4DBW	-6 / -	2	✓ Closing fragment
09-02 15:24	40m	- / -	DL1YFS	-11 / -	2	✓ Closing fragment
09-02 14:51	40m	- / -19	SP9MRP	+2 / -	2	✓ Closing fragment
08-24 21:21	40m	-22 / -	M6FPW	- / -12	3	Partial capture
08-24 21:13	40m	-21 / -18	RD7O	+3 / -	5	✓ Closing observed
08-24 21:10	40m	- / -14	PD2TX	+1 / -	5	Partial capture
08-24 20:59	40m	-20 / -	2E0CVN	- / -18	3	Partial capture
08-24 20:48	40m	- / -14	DL7DS	-5 / -	5	Partial capture
08-24 20:37	40m	-24 / -	M0MLS	-8 / -8	2	✓ Closing observed
08-24 20:33	40m	-21 / -25	GJ0KYZ	-6 / -7	7	✓ Full exchange observed
08-24 20:30	40m	-22 / -	UB3KGW	- / -	4	Partial capture
08-24 20:28	40m	-22 / -	IU1DXU	-16 / -	2	✓ Closing observed
08-24 20:27	40m	-21 / -13	YO3OBB	-3 / -	2	✓ Closing observed
08-16 21:21	40m	- / -19	DB6LL	-1 / -	3	✓ Closing fragment
08-16 21:09	40m	- / -16	9A9N	-13 / -	2	✓ Closing fragment
08-16 21:01	40m	- / -14	<...>	-19 / -	4	Partial capture
08-16 20:58	40m	- / -11	YO6LM	+7 / -	2	✓ Closing fragment
07-18 11:40	20m	- / -17	SV2HTW	-6 / -	2	✓ Closing fragment
07-17 09:37	40m	- / -	DF1YQ	-12 / -	4	Partial capture
07-11 18:18	20m	- / -	DL1R	-8 / -	6	Partial capture
07-10 11:19	20m	- / -	F5IXN	-16 / -	2	Partial capture
07-08 09:59	20m	- / -24	OK1ZJK	-15 / -	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
162945 -11 1110  DC3XD PE2LRT -15 (x3)
163530 -13 1110  OZ2NYB/P DC3XD JO43
174915  +5  542  DC3XD F4EIK -12 (x2)
180700 -16 1091  F4JAK DC3XD JO43 (x2)
180745  +2  708  DC3XD F4JAK -17
183515  -2 1203  DC3XD PD7LJ JO21 (x6)

20m

UTC    dB Audio  Message
112045 -17 1259  DC3XD F5IXN JN23
113245  +4  670  DC3XD EA5OL RR73
181815  -6 2720  DC3XD DL1R JN58 (x6)
185715 -10  588  DC3XD IT9SBE -12
095415 -23 1181  DC3XD M0PYU IO93
103545 -21 2095  DC3XD EA5DKA -20
112945 -13 1146  DC3XD SV2HTW -23 (x3)
212145 -18 2298  DC3XD II3DRC -20

80m

UTC    dB Audio  Message
200345 -24 1828  R2GFD DC3XD JO43

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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