DC4UX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Locator transmitted in a decoded message: JN49

Receiver-side FT8 activity involving DC4UX, decoded by SO8OO in southeastern Poland. 93 related FT8 messages, 29 CQ messages, observed on 40m, 10m, across 7 UTC dates. Heard between 2026-05-02 and 2026-07-21.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee

Overview

Related messages

CQ messages

UTC dates heard

-11 dB

Mean decoder S/N

Bands

40m 10m

First seen: 2026-05-02
Last seen: 2026-07-21 07:42 UTC

Frequent QSO partners observed at SO8OO

Stations DC4UX worked most often, as logged from our receiver:

EA5J · Spain SQ9BDB · Poland PE1NPS · Netherlands IK4LZH · Italy YO5OSF · Romania ON3MOH · Belgium DL0HAM · Fed. Rep. of Germany F6BEC · France PH9OY · Netherlands DL6EL · Fed. Rep. of Germany DK4VF · Fed. Rep. of Germany SQ1MNG · Poland

Activity Heatmap

Locator transmitted by DC4UX

Approximate centre of JN49, decoded 2026-07-21 09:38 UTC. A transmitted locator is not proof of the operator's permanent location.

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	DC4UX S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-21 09:38	10m	-16 / -14	IK1MJK	-18 / -22	6	Partial capture
07-21 09:36	10m	- / -4	IQ4JO	-10 / -	2	✓ Closing fragment
07-21 09:31	10m	-12 / -	DG2SAT	- / -21	5	Partial capture
06-12 15:58	40m	- / -	DL0HAM	-6 / -	2	✓ Closing fragment
06-12 15:53	40m	-21 / -	DK0KG	-22 / -	2	Partial capture
06-12 15:50	40m	-19 / -	F4FSY	- / -	2	✓ Closing fragment
06-12 15:41	40m	-18 / +5	SQ1MNG	-6 / -	3	✓ Full exchange observed
06-12 15:40	40m	-20 / -	9A4ZM	-4 / +6	4	Partial capture
06-12 15:35	40m	- / -2	DL6UM	-5 / -	6	✓ Closing fragment
06-12 15:29	40m	- / -	SQ9BDB	-6 / -	2	✓ Closing fragment
06-12 15:25	40m	- / 0	9A1CCB	0 / -	4	✓ Closing fragment
06-12 15:21	40m	-21 / -	DL6EL	-9 / +8	8	✓ Closing observed
06-12 15:20	40m	-20 / +1	F6BEC	-17 / +5	5	✓ Full exchange observed
06-03 15:24	10m	-16 / -	CX1AR	- / -	3	Partial capture
06-03 15:21	10m	-15 / -	EA5J	- / -4	4	✓ Closing fragment
05-29 15:02	40m	-20 / -11	YO5OSF	+9 / +2	5	✓ Full exchange observed
05-29 15:01	40m	- / -7	DL3LBK	-18 / -	2	Partial capture
05-29 15:01	40m	-19 / -16	IK0QDM	-15 / -	7	✓ Closing observed
05-29 14:58	40m	-22 / -	PH9OY	- / -2	2	✓ Closing fragment
05-29 14:54	40m	-16 / -	DK4VF	-20 / -	2	✓ Closing observed
05-29 14:52	40m	-21 / -	M0IAP	- / -11	3	✓ Closing fragment
05-29 14:51	40m	-18 / -	ON3MOH	- / +7	2	✓ Closing fragment
05-29 14:47	40m	-17 / -9	DL2VLL	-17 / -18	4	Partial capture
05-29 14:44	40m	-13 / -	ON3MOH	- / -4	4	Partial capture
05-29 14:42	40m	-13 / -	PA2RO	- / +2	2	✓ Closing fragment
05-29 14:40	40m	-18 / -	IK4LZH	-8 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
093130  -8 2084  DG2SAT DC4UX -21 (x5)
093615  -9 2584  DC4UX IQ4JO R-04 (x2)
093730 -17 2083  CQ DC4UX JN49 (x2)
093830 -16 2083  IK1MJK DC4UX -22 (x4)
094215 -15 2082  DC4UX IK1MJK R-14 (x2)

40m

UTC    dB Audio  Message
154200  -3 2037  DC4UX SQ1MNG 73
154245 -21 2035  9A4ZM DC4UX +06 (x2)
154430 -13 2036  DC4UX DK5LQ +16
154645 -21 2035  CQ DC4UX JN49                         a1 (x2)
154945 -16 2036  HB9MZI DC4UX -20
155045 -17 2035  F4FSY DC4UX R+15 (x2)
155215 -20 2035  HB9MZI DC4UX -20
155330 -22 1396  DC4UX DK0KG JN49
155345 -21 2035  DK0KG DC4UX +28
155615 -19 2035  CQ DC4UX JN49
155830  -6 1863  DC4UX DL0HAM +11 (x2)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.