DK4TX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Locator transmitted in a decoded message: JO33

Receiver-side FT8 activity involving DK4TX, decoded by SO8OO in southeastern Poland. 197 related FT8 messages, 44 CQ messages, observed on 40m, 20m, across 4 UTC dates. Heard between 2026-08-01 and 2026-08-23.

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.

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Overview

197

Related messages

CQ messages

UTC dates heard

-4 dB

Mean decoder S/N

Bands

20m 40m

First seen: 2026-08-01
Last seen: 2026-08-23 14:59 UTC

Frequent QSO partners observed at SO8OO

Stations DK4TX worked most often, as logged from our receiver:

DL6MRS · Fed. Rep. of Germany ×2 HA1DSL · Hungary ×2 F4HSB · France HA7TM · Hungary IN3IZQ · Italy DK4RH · Fed. Rep. of Germany DK3ME · Fed. Rep. of Germany DM5JBN · Fed. Rep. of Germany US1MM · Ukraine DG4LXM · Fed. Rep. of Germany R5AV · European Russia DK7ZT · Fed. Rep. of Germany

Activity Heatmap

Locator transmitted by DK4TX

Approximate centre of JO33, decoded 2026-08-23 16:55 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	DK4TX S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 16:57	40m	- / -	US3EW	-9 / -	2	Partial capture
08-23 16:56	40m	- / -	UA3GDJ	+6 / -	5	Partial capture
08-23 16:56	40m	0 / -4	UR4LG	-5 / -7	6	Partial capture
08-23 16:48	40m	-4 / -	US1MM	+3 / -17	4	✓ Closing observed
08-23 16:44	40m	- / -	DL5DQZ	+6 / -	3	Partial capture
08-23 16:43	40m	-10 / -	OE9GWV	-17 / -	2	✓ Closing observed
08-23 16:39	40m	-9 / -1	HA1DSL	-16 / -6	4	✓ Full exchange observed
08-23 16:37	40m	-6 / -	DL9YNG	-12 / +1	4	✓ Closing observed
08-23 16:34	40m	-12 / -9	UA3VVA	-11 / -2	4	✓ Full exchange observed
08-23 16:28	40m	- / +9	DL7SLB	-2 / -	2	✓ Closing fragment
08-23 16:28	40m	-7 / -5	IK4LZH	-4 / +3	6	✓ Full exchange observed
08-23 16:25	40m	-11 / -	DK4RH	- / -	2	✓ Closing fragment
08-23 16:23	40m	-10 / -	DK3ME	+4 / -	5	✓ Full exchange observed
08-23 16:20	40m	-6 / -	IN3LHF	- / +9	2	✓ Closing fragment
08-23 16:09	20m	- / -	F4BYA	+1 / -	3	Partial capture
08-22 09:35	40m	-5 / -	PH0RON	- / +7	2	✓ Closing fragment
08-22 09:31	40m	-8 / -	DL7HS	- / -	4	Partial capture
08-22 09:30	40m	-8 / -	GJ0KYZ	- / -4	3	Partial capture
08-22 09:28	40m	-11 / -	OE8PIT	-14 / -10	3	✓ Closing observed
08-22 09:23	40m	-7 / -9	UT4PA	+5 / -10	7	✓ Full exchange observed
08-22 09:20	40m	-6 / -	ON8MA	- / -3	2	✓ Closing fragment
08-22 09:18	40m	-12 / -	DL6MRS	-4 / -	6	✓ Full exchange observed
08-22 09:18	40m	-6 / -	DG4LXM	-8 / 0	4	✓ Closing observed
08-22 09:15	40m	-9 / +7	DL7ARV	-4 / +1	5	✓ Full exchange observed
08-22 09:14	40m	-9 / -	F8MRQ	- / -6	2	✓ Closing fragment
08-22 09:12	40m	-8 / -	DD7EE	-13 / -	4	✓ Closing observed
08-22 09:08	20m	-10 / -	2E0BRU	- / -	2	✓ Closing fragment
08-22 08:12	20m	- / +7	F4HSB	-2 / -	3	✓ Closing fragment
08-20 19:00	40m	+4 / -6	CT2HEX	-10 / -6	4	✓ Full exchange observed
08-20 18:57	40m	-1 / -	GW0NKG	- / -7	3	✓ Closing fragment
08-20 18:54	40m	+4 / -	DB3MAX	+2 / +8	4	✓ Closing observed
08-20 18:53	40m	+4 / -	PD1BER	-1 / +1	3	✓ Closing observed
08-20 18:53	40m	+4 / -	F5MJN	-3 / +5	6	✓ Closing observed
08-20 18:26	20m	- / -11	RY7G	+10 / -	4	✓ Closing fragment
08-20 18:22	40m	+11 / -	DH5KLI	-20 / -4	2	Partial capture
08-20 18:18	40m	+17 / -23	UR5XEJ	-4 / -	4	✓ Closing observed
08-20 18:17	40m	+13 / -8	SP6FME	-8 / -7	5	✓ Full exchange observed
08-20 18:16	40m	+10 / -2	PA1MOS	-2 / -	4	✓ Full exchange observed
08-20 18:12	40m	+2 / -	IN3IZQ	- / -2	2	✓ Closing fragment
08-20 18:10	40m	-4 / -	OH4EIJ	- / -	2	Partial capture
08-20 18:07	40m	- / -3	DK7ZT	-7 / -	4	✓ Closing fragment
08-20 18:05	40m	-8 / -10	SP6FME	+8 / 0	6	Partial capture
08-20 18:00	40m	-9 / -13	RD4AAK	-16 / -11	3	✓ Full exchange observed
08-20 17:58	40m	-3 / +5	IV3VFP	0 / -	4	✓ Full exchange observed
08-20 17:56	40m	- / +3	DK7ZT	-10 / -	2	Partial capture
08-20 17:56	40m	+2 / -11	DL0NS	-12 / -1	3	✓ Full exchange observed
08-20 17:36	40m	- / -	DD7EE	-4 / -	2	Partial capture
08-20 17:36	40m	-8 / -8	R5AV	+2 / -	3	✓ Closing observed
08-20 17:33	40m	- / -	DD7EE	-4 / -	2	Partial capture
08-20 17:30	40m	- / -	DD7EE	-2 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
164930  +3  633  DK4TX US1MM 73
165545  +0  727  CQ DK4TX JO33
165600  -9  726  DK4TX UR4LG KN89
165600  +3 1640  DK4TX UA3GDJ KO92
165615  +3  727  UR4LG DK4TX -07 (x3)
165730  -7 1078  DK4TX US3EW KN78
165800  +6 1640  DK4TX UA3GDJ KO92
165800 -11 1078  DK4TX US3EW KN78
165800  -6  726  DK4TX UR4LG R-04
165830  +6 1640  DK4TX UA3GDJ KO92
165830  -1  725  DK4TX UR4LG R-04
165900  +5 1640  DK4TX UA3GDJ KO92 (x2)

20m

UTC    dB Audio  Message
182715 +10  560  DK4TX RY7G R-14 (x2)
183100 -19  682  ZA5G DK4TX R-02
183215  -5  682  DK4TX YO4NF -06 (x2)
184000 -10  661  F1IQH DK4TX RR73
081245  -3 1923  DK4TX F4HSB JN37 (x3)
085145 -22 2370  CQ DK4TX JO33                         a1
090815  -7  640  2E0BRU DK4TX JO33 (x2)
160945  +5 2912  DK4TX F4BYA JN19 (x3)

Decoder S/N history by band

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