DM4ZUL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Locator transmitted in a decoded message: JO71

Receiver-side FT8 activity involving DM4ZUL, decoded by SO8OO in southeastern Poland. 45 related FT8 messages, 7 CQ messages, observed on 80m, 40m, 20m, 10m, across 7 UTC dates. Heard between 2026-06-15 and 2026-08-19.

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

Related messages

CQ messages

UTC dates heard

-3 dB

Mean decoder S/N

Bands

80m 20m 40m 10m

First seen: 2026-06-15
Last seen: 2026-08-19 14:56 UTC

Frequent QSO partners observed at SO8OO

Stations DM4ZUL worked most often, as logged from our receiver:

DL0MFK/LH · Fed. Rep. of Germany ×2 DL1DEU · Fed. Rep. of Germany UA4FKT · European Russia IU4PPL · Italy F6FHZ · France DO1XD · Fed. Rep. of Germany RK0SK · Asiatic Russia EB3JT · Spain SP9MOA · Poland F5RRS · France DO2KMB · Fed. Rep. of Germany DO9BAU · Fed. Rep. of Germany

Activity Heatmap

Locator transmitted by DM4ZUL

Approximate centre of JO71, decoded 2026-08-18 16:40 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	DM4ZUL S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-19 16:55	80m	+13 / -	DA6GT	- / -12	3	Partial capture
08-19 16:54	80m	+17 / 0	OH5KNL	-10 / -5	4	Partial capture
08-19 14:44	10m	-9 / -	LU6YR	- / -12	3	✓ Closing fragment
08-19 14:42	10m	-2 / -	UX7QV	- / -	2	✓ Closing fragment
08-19 14:39	10m	+2 / -	DO9BAU	- / -16	2	✓ Closing fragment
08-19 14:36	10m	+1 / -	4X6ST	- / -8	3	Partial capture
08-18 16:43	80m	+5 / -	OZ1EDR	- / -	2	Partial capture
08-18 16:42	80m	+4 / -	DO1XD	-7 / -	3	✓ Closing observed
08-16 13:57	40m	-4 / 0	DL0MFK/LH	-17 / -3	7	✓ Full exchange observed
08-16 13:50	20m	- / -15	EB3JT	-12 / -	3	✓ Closing fragment
08-16 13:38	40m	+2 / -	MN0HNQ/LH	- / -10	2	Partial capture
08-16 06:47	40m	-2 / -	OA4ENG	- / -20	3	Partial capture
08-12 19:59	80m	+8 / -	DO2KMB	-8 / -	3	✓ Closing observed
08-12 19:57	80m	-2 / -11	YO4LUP	-2 / -2	5	✓ Full exchange observed
08-09 16:27	40m	0 / -	RC6OZ	- / 0	2	Partial capture
08-09 16:26	40m	-7 / -	IU4PPL	- / +2	2	✓ Closing fragment
08-09 16:21	40m	-13 / -	F6FHZ	- / -7	3	✓ Closing fragment
08-09 16:15	40m	0 / -	<...>	- / +1	3	Partial capture
07-30 20:58	80m	+6 / -4	F5RRS	-2 / +7	4	✓ Full exchange observed
07-30 20:57	80m	+5 / -	DL2RN	- / +4	3	✓ Closing fragment
07-30 20:54	80m	+16 / -2	UA4FKT	+9 / +6	5	✓ Full exchange observed
07-30 20:54	80m	+16 / +3	YR50NADIA	+9 / +7	2	Partial capture
07-30 20:53	80m	+17 / -	<...>	- / 0	2	Partial capture
07-30 20:49	80m	+19 / -	YE4FNN	- / -16	4	Partial capture
07-13 17:33	80m	- / -	F5RRS	-5 / -	2	Partial capture
07-13 17:31	80m	+7 / +10	DL2VN	-6 / -	4	✓ Full exchange observed
07-13 17:30	80m	+12 / +7	DL1DEU	-1 / -	5	✓ Full exchange observed
07-13 17:26	80m	+6 / 0	HF5A	+6 / +4	5	✓ Full exchange observed
07-13 17:24	80m	+5 / -	OK2BPU	+2 / -	2	Partial capture
07-13 17:17	20m	+8 / -	RK0SK	- / -5	2	✓ Closing fragment
07-12 06:42	40m	+2 / -	WA4FU	- / -10	2	Partial capture
06-14 07:05	40m	+6 / -	<...>	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
164015  +4  501  CQ DM4ZUL JO71 (x2)
164215  +4  501  DG4BZ DM4ZUL RR73
164230  -7  501  DM4ZUL DO1XD JO62
164245  +3  501  DO1XD DM4ZUL +18 (x2)
164345  +5  501  OZ1EDR DM4ZUL +12 (x2)
165400 +17  728  OH5KNL DM4ZUL -05
165515  -9 2378  DM4ZUL OH5KNL R+00
165515  +8  728  DA6GT DM4ZUL -12
165545 -12 2378  DM4ZUL OH5KNL R+00
165545 +13  727  DA6GT DM4ZUL -12
165615  -9 2378  DM4ZUL OH5KNL R+00
165645 +17  727  DA6GT DM4ZUL -04

10m

UTC    dB Audio  Message
193515 -16  846  DM4ZUL F6FHZ R+12
193730  -5 2247  DM4ZUL OZ2SPACE R-21
143330  +7  669  <...> DM4ZUL -12
143645  -1  821  4X6ST DM4ZUL -08 (x3)
143900  +6  821  PY2FUI DM4ZUL RR73
143930  +2  821  DO9BAU DM4ZUL -16 (x2)
144245  -3  822  UX7QV DM4ZUL +13 (x2)
144400  -7  822  LU6YR DM4ZUL -12 (x3)
144530 -16  822  F6FDY DM4ZUL +19

40m

UTC    dB Audio  Message
064815  -1  784  OA4ENG DM4ZUL -20
133615  +3  738  <...> DM4ZUL -04
133815  -1  738  MN0HNQ/LH DM4ZUL -10 (x3)
135445  +0  834  <...> DM4ZUL -04 (x2)
135730 -13 1402  DM4ZUL DL0MFK/LH R+00 (x2)
135800 -12 1834  DM4ZUL 3Z0L JO81
135815  -5  834  DL0MFK/LH DM4ZUL +20 (x2)
135900 -18 1402  DM4ZUL DL0MFK/LH RR73
135915  -7  834  DL0MFK/LH DM4ZUL -03
140000 -19 1402  DM4ZUL DL0MFK/LH RR73

20m

UTC    dB Audio  Message
065645  -5  876  <...> DM4ZUL -06
180600 -22 2110  ER3CT DM4ZUL RR73
171700  +6 2091  RK0SK DM4ZUL -05 (x2)
134815  +3  723  F5OYA/P DM4ZUL -07
134845 -11 1222  <...> DM4ZUL -07
135000 -14 1222  DM4ZUL EB3JT JN01 (x3)

Decoder S/N history by band

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