9A4DK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Croatia Locator transmitted in a decoded message: JN85

Receiver-side FT8 activity involving 9A4DK, decoded by SO8OO in southeastern Poland. 907 related FT8 messages, 13 CQ messages, observed on 40m, 20m, across 23 UTC dates. Heard between 2026-04-29 and 2026-07-28.

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

907

Related messages

CQ messages

UTC dates heard

-7 dB

Mean decoder S/N

Bands

20m 40m

First seen: 2026-04-29
Last seen: 2026-07-28 05:56 UTC

Frequent QSO partners observed at SO8OO

Stations 9A4DK worked most often, as logged from our receiver:

IQ9USG · Sicily ×2 R3IDH · European Russia ×2 SP5ROM · Poland ×2 UR0UF · Ukraine ×2 DB3KB · Fed. Rep. of Germany DK5UR · Fed. Rep. of Germany OK1JMB · Czech Republic F6GDC · France DB1LBS/P · Fed. Rep. of Germany LA6GIA · Norway HA8UM · Hungary GM3AND · Scotland

Activity Heatmap

Locator transmitted by 9A4DK

Approximate centre of JN85, decoded 2026-07-28 08:57 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	9A4DK S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-28 09:02	40m	-16 / -	PD3PAM	- / -2	2	✓ Closing fragment
07-28 08:23	40m	-12 / -	GM5CAR	- / -	2	Partial capture
07-28 08:22	40m	-10 / -	ON3CCM	- / -	2	✓ Closing fragment
07-28 08:20	40m	-12 / -	S55X	- / -	3	Partial capture
07-28 08:15	40m	-14 / -	M0SCS	- / -	2	Partial capture
07-28 08:13	40m	-14 / -	Z62NS	- / -	2	Partial capture
07-28 07:55	20m	- / -	F4HSB	-12 / -	3	Partial capture
07-28 07:51	20m	-15 / -	NR5G	- / -	3	Partial capture
07-28 07:21	20m	- / -8	9A2L	-12 / -	2	✓ Closing fragment
07-28 06:59	20m	- / -12	EA4EQ	-11 / -	6	Partial capture
07-28 06:41	20m	-15 / -	UR4UUY	-6 / -16	4	✓ Full exchange observed
07-28 06:27	20m	-16 / -	SQ4RD	- / -	2	Partial capture
07-28 06:24	20m	-14 / -	E71DOC	- / -8	3	Partial capture
07-27 14:56	20m	- / -	IZ1LBN	-12 / -	2	✓ Closing fragment
07-27 13:50	20m	- / -	MW7RHR	-12 / -	3	Partial capture
07-27 13:47	20m	- / +1	EA1JG	-11 / -	3	✓ Closing fragment
07-27 13:43	20m	- / -	MW7RHR	-9 / -	3	Partial capture
07-27 06:54	20m	-12 / -	KJ5PTH	- / -	2	Partial capture
07-27 06:50	20m	-10 / -	UR4QWW	- / +3	3	Partial capture
07-27 06:37	20m	-14 / -	OD5ZZ	- / -18	2	Partial capture
07-27 06:32	20m	- / -11	DL8OCI	-3 / -	2	✓ Closing fragment
07-27 06:27	20m	-13 / -	N3LAG	- / -	4	Partial capture
07-27 06:19	20m	-13 / -	SP9LKN	- / -	2	✓ Closing fragment
07-27 06:08	20m	- / -	PD2WL	-19 / -	2	✓ Closing fragment
07-27 05:57	20m	- / -14	DL3HBF	+6 / -	2	✓ Closing fragment
07-27 05:55	20m	-19 / +2	IK2JYT	-12 / -	2	Partial capture
07-27 05:54	20m	-16 / -	YO6LA	- / -8	2	Partial capture
07-26 11:23	40m	-16 / +8	YO6LRV	-10 / -	5	✓ Closing observed
07-26 11:20	40m	-19 / -	IW2KIC	- / -	2	Partial capture
07-26 11:06	40m	-20 / -	DK5UR	- / +1	2	✓ Closing fragment
07-26 10:43	40m	-18 / +6	DM2BR	-18 / -3	4	✓ Full exchange observed
07-26 10:32	40m	-12 / -	PA2RO	- / -	2	Partial capture
07-26 10:21	40m	-20 / -3	SP5RZL	-15 / -	3	✓ Closing observed
07-26 09:34	40m	-16 / -	PD4AH	- / -8	2	Partial capture
07-26 09:32	40m	-12 / -	<...>	- / -19	2	Partial capture
07-26 09:28	40m	-18 / -	ON5ND	- / -12	3	Partial capture
07-26 09:21	40m	-13 / -	M7INZ	- / -11	5	Partial capture
07-26 08:38	40m	-16 / -	MW0KJN	- / -	2	Partial capture
07-26 07:40	20m	- / -4	R4AC	-4 / -	2	✓ Closing fragment
07-25 16:49	20m	-10 / -	S21VHF	- / -	2	Partial capture
07-25 16:46	20m	-16 / -	R3UCZ	- / -	5	Partial capture
07-25 16:43	20m	-21 / -	BG2DIH	- / -	2	Partial capture
07-25 16:41	20m	-17 / -	JG5VFK	- / -	2	Partial capture
07-25 16:37	20m	-15 / -	WH6S	- / -	2	Partial capture
07-25 16:31	40m	-16 / -	UB8FBI	- / -2	5	Partial capture
07-25 16:27	40m	-16 / -	UB3FDD	- / -	4	Partial capture
07-25 16:23	40m	-11 / -	PD0NGL	- / -	2	Partial capture
07-25 16:19	40m	-13 / -	OE5WRO	-12 / -12	7	✓ Closing observed
07-25 16:17	40m	-11 / -	EA5GGU	- / -	4	Partial capture
07-25 16:15	40m	-12 / -	IW2KGL	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
081830 -14  938  IN3JXN 9A4DK R+07
082030 -12  937  S55X 9A4DK JN85 (x3)
082215 -13  937  ON3CCM 9A4DK JN85 (x2)
082345 -10  938  GM5CAR 9A4DK JN85 (x2)
082615 -15  937  EA2EED 9A4DK JN85
084700 -15  938  OK2HF/P 9A4DK R+01
085430 -17  938  OK5ARI 9A4DK JN85
085730 -16  937  ON5JDA 9A4DK JN85
090230 -16  937  PD3PAM 9A4DK R-02 (x2)
090600 -17  938  EA3EUX 9A4DK 73

20m

UTC    dB Audio  Message
065930  -8 1061  9A4DK EA4EQ -12 (x5)
072100 -10 1458  9A4DK 9A2L -08 (x2)
073245 -18 1079  9A4DK 8S7DL RR73
074300 -17  991  9A4DK PD9T RR73
075115 -17  975  NR5G 9A4DK JN85 (x3)
075545 -13 1718  9A4DK F4HSB JN37 (x3)

Decoder S/N history by band

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