F4JAK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Locator transmitted in a decoded message: JN18

Receiver-side FT8 activity involving F4JAK, decoded by SO8OO in southeastern Poland. 410 related FT8 messages, 113 CQ messages, observed on 80m, 40m, 20m, across 8 UTC dates. Heard between 2026-04-26 and 2026-07-18.

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

410

Related messages

113

CQ messages

UTC dates heard

-8 dB

Mean decoder S/N

Bands

80m 40m 20m

First seen: 2026-04-26
Last seen: 2026-07-18 14:26 UTC

Frequent QSO partners observed at SO8OO

Stations F4JAK worked most often, as logged from our receiver:

OE5PEN · Austria UA4FKT · European Russia OE9GWV · Austria DL9YNG · Fed. Rep. of Germany TK4QP · Corsica PD2MAC/P · Netherlands OK2USB · Czech Republic PD1HPB · Netherlands DM1RG · Fed. Rep. of Germany DH0GBC · Fed. Rep. of Germany DM8MH · Fed. Rep. of Germany DL8WEM · Fed. Rep. of Germany

Activity Heatmap

Locator transmitted by F4JAK

Approximate centre of JN18, decoded 2026-07-18 16:26 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	F4JAK S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-18 15:59	20m	-12 / -	DJ7LWD	+4 / -14	2	Partial capture
07-18 15:53	20m	-12 / -	DF5DY	- / +1	2	✓ Closing fragment
07-18 15:32	20m	-14 / -	9A4DK	+1 / -16	5	Partial capture
07-18 15:12	20m	- / -15	TK4QP	-20 / -	2	✓ Closing fragment
07-18 15:04	20m	- / -5	UT0CK	-6 / -	8	✓ Closing fragment
07-18 15:03	20m	- / -	9A4DK	-4 / -	3	Partial capture
07-18 14:31	20m	-15 / -	DL1UDO	-7 / -11	4	Partial capture
07-18 13:51	20m	- / +4	OE5PEN	-6 / -	3	✓ Closing fragment
07-18 13:21	20m	-13 / -	EA7HS	- / -15	2	Partial capture
07-18 13:08	20m	-12 / -	DL9YNG	- / -	2	✓ Closing fragment
07-18 12:57	20m	-11 / -	EA3RO	- / -15	2	Partial capture
07-18 12:12	20m	- / -20	F4MUD	-12 / -	3	Partial capture
07-18 11:33	20m	- / -12	EB3EAW	-5 / -	3	Partial capture
07-18 11:32	20m	- / -	PD1ADA	-19 / -	4	Partial capture
07-18 11:13	20m	- / +9	PD0IFI	-14 / -	2	✓ Closing fragment
07-18 11:08	20m	- / -	DL1UDO	-7 / -	3	Partial capture
07-18 10:51	20m	- / -10	DF3IS	-5 / -	2	Partial capture
07-18 10:48	20m	- / -	PA3MVD	-24 / -	2	Partial capture
07-18 10:46	20m	- / -	CT1BFP	-22 / -	2	Partial capture
07-18 10:38	20m	- / +6	PD1HPB	-12 / -	2	✓ Closing fragment
07-18 10:37	20m	- / -	F4HRM	-16 / -	4	Partial capture
07-18 10:35	20m	- / -	PA3MVD	-22 / -	3	Partial capture
07-18 10:32	20m	- / -17	R4IK	-6 / -	2	✓ Closing fragment
07-18 10:28	20m	- / -19	DF3IS	-4 / -	5	Partial capture
07-18 10:18	20m	- / -	LZ3CB	-7 / -	3	Partial capture
07-18 10:13	20m	- / -	DL1R	-2 / -	8	Partial capture
07-16 06:53	40m	- / +5	DL8WEM	-6 / -	3	✓ Closing fragment
07-16 06:19	40m	- / -	DM1RG	-6 / -	2	✓ Closing fragment
06-19 19:42	40m	-20 / -14	R3LDM	-14 / -	3	✓ Closing observed
06-19 19:40	40m	- / -	OO0O	+2 / -	6	Partial capture
06-19 19:38	40m	- / -5	ON5ACO	-10 / -	3	✓ Closing fragment
06-15 19:38	40m	-11 / -4	EG20RCH	-10 / -7	6	Partial capture
06-15 19:36	40m	- / -	RN6HK	-2 / -	2	Partial capture
06-15 19:32	40m	- / -	SV1EKI	-2 / -	9	Partial capture
06-15 19:31	40m	- / -	UX7QV	-2 / -	6	Partial capture
06-15 19:28	40m	- / -	RN3ZBX	-8 / -	2	Partial capture
06-15 19:24	40m	- / -	UX7QV	+5 / -	7	Partial capture
06-15 19:23	40m	- / -	SV1EKI	-5 / -	4	Partial capture
06-15 19:20	40m	- / -	PA3AGN	-8 / -	4	Partial capture
06-15 19:20	40m	- / -	F4EAD	-11 / -	2	Partial capture
06-15 19:12	40m	- / -	UX5UW	0 / -	5	Partial capture
06-15 19:05	40m	- / -	SV1EKI	-2 / -	5	Partial capture
06-15 19:01	40m	- / -	OZ9FF	-1 / -	5	Partial capture
06-15 18:58	40m	- / -	UX5UW	-7 / -	2	Partial capture
06-15 18:54	40m	- / -	PD2RAM	-2 / -	2	Partial capture
06-15 18:54	40m	- / -	SV1EKI	-3 / -	8	Partial capture
06-15 18:51	40m	- / -14	OZ9FF	-3 / -	4	Partial capture
06-15 18:48	40m	- / -	UR5WDL	-4 / -	11	Partial capture
06-15 18:42	40m	- / -	DG3DAF	-10 / -	2	Partial capture
06-15 18:39	40m	- / -	SV1EKI	0 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
155245 -12  746  CQ F4JAK JN18 (x2)
155345  -9  746  DF5DY F4JAK +01 (x2)
155445 -10  746  CQ F4JAK JN18 (x3)
155745 -11  746  DB4BJ F4JAK -13
155900  +4  745  F4JAK DJ7LWD JO50
155915 -12  746  DJ7LWD F4JAK -14
161415 -14  745  CQ F4JAK JN18 (x5)

40m

UTC    dB Audio  Message
194230  +3  533  F4JAK OO0O JO11
194300 -14 1042  F4JAK R3LDM RR73
194300  -2  533  F4JAK OO0O JO11 (x2)
061930  -7  708  F4JAK DM1RG JO62 (x2)
062400 -12  708  F4JAK SM7JKW R-13
062630 -19 1953  F4JAK F5RRS JN36
062645  -9  708  DL1RI F4JAK R+04
063045 -12  708  PD2WL F4JAK +00
063145  -4  708  CQ F4JAK JN18
064130 -10  709  F4JAK HA1DLI R-08
065300  -4  708  F4JAK DL8WEM JN48 (x3)

Decoder S/N history by band

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