DO1SJF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Fed. Rep. of Germany Locator transmitted in a decoded message: JN48

Receiver-side FT8 activity involving DO1SJF, decoded by SO8OO in southeastern Poland. 575 related FT8 messages, 256 CQ messages, observed on 160m, 80m, 40m, 10m, across 24 UTC dates. Heard between 2026-05-26 and 2026-08-22.

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

575

Related messages

256

CQ messages

UTC dates heard

-7 dB

Mean decoder S/N

Bands

80m 40m 10m 160m

First seen: 2026-05-26
Last seen: 2026-08-22 15:13 UTC

Frequent QSO partners observed at SO8OO

Stations DO1SJF worked most often, as logged from our receiver:

CT7AUT · Portugal ×3 DD0AM · Fed. Rep. of Germany ×3 F1PBZ · France ×2 DO9JTR · Fed. Rep. of Germany ×2 ON6CQ · Belgium ×2 HG8LXL · Hungary ×2 DL1UDO · Fed. Rep. of Germany ×2 D2UY · Angola ×2 OK1KM · Czech Republic ×2 R7CD · European Russia ×2 DL2RN · Fed. Rep. of Germany ×2 IK2HNG · Italy

Activity Heatmap

Locator transmitted by DO1SJF

Approximate centre of JN48, decoded 2026-08-22 17:13 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	DO1SJF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 17:07	80m	-11 / -2	DO7RMA	-12 / -7	4	✓ Full exchange observed
08-22 17:04	80m	- / -	HA1DSL	-14 / -	4	Partial capture
08-22 11:40	10m	-20 / -	SV2TCC	- / -22	4	Partial capture
08-22 11:38	10m	-23 / -	PD0LBY	- / -13	2	Partial capture
08-22 11:33	10m	-20 / -	SV1CQN	- / -6	2	✓ Closing fragment
08-22 11:23	10m	-18 / +9	PE9JAN	-17 / -14	7	✓ Full exchange observed
08-22 10:28	10m	- / +3	M0BEW	-14 / -	2	✓ Closing fragment
08-18 19:19	80m	+3 / 0	<...>	-8 / -	7	Partial capture
08-18 19:13	80m	-4 / +1	DH1JAD	-9 / +4	3	✓ Full exchange observed
08-18 19:05	80m	-2 / -	R2AX	- / -	2	Partial capture
08-18 18:59	80m	-3 / -	EB5RCA	- / -	12	Partial capture
08-18 11:29	10m	- / -	DK7UY	-7 / -	2	Partial capture
08-18 11:28	10m	- / -	OZ1SMB	-3 / -	2	✓ Closing fragment
08-15 22:30	80m	-11 / -	EW6CB	- / -1	4	✓ Closing fragment
08-15 22:27	80m	-15 / -	EA3FR	- / -20	6	✓ Closing fragment
08-15 22:25	80m	-16 / -	CT7AUT	- / -17	5	✓ Closing fragment
08-15 19:31	80m	-4 / -	LA2GCA	- / -	7	Partial capture
08-15 18:29	80m	-11 / -	RU3T	- / -	2	Partial capture
08-15 18:25	80m	-5 / -	R3BDQ	- / -	2	Partial capture
08-15 18:21	80m	-8 / -11	UA6ANQ	-3 / -13	9	✓ Full exchange observed
08-15 17:34	80m	-13 / -18	R7CD	+10 / -11	6	✓ Full exchange observed
08-15 14:36	10m	- / -14	SV5BYP	-18 / -	4	Partial capture
08-13 22:46	80m	+5 / -	9J2FI	- / -	8	Partial capture
08-13 22:42	80m	- / -	DL1EDR	-12 / -	3	Partial capture
08-13 22:05	80m	+9 / -	SP4NDY	+18 / +7	5	✓ Full exchange observed
08-13 21:30	80m	- / -	SP3BZU	+16 / -	3	Partial capture
08-13 21:28	80m	+5 / -12	TN8GD	-10 / -23	11	✓ Full exchange observed
08-13 21:25	80m	+4 / 0	DA6IT	+13 / -	5	✓ Full exchange observed
08-13 21:02	80m	+16 / -	DK0KG	+6 / -	5	✓ Full exchange observed
08-13 21:02	80m	+8 / -1	UR4LG	+2 / -19	6	✓ Full exchange observed
08-13 21:01	80m	+12 / -	EA5HM	- / -3	2	✓ Closing fragment
08-13 20:58	80m	+6 / -	ON5ACO	- / -4	3	✓ Closing fragment
08-13 20:58	80m	+17 / -	DO9JTR	-24 / -8	2	✓ Closing observed
08-13 20:42	80m	+1 / -	9J2FI	- / -	5	Partial capture
08-13 20:35	80m	+2 / -	JA5MHD	- / -	8	Partial capture
08-13 20:34	80m	+8 / -	IK3VVC	- / -7	4	✓ Closing fragment
08-13 20:31	80m	+4 / -3	R2PT	0 / -17	6	✓ Full exchange observed
08-13 20:31	80m	+3 / -	OO0O	- / -25	2	✓ Closing fragment
08-13 20:15	80m	+10 / -	DK4REX	- / -	2	✓ Closing fragment
08-13 20:11	80m	- / -6	F5MYK	-10 / -	3	✓ Closing fragment
08-13 20:09	80m	+3 / -	ON6CQ	- / -4	2	✓ Closing fragment
08-13 20:06	80m	0 / +2	DL2VN	-5 / -	3	✓ Closing observed
08-09 17:27	10m	- / -17	RN6MA	-12 / -	2	✓ Closing fragment
08-09 17:22	10m	- / -15	RN6MA	-10 / -	3	Partial capture
08-07 20:57	80m	+2 / -	TF4M	- / -10	2	Partial capture
08-07 20:52	80m	+2 / -	8S7DL	- / -	3	Partial capture
08-07 20:50	80m	+1 / -	OH3DJP	- / -	3	Partial capture
08-07 20:43	80m	+2 / -	8S7DL	- / -	7	Partial capture
08-07 20:25	160m	-22 / -	SV8JE	- / -6	2	✓ Closing fragment
08-07 20:20	160m	-16 / -	DK1RWR	- / -10	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
170515 -12 1540  CQ DO1SJF JN48
170530 -14 1539  DO1SJF HA1DSL JN86
170545 -12 1539  CQ DO1SJF JN48
170600 -14 1539  DO1SJF HA1DSL JN86
170615 -18 1540  CQ DO1SJF JN48
170745 -12 1599  DO1SJF DO7RMA -02
170800 -10 1540  DO7RMA DO1SJF R-07
170815 -12 1599  DO1SJF DO7RMA RR73
170830 -12 1540  DO7RMA DO1SJF 73
170900 -12 1540  DO1SJF HA1DSL JN86
170930 -15 1540  CQ DO1SJF JN48                        a1 (x5)

10m

UTC    dB Audio  Message
112345 -16 1737  DO1SJF PE9JAN JO22 (x3)
112500 -14 1727  PE9JAN DO1SJF -14
112515 -19 1737  DO1SJF PE9JAN R+09
112530 -23 1728  PE9JAN DO1SJF RR73
112545 -18 1737  DO1SJF PE9JAN 73
113345 -18 1671  SV1CQN DO1SJF R-06 (x2)
113815 -22 1673  PD0LBY DO1SJF -13 (x2)
114045 -21 1674  SV2TCC DO1SJF JN48 (x4)

160m

UTC    dB Audio  Message
221930 -19 1558  G3RPF DO1SJF JN48
195915 -10 1592  DO1SJF SQ9PBV JN99 (x4)
200730 -24 1839  IU5TUD DO1SJF R-18
201315 -24 1839  G8OO DO1SJF R-16
201745 -17 1839  CQ DO1SJF JN48 (x4)
202045 -19 1839  DK1RWR DO1SJF -10 (x2)
202545 -23 1839  SV8JE DO1SJF R-06 (x2)

40m

UTC    dB Audio  Message
174915 -24 1895  DO1SJF IU4PSX JN54 (x2)

Decoder S/N history by band

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