DF4FS — 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 DF4FS, decoded by SO8OO in southeastern Poland. 208 related FT8 messages, 21 CQ messages, observed on 60m, 40m, 20m, across 6 UTC dates. Heard between 2026-08-16 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

208

Related messages

CQ messages

UTC dates heard

-5 dB

Mean decoder S/N

Bands

20m 60m 40m

First seen: 2026-08-16
Last seen: 2026-08-23 22:16 UTC

Frequent QSO partners observed at SO8OO

Stations DF4FS worked most often, as logged from our receiver:

DK7ZT · Fed. Rep. of Germany ×2 DL5DQZ · Fed. Rep. of Germany ×2 HA5AZD · Hungary ×2 DL6UM · Fed. Rep. of Germany EA2BUW · Spain DD6ZV · Fed. Rep. of Germany DK7UY · Fed. Rep. of Germany HA7TM · Hungary DL7ACA · Fed. Rep. of Germany F5RRS · France RD1A · European Russia IZ0MIT · Italy

Activity Heatmap

Locator transmitted by DF4FS

Approximate centre of JN48, decoded 2026-08-24 00:16 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	DF4FS S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 23:55	60m	- / -11	ON7KEI	-11 / -	3	✓ Closing fragment
08-23 23:37	60m	-18 / -	OS4K	-21 / -19	4	✓ Closing observed
08-23 22:57	60m	-17 / +3	DF3JO	-9 / -2	5	✓ Full exchange observed
08-23 22:41	60m	-20 / -	VE1YX	- / -20	4	Partial capture
08-23 22:36	60m	-22 / +1	PA3FR	0 / -	4	✓ Closing observed
08-23 22:25	60m	-18 / -5	LA1HU	-2 / -16	4	✓ Full exchange observed
08-23 22:20	60m	- / 0	DL7ARV	+6 / -	3	✓ Closing fragment
08-23 22:20	60m	- / -10	G0AZH	-7 / -	2	✓ Closing fragment
08-23 22:12	60m	-17 / 0	LB9ZG	-12 / -	7	✓ Closing observed
08-23 20:02	60m	- / -8	PA4A	-7 / -	2	✓ Closing fragment
08-23 19:59	60m	- / -10	SM7WNM	-16 / -	2	✓ Closing fragment
08-23 19:52	60m	- / -7	DL5DQZ	0 / -	6	✓ Closing fragment
08-23 19:50	60m	- / -7	DK7UY	+7 / -	6	✓ Closing fragment
08-23 19:43	60m	- / -8	DD6ZV	-1 / -	3	✓ Closing fragment
08-23 19:34	60m	- / -6	HA5AZD	-6 / -	2	✓ Closing fragment
08-23 18:57	60m	- / -16	OZ1BJM	-20 / -	2	✓ Closing fragment
08-23 18:52	60m	- / -19	F5OZC	-11 / -	3	✓ Closing fragment
08-23 18:50	60m	- / -15	OM5JG	-6 / -	2	✓ Closing fragment
08-23 18:47	60m	-20 / -15	EA2BUW	-8 / -11	4	✓ Full exchange observed
08-23 18:43	60m	- / -8	HA5AZD	-6 / -	2	✓ Closing fragment
08-23 18:41	60m	- / -10	DK2CC	-18 / -	2	Partial capture
08-23 18:39	60m	- / -10	OM7FS	+2 / -	3	✓ Closing fragment
08-23 18:37	60m	- / -6	IZ0MIT	-6 / -	3	✓ Closing fragment
08-23 18:34	60m	- / -3	DK1XAM	-2 / -	4	✓ Closing fragment
08-23 18:31	60m	- / -2	DL1UDO	-5 / -	3	✓ Closing fragment
08-23 18:27	60m	- / +8	DK7ZT	-18 / -	3	✓ Closing fragment
08-23 18:26	60m	- / -17	HA7TM	+10 / -	3	✓ Closing fragment
08-23 12:54	20m	- / -	F6FDY	+3 / -	4	Partial capture
08-22 19:25	20m	- / -14	EA4D	-2 / -	3	✓ Closing fragment
08-22 19:06	20m	- / -18	UA6YW	+5 / -	3	✓ Closing fragment
08-21 21:12	20m	- / -19	DH1FA	+2 / -	2	Partial capture
08-21 21:00	20m	-18 / -	LA4NM	- / -11	3	✓ Closing fragment
08-21 20:50	20m	- / -	PH7GD	-4 / -	4	Partial capture
08-21 20:39	20m	-11 / -	VO1ACZ	- / -21	3	Partial capture
08-21 18:51	20m	- / -16	RA3AL	-14 / -	2	Partial capture
08-21 10:39	20m	- / -	E70SZ	+3 / -	5	Partial capture
08-21 10:39	20m	- / -	DL6ZOG	-6 / -	3	Partial capture
08-21 10:34	20m	- / -	9A4ZM	+9 / -	3	Partial capture
08-21 06:10	20m	- / -	4O4DB	+7 / -	3	Partial capture
08-21 05:46	20m	- / -8	RK4FF	+13 / -	3	✓ Closing fragment
08-20 20:49	40m	-10 / -	PY7XC	- / -	2	Partial capture
08-20 20:25	40m	-6 / -16	F5PBG	+5 / -	5	✓ Closing observed
08-20 20:20	40m	-8 / +8	DR800WE	+10 / -	2	Partial capture
08-20 19:57	40m	- / -	F5PBG	-2 / -	3	Partial capture
08-20 19:56	40m	- / -9	DK3ME	0 / -	3	Partial capture
08-20 19:53	40m	-19 / -10	DL7ACA	+5 / -	6	✓ Closing observed
08-20 19:52	40m	- / -	F5PBG	-6 / -	2	Partial capture
08-20 19:49	40m	- / -17	OK1DLA	+4 / -	8	✓ Closing fragment
08-20 19:49	40m	- / -11	PH9OY	-8 / -	3	Partial capture
08-20 19:46	40m	-20 / +4	DL1EDR	+1 / 0	6	Partial capture

Recent FT8 messages decoded at SO8OO

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

60m

UTC    dB Audio  Message
232315 -17 1361  CQ DF4FS JN48 (x6)
233700 -22 1360  OS4K DF4FS JN48 (x2)
233745 -21 1577  DF4FS OS4K RR73
233800 -16 1360  OS4K DF4FS 73
235545  -8 1432  DF4FS ON7KEI JO21 (x3)
001530 -17 1361  CQ DF4FS JN48 (x2)

20m

UTC    dB Audio  Message
190730  +3  865  DF4FS UA6YW 73
192545  -4 1653  DF4FS EA4D -14 (x3)
221415 -16  804  4L7T DF4FS JN48
222745 -15  804  R2FAQ DF4FS JN48
223445 -14  803  K3ZK DF4FS JN48
224500 -13 1380  TA7ARH DF4FS JN48
231230 -15 1202  W3RFK DF4FS JN48
232000 -14 1202  EC3A DF4FS JN48
121115 -12 1227  CQ DF4FS JN48
125415  +3 3056  DF4FS F6FDY JN33 (x4)

40m

UTC    dB Audio  Message
195645  +0 1223  DF4FS DK3ME R-09 (x2)
195745  -3 1271  DF4FS F5PBG IN78 (x3)
200530 -14  229  4X1UF DF4FS JN48
202045  -8  427  DR800WE DF4FS JN48
202200 +10  427  DF4FS DR800WE +08
202500  +4  477  DF4FS F5PBG IN78 (x3)
202615  -6  427  F5PBG DF4FS RR73
202630  +3  477  DF4FS F5PBG 73
204915  -9  637  PY7XC DF4FS JN48 (x2)

Decoder S/N history by band

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