W4SMF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Locator transmitted in a decoded message: FM04

Receiver-side FT8 activity involving W4SMF, decoded by SO8OO in southeastern Poland. 99 related FT8 messages, observed on 20m, across 16 UTC dates. Heard between 2026-06-01 and 2026-08-20.

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

-8 dB

Mean decoder S/N

Bands

20m

First seen: 2026-06-01
Last seen: 2026-08-20 20:05 UTC

Frequent QSO partners observed at SO8OO

Stations W4SMF worked most often, as logged from our receiver:

UT7UJ · Ukraine N1EZ · United States DL3EBJ · Fed. Rep. of Germany PT2GMA · Brazil HB9VAA · Switzerland R5DT · European Russia

Activity Heatmap

Locator transmitted by W4SMF

Approximate centre of FM04, decoded 2026-08-20 22:13 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	W4SMF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-20 22:13	20m	-13 / -	KX0D	- / -20	2	Partial capture
08-20 22:05	20m	- / -7	UT7UJ	+6 / -	2	✓ Closing fragment
08-07 20:17	20m	- / -17	DL3EBJ	-8 / -	2	✓ Closing fragment
08-06 19:36	20m	- / -	G5TV	-21 / -	4	Partial capture
08-06 19:34	20m	- / -	PD0RCQ	-13 / -	2	Partial capture
08-06 19:32	20m	- / -	G5TV	-18 / -	2	Partial capture
08-06 19:21	20m	- / -	G5TV	-22 / -	5	Partial capture
08-04 23:48	20m	- / -	IK4LZH	-5 / -	4	Partial capture
08-04 23:39	20m	- / -11	F1PBZ	-3 / -	2	Partial capture
08-04 23:34	20m	- / -	DF3VG	-6 / -	2	Partial capture
07-29 22:56	20m	- / -5	DF7BN	-18 / -	2	Partial capture
07-21 23:13	20m	- / -	CT1BFP	-15 / -	12	Partial capture
07-19 22:11	20m	- / -	M8KUG	-11 / -	3	Partial capture
07-06 22:16	20m	- / -	PT2GMA	-15 / -	2	✓ Closing fragment
06-26 23:14	20m	- / -	RX9ABI	-2 / -	2	Partial capture
06-23 21:47	20m	- / -	EA6ANX	-10 / -	2	Partial capture
06-18 22:35	20m	- / -	EA5HM	-14 / -	3	Partial capture
06-18 20:55	20m	- / -17	IQ9BF	-2 / -	2	Partial capture
06-13 22:06	20m	- / -	IW9FRA	+5 / -	5	Partial capture
06-13 22:05	20m	- / 0	HB9VAA	-13 / -	3	✓ Closing fragment
06-13 22:02	20m	- / -	SV4LGX	-2 / -	2	Partial capture
06-13 21:26	20m	- / -	F5NHG	-6 / -	2	Partial capture
06-13 21:24	20m	- / -13	IZ0GRR	-14 / -	2	Partial capture
06-12 21:13	20m	- / -6	MM3WYM	-2 / -	2	Partial capture
06-12 20:58	20m	- / -21	DL1RBR	+6 / -	14	Partial capture
06-12 20:41	20m	- / -	G5TV	-6 / -	2	Partial capture
06-01 19:35	20m	- / -13	R5DT	-6 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
193415 -11  717  W4SMF PD0RCQ JO21 (x2)
193645 -20 1640  W4SMF G5TV IO93 (x4)
201730  -8  972  W4SMF DL3EBJ -17 (x2)
202400  -8  716  W4SMF F1PPH JN25
220500 +10  717  W4SMF UT7UJ -07 (x2)
220845 -10  718  KJ5IPM W4SMF FM04
221145 -13  718  SP9FOW W4SMF FM04
221345 -12  717  KX0D W4SMF FM04 (x2)

Decoder S/N history by band

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