RA2FU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Kaliningrad Locator transmitted in a decoded message: KO04

Receiver-side FT8 activity involving RA2FU, decoded by SO8OO in southeastern Poland. 3,692 related FT8 messages, 1,612 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 74 UTC dates. Heard between 2026-05-25 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

3,692

Related messages

1,612

CQ messages

UTC dates heard

-5 dB

Mean decoder S/N

Bands

80m 20m 40m 60m 10m

First seen: 2026-05-25
Last seen: 2026-08-23 17:53 UTC

Frequent QSO partners observed at SO8OO

Stations RA2FU worked most often, as logged from our receiver:

UB3LBU · European Russia ×5 RC6OD · European Russia ×4 R2SN · European Russia ×4 RD7O · European Russia ×4 RA6OD · European Russia ×4 RN6MA · European Russia ×3 OK2WMC · Czech Republic ×3 R3WA · European Russia ×3 DK4CH · Fed. Rep. of Germany ×3 SP3BVI · Poland ×3 RU1AB · European Russia ×3 RV3X · European Russia ×3

Activity Heatmap

Locator transmitted by RA2FU

Approximate centre of KO04, decoded 2026-08-23 19:50 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	RA2FU S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 19:50	80m	- / -	OH1ZE	+1 / -	8	Partial capture
08-23 19:47	80m	-4 / -	R1BQC	- / -15	2	✓ Closing fragment
08-23 19:45	80m	-5 / -15	E75C	+2 / -6	6	✓ Full exchange observed
08-23 19:41	80m	-10 / -14	UA3QQG	-14 / -11	4	Partial capture
08-23 19:39	80m	-10 / -4	SM5IZS	+3 / +8	5	✓ Full exchange observed
08-23 19:37	80m	-8 / -	DO1UGS	-4 / -18	5	✓ Closing observed
08-23 19:37	80m	-4 / +4	SP2SCB	-8 / -6	4	✓ Full exchange observed
08-23 19:34	80m	-2 / -	DO4HHK	- / -11	3	Partial capture
08-23 19:30	80m	-2 / -8	DC2SK	-4 / -8	8	✓ Full exchange observed
08-23 19:19	80m	-2 / 0	DO4TYW	-7 / -7	7	✓ Full exchange observed
08-23 19:17	80m	+1 / +2	<...>	+10 / -6	3	Partial capture
08-23 19:10	80m	+1 / -	UA3NCN	- / -15	12	Partial capture
08-23 19:06	80m	-5 / -	DL1BEC	- / -	3	✓ Closing fragment
08-23 19:03	80m	-4 / -	DO1OSW	-9 / -10	2	Partial capture
08-23 19:00	80m	+5 / -7	SP1BMK	+8 / -3	3	✓ Full exchange observed
08-23 18:58	80m	+2 / +5	SP3BVI	-4 / +3	5	✓ Full exchange observed
08-23 18:51	80m	- / +5	SP5BK	+9 / -	3	✓ Closing fragment
08-23 13:51	20m	- / -9	F4AWT	+1 / -	3	✓ Closing fragment
08-23 13:43	20m	- / -11	RC6OD	-7 / -	10	Partial capture
08-23 13:24	20m	- / -25	IU4PPL	-5 / -	3	✓ Closing fragment
08-23 13:22	20m	- / -	F4AWT	+4 / -	2	Partial capture
08-22 20:20	80m	-4 / -6	SP6TID	-8 / -7	6	✓ Full exchange observed
08-22 20:18	80m	0 / -4	DM4MB	-8 / -16	5	✓ Full exchange observed
08-22 20:12	80m	+5 / -	<...>	- / -11	5	Partial capture
08-22 20:08	80m	-3 / -	DF3YG	- / -8	5	Partial capture
08-22 20:06	80m	-4 / -	DA6CGN	- / -22	3	Partial capture
08-22 20:01	80m	-3 / -18	SP9KM	-6 / -20	9	✓ Full exchange observed
08-22 19:54	80m	-6 / -1	SQ5EKY	+10 / -1	6	✓ Full exchange observed
08-22 19:50	80m	-5 / -	SM7HWD	- / -9	3	✓ Closing fragment
08-22 19:50	80m	-2 / -	RV6LVO	-21 / -13	3	Partial capture
08-22 19:07	80m	-1 / -	DO5UH	+2 / -16	8	✓ Closing observed
08-22 18:58	80m	+2 / -11	R3WBG	-5 / -	4	✓ Closing observed
08-22 18:54	80m	0 / -	<...>	- / +7	3	Partial capture
08-22 18:48	80m	-5 / -	R1BED	- / -4	4	Partial capture
08-22 18:45	80m	-8 / -10	RV3F	-2 / +3	5	✓ Full exchange observed
08-22 12:19	20m	- / -	DL1R	+7 / -	8	Partial capture
08-21 20:06	80m	-11 / -4	SN4K	+1 / -	8	✓ Full exchange observed
08-21 20:03	80m	-7 / -	RA6FYL	- / -18	2	Partial capture
08-21 20:01	80m	-10 / -	UA3IDQ	- / -	2	✓ Closing fragment
08-21 19:57	80m	-7 / -13	UA1OJL	-14 / -11	5	✓ Full exchange observed
08-21 19:54	80m	-8 / +8	G0MSE	-23 / -22	5	✓ Full exchange observed
08-21 19:48	80m	-6 / -	HB3YBG	- / -15	4	✓ Closing fragment
08-21 19:45	80m	-10 / -12	OH4JFN	-3 / -2	3	✓ Full exchange observed
08-21 19:45	80m	-10 / +5	OH2CI	-4 / +3	9	✓ Full exchange observed
08-21 19:43	80m	- / -	UB3LBU	-8 / -	3	Partial capture
08-21 19:40	80m	-7 / -	G4VJL	-14 / -	2	✓ Closing observed
08-21 19:28	80m	- / -5	SP2BBQ	+11 / -	3	✓ Closing fragment
08-21 19:26	80m	-6 / -8	RA1TR	0 / +3	3	✓ Full exchange observed
08-21 19:22	80m	-2 / -14	RA6OD	+1 / -3	5	✓ Full exchange observed
08-21 19:20	80m	-6 / -	RA9FDR	-18 / -19	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
194800  -3 2049  R1BQC RA2FU 73
194830  -5 2049  CQ RA2FU KO04 (x4)
195015  -3 2691  RA2FU OH1ZE KP10
195030  +1 2049  CQ RA2FU KO04
195045  -2 2691  RA2FU OH1ZE KP10
195115 -12  567  RA2FU DO1UGS JO71
195115  +1 2691  RA2FU OH1ZE KP10 (x6)

20m

UTC    dB Audio  Message
132515  -6 2336  RA2FU IU4PPL R-25 (x2)
134345  -8  725  RA2FU RC6OD R-11 (x10)
135145  +0 2468  RA2FU F4AWT JN24 (x3)

60m

UTC    dB Audio  Message
063615 -21 1813  RA2FU DL5YEE JO42 (x3)

10m

UTC    dB Audio  Message
100545  -5 2952  RA2FU DO1FDK JO41
100715 -16 2526  RA2FU DM5MA JO52
100745  -3 2952  RA2FU DO1FDK JO41
101245 -16 1000  RA2FU RA6ZD KN98 (x2)
101445  -4 2952  RA2FU DO1FDK JO41
103045  -4 1351  RA2FU RN6MA -16 (x2)
103445 -23 1342  RA2FU DO4YNH JO41
103845 -14  835  RA2FU PE9JAN R-12
103845  -3 2559  RA2FU RA6MQ -15 (x4)
104245 -17 1123  RA2FU DF1AG R-11

40m

UTC    dB Audio  Message
191215  +4  906  RA2FU YO2UKG KN05 (x5)
191745 -12 2530  RA2FU DL3YA JN48
192045 -14  878  RA2FU R3YBG KO73 (x2)
192945 -24 1778  RA2FU M0PEL JO01 (x2)
053530 -18 1013  RA2FU EW2ZC R-02
184845 -14 2253  RA2FU DH1JB JO53 (x4)

Decoder S/N history by band

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