UB3FDA — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO85

Receiver-side FT8 activity involving UB3FDA, decoded by SO8OO in southeastern Poland. 526 related FT8 messages, 85 CQ messages, observed on 80m, 40m, 20m, across 31 UTC dates. Heard between 2026-05-20 and 2026-08-18.

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

526

Related messages

CQ messages

UTC dates heard

-9 dB

Mean decoder S/N

Bands

80m 40m 20m

First seen: 2026-05-20
Last seen: 2026-08-18 16:56 UTC

Frequent QSO partners observed at SO8OO

Stations UB3FDA worked most often, as logged from our receiver:

SV1EKI · Greece ×2 R3LCW · European Russia ×2 UI5A · European Russia ×2 RV2H · European Russia UA9QFF · Asiatic Russia R2HB · European Russia LA1XFA · Norway YT7DX · Serbia RA3TOS · European Russia R2EA/P · European Russia R6DJR · European Russia ZL1GT · New Zealand

Activity Heatmap

Locator transmitted by UB3FDA

Approximate centre of KO85, decoded 2026-07-24 15:37 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	UB3FDA S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-18 18:53	40m	- / 0	RU6K	-16 / -	4	✓ Closing fragment
08-18 18:15	40m	- / -9	R2HB	-14 / -	2	✓ Closing fragment
08-18 17:55	80m	- / -9	RZ6ALZ	-10 / -	2	✓ Closing fragment
08-18 17:54	80m	-10 / -	RQ3D	- / 0	2	Partial capture
08-18 17:50	80m	-4 / -8	RN6AK	-1 / -1	6	✓ Closing observed
08-18 17:48	80m	-8 / -16	R8LCI	-24 / -5	8	✓ Full exchange observed
08-10 11:27	20m	- / -7	IK4LZH	+6 / -	4	✓ Closing fragment
07-28 08:49	20m	- / +1	UA6HGM	-14 / -	2	Partial capture
07-27 20:00	40m	-21 / -	EW8DG	- / -2	2	✓ Closing fragment
07-27 19:57	40m	-22 / -	R1BRT	- / -8	2	✓ Closing fragment
07-27 19:53	40m	-21 / -	RU6FK	- / -2	2	✓ Closing fragment
07-27 19:16	40m	-20 / -	RA7Z	- / -19	3	Partial capture
07-27 19:13	40m	-19 / +1	R5AV	-10 / +1	4	✓ Full exchange observed
07-27 19:11	40m	- / -14	R2EA/P	-16 / -	2	✓ Closing fragment
07-26 19:10	40m	-18 / -	R2AL	-2 / -	4	✓ Closing observed
07-26 18:58	40m	- / -18	DL2RPN	-1 / -	4	✓ Closing fragment
07-26 18:53	40m	- / 0	UA3SCU	-8 / -	3	✓ Closing fragment
07-26 18:52	40m	- / -14	RD5Q	-6 / -	2	✓ Closing fragment
07-26 18:43	80m	- / +2	RA3ZOM	+5 / -	2	✓ Closing fragment
07-26 18:42	80m	-4 / -3	RG7O	+2 / -4	3	Partial capture
07-26 18:32	80m	-16 / -	R2AKN	-8 / +4	4	✓ Full exchange observed
07-26 18:31	80m	-18 / -	UA3PTK	-2 / +4	4	✓ Full exchange observed
07-26 18:27	80m	-11 / -15	RU9CK	-19 / -10	4	✓ Full exchange observed
07-26 18:18	40m	- / -10	UI5A	-17 / -	3	✓ Closing fragment
07-26 18:10	40m	- / -9	RA7M	-5 / -	3	✓ Closing fragment
07-26 18:07	40m	- / -15	R2FDU	-16 / -	2	✓ Closing fragment
07-26 17:57	40m	-21 / -	R5ACQ	-17 / -11	2	Partial capture
07-26 17:51	40m	-24 / -14	DL6UM	-8 / -	3	✓ Closing observed
07-26 17:50	40m	- / -	RY7G	-14 / -	2	✓ Closing fragment
07-26 17:32	40m	- / -	RA4Y	-20 / -	3	✓ Closing fragment
07-24 19:33	40m	-14 / -	UB8QBY	- / -13	2	✓ Closing fragment
07-24 19:29	40m	-16 / -	RX9WM	- / -8	2	✓ Closing fragment
07-24 18:33	20m	-12 / -	VE1JS	- / -20	2	Partial capture
07-24 18:32	20m	-10 / -10	EA8UP	-3 / -2	3	✓ Full exchange observed
07-23 17:13	20m	- / -10	GJ0KYZ	+12 / -	2	✓ Closing fragment
07-22 17:36	40m	- / -9	RT6DU	-9 / -	4	Partial capture
07-22 14:15	20m	- / -	RA4HG	-7 / -	5	Partial capture
07-21 18:30	40m	-15 / -	UB0SMX/P	- / -16	2	✓ Closing fragment
07-21 18:21	20m	-15 / -	PD9JPV	- / -16	3	Partial capture
07-21 18:12	20m	- / -16	IU5HIU	-9 / -	3	✓ Closing fragment
07-21 12:44	20m	- / -3	F1PBZ	-3 / -	2	Partial capture
07-20 17:45	40m	-12 / 0	R6DVV	-22 / -	4	✓ Closing observed
07-20 17:44	40m	-14 / -4	YR50NADIA	+2 / -14	4	Partial capture
07-20 17:42	40m	- / -1	RO2T	-2 / -	2	✓ Closing fragment
07-20 08:11	20m	- / -7	G8OO	-8 / -	4	✓ Closing fragment
07-15 19:10	40m	- / -	YO9PH	-10 / -	2	✓ Closing fragment
07-15 19:02	40m	- / -2	UF1A	-14 / -	2	✓ Closing fragment
07-13 18:50	40m	-16 / -	UA4LDP	- / -11	2	✓ Closing fragment
07-13 18:48	40m	-10 / -8	RQ2Q	-10 / -	4	✓ Closing observed
07-13 18:44	40m	-12 / -2	R2RDA	-20 / -7	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
180230 -15  915  F1IQH UB3FDA RR73
180700 -19 1554  UB3FDA UA3POG KO83
181500 -13 1151  UB3FDA R2HB R-09 (x2)
183730 -20 1187  UB3FDA R7IA R-11
183830 -16 1436  UB3FDA SN1A JO73
184500 -12  914  UB3FDA LX1JH R-13
185145 -14 1141  UB3FDA PA3AGN JO22
185145 -16 1754  UB3FDA DL3HWD JO51
185345 -18 1226  UB3FDA RU6K +11 (x4)
190500 -12  916  R6OCU UB3FDA -05
191000 -10  916  <...> UB3FDA -14

80m

UTC    dB Audio  Message
175000  -7  879  R8LCI UB3FDA -04
175015 -24 1607  UB3FDA R8LCI R-16
175030  -4  879  R8LCI UB3FDA RR73
175045 -24 1606  UB3FDA R8LCI R-16
175045  -3  879  UB3FDA RN6AK KN95
175100  -5  879  R8LCI UB3FDA RR73
175115  +3  879  UB3FDA RN6AK KN95
175130  -5  878  RN6AK UB3FDA -01
175145  -2  879  UB3FDA RN6AK -08
175200  -4  879  RN6AK UB3FDA RR73
175215  -3  879  UB3FDA RN6AK RR73
175400 -14  879  RQ3D UB3FDA +00 (x2)
175530  -8 1905  UB3FDA RZ6ALZ R-09 (x2)

20m

UTC    dB Audio  Message
153730 -18 2209  UB3FDA RT1I 73
153745 -16 2427  CQ UB3FDA KO85
153900 -18 2035  UB3FDA PD1ADA JO21
154230  -8 2846  UB3FDA DL6AND JN69
183215 -10 2427  EA8UP UB3FDA -02
183230  -3 1764  UB3FDA EA8UP R-10 (x2)
183345 -11 2427  VE1JS UB3FDA -20 (x2)
084915 -13 1332  UB3FDA UA6HGM LN14 (x2)
112715  +8  462  UB3FDA IK4LZH JN54 (x4)

Decoder S/N history by band

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