UB3LBU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Locator transmitted in a decoded message: KO63

Receiver-side FT8 activity involving UB3LBU, decoded by SO8OO in southeastern Poland. 1,198 related FT8 messages, 287 CQ messages, observed on 160m, 80m, 40m, 20m, 10m, across 38 UTC dates. Heard between 2026-05-23 and 2026-08-21.

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

1,198

Related messages

287

CQ messages

UTC dates heard

-7 dB

Mean decoder S/N

Bands

80m 20m 40m 10m 160m

First seen: 2026-05-23
Last seen: 2026-08-21 17:33 UTC

Frequent QSO partners observed at SO8OO

Stations UB3LBU worked most often, as logged from our receiver:

LZ1ZF · Bulgaria ×6 UA3PTK · European Russia ×6 UF1A · European Russia ×6 RA3RPW · European Russia ×5 R2AKN · European Russia ×5 RA2FU · Kaliningrad ×5 RC6OD · European Russia ×4 UA4AOC · European Russia ×4 S58MU · Slovenia ×4 RL2F · Kaliningrad ×4 RA3VX · European Russia ×3 RT2P · European Russia ×3

Activity Heatmap

Locator transmitted by UB3LBU

Approximate centre of KO63, decoded 2026-08-21 19:44 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	UB3LBU S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-21 19:43	80m	-8 / -	RA2FU	- / -	3	Partial capture
08-21 19:31	160m	- / -15	UD8S	-18 / -	4	Partial capture
08-21 19:22	160m	- / -	UA3LKM	-19 / -	4	Partial capture
08-21 19:21	160m	- / -18	UD8S	-22 / -	2	Partial capture
08-21 19:17	160m	-8 / -10	R1MA	-17 / -	4	✓ Closing observed
08-21 19:16	160m	-11 / -6	R2EC	-7 / -8	5	✓ Full exchange observed
08-21 19:15	160m	- / -	R3ICU	-18 / -	2	Partial capture
08-21 19:13	160m	-12 / -10	UA3PTK	-12 / -10	6	✓ Full exchange observed
08-21 19:04	40m	- / -10	EW4DX	0 / -	2	Partial capture
08-21 19:02	40m	- / +8	R1CBW	-13 / -	2	✓ Closing fragment
08-21 18:59	40m	+5 / +9	UF1A	-3 / -	3	✓ Closing observed
08-21 18:52	40m	-1 / -	R3KMI	-11 / -	2	✓ Closing observed
08-21 15:57	40m	-7 / -	UB6LLI	- / -	3	✓ Closing fragment
08-21 15:50	40m	-5 / -	RG4H	- / -7	3	✓ Closing fragment
08-21 15:44	40m	-3 / -3	RW6AU	-20 / -4	4	✓ Full exchange observed
08-21 15:43	40m	-4 / -	UN7PTN	- / -15	2	Partial capture
08-21 15:40	40m	0 / -	RA1TR	-21 / -7	3	✓ Closing observed
08-21 15:39	40m	-3 / -	RA4UIV	- / -6	2	✓ Closing fragment
08-21 15:36	40m	-8 / -4	RA3SO	-14 / -2	5	✓ Full exchange observed
08-21 15:35	40m	-4 / -	RG8U	- / -	2	Partial capture
08-21 06:12	20m	-24 / -	UA6EED	+10 / -10	3	✓ Closing observed
08-21 06:07	20m	-7 / -9	UA6EED	+23 / -	3	Partial capture
08-20 19:47	40m	+7 / -	R7RCG	- / -	3	Partial capture
08-20 19:44	40m	- / -	OO0O	-9 / -	12	Partial capture
08-20 19:41	40m	0 / -	R3TJN	- / -10	4	✓ Closing fragment
08-20 19:40	40m	-1 / -	GM0SDV	- / -12	3	Partial capture
08-20 19:37	40m	-4 / -10	DL1EDR	-1 / -9	6	✓ Full exchange observed
08-20 19:18	80m	-7 / -	S58MU	+13 / -15	5	✓ Closing observed
08-20 19:14	80m	-7 / -4	RA3LCI	-14 / -	3	✓ Closing observed
08-20 19:13	80m	-1 / -9	R3QS	+8 / -	2	✓ Closing observed
08-20 19:12	80m	-3 / -9	R3LBK	+2 / +1	5	✓ Full exchange observed
08-20 18:56	40m	-2 / -	UG5F	- / -8	4	Partial capture
08-20 18:54	40m	-5 / +10	RG6ZF	-12 / -3	4	✓ Full exchange observed
08-20 18:50	40m	+1 / -	R4FV	- / -3	4	✓ Closing fragment
08-20 18:42	40m	+4 / -	RX7KIR	- / -	3	Partial capture
08-20 18:40	40m	0 / -	R3BIS	-13 / -6	4	✓ Closing observed
08-20 18:32	80m	-10 / -	RA3VX	- / -2	4	✓ Closing fragment
08-20 18:30	80m	-10 / -7	R1ZH	-14 / -6	5	✓ Full exchange observed
08-20 18:25	80m	- / 0	R2SN	-1 / -	2	✓ Closing fragment
08-20 18:21	80m	-6 / 0	R3ZMM	+1 / +1	5	✓ Full exchange observed
08-20 18:18	80m	- / -	R2PX	-5 / -	2	✓ Closing fragment
08-20 18:17	80m	-6 / -15	R5VCR	-13 / -7	7	✓ Full exchange observed
08-20 18:06	40m	- / -8	R3YAR	+7 / -	2	✓ Closing fragment
08-20 18:02	40m	+1 / -8	R6ZCE	-10 / -3	5	✓ Full exchange observed
08-20 17:59	40m	-3 / -	R1IV	- / -5	3	Partial capture
08-20 17:54	40m	-4 / -	US1EA	- / -6	2	Partial capture
08-20 17:36	40m	-1 / -4	R6LFO	+2 / -	3	✓ Closing observed
08-20 17:35	40m	-4 / -7	RA6FSV	-12 / -	5	✓ Closing observed
08-20 17:28	40m	-5 / -	F4LVF	-7 / -11	2	Partial capture
08-20 17:27	40m	-2 / -3	R4UR	-6 / -	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
191300  -1 1496  R3LBK UB3LBU 73
191315  +8  894  UB3LBU R3QS -09
191400  -1 1496  R3QS UB3LBU 73
191415 -15 1497  UB3LBU RA3LCI -04 (x2)
191500  -7 1496  RA3LCI UB3LBU 73
191830  -7 1496  S58MU UB3LBU KO63 (x2)
191915 +13  628  UB3LBU S58MU RR73
191930  -6 1496  S58MU UB3LBU 73 (x2)
195500 -17 1497  R6ODC UB3LBU KO63
194300  -4 1498  RA2FU UB3LBU KO63 (x3)

160m

UTC    dB Audio  Message
192415 -13 1494  CQ PW UB3LBU KO63 (x2)
192445 -15 1683  UB3LBU UA3LKM KO65
192730  -7 1494  CQ PW UB3LBU KO63 (x8)
193145 -16 1631  UB3LBU UD8S -15 (x4)

40m

UTC    dB Audio  Message
155545  -5 1523  CQ PW UB3LBU KO63 (x2)
155715  -6 1523  UB6LLI UB3LBU RR73 (x3)
185200 -11 1851  UB3LBU R3KMI RR73
185215  -1 1525  R3KMI UB3LBU 73
185915  +5 1525  UF1A UB3LBU KO63
190030  -2  681  UB3LBU UF1A +09 (x2)
190230 -12 2618  UB3LBU R1CBW +08 (x2)
190430  +4  537  UB3LBU EW4DX KO23 (x2)
190830  -3 1526  R3TKN UB3LBU KO63

20m

UTC    dB Audio  Message
135315 -17 1406  UB3LBU R1641AZ -03
135630  -2  565  UB3LBU R6YG RR73
091630 -21 1548  CQ PW UB3LBU KO63 (x2)
092200 -20 2359  UB3LBU UA1AQC -15
092545 -23 1548  CQ PW UB3LBU KO63
092700 -10 1549  UB3LBU DK3HV JO31
055430 -15 1238  UB3LBU RA6FSV LN05
060745  -7 1563  UA6EED UB3LBU KO63
060800 +24 2740  UB3LBU UA6EED -09 (x2)
061215 -24 1560  UA6EED UB3LBU R-10
061230 +10 2740  UB3LBU UA6EED RR73
061245 -24 1560  UA6EED UB3LBU 73
094915 -24 1546  UB1N UB3LBU KO63

10m

UTC    dB Audio  Message
195300 -22 1534  UB3LBU DL3NGN JN59
085245 -12  680  UB3LBU SV2CLJ KN10
065445 -21 1797  UB3LBU UD8S -12
065615 -12  821  UB3LBU UA9MA +08
065700 -21 1536  UA9MA UB3LBU 73
065800 -17 1534  UA9FKM UB3LBU 73
065945 -23 1531  RA9LL UB3LBU R-19
070600 -11 2522  UB3LBU RC7C RR73
101145 -11 1421  UB3LBU PA3GAE JO21 (x4)
090315  -4 2805  UB3LBU R7RAG RR73
091715 -14 1538  UB3LBU S56A R-03 (x2)

Decoder S/N history by band

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