YL3CU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Latvia Locator transmitted in a decoded message: KO06

Receiver-side FT8 activity involving YL3CU, decoded by SO8OO in southeastern Poland. 584 related FT8 messages, 190 CQ messages, observed on 80m, 40m, 20m, 10m, across 44 UTC dates. Heard between 2026-05-26 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

584

Related messages

190

CQ messages

UTC dates heard

-6 dB

Mean decoder S/N

Bands

80m 40m 20m 10m

First seen: 2026-05-26
Last seen: 2026-08-23 17:48 UTC

Frequent QSO partners observed at SO8OO

Stations YL3CU worked most often, as logged from our receiver:

F1PBZ · France ×3 IK4LZH · Italy ×3 F1IQH · France ×3 SP9D · Poland ×3 UG4P · European Russia ×2 TN8GD · Republic of the Congo ×2 RI0SP · European Russia ×2 SP5DFK · Poland ×2 SP1EG · Poland ×2 DL1IP · Fed. Rep. of Germany ×2 NT1K · United States N4LR · United States

Activity Heatmap

Locator transmitted by YL3CU

Approximate centre of KO06, decoded 2026-08-23 19:45 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	YL3CU S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-23 19:46	40m	+8 / 0	GM5DNA	0 / -4	6	✓ Full exchange observed
08-23 19:46	40m	+6 / 0	9A3AUH	-1 / 0	4	Partial capture
08-23 19:45	40m	+5 / +4	RY3F	+6 / -3	4	✓ Full exchange observed
08-22 13:12	10m	- / +6	F1PBZ	-6 / -	4	✓ Closing fragment
08-20 18:42	40m	+11 / -	PD3LWD	-10 / -11	4	✓ Closing observed
08-20 18:41	40m	+10 / -14	EA1VJ	-17 / -17	3	✓ Full exchange observed
08-20 18:40	40m	+10 / +7	DL1EDR	+7 / -2	5	✓ Full exchange observed
08-20 18:38	40m	+11 / -	BG5FRH	- / -16	2	✓ Closing fragment
08-20 18:36	40m	+10 / +2	5Q1T	-11 / -5	5	✓ Full exchange observed
08-20 18:35	40m	+9 / -	2E0MRK	- / -7	2	✓ Closing fragment
08-20 18:31	40m	+8 / -3	F1IQH	-4 / -11	6	✓ Full exchange observed
08-20 18:30	40m	+13 / -	BG2GWN	- / -14	2	✓ Closing fragment
08-20 18:29	40m	+12 / -	JH1BBT	- / -15	2	✓ Closing fragment
08-20 18:24	40m	+10 / -	ZL1RPC/P	- / -19	2	✓ Closing fragment
08-20 18:22	40m	+8 / -	BA6IM	- / -18	2	Partial capture
08-20 18:21	40m	+8 / -	F5MJN	- / -10	2	✓ Closing fragment
08-20 18:19	40m	+10 / -	R1BRZ	- / -1	2	✓ Closing fragment
08-20 18:18	40m	+10 / -	BG5GFU	- / -17	2	✓ Closing fragment
08-20 18:14	40m	+2 / -	DB3MAX	-2 / -6	3	✓ Closing observed
08-20 18:12	40m	-10 / -7	R1IV	-6 / +2	4	✓ Full exchange observed
08-20 03:43	40m	- / +3	RK3AW	-10 / -	3	✓ Closing fragment
08-20 03:42	40m	- / -9	KC2YWE	-19 / -	2	✓ Closing fragment
08-16 05:16	40m	-8 / -	9A4BP/P	-18 / -11	6	✓ Full exchange observed
08-16 05:11	40m	-16 / -	DL7ARV	-4 / -2	5	✓ Full exchange observed
08-16 05:09	40m	-11 / -	HD5EC	- / -23	5	✓ Closing fragment
08-16 05:07	40m	-7 / -	TI4LAS	- / -15	4	✓ Closing fragment
08-11 18:25	20m	0 / -	IV3KFD	- / -11	2	✓ Closing fragment
08-11 18:25	20m	+2 / -	EA5HM	-18 / -5	2	Partial capture
08-11 18:24	20m	+3 / -	TT1GD	-7 / -	2	✓ Closing observed
08-11 18:22	20m	- / -	IV3KFD	-22 / -	2	Partial capture
08-11 18:21	20m	-11 / -	C91RU	- / -18	3	✓ Closing fragment
08-10 05:06	20m	- / -	UA3VVA	-20 / -	3	✓ Closing fragment
08-10 04:56	40m	-14 / -	KE4EB	- / -	2	Partial capture
08-10 04:51	40m	-10 / -	UR5TOB	- / -16	2	✓ Closing fragment
08-10 04:42	40m	-8 / -	G3MOD	- / -15	2	✓ Closing fragment
08-10 04:39	40m	-3 / -	PD4RJ	- / -13	2	✓ Closing fragment
08-10 04:35	40m	0 / -	SP5EXA	- / -3	4	✓ Closing fragment
08-10 04:33	40m	-1 / -	TA1MHS	- / -20	3	✓ Closing fragment
08-10 04:30	40m	-6 / -	SP0DF	- / -11	3	✓ Closing fragment
08-10 04:29	40m	-4 / -	LA2HFA	- / -1	2	✓ Closing fragment
08-10 04:28	40m	-6 / -	UA3WG	- / -8	2	✓ Closing fragment
08-10 04:27	40m	-8 / -4	UA3ZUX	-16 / -9	4	✓ Full exchange observed
08-10 04:25	40m	-9 / -	DL5MKR	- / -	2	✓ Closing fragment
08-05 04:17	40m	-17 / -	N4MC	- / -16	2	✓ Closing fragment
08-05 04:13	40m	-12 / -	<...>	- / -1	4	Partial capture
08-02 04:13	40m	-12 / -	YO1BRANCUSI	- / -	4	Partial capture
08-02 04:04	40m	-10 / -	YN1J	- / -21	2	Partial capture
08-02 04:03	40m	-9 / -	K3ZIB	- / -20	2	✓ Closing fragment
08-02 03:59	40m	-7 / -	KC1EPL	- / -21	5	Partial capture
08-02 03:55	40m	-11 / -	HI8UD	- / -15	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
194515 +12 2663  CQ YL3CU KO06
194530 +10 2664  YL3CU RY3F +04
194545  +6 2663  RY3F YL3CU R-03
194600  +3 2664  YL3CU RY3F RR73
194600  -5 2196  YL3CU 9A3AUH JN75
194615  +4 2663  RY3F YL3CU 73
194630  +1 2196  YL3CU 9A3AUH JN75
194630  +0  838  YL3CU GM5DNA +00
194645  +6 2663  9A3AUH YL3CU +00
194700  +2  838  YL3CU GM5DNA +00
194700  +2 2196  YL3CU 9A3AUH R+00
194730  -1  839  YL3CU GM5DNA +00
194745 +10 2663  GM5DNA YL3CU R-04
194800  +0  838  YL3CU GM5DNA RR73
194815  +6 2663  GM5DNA YL3CU 73

10m

UTC    dB Audio  Message
103245 -10  721  YL3CU SV2CLJ R-05
124100 -15 1500  R6FX YL3CU -16
202300 -10 2682  PY4EVS YL3CU -22
202400  -6 2682  PU2PFH YL3CU -03 (x2)
203315  -9 2680  YL3CU DN9LL JO43 (x4)
182545 -16  868  YL3CU DN9AD R+01
131215  -5  638  YL3CU F1PBZ +06 (x4)
132430 -21 1847  YL3CU DH1GKS 73

20m

UTC    dB Audio  Message
050700 -11  835  YL3CU PI4TS JO23
050730 -22 1662  YL3CU UA3VVA 73
050745 -15  817  DH3LAT YL3CU -18
131845 -16  881  <...> YL3CU KO06
182145  -7 2430  C91RU YL3CU KO06 (x2)
182230 -22 1695  YL3CU IV3KFD JN65
182245 -13 2429  C91RU YL3CU 73
182300 -22 1695  YL3CU IV3KFD JN65
182430  -7  518  YL3CU TT1GD RR73
182445  +3 2429  TT1GD YL3CU 73
182500 -18 2064  YL3CU EA5HM IM99
182515  +3 2429  IV3KFD YL3CU -11 (x2)
182615  +2 2429  EA5HM YL3CU -05

80m

UTC    dB Audio  Message
190045  +5 1291  YL3CU UT4WT KO20
190100  -2 1239  UT4WT YL3CU -11
190115  +9 1291  YL3CU UT4WT R+00
190130  +0 1239  UT4WT YL3CU RR73
190145  +6 1291  YL3CU UT4WT 73
190200  +0 1240  CQ YL3CU KO06
190215 +14 1291  YL3CU UT4WT KO20
190230  +3 1239  CQ YL3CU KO06
190245 -10 1238  YL3CU DL1IP JN49
190245  +8 1291  YL3CU UT4WT KO20
190300  +4 1239  DL1IP YL3CU -11
190315  -5 1238  YL3CU DL1IP R-02
190315  +6 1291  YL3CU UT4WT KO20
190330  +3 1239  DL1IP YL3CU RR73
190345  -3 1239  YL3CU DL1IP 73

Decoder S/N history by band

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