YO3CBS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Romania Locator transmitted in a decoded message: KN34

Receiver-side FT8 activity involving YO3CBS, decoded by SO8OO in southeastern Poland. 19 related FT8 messages, observed on 80m, 40m, 20m, 10m, across 7 UTC dates. Heard between 2026-05-29 and 2026-08-09.

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

-10 dB

Mean decoder S/N

Bands

80m 40m 20m 10m

First seen: 2026-05-29
Last seen: 2026-08-09 01:04 UTC

Frequent QSO partners observed at SO8OO

Stations YO3CBS worked most often, as logged from our receiver:

DN9TTH · Fed. Rep. of Germany DO1FDK · Fed. Rep. of Germany F5RMK · France ND9M · United States RZ4FWA · European Russia LZ2II · Bulgaria RK0SK · Asiatic Russia

Activity Heatmap

Locator transmitted by YO3CBS

Approximate centre of KN34, decoded 2026-08-09 03:40 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	YO3CBS S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-09 03:35	40m	-8 / -	YV5YMA	- / -	4	Partial capture
08-09 03:03	40m	- / +3	RX7T	-7 / -	4	Partial capture
07-12 06:10	20m	-6 / -	3V8HP	- / -	9	Partial capture
07-12 06:04	20m	-12 / -	RZ4FWA	- / -9	2	✓ Closing fragment
07-12 06:03	20m	- / -2	UA4FEN	-15 / -	3	Partial capture
07-12 06:00	20m	-10 / -	VK7NET	- / -7	3	Partial capture
07-12 05:57	20m	-10 / -	N4MMR	- / -	2	Partial capture
07-12 05:54	20m	-10 / -	T40FRC	- / -	2	Partial capture
07-12 05:29	20m	+2 / -	VK2VIN	- / -	2	Partial capture
07-12 05:22	20m	-10 / -	VK5WU	- / -24	4	Partial capture
07-12 05:16	20m	+2 / -	T40FRC	- / -	2	Partial capture
07-12 05:15	20m	+12 / -	RK0SK	- / -9	2	✓ Closing fragment
06-26 16:42	10m	- / -19	UT7UJ	-9 / -	6	Partial capture
06-07 04:47	20m	-23 / -4	ND9M	-16 / -	4	✓ Closing observed
06-01 10:26	10m	-4 / -	DO1BWO	- / -19	2	Partial capture
06-01 10:22	10m	-10 / -	DN9TTH	- / +2	2	✓ Closing fragment
06-01 10:21	10m	-2 / -	F5RMK	-20 / -7	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
030315  -1 2551  YO3CBS RX7T +03 (x4)
033545  -4 2165  YV5YMA YO3CBS KN34 (x4)

10m

UTC    dB Audio  Message
102145 -20 1600  YO3CBS F5RMK RR73
102200  -2 1376  F5RMK YO3CBS 73
102230  -7 1375  DN9TTH YO3CBS +02 (x2)
102430 -13 1376  DO1FDK YO3CBS RR73
102630  +0 1378  DO1BWO YO3CBS -19 (x2)
102930 -18 1376  DL6KVB YO3CBS -08
164200 -15 1225  YO3CBS UT7UJ -19 (x6)
145800 -12  633  YO3CBS DK8HC JO42

20m

UTC    dB Audio  Message
060230 -12 1649  VK7NET YO3CBS R-07
060345 -13 1650  YO3CBS UA4FEN -02
060400 -12 1649  RZ4FWA YO3CBS -09 (x2)
060445 -20 1650  YO3CBS UA4FEN -13 (x2)
061030 -10 1649  3V8HP YO3CBS KN34 (x9)

80m

UTC    dB Audio  Message
183700  +7 1082  YO3CBS LZ2II RR73

Decoder S/N history by band

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