UB3BCT — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving UB3BCT, decoded by SO8OO in southeastern Poland. 359 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 18 UTC dates in the available aggregate history. Observed between 2026-07-19 and 2026-11-04.

These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.

SO8OO decoded 359 FT8 messages attributed to UB3BCT as the transmitting token by decoded message structure across 18 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (52%), followed by 20 m (48%). The busiest six-hour window was 14:00-20:00 UTC, containing 46% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

359

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

20m · 173 10m · 186

First attributed message: 2026-07-19
Last attributed message: 2026-11-04 11:21 UTC

Observed FT8 message patterns

Attributed sample: 359 messages
Active dates: 18 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -21 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 157, moderate (-15 to -9 dB) 127, strong (≥ -8 dB) 75.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with UB3BCT in decoded directed-looking exchanges:

SP6FME · Poland ×2 4Z5PG · Israel 9K2GR · Kuwait 9K2HN · Kuwait CX2AQ · Uruguay EA5RJ · Spain EA8UP · Canary Islands F1PBZ · France GW8DX · Wales HG1DRC · Hungary IK3XJP · Italy IQ4JO · Italy

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to UB3BCT

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator: KO85 · 211 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-11-04 11:21 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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	UB3BCT S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 10:43	10m	- / -16	4Z5PG	-17 / -	3	✓ Closing fragment
11-04 10:21	10m	- / -18	EA5RJ	+8 / -	3	✓ Closing fragment
11-04 08:23	10m	-10 / -	SV1FJR	- / -12	2	✓ Closing fragment
10-31 10:50	10m	- / -16	EA1C	-13 / -	5	Partial capture
10-31 09:58	10m	- / -	EA1IOK	-2 / -	3	Partial capture
10-31 09:56	10m	- / -9	JY5IB	-20 / -	2	✓ Closing fragment
10-18 10:54	10m	- / -14	CT7AUT	-11 / -	3	Partial capture
09-25 06:28	10m	- / -8	9K2HN	-10 / -	2	✓ Closing fragment
08-30 09:21	10m	- / 0	S56P	-6 / -	2	Partial capture
08-22 16:16	20m	- / -16	BG7BMG	-15 / -	3	Partial capture
08-22 16:08	20m	- / -1	GJ0KYZ	+3 / -	2	✓ Closing fragment
08-22 15:56	20m	- / -14	7K1CPT	-10 / -	2	✓ Closing fragment
08-22 15:48	20m	-14 / +2	DK5OPA	+5 / +5	4	✓ Full exchange observed
08-22 15:35	20m	- / -7	I3QDK	-10 / -	4	Partial capture
08-22 15:34	20m	- / -	RZ4FWA	-14 / -	3	Partial capture
08-22 15:33	20m	- / -7	SP3JHZ	-1 / -	3	✓ Closing fragment
08-22 07:37	20m	- / -	F1PPH	-17 / -	9	Partial capture
08-22 07:37	20m	- / -13	RZ7KR	-1 / -	5	Partial capture
08-22 07:31	20m	-5 / -	R4AAR	- / -6	2	Partial capture
08-22 07:25	20m	-4 / -	DL1R	+11 / -15	13	Partial capture
08-22 07:24	20m	-2 / -	RV9CD	- / +4	2	✓ Closing fragment
08-22 07:19	20m	- / +2	RK4FF	+13 / -	2	✓ Closing fragment
08-22 07:17	20m	- / -	DM2DXA	+9 / -	5	✓ Closing fragment
08-22 07:15	20m	-4 / -8	RZ6L	-10 / -8	5	✓ Full exchange observed
08-22 07:15	20m	0 / -18	M7JVT	-11 / -	2	Partial capture
08-20 18:45	10m	- / -13	CX2AQ	-21 / -	2	✓ Closing fragment
08-20 18:43	10m	- / -13	DF5KX	-13 / -	3	Partial capture
08-20 15:50	10m	- / -	DL6ZAJ	-14 / -	4	Partial capture
08-20 15:48	10m	- / -	DF6QN	-2 / -	2	Partial capture
08-20 15:45	10m	- / -15	F1PBZ	-12 / -	2	Partial capture
08-20 15:37	10m	- / -	DN9AD	-22 / -	3	Partial capture
08-20 15:33	10m	-16 / -	ZS6KBS	- / -22	2	Partial capture
08-20 15:29	10m	-16 / -	SP9UPH	- / -3	2	✓ Closing fragment
08-20 14:38	10m	- / -7	IK3XJP	-5 / -	2	✓ Closing fragment
08-17 20:20	10m	-8 / -	DL4RAQ	- / -15	3	Partial capture
08-17 20:15	10m	-6 / -	PU2UTY	- / -20	2	Partial capture
08-17 20:09	10m	-1 / -	YU2SA	- / -6	2	Partial capture
08-17 19:44	10m	-21 / -	PY2KQ	- / -	2	Partial capture
08-17 19:42	10m	-18 / -	PP5HR	- / -22	3	Partial capture
08-17 19:29	10m	-6 / -	PY5TD	- / -13	5	Partial capture
08-17 18:41	10m	- / -13	OD5VB	-16 / -	3	✓ Closing fragment
08-17 17:56	10m	- / -	SV1EKI	-19 / -	3	Partial capture
08-17 17:45	10m	- / -	SV1EKI	-18 / -	4	Partial capture
08-17 17:10	10m	-15 / -	7X3WPL	- / -21	5	Partial capture
08-17 17:03	10m	-19 / -6	YT5DL	-11 / -	4	✓ Closing observed
08-17 16:56	10m	-15 / -	IQ4JO	- / -20	2	✓ Closing fragment
08-12 15:24	10m	- / -	RR73;	+12 / -	2	Partial capture
08-12 15:22	10m	- / -23	GW8DX	+12 / -	5	✓ Closing fragment
08-11 19:00	10m	-16 / -	OE6GBG	- / -13	2	✓ Closing fragment
08-11 18:55	10m	-14 / -	IU0VOG	-8 / -17	6	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
082300  -8  795  SV1FJR UB3BCT R-12 (x2)
083030 -13  795  <...> UB3BCT KO85
084815 -16 1197  HB9TWU UB3BCT R-17
085445 -16 1425  IK3ZBM UB3BCT R+08
085530  -4 2932  UB3BCT RD3FY KO85
102100  +6  643  UB3BCT EA5RJ -18 (x3)
104345 -16 1574  UB3BCT 4Z5PG -16 (x3)
111315 -20 1556  TF5B UB3BCT KO85
111430 -18 1726  <...> UB3BCT KO85 (x2)

20m

UTC    dB Audio  Message
154815 -19 2271  CQ UB3BCT KO85
154830  +6  558  UB3BCT DK5OPA JO30
154845 -14 2272  DK5OPA UB3BCT +05
154900  +5  558  UB3BCT DK5OPA R+02 (x2)
155130  +3  958  UB3BCT F5NNN IN94
155415  -6 2292  R9HW/M UB3BCT KO85
155600 -10 2726  UB3BCT 7K1CPT -14 (x2)
160300 -13 1027  UB3BCT G6MTI IO81
160845  +1  661  UB3BCT GJ0KYZ -01 (x2)
161600 -15 2272  UB3BCT BG7BMG -16 (x3)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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