UB3BDJ/6 — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia

Receiver-side FT8 activity involving UB3BDJ/6, decoded by SO8OO in southeastern Poland. 88 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 8 UTC dates in the available aggregate history. Observed between 2026-09-10 and 2026-09-18.

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 88 FT8 messages attributed to UB3BDJ/6 as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (70%), followed by 60 m (25%) and 80 m (5%). Most decodes (64%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 4 60m · 22 40m · 62

First attributed message: 2026-09-10
Last attributed message: 2026-09-18 04:48 UTC

Observed FT8 message patterns

Attributed sample: 88 messages
Active dates: 8 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -22 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 38.

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 UB3BDJ/6 in decoded directed-looking exchanges:

HZ1TT · Saudi Arabia ×3 Z335MK · North Macedonia ×2 OM5JG · Slovak Republic ×2 TK/4O7CC · Corsica SV8MQP · Greece LY790A · Lithuania

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.

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	UB3BDJ/6 S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 13:26	40m	- / -20	UR3QRP	-10 / -	5	Partial capture
09-18 12:40	40m	- / -1	SP5WZW	-6 / -	2	Partial capture
09-18 11:57	40m	- / -4	DL1JEL	+7 / -	2	Partial capture
09-18 06:00	40m	- / -	SP4OIK	+5 / -	2	Partial capture
09-18 05:34	40m	- / -	F1IQH	-12 / -	2	Partial capture
09-18 04:47	40m	-14 / -	<...>	- / -	3	Partial capture
09-18 04:41	40m	-8 / -	<...>	- / -	4	✓ Closing fragment
09-17 21:53	40m	- / -	SV1DZB	-9 / -	3	Partial capture
09-17 07:42	40m	- / -14	HA8DG	-14 / -	4	Partial capture
09-17 07:38	40m	- / -17	HA8DG	-8 / -	3	Partial capture
09-17 07:35	40m	- / -	PG5FRL	-22 / -	2	Partial capture
09-17 06:52	40m	- / -	S57X	-2 / -	5	Partial capture
09-17 05:42	40m	-8 / -	<...>	-1 / -	2	✓ Closing fragment
09-17 05:29	60m	- / -	SP9UH	+9 / -	3	Partial capture
09-16 21:20	60m	- / -12	S52DD	-14 / -	2	Partial capture
09-16 19:31	60m	- / +3	ON5PU	-2 / -	3	Partial capture
09-16 19:18	60m	- / -	DK2CC	-11 / -	5	Partial capture
09-16 19:14	60m	-6 / -13	G4ZFJ	-3 / -19	6	Partial capture
09-16 19:14	60m	-9 / -	<...>	-2 / -	11	✓ Closing fragment
09-16 19:13	60m	-4 / -6	OK7PM	+7 / -17	3	Partial capture
09-15 19:48	40m	- / -20	F4IFK	-4 / -	2	Partial capture
09-15 12:49	40m	- / -5	SP2TQQ	-20 / -	2	Partial capture
09-15 07:22	40m	- / -14	DK4RH	-14 / -	3	Partial capture
09-15 05:55	40m	-22 / -	TK/4O7CC	-22 / -	2	✓ Closing observed
09-15 03:49	40m	- / -16	GM6URC	-11 / -	3	Partial capture
09-14 22:09	40m	- / -18	RX3ASQ	-2 / -	2	Partial capture
09-14 21:53	40m	- / -4	ON1DGN	-9 / -	4	Partial capture
09-14 21:29	40m	- / -3	DD0CR	-17 / -	5	Partial capture
09-14 21:22	40m	- / -9	EA1KE	0 / -	2	Partial capture
09-14 21:19	40m	- / -18	IU5VMV	-18 / -	2	Partial capture
09-14 21:01	40m	- / -14	IQ4JO	-14 / -	2	Partial capture
09-14 20:43	40m	- / -14	RA3TD	-9 / -	4	Partial capture
09-14 20:05	40m	- / -10	DL5EBS	+8 / -	3	Partial capture
09-14 20:04	40m	- / -	RX3ASQ	-10 / -	2	Partial capture
09-14 19:32	80m	- / -6	ON6MX	+8 / -	3	Partial capture
09-14 19:10	40m	- / -11	DJ9WJ	-3 / -	5	Partial capture
09-14 18:46	60m	- / -8	OM5JG	+3 / -	2	Partial capture
09-14 18:45	40m	- / -11	DJ9WJ	0 / -	6	Partial capture
09-14 18:38	80m	- / -	ON7ER	-13 / -	3	Partial capture
09-14 18:25	80m	- / -	DF1AG	+13 / -	2	Partial capture
09-14 18:25	80m	- / -10	HB9FUX	+7 / -	4	Partial capture
09-14 18:21	40m	- / -	DL7ACA	+11 / -	2	Partial capture
09-14 17:41	40m	- / -5	SP2BZ	-3 / -	3	Partial capture
09-14 17:35	40m	- / -	R6YG	+3 / -	2	Partial capture
09-14 17:10	40m	- / -10	IW8AOF	-6 / -	2	Partial capture
09-14 15:26	40m	- / -14	DL5ARM	-2 / -	2	Partial capture
09-14 15:17	40m	- / 0	DB0CUI	-10 / -	2	Partial capture
09-14 09:28	40m	-24 / -	OE3FVU	- / -14	2	Partial capture
09-14 08:59	40m	- / -	DB2VS	-18 / -	2	Partial capture
09-14 08:13	40m	- / +8	SP5EXA	+14 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
055115  +2  676  UB3BDJ/6 SP4OIK KO03 (x4)
071045  -3 1734  UB3BDJ/6 OE1PMD JN88
115715  +5  559  UB3BDJ/6 DL1JEL JO60 (x2)
124015  -9 1829  UB3BDJ/6 SP5WZW -01 (x2)
132615  -8  564  UB3BDJ/6 UR3QRP R-20 (x5)
182630 -16 1828  UB3BDJ/6 9H4JX -15

60m

UTC    dB Audio  Message
191945  -7 1150  UB3BDJ/6 <...> RR73
192000 -11 1150  <...> UB3BDJ/6 73
192015  -8 2210  UB3BDJ/6 DK2CC JO63 (x2)
192945  -9 1149  UB3BDJ/6 F5OZC -04
193145  -5  782  UB3BDJ/6 ON5PU JO21 (x3)
204915 -17 1135  UB3BDJ/6 PA7PYR JO21
212000 -12 2218  UB3BDJ/6 S52DD R-12 (x2)
052915  +9 1033  UB3BDJ/6 SP9UH JO90 (x3)
190215  -6  778  UB3BDJ/6 9A9N -01

80m

UTC    dB Audio  Message
161600  -7  968  UB3BDJ/6 RU4SS LO36
182515 +11 1295  UB3BDJ/6 HB9FUX JN47
182515  +9  665  UB3BDJ/6 DF1AG JO52
182545 +16 1295  UB3BDJ/6 HB9FUX JN47
182545 +17  665  UB3BDJ/6 DF1AG JO52
182615  +3 1295  UB3BDJ/6 HB9FUX JN47 (x2)
182715  +7 1295  Z335MK UB3BDJ/6 73
182945  -7 1451  UB3BDJ/6 R1TET KO78
183845 -14  678  UB3BDJ/6 ON7ER JO10 (x3)
193215  +5  666  UB3BDJ/6 ON6MX JO11 (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.

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