UB3UAC — 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

Receiver-side FT8 activity involving UB3UAC, decoded by SO8OO in southeastern Poland. 1,229 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 17 UTC dates in the available aggregate history. Observed between 2026-07-16 and 2026-10-04.

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 1,229 FT8 messages attributed to UB3UAC as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (69%), followed by 80 m (25%) and 20 m (6%). Most decodes (70%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

1,229

Messages attributed

UTC dates decoded

136

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 312 40m · 846 20m · 71

First attributed message: 2026-07-16
Last attributed message: 2026-10-04 03:07 UTC

Observed FT8 message patterns

Attributed sample: 1,229 messages
Active dates: 17 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -15 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 95, moderate (-15 to -9 dB) 409, strong (≥ -8 dB) 725.

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 UB3UAC in decoded directed-looking exchanges:

R6AAU · European Russia ×2 RG5A · European Russia ×2 R3UDU · European Russia ×2 R5AV · European Russia ×2 SV9QWC · Crete ×2 TA3NK · Asiatic Turkey ×2 SM7TZK · Sweden ×2 A61SD · United Arab Emirates F1DJY · France R4CCE · European Russia R6DZR · European Russia R6FY · European Russia

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	UB3UAC S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-03 23:46	40m	-14 / -	PI4DX	- / -	2	Partial capture
10-03 23:21	40m	-5 / -	E72PT/QRP	- / -	3	Partial capture
10-03 23:19	40m	-11 / -	UA9YDR	- / -	3	Partial capture
10-03 23:17	40m	-8 / -	UC6W	- / -	2	Partial capture
10-03 23:15	40m	-3 / -	3Z4DX	- / +8	3	✓ Closing fragment
10-03 23:13	40m	-4 / -	SV3AUW	-10 / -	2	✓ Closing observed
10-03 20:51	40m	- / -	G4DBW	-2 / -	2	Partial capture
10-03 20:47	40m	- / -	F4BYA	+12 / -	4	Partial capture
10-03 20:43	40m	- / -	F4BYA	0 / -	4	Partial capture
10-03 20:37	40m	- / -	F4BYA	+4 / -	4	Partial capture
10-03 20:36	40m	- / -	G4DBW	-4 / -	2	Partial capture
10-03 20:26	40m	- / -	ON7DE	-6 / -	3	Partial capture
10-03 20:20	40m	- / -	F4BYA	+1 / -	4	Partial capture
10-03 20:19	40m	- / -	G4DBW	-4 / -	2	Partial capture
10-03 20:12	40m	- / -	F4BYA	+2 / -	3	Partial capture
10-03 20:02	40m	- / -	F4BYA	+7 / -	4	Partial capture
10-03 19:55	40m	- / -	F4BYA	+5 / -	8	Partial capture
10-03 19:54	40m	- / -	IW3HXR	+2 / -	2	Partial capture
10-03 19:46	40m	- / -	F4BYA	+6 / -	8	Partial capture
10-03 19:35	40m	-10 / -5	G4HUE	-12 / -9	8	Partial capture
10-03 19:20	40m	-19 / -	DL7UKM	-15 / -14	2	Partial capture
10-03 19:11	40m	- / -	DG3DAF	-5 / -	2	Partial capture
10-03 19:03	40m	- / -	IN3IZQ	-12 / -	7	Partial capture
10-03 18:48	40m	-16 / -7	DL6ZOG	-6 / -	3	✓ Closing observed
10-02 17:50	40m	- / -	OE8PIT	-8 / -	2	Partial capture
10-02 16:04	40m	- / -6	UB3ZKO	-9 / -	3	✓ Closing fragment
10-01 20:13	80m	-3 / -	UA3IAP	-6 / -	2	✓ Closing observed
10-01 20:12	80m	-2 / -1	RA3SO	-12 / -	3	✓ Closing observed
10-01 20:02	80m	- / -12	RD4CAF	-12 / -	4	Partial capture
10-01 19:57	80m	- / -	R4FDK	0 / -	4	Partial capture
10-01 18:33	40m	- / -4	HB9ELE	+15 / -	5	✓ Closing fragment
10-01 18:29	40m	- / -	DG3DAF	-4 / -	2	Partial capture
10-01 18:28	40m	- / -	RX6ACR	-3 / -	3	Partial capture
10-01 18:23	40m	- / -	UB6LWX	-16 / -	2	Partial capture
10-01 18:16	40m	- / -	DL6ZOG	-3 / -	5	Partial capture
10-01 18:12	40m	- / -19	PA3BRB	-1 / -	6	✓ Closing fragment
10-01 18:07	40m	- / -	DL6ZOG	-2 / -	2	Partial capture
10-01 18:04	40m	- / -	HB9ZHK	-16 / -	5	Partial capture
10-01 18:00	40m	- / -	PA2IPA	-8 / -	3	Partial capture
10-01 17:58	40m	- / -	DJ0MEK	-10 / -	2	Partial capture
10-01 17:54	40m	- / -6	PA8DC	+1 / -	3	Partial capture
10-01 17:54	40m	- / -	PA3BRB	+8 / -	4	Partial capture
10-01 17:47	40m	- / -	F4JYH	-11 / -	2	Partial capture
09-25 22:45	80m	- / -19	R7KKO	-8 / -	2	Partial capture
09-25 22:37	80m	-16 / -	SP5EXA	+11 / 0	8	Partial capture
09-25 22:36	80m	- / -	DO1OAS	+2 / -	2	Partial capture
09-25 22:33	80m	- / -	HB9MOW	-4 / -	3	Partial capture
09-25 22:33	80m	-19 / -	R6ZEJ	- / -2	2	✓ Closing fragment
09-25 22:31	80m	- / -	EA3AKY	-3 / -	2	Partial capture
09-25 22:31	80m	- / -	DL9KM	0 / -	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
231515  -4  796  3Z4DX UB3UAC (x3)
231730  -9  796  UC6W UB3UAC L (x2)
231930 -13  796  UA9YDR UB3UAC (x3)
232130 -11  957  E72PT/QRP UB3UAC (x3)
234600 -13  957  PI4DX UB3UAC (x2)
030630 -14  960  FW1DPS UB3UAC -11
030700 -16  960  7Z1IS UB3UAC

80m

UTC    dB Audio  Message
200630  -3  894  CQ UB3UAC
200645  -9  897  UB3UAC RD4CAF -07
201245 -12 1807  UB3UAC RA3SO KO93
201300  +1  894  CQ UB3UAC
201345  -6 1478  UB3UAC UA3IAP KO76
201345 -13 1807  UB3UAC RA3SO R-01
201400  -2  894  RA3SO UB3UAC RR73
201500  -3  894  UA3IAP UB3UAC RR73
201600  -4  894  CQ UB3UAC (x3)
202315  +3  808  UB3UAC DO5HOK JO41
202430  -4  895  CQ UB3UAC (x3)

20m

UTC    dB Audio  Message
160130  +4 1324  UB3UAC R6FCT -13 (x3)
160245 -17  958  CQ UB3UAC
160300  +5  958  UB3UAC EB3JT JN01
160315 -11  958  CQ UB3UAC
160330  +5  958  UB3UAC EB3JT JN01
160345 -15  958  CQ UB3UAC
160400 +15  958  UB3UAC EB3JT JN01
160415 -13  958  CQ UB3UAC
160430  +8  958  UB3UAC F4ACR IN96
160430  -3 1293  UB3UAC DK4FP JN48
160500 +13  958  UB3UAC EB3JT JN01 (x2)
160600  +4  958  UB3UAC F4ACR IN96

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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