UB3IBG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO76

Receiver-side FT8 activity involving UB3IBG, decoded by SO8OO in southeastern Poland. 1,733 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-29.

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 1,733 FT8 messages attributed to UB3IBG as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (47%), followed by 160 m (24%) and 10 m (18%). Most decodes (76%) 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 -12 dB.

Overview

1,733

Messages attributed

UTC dates decoded

146

Active 15-min windows

-12 dB

Estimated median S/N

Bands

160m · 411 80m · 812 40m · 62 20m · 144 10m · 304

First attributed message: 2026-06-07
Last attributed message: 2026-08-29 20:41 UTC

Observed FT8 message patterns

Attributed sample: 1,733 messages
Active dates: 17 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -19 to -1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 444, moderate (-15 to -9 dB) 729, strong (≥ -8 dB) 560.

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 UB3IBG in decoded directed-looking exchanges:

R3ICU · European Russia ×4 R4FDD · European Russia ×4 R5AV · European Russia ×3 R1TET · European Russia ×2 R9DZ · Asiatic Russia ×2 UB8CPK · Asiatic Russia ×2 RQ4F · European Russia ×2 RA3LCI · European Russia ×2 R6NA · European Russia ×2 R4KR · European Russia ×2 SN4K · Poland ×2 R7KKO · European Russia ×2

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 UB3IBG

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: KO76 · 1,119 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,139 km (approx.)
Last such locator decoded: 2026-08-29 20:41 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	UB3IBG S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-29 20:14	80m	+4 / -	RA3VLR	- / -12	2	✓ Closing fragment
08-29 19:59	160m	-6 / -	LX1NO	- / -	2	Partial capture
08-29 19:51	160m	-11 / -	R2BRU	- / +4	2	✓ Closing fragment
08-29 19:49	160m	-11 / -10	DA0RR	-5 / -6	5	✓ Full exchange observed
08-29 19:27	80m	-4 / -	RA3X	+4 / +10	6	✓ Closing observed
08-29 19:24	80m	-4 / -	R2BRU	-14 / -	4	✓ Closing observed
08-29 18:23	160m	-15 / -1	RW3PL	-8 / -	5	Partial capture
08-29 18:21	160m	-15 / -	R1IO	- / 0	2	Partial capture
08-29 18:16	160m	-12 / -11	RW3RN	-2 / -	5	✓ Full exchange observed
08-29 18:14	160m	-13 / -21	SP9DGO	+6 / -18	8	✓ Full exchange observed
08-29 18:08	160m	-12 / -2	R1MA	-14 / -	5	✓ Full exchange observed
08-29 18:03	160m	-12 / -	OM7FS	- / -	4	Partial capture
08-29 18:00	80m	-11 / -	F4EZJ	+6 / 0	4	Partial capture
08-29 17:58	80m	-14 / -	PE2JMR	- / -15	3	✓ Closing fragment
08-29 17:56	80m	-10 / -8	F4EZJ	+3 / -3	5	✓ Full exchange observed
08-29 17:52	80m	-9 / -13	SP5DFK	+1 / -13	11	✓ Full exchange observed
08-29 17:43	80m	-10 / 0	RT2P	+1 / -	6	✓ Closing observed
08-29 17:42	80m	-10 / -	RA4FHO	+8 / -	2	✓ Closing observed
08-29 17:39	80m	-8 / -	DO1ID	+3 / -13	3	✓ Closing observed
08-29 17:36	80m	- / -12	IW0RLC	-3 / -	3	✓ Closing fragment
08-29 17:21	80m	-12 / -10	OK1UOZ	+10 / -8	6	✓ Full exchange observed
08-29 17:19	80m	-14 / -10	RN4SN	-9 / +8	5	✓ Full exchange observed
08-29 17:18	80m	-20 / -	UB4FGK	- / +4	2	✓ Closing fragment
08-29 17:14	80m	-18 / -	SM5RYW	-14 / -11	6	✓ Closing observed
08-29 17:12	80m	- / -14	R9FFJ	-13 / -	3	✓ Closing fragment
08-29 17:08	80m	-13 / -7	YO8AAZ	0 / -10	4	Partial capture
08-29 17:08	80m	-16 / -4	OH/SM5MRW	-7 / -14	2	Partial capture
08-29 17:05	80m	-11 / -10	R7YZ	-10 / -2	5	✓ Full exchange observed
08-29 17:03	80m	-14 / -	UB4CJS	- / +4	2	✓ Closing fragment
08-29 16:51	80m	-9 / -	P29YY	- / -17	6	✓ Closing fragment
08-16 10:12	10m	- / -12	IU0VOG	-9 / -	6	Partial capture
08-15 19:51	160m	-14 / -	OI5AY	- / -	2	Partial capture
08-15 19:41	160m	-9 / 0	RY3K	+8 / -	4	✓ Full exchange observed
08-15 19:39	160m	-12 / -	RA3TOS	- / -15	2	✓ Closing fragment
08-15 19:38	160m	-12 / -7	HA2ESX	+5 / -13	5	✓ Full exchange observed
08-15 19:35	160m	-12 / -	R50RKZ	- / -	3	✓ Closing fragment
08-15 19:33	160m	-10 / -	UA3FH	-22 / +5	3	✓ Closing observed
08-15 19:27	160m	-16 / -7	R3DPH	-3 / -25	5	✓ Full exchange observed
08-15 19:06	160m	- / +1	RU3T	-6 / -	2	Partial capture
08-15 19:00	160m	- / -2	R2DGN	-10 / -	3	✓ Closing fragment
08-15 18:45	160m	-11 / -	RA3LCI	- / +4	2	✓ Closing fragment
08-15 18:43	160m	-11 / -	R3ICU	- / -13	2	✓ Closing fragment
08-15 18:42	160m	-9 / -	RM3ZR	- / -	2	Partial capture
08-15 18:40	160m	-10 / -19	OM7CF	+7 / -14	5	✓ Full exchange observed
08-15 18:32	80m	+1 / -13	RK6MC	+12 / -	5	✓ Full exchange observed
08-15 18:31	80m	-1 / -10	RO2E/M	-13 / -8	2	Partial capture
08-15 18:29	80m	+6 / -	ZS6WAB	- / -	4	Partial capture
08-15 18:27	80m	+5 / +2	R50RKZ	+8 / +5	5	✓ Full exchange observed
08-15 18:25	80m	+3 / +7	R5ACQ	+5 / -	8	✓ Full exchange observed
08-15 18:23	80m	0 / +1	R2SDZ	+9 / -	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
192800  -5 1769  RA3X UB3IBG RR73
192815  +0 2066  UB3IBG RA3X 73
192830 -11 1769  CQ UB3IBG KO76
192845  +2 2066  UB3IBG RA3X KO73
192900 -13 1769  CQ UB3IBG KO76 (x2)
192945  +5 2066  UB3IBG RA3X KO73
193000 -10 1769  CQ UB3IBG KO76 (x5)
201400  +2  351  RA3VLR UB3IBG -12 (x2)
204145 -10  651  <...> UB3IBG KO76

160m

UTC    dB Audio  Message
194945  -3 1348  UB3IBG DA0RR R-10
195000 -11 1347  DA0RR UB3IBG RR73
195015  -9 1348  UB3IBG DA0RR 73
195030  -6 1347  CQ UB3IBG KO76
195100 -11 1347  R2BRU UB3IBG +04 (x2)
195200 -11 1347  CQ UB3IBG KO76
195930  -6 1414  LX1NO UB3IBG KO76 (x2)
200230  -4 1061  CQ UB3IBG KO76 (x6)

10m

UTC    dB Audio  Message
101945  +8  589  UB3IBG LX1NO R+11
102100  -9  520  DL7UMG UB3IBG -12
131845 -18 1613  UB3IBG DK5ON -03 (x3)
072930  -8 1652  UB3IBG RA6HIH -07
065830 -19 1461  UB3IBG DJ4WM JO42 (x3)
101200 -11  568  UB3IBG IU0VOG JN61 (x6)

40m

UTC    dB Audio  Message
172030  -9  479  R6OAQ UB3IBG R+07
173045  -4 2782  UB3IBG R7KKO -13
173130 -15  943  R7KKO UB3IBG R+00
173145  -1 2782  UB3IBG R7KKO RR73
173245 -11  942  UB3IBG RN6AK KN95 (x3)
173500 -19  943  CQ UB3IBG KO76                        a1 (x3)
174430 -12  684  UB3IBG OH3MB R-07 (x2)
175200  +0  683  UB3IBG DL5ASK -14 (x3)

20m

UTC    dB Audio  Message
140115 -13 1986  UB3IBG E70SZ JN84 (x3)
140230 -22 1987  OE5FIL UB3IBG -02
140330 -23 1987  OH3OJ UB3IBG R+06 (x2)
180500 -23 2150  F1ODM UB3IBG R-10
180700 -22 2150  CQ UB3IBG KO76                        a1
180715  -3  324  UB3IBG RA6OY KN88 (x5)
090300 -19 1882  UB3IBG PA2AMJ JO33 (x2)

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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