UG3B — 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 UG3B, decoded by SO8OO in southeastern Poland. 91 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-21.

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 91 FT8 messages attributed to UG3B as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (57%), followed by 80 m (33%) and 40 m (10%). Several six-hour UTC windows tied for the largest share (82%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was -4 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

80m · 30 40m · 9 20m · 52

First attributed message: 2026-06-06
Last attributed message: 2026-10-21 17:53 UTC

Observed FT8 message patterns

Attributed sample: 91 messages
Active dates: 9 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -12 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 69.

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 UG3B in decoded directed-looking exchanges:

R3BIS · European Russia EX7CQ · Kyrgyzstan YO3JW · Romania EV1R · Belarus R3KLE · European Russia R3PBA · European Russia R3PLA · European Russia R4DI · European Russia R6OQ · European Russia RN2F · Kaliningrad RN3YN · European Russia RY3F · 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.

Most frequent locator attributed to UG3B

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 · 49 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-10-21 17:53 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	UG3B S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 17:51	80m	-10 / -	EV1R	+10 / -8	4	✓ Closing observed
10-21 17:40	40m	-8 / +6	EX7CQ	+4 / -4	3	✓ Full exchange observed
10-21 17:39	40m	- / -	UC6D	-2 / -	2	Partial capture
10-14 12:29	40m	-15 / -8	YO3JW	-4 / -	3	✓ Closing observed
09-18 23:51	80m	-1 / +1	R2PT	-2 / +8	3	Partial capture
09-18 23:47	80m	-4 / -3	RY3F	+4 / +1	4	✓ Full exchange observed
09-18 23:45	80m	-2 / -12	RN3YN	-13 / -	4	✓ Closing observed
09-18 23:44	80m	-1 / -	UB3ADO/P	- / -	2	Partial capture
09-18 23:42	80m	+2 / -12	RN2F	+10 / -17	5	✓ Full exchange observed
09-14 19:52	80m	- / -15	R3PBA	-8 / -	2	✓ Closing fragment
09-14 19:46	80m	- / -	R3KLE	-7 / -	3	✓ Closing fragment
09-14 19:46	80m	- / -	UB6OFG	-2 / -	2	Partial capture
09-14 19:45	80m	-4 / -6	RA3TVW	-6 / -9	3	Partial capture
09-14 19:43	80m	-4 / -	R6OQ	- / -	4	✓ Closing fragment
09-14 19:40	80m	-1 / -5	R3PLA	+7 / -21	7	✓ Full exchange observed
09-14 19:38	80m	+2 / +1	R4DI	-3 / -1	7	✓ Full exchange observed
08-29 06:15	20m	- / -17	UI6O	-17 / -	4	Partial capture
08-26 17:56	20m	+3 / -	IS0LYN	+5 / -8	3	Partial capture
08-26 17:53	20m	+3 / -	IK4RVY	- / -	3	Partial capture
08-26 17:46	20m	-5 / 0	R3BIS	+5 / -	4	✓ Full exchange observed
08-26 15:55	20m	- / -14	DM2DXA	-11 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
234745  -7  679  RY3F UG3B R+01
234800  +2  679  UG3B RY3F RR73
234815  +0  679  RY3F UG3B 73
234945  +2  679  CQ UG3B KO85 (x2)
235100  -2 1098  UG3B R2PT KO84
235115  -1  679  R2PT UG3B +08
235130  -2 1098  UG3B R2PT R+01
175115 -12 2104  EV1R UG3B KO85 (x2)
175200 +10 2103  UG3B EV1R RR73
175215  -6 2104  EV1R UG3B 73
175300  -2 2104  RX3ASQ UG3B KO85
175900 -23 2408  UG3B UB6OAK KN88
182300 -24 1860  UG3B RN7A -15

160m

UTC    dB Audio  Message
180215 -24 1178  UG3B R4RJ -16

40m

UTC    dB Audio  Message
122830 -19 1041  CQ UG3B KO85                          a1
122945 -15 1041  YO3JW UG3B KO85
123000  -2 1860  UG3B YO3JW -08 (x2)
173645 -11 1608  CQ UG3B KO85 (x5)
173930  -2 1605  UG3B UC6D KN95 (x2)
174000  +3  495  UG3B EX7CQ +06
174015  -8 2580  EX7CQ UG3B R-04
174030  +4  495  UG3B EX7CQ RR73
174200  -3 2580  YO4LUP UG3B KO85

20m

UTC    dB Audio  Message
174700  +4 1250  UG3B R3BIS RR73
174715  -4  697  R3BIS UG3B 73
175300  +3  735  IK4RVY UG3B KO85 (x3)
175445  +5  735  CQ UG3B KO85 (x2)
175600  +5  734  UG3B IS0LYN JN40
175615  +3  735  IS0LYN UG3B -08 (x2)
061345 -14 2583  CQ UG3B KO85
061530 -20 1457  UG3B UI6O KN87 (x4)

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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