R6UBF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LN28

Receiver-side FT8 activity involving R6UBF, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-09 and 2026-08-30.

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 18 FT8 messages attributed to R6UBF as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (61%), followed by 80 m (39%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 7 20m · 11

First attributed message: 2026-07-09
Last attributed message: 2026-08-30 12:52 UTC

Observed FT8 message patterns

Attributed sample: 18 messages
Active dates: 3 UTC dates
Estimated median S/N: -13 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 5.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with R6UBF in decoded directed-looking exchanges:

RC6OD · European Russia R2SN · European Russia RA6ZA · European Russia RK2Z · European Russia R2DP · European Russia RA3LBW · European Russia R5BM · European Russia R4CCE · European Russia RN6MA · European Russia RN1ON · European Russia RX6DA · European Russia UA6AAW · European Russia

Most frequent locator attributed to R6UBF

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: LN28 · 13 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,686 km (approx.)
Last such locator decoded: 2026-08-30 12:52 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	R6UBF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 07:47	20m	- / +4	R2AL	+6 / -	2	Partial capture
08-30 12:43	20m	-10 / -	UD1I	- / -13	3	Partial capture
08-30 12:40	20m	- / -	TA4SSK	+2 / -	2	Partial capture
08-30 11:21	20m	- / -21	IK4LZH	+16 / -	3	✓ Closing fragment
08-29 17:04	40m	- / -20	R3TAW	-1 / -	3	✓ Closing fragment
08-28 16:32	40m	- / -	R3WDW	+12 / -	2	Partial capture
08-28 16:19	40m	- / -	R3WDW	0 / -	3	Partial capture
08-28 16:15	40m	- / -	R7DX	+13 / -	3	Partial capture
08-28 16:07	40m	- / -	R7DX	+7 / -	4	Partial capture
08-28 15:59	40m	- / -15	R4CCE	-5 / -	2	✓ Closing fragment
08-02 18:52	40m	- / -19	RC6OT	-9 / -	3	Partial capture
08-02 18:09	80m	- / -17	UA4QK	-3 / -	3	✓ Closing fragment
08-02 18:07	80m	-5 / -20	R3RB	+4 / -8	16	✓ Full exchange observed
08-02 18:06	80m	- / -19	RX6DA	+10 / -	2	✓ Closing fragment
08-01 21:53	80m	- / -14	RY4D	-4 / -	2	✓ Closing fragment
07-31 18:46	80m	- / -10	RK6MC	+6 / -	2	✓ Closing fragment
07-10 01:56	40m	- / -8	R2AL	-14 / -	6	✓ Closing fragment
07-09 19:22	80m	- / -17	RC6OD	+11 / -	3	✓ Closing fragment
07-09 19:14	80m	- / -12	R1TAX	-4 / -	3	Partial capture
07-09 19:14	80m	- / -16	UA3IHJ	+8 / -	2	Partial capture
07-09 17:01	40m	- / -22	RA7M	-4 / -	3	✓ Closing fragment
07-06 19:58	40m	- / -17	RN1ON	-12 / -	7	✓ Closing fragment
07-06 19:56	40m	- / -14	RK2Z	-6 / -	2	✓ Closing fragment
07-05 21:11	40m	- / -22	RA3WY	-17 / -	5	✓ Closing fragment
07-05 16:49	40m	- / -17	R2SN	-17 / -	3	✓ Closing fragment
07-04 18:32	80m	- / -	R6NW	-2 / -	2	Partial capture
07-04 18:16	80m	- / -16	RA3LBW	+2 / -	2	✓ Closing fragment
06-30 20:03	80m	- / -22	RA6ZA	-18 / -	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
180945  -5 1590  R6UBF UA4QK LO45 (x2)
181015  +7 1835  R6UBF R3RB R-20
181045  -1 1590  R6UBF UA4QK 73
181045  +6 1835  R6UBF R3RB LO03 (x2)
181130  -6  455  R3RB R6UBF -08
181145  +6 1835  R6UBF R3RB LO03
181200  -4  454  R3RB R6UBF -07
181215  +3 1835  R6UBF R3RB R-17 (x2)
181300 -13  454  CQ R6UBF LN28
181400  +4 1835  R6UBF R3RB LO03 (x2)
192230  -2 2217  R6UBF RA6LTD -11

40m

UTC    dB Audio  Message
161545 +15 2104  R6UBF R7DX KN84 (x3)
161945  +0  236  R6UBF R3WDW KO81 (x5)
164400  -1 2693  R6UBF R4ZZ -22
170400  -4  537  R6UBF R3TAW LO15 (x3)
193815  -6 1101  R6UBF RG3M KO97
171930  +5 1030  R6UBF 9A4ZM JN86
080245 -14 1633  R6UBF R1943OD -21

20m

UTC    dB Audio  Message
123700 -11  393  CQ R6UBF LN28 (x4)
124015  -1  394  R6UBF TA4SSK KM57 (x2)
124330 -13  394  UD1I R6UBF -13 (x3)
124700 -13  380  CQ R6UBF LN28 (x3)
074715  +5 1783  R6UBF R2AL KO85 (x2)
085600  -1 1694  R6UBF R2DP 73

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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