R6BU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KN94

Receiver-side FT8 activity involving R6BU, decoded by SO8OO in southeastern Poland. 132 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-15 and 2026-07-23.

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 132 FT8 messages attributed to R6BU as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (52%), followed by 80 m (24%) and 20 m (21%). Most decodes (67%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.

Overview

132

Messages attributed

UTC dates decoded

Active 15-min windows

-16 dB

Estimated median S/N

Bands

80m · 32 40m · 4 20m · 28 10m · 68

First attributed message: 2026-07-15
Last attributed message: 2026-07-23 14:01 UTC

Observed FT8 message patterns

Attributed sample: 132 messages
Active dates: 6 UTC dates
Estimated median S/N: -16 dB
Estimated 10th-90th percentile: -21 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 66, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 37.

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 R6BU in decoded directed-looking exchanges:

9A4ZM · Croatia ×2 R2SN · European Russia ×2 9K2HN · Kuwait D2UY · Angola RA4HG · European Russia RC5F · European Russia RL1B · European Russia RL3K · European Russia RX4SA · European Russia SV4ZQ · Greece SV7BAY · Greece UB1CCL · 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 R6BU

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: KN94 · 79 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,429 km (approx.)
Last such locator decoded: 2026-07-23 13:58 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	R6BU S/N	Counterpart	Counterpart S/N	Msgs	Capture
07-23 13:52	10m	-19 / -	KB2PIW	- / -2	6	Partial capture
07-23 13:32	10m	-12 / -	D2UY	- / -15	6	✓ Closing fragment
07-23 13:21	10m	-23 / -	YE1AJE	- / -	3	Partial capture
07-23 13:17	10m	-18 / -	YC2OEI	- / -20	4	Partial capture
07-23 13:12	10m	-19 / -	YE1AJE	- / -	3	Partial capture
07-23 13:00	20m	- / -11	IZ4JMA	-19 / -	3	Partial capture
07-20 19:37	80m	-10 / +6	F2WA	+4 / -2	4	✓ Full exchange observed
07-20 19:31	80m	-4 / -8	JH2FXK	-14 / -10	4	✓ Full exchange observed
07-20 19:27	80m	+4 / -5	R2EA	+2 / -	3	✓ Closing observed
07-20 19:24	80m	+5 / -	R0AH	- / -14	4	✓ Closing fragment
07-20 19:20	80m	- / 0	RV6HE	-4 / -	3	✓ Closing fragment
07-20 19:19	80m	- / -2	R1TAX	-4 / -	2	✓ Closing fragment
07-20 19:18	80m	- / -	RA0SCA	-15 / -	3	Partial capture
07-20 19:16	80m	- / -5	RC9WC	-21 / -	3	✓ Closing fragment
07-20 19:16	80m	+4 / +3	RD7P	+5 / +1	5	✓ Full exchange observed
07-20 19:15	80m	+4 / -10	DO9BAU	+4 / -18	3	✓ Full exchange observed
07-20 19:09	40m	- / -	SP6FME	-17 / -	2	Partial capture
07-20 19:06	40m	-17 / -	A61OK	- / -18	3	✓ Closing fragment
07-18 20:34	10m	-14 / -9	DH1GKS	-17 / -15	5	Partial capture
07-18 20:24	10m	- / -	DN9OPA	0 / -	4	Partial capture
07-18 20:22	10m	-16 / -	RX4SA	- / -2	2	✓ Closing fragment
07-18 20:19	10m	-17 / -	RW3RN	-11 / -4	2	Partial capture
07-18 20:16	10m	-21 / -8	RL3K	-10 / -	3	✓ Closing observed
07-18 20:16	10m	-17 / -2	SV4ZQ	-14 / -	3	✓ Closing observed
07-18 14:53	20m	-6 / -	XV9T	- / -	2	Partial capture
07-18 14:46	20m	-7 / -	XV9T	- / -	3	Partial capture
07-18 14:19	20m	-24 / -	EX8ABR	- / -	2	Partial capture
07-18 13:49	10m	- / -	RC5F	-11 / -	3	✓ Closing fragment
07-17 18:52	20m	-13 / -	EX8ABR	- / -13	3	Partial capture
07-17 18:48	20m	-16 / -12	G4DBW	-3 / -	3	✓ Closing observed
07-17 18:43	20m	- / -11	JY5CG	-16 / -	2	✓ Closing fragment
07-16 19:35	80m	+9 / -5	UA1AEL	+6 / -	3	✓ Closing observed
07-16 19:33	80m	+9 / -1	RK3ZB	-12 / -14	3	✓ Closing observed
07-16 19:33	80m	- / -	RM5F	-8 / -	2	Partial capture
07-16 19:33	80m	- / -	R6AC	-14 / -	4	Partial capture
07-16 19:32	80m	+13 / -3	SV1ENG	-6 / -	4	✓ Closing observed
07-16 19:31	80m	+12 / +6	9A4ZM	+7 / -5	8	✓ Full exchange observed
07-16 19:29	80m	+7 / -3	UA9FKM	-17 / -24	5	✓ Full exchange observed
07-16 19:28	80m	+10 / -2	R2SN	0 / -6	4	✓ Full exchange observed
07-16 19:28	80m	- / -	R3HH	+10 / -	2	Partial capture
07-16 19:28	80m	- / -	R9FE	-14 / -	2	Partial capture
07-16 19:24	80m	+3 / -9	DK7ZT	-7 / -20	11	✓ Full exchange observed
07-16 19:24	80m	- / -	RM5F	-8 / -	4	Partial capture
07-16 19:24	80m	-1 / -2	RW4HB	-17 / -9	3	Partial capture
07-16 18:18	20m	-16 / -	BG7BVI	- / -	2	Partial capture
07-16 17:58	20m	-9 / -	BH2WTV	- / -	3	Partial capture
07-16 16:02	20m	-10 / -	VK2LAW	- / -	3	Partial capture
07-16 15:56	20m	-10 / -	BH2WTV	- / -	3	Partial capture
07-15 18:34	40m	- / -3	DK7ZT	-22 / -	2	Partial capture
07-15 18:33	40m	- / -10	HG8IT	-16 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
133315 -10 2383  D2UY R6BU KN94 (x5)
133715 -21 1553  YE1AJE R6BU KN94
134300 -15 1487  KB2PIW R6BU KN94 (x7)
135815 -20 1577  YB1BML R6BU KN94 (x2)

20m

UTC    dB Audio  Message
141200 -20 2141  R6BU RA9LL -12
141915 -24 1899  EX8ABR R6BU KN94 (x2)
142745 -17 2208  7K4AIS R6BU KN94
143915 -14  876  EA2EED R6BU KN94
144600  -6  374  XV9T R6BU KN94 (x5)
145845 -14  944  TJ1GD/P R6BU R-19
190315 -11  683  TN8GD R6BU KN94
130045 -18 1897  R6BU IZ4JMA JN54 (x3)

80m

UTC    dB Audio  Message
192700  -9  534  R6BU UN7LEW -13
192700  +1 2254  R6BU R2EA -05
192730  +3 2126  R6BU SP5DFK JO82
192730  +2 2254  R6BU R2EA RR73
192745  +4 2130  R2EA R6BU 73
192945  -1 1939  UA9ZZ R6BU KN94
193130  -2 2208  JH2FXK R6BU KN94
193145 -14 2264  R6BU JH2FXK -08
193200  -6 2208  JH2FXK R6BU R-10 (x2)
193730  +4 1624  R6BU F2WA +06
193745  -9 1623  F2WA R6BU R-02
193800  +4 1625  R6BU F2WA RR73
193815 -12 1622  F2WA R6BU 73
193915  +3 2502  HF5A R6BU KN94

40m

UTC    dB Audio  Message
183200  -8  870  R6BU RK4FD LO22 (x3)
183300 -16 1492  R6BU HG8IT -10
183330  -8  870  R6BU RK4FD LO22
183330 -15 1492  R6BU HG8IT RR73 (x2)
183400 -23 1905  R6BU DK7ZT -03 (x2)
190600 -17 1086  A61OK R6BU KN94
190615  -2 2882  R6BU UA6JQ -03
190800 -18 1087  A61OK R6BU R-18 (x2)
190915 -16 1086  R6BU SP6FME JO90 (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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