R2BFU — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving R2BFU, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-05 and 2026-09-19.

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 15 FT8 messages attributed to R2BFU as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (87%), followed by 40 m (13%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

80m · 13 40m · 2

First attributed message: 2026-09-05
Last attributed message: 2026-09-19 22:19 UTC

Observed FT8 message patterns

Attributed sample: 15 messages
Active dates: 2 UTC dates
Estimated median S/N: -15 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 1.

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 R2BFU in decoded directed-looking exchanges:

ON2BCB · Belgium SP3JHZ · Poland OK1UOZ · Czech Republic R5BM · European Russia RA3WY · European Russia RC2Y · European Russia UA4FKT · European Russia

Most frequent locator attributed to R2BFU

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 · 9 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-19 22:19 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	R2BFU S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 22:33	80m	- / -	F4CQA	-10 / -	3	Partial capture
09-19 22:33	80m	- / -3	R5BM	-4 / -	4	✓ Closing fragment
09-19 22:32	80m	- / -24	OK1UOZ	+8 / -	8	✓ Closing fragment
09-05 22:03	80m	-9 / -	IQ4JO	0 / -11	2	Partial capture
09-05 21:59	80m	- / -	EU1AFX	+3 / -	2	Partial capture
09-05 21:58	80m	- / -4	RC2Y	-2 / -	5	✓ Closing fragment
09-05 21:56	80m	-16 / -21	UA4FKT	+10 / -2	6	✓ Full exchange observed
09-05 21:53	80m	-24 / -4	RA3WY	+2 / -1	5	✓ Full exchange observed
09-05 21:53	80m	- / -	UA4FKT	+8 / -	2	Partial capture
08-31 21:07	40m	- / -12	ON2BCB	-7 / -	3	✓ Closing fragment
08-31 21:05	40m	- / -16	SP3JHZ	0 / -	2	✓ Closing fragment
07-03 18:59	40m	- / -1	RL3QGD	-2 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
223230  +7 2307  R2BFU OK1UOZ JO70
223300  +2 2078  R2BFU R5BM KO85
223300  +8 2307  R2BFU OK1UOZ JO70
223300  -8 1334  R2BFU F4CQA JN17
223330  -5 2078  R2BFU R5BM KO85
223330  +4 2307  R2BFU OK1UOZ R-24
223330 -15 1334  R2BFU F4CQA JN17
223400  -6 2078  R2BFU R5BM R-03
223400  +9 2307  R2BFU OK1UOZ R-24
223400  -8 1334  R2BFU F4CQA JN17
223430  -6 2078  R2BFU R5BM 73
223430  +9 2308  R2BFU OK1UOZ JO70 (x4)

40m

UTC    dB Audio  Message
185830  +5 2798  R2BFU IQ4JO JN63
185900  +0 2608  R2BFU RL3QGD KO91 (x2)
210515  -1 2211  R2BFU SP3JHZ R-16 (x2)
210715 -10 2030  R2BFU ON2BCB -12 (x3)
221845 -18 2187  CQ R2BFU KO85 (x2)
221930 -10  324  R2BFU RX9ABI MO05

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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