R4LBC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO33

Receiver-side FT8 activity involving R4LBC, decoded by SO8OO in southeastern Poland. 64 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-31 and 2026-08-07.

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 64 FT8 messages attributed to R4LBC 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 (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (77%); the estimated median was -2 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

20m · 64

First attributed message: 2026-07-31
Last attributed message: 2026-08-07 11:56 UTC

Observed FT8 message patterns

Attributed sample: 64 messages
Active dates: 3 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -14 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 49.

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 R4LBC in decoded directed-looking exchanges:

A61SD · United Arab Emirates BG0DAP · China CR7BUJ · Portugal DD4JN · Fed. Rep. of Germany DH1HF · Fed. Rep. of Germany DH1NGL · Fed. Rep. of Germany DK6WS · Fed. Rep. of Germany EB3JT · Spain F4BJN · France G3YQA · England G8IXM · England JA2HYD · Japan

Most frequent locator attributed to R4LBC

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: LO33 · 26 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,771 km (approx.)
Last such locator decoded: 2026-08-07 11:54 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	R4LBC S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-07 11:55	20m	-8 / -	G3YQA	- / -4	2	✓ Closing fragment
08-07 11:53	20m	-1 / -	RA3Y	- / -	4	Partial capture
08-07 11:50	20m	0 / -	DK6WS	- / -17	3	✓ Closing fragment
08-07 11:35	20m	-4 / -	BG4OOO	- / -	2	Partial capture
08-07 11:33	20m	-6 / -	HA1BF	- / -	3	Partial capture
08-07 11:31	20m	-4 / -	KE4EB	- / -	2	Partial capture
08-07 11:27	20m	-4 / -	K2TQC	- / -15	5	Partial capture
08-07 11:22	20m	-5 / -	BG0DAP	- / -1	2	✓ Closing fragment
08-07 11:19	20m	+1 / -	DH1HF	- / -17	3	✓ Closing fragment
08-07 11:17	20m	0 / -	F4BJN	- / -12	2	✓ Closing fragment
08-07 11:16	20m	-2 / -12	DH1NGL	-16 / -12	7	✓ Full exchange observed
08-07 11:15	20m	-3 / -	A61SD	- / -8	2	✓ Closing fragment
08-07 11:13	20m	+1 / -	UA1AQC	- / -	2	Partial capture
08-07 11:09	20m	+4 / -	DD4JN	- / -12	2	✓ Closing fragment
08-07 11:07	20m	+4 / -	EB3JT	- / -8	2	✓ Closing fragment
08-07 11:05	20m	+8 / -	MI0NWA	- / -13	3	✓ Closing fragment
08-07 11:03	20m	0 / -	9H4CM	- / -	4	Partial capture
08-03 11:54	20m	-10 / -	PD2MAC/P	- / -9	2	✓ Closing fragment
08-03 11:12	20m	-16 / -	R9OX	- / -10	2	✓ Closing fragment
08-03 10:57	20m	-18 / -	SP6AXW	- / -14	2	✓ Closing fragment
08-03 10:49	20m	-4 / -	OH6FSO	- / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
113345  -8  273  HA1BF R4LBC LO33 (x2)
113530  -7  273  BG4OOO R4LBC LO33 (x2)
113715  +1  273  BG4ACY R4LBC LO33
114100  -9  272  R2ZDO R4LBC 73
115045  -2  273  DK6WS R4LBC LO33 (x3)
115300  -7  272  RA3Y R4LBC LO33 (x4)
115530  -2  272  G3YQA R4LBC R-04 (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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