R4LBN — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO44

Receiver-side FT8 activity involving R4LBN, decoded by SO8OO in southeastern Poland. 161 FT8 messages attributed to this token as transmitter, on 80m, 20m, 10m, across 14 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-08-31.

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 161 FT8 messages attributed to R4LBN as the transmitting token by decoded message structure across 14 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (85%), followed by 80 m (12%) and 10 m (3%). Most decodes (82%) fell within the six-hour window 14:00-20:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

161

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 19 20m · 137 10m · 5

First attributed message: 2026-06-11
Last attributed message: 2026-08-31 15:24 UTC

Observed FT8 message patterns

Attributed sample: 161 messages
Active dates: 14 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 60, moderate (-15 to -9 dB) 60, strong (≥ -8 dB) 41.

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 R4LBN in decoded directed-looking exchanges:

BG5BNW · China ×2 KF0YOB · United States ×2 R6TA · European Russia 9J2FI · Zambia BA6IM · China BA7IWL · China BD4VPZ · China BG2EFX · China BG7WJH · China BH3RAU · China BH4ECL · China BU2GU · Taiwan

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 R4LBN

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: LO44 · 75 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,908 km (approx.)
Last such locator decoded: 2026-08-31 15:24 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	R4LBN S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 15:20	20m	- / -5	DL1R	+1 / -	3	✓ Closing fragment
08-31 15:09	20m	-11 / -	BA7IWL	- / -13	2	✓ Closing fragment
08-31 15:07	20m	-2 / -7	PA3BMB	-7 / -3	5	✓ Full exchange observed
08-31 15:05	20m	-8 / -	UA0LQE	- / -5	2	Partial capture
08-30 19:30	80m	- / -6	SP9WAZ	-3 / -	2	Partial capture
08-30 19:28	80m	-6 / -	R3BBM	- / -12	2	Partial capture
08-30 19:26	80m	-15 / -11	OZ1JVX	+9 / -7	4	Partial capture
08-30 19:21	80m	-8 / -5	RQ4F	0 / -	6	✓ Full exchange observed
08-30 19:20	80m	-10 / -	9A3K	+18 / -9	3	Partial capture
08-30 19:19	80m	-16 / +1	R2APC	+3 / -	3	✓ Closing observed
08-30 19:19	80m	- / -15	RA3M	+2 / -	4	✓ Closing fragment
08-30 19:18	80m	-14 / -22	F4GTB	+12 / -12	6	✓ Full exchange observed
08-30 17:11	20m	-5 / -	VJ6X	- / -	3	Partial capture
08-17 12:45	20m	-11 / -	PY2GN	- / -	5	Partial capture
08-15 09:04	20m	-20 / -	RA0AG	- / -	2	Partial capture
08-15 09:01	20m	-20 / -	F5SFT	- / -	2	Partial capture
08-15 08:59	20m	-20 / -	R1BED	- / -	2	✓ Closing fragment
08-15 08:56	20m	-17 / -	RD0L	- / -11	3	Partial capture
08-15 08:52	20m	-20 / -	BA4TJP	- / -	2	Partial capture
08-09 19:10	20m	-16 / -	ON4JLB	- / -12	2	✓ Closing fragment
08-09 17:41	40m	- / -17	EU6UE	-16 / -	2	✓ Closing fragment
08-03 14:54	20m	-12 / -15	F5MXH	-24 / -13	2	Partial capture
08-03 14:53	20m	-11 / -	BA7JMO	- / -15	2	Partial capture
08-03 14:52	20m	-12 / -	RM0W	- / -	2	✓ Closing fragment
08-03 14:47	20m	-6 / -	YC1FMV	- / -6	2	Partial capture
08-03 14:46	20m	-6 / -	JH3EQP	- / -1	2	Partial capture
08-03 14:43	20m	-7 / -	BU2GU	- / -9	4	✓ Closing fragment
08-03 14:41	20m	-10 / -	BG2EFX	- / -1	2	✓ Closing fragment
08-03 14:36	20m	-10 / -	BH3RAU	- / -8	3	✓ Closing fragment
08-03 14:33	20m	-6 / -	JR6EZE	- / -	3	Partial capture
08-03 14:31	20m	-8 / -	BG7WJH	- / -6	3	✓ Closing fragment
08-02 18:12	20m	-20 / -	BH4ECL	- / +4	2	✓ Closing fragment
07-27 18:43	20m	- / -22	EX8ABR	-19 / -	2	Partial capture
07-27 18:38	20m	-17 / -	5W1SA	- / -11	2	Partial capture
07-27 18:36	20m	-18 / -	VK2LAW	- / -24	4	✓ Closing fragment
07-12 19:03	20m	- / -5	R6DJR	-16 / -	2	✓ Closing fragment
07-12 18:46	40m	- / -15	IQ4JO	-8 / -	3	✓ Closing fragment
06-23 17:28	20m	-22 / -	F5IXN	- / -	2	Partial capture
06-23 17:23	20m	-19 / -	F5IXN	-4 / -7	3	Partial capture
06-23 17:23	20m	-14 / -	R2GBR	- / -1	2	✓ Closing fragment
06-23 17:21	20m	-17 / -	BG5BNW	- / -5	4	✓ Closing fragment
06-23 17:17	20m	-13 / -	TF3AK	- / -	2	Partial capture
06-23 17:16	20m	-13 / -11	KF0YOB	-5 / -11	9	✓ Full exchange observed
06-23 17:15	20m	-16 / -	BA4IHB	- / -20	3	Partial capture
06-23 17:01	20m	-17 / -	KF0YOB	- / -11	10	Partial capture
06-23 16:56	20m	-15 / -	KF0YOB	- / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
150815 -11 2342  R4LBN PA3BMB R-07
150830  -2 2342  PA3BMB R4LBN RR73
150845  -5 2342  R4LBN PA3BMB 73
150900  -3 2342  LA2GCA R4LBN -13
150930 -10 2342  BA7IWL R4LBN -13 (x2)
151130  +2 2342  UA0LQE R4LBN -12
151300  -4 2342  EC5M R4LBN -14
151845  -3 2342  CQ NA R4LBN LO44 (x2)
152030  -2 2585  R4LBN DL1R JN58 (x3)
152345  -2 2342  CQ NA R4LBN LO44 (x2)

80m

UTC    dB Audio  Message
192500 -10 2364  CQ R4LBN LO44 (x2)
192615  +9 2704  R4LBN OZ1JVX JO46
192630 -11 2363  CQ R4LBN LO44
192645 +10 2704  R4LBN OZ1JVX JO46
192700 -15 2363  OZ1JVX R4LBN -07
192715  +8 2704  R4LBN OZ1JVX R-11
192800 -10 2363  R3BBM R4LBN -12 (x2)
192930 -15 2362  CQ R4LBN LO44 (x2)
193015  +0  203  R4LBN SP9WAZ -06
193030 -17 2363  CQ R4LBN LO44
193045  -6  203  R4LBN SP9WAZ -08
193100  -8 2363  CQ R4LBN LO44

40m

UTC    dB Audio  Message
184615  -9 2082  R4LBN IQ4JO JN63 (x3)
184945 -12 1970  R4LBN RC6OX KN88
193230 -21 2053  R4LBN YO4LUP KN43
195100  -3 2530  R4LBN R2EA/P -22
173930 -12 2617  R4LBN HG2DX -12
174130 -16 2270  R4LBN EU6UE -17 (x2)

10m

UTC    dB Audio  Message
095915 -12 1141  R4LBN A60PC/5 +00
122615  -4 2698  R4LBN R6OD +03
123945  -4 2788  R4LBN R6TA 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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