R3BIS — 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 R3BIS, decoded by SO8OO in southeastern Poland. 854 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 20 UTC dates in the available aggregate history. Observed between 2026-07-29 and 2026-09-12.

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 854 FT8 messages attributed to R3BIS as the transmitting token by decoded message structure across 20 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (60%), followed by 40 m (40%). Most decodes (64%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

854

Messages attributed

UTC dates decoded

125

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 344 20m · 510

First attributed message: 2026-07-29
Last attributed message: 2026-09-12 18:10 UTC

Observed FT8 message patterns

Attributed sample: 854 messages
Active dates: 20 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -20 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 287, moderate (-15 to -9 dB) 354, strong (≥ -8 dB) 213.

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 R3BIS in decoded directed-looking exchanges:

TA2ED · Asiatic Turkey ×2 SP6FME · Poland ×2 SV2AEL · Greece ×2 RX9ABI · Asiatic Russia ×2 F4HSB · France ×2 RV6HE · European Russia ×2 DH0GBC · Fed. Rep. of Germany ×2 DK7ZT · Fed. Rep. of Germany ×2 F1IQH · France ×2 OZ5AGJ · Denmark ×2 R6FX · European Russia ×2 TN8GD · Republic of the Congo ×2

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 R3BIS

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 · 428 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-12 18:09 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	R3BIS S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 18:10	40m	-10 / -9	DH0GBC	0 / -15	3	✓ Full exchange observed
09-12 18:01	40m	-8 / -	BA4IE	- / -17	2	✓ Closing fragment
09-12 17:51	40m	-2 / -13	RD7KW	+4 / -4	4	✓ Full exchange observed
09-12 17:48	40m	+3 / -9	IN3LHF	-4 / -17	5	Partial capture
09-12 17:45	40m	-1 / -	R6ZAJ	- / -14	2	✓ Closing fragment
09-12 17:44	40m	- / -5	OM6APJ	+4 / -	3	✓ Closing fragment
09-12 17:38	40m	-15 / -	UB3FBD	-8 / -6	5	✓ Closing observed
09-12 17:37	40m	-8 / -	RN6HK	- / -	2	✓ Closing fragment
09-12 17:33	40m	- / -14	RN6HK	0 / -	5	Partial capture
09-12 17:25	40m	- / -2	RA6OY	+7 / -	7	✓ Closing fragment
09-12 17:25	40m	- / -19	R6HV/P	-16 / -	2	Partial capture
09-12 17:14	40m	- / -8	RZ7KR	+1 / -	2	✓ Closing fragment
09-12 17:12	40m	-18 / -13	DH0GBC	+5 / -10	3	Partial capture
09-12 17:08	40m	-12 / -	HG8LXL	-9 / -12	6	Partial capture
09-12 17:07	40m	-14 / -15	DK5DW	+3 / -14	5	✓ Full exchange observed
09-12 16:58	40m	-17 / -10	ON1DGN	-14 / -	3	✓ Closing observed
09-12 16:55	40m	-19 / -	HG8LXL	-8 / -23	2	Partial capture
09-12 16:51	40m	-13 / +6	RT8T	-24 / -8	2	Partial capture
09-12 16:49	40m	- / -18	UB6ZDJ	-10 / -	2	✓ Closing fragment
09-12 16:46	40m	- / +8	RA6ZD	-17 / -	3	✓ Closing fragment
09-05 07:02	40m	- / +7	SP5ALV	+3 / -	2	✓ Closing fragment
09-05 06:41	40m	- / -3	R2EA	-14 / -	2	✓ Closing fragment
09-05 06:35	40m	- / -12	SP5EXA	+22 / -	3	✓ Closing fragment
09-05 06:31	40m	- / -21	RQ3P	-15 / -	3	✓ Closing fragment
09-05 06:26	40m	- / -5	RX3DRC	-22 / -	4	✓ Closing fragment
09-05 06:25	40m	- / -	DF8RU	+3 / -	2	Partial capture
09-05 06:22	40m	- / -13	R3PJ	-16 / -	2	✓ Closing fragment
09-05 06:12	40m	- / -2	UA3ADE	-8 / -	2	✓ Closing fragment
09-05 06:02	40m	- / -5	RN6LPC	-14 / -	3	✓ Closing fragment
09-05 05:58	40m	- / -8	RK6MC	-11 / -	4	✓ Closing fragment
09-05 05:54	40m	- / -12	RV3YN	-14 / -	3	✓ Closing fragment
09-05 05:52	40m	- / -9	RN6LPC	-12 / -	4	Partial capture
09-05 05:50	40m	- / -12	SP4MPH	-16 / -	2	✓ Closing fragment
09-05 05:48	40m	- / 0	RA3ZDU	-17 / -	3	✓ Closing fragment
08-31 07:38	20m	+6 / -	RA3Y	- / -	2	Partial capture
08-31 07:31	20m	-1 / -	RZ6L	-6 / -8	3	✓ Closing observed
08-31 07:29	20m	-1 / -13	UI6O	-10 / -16	5	✓ Full exchange observed
08-31 06:28	20m	+6 / -21	F4HSB	-5 / -13	8	✓ Full exchange observed
08-31 06:24	20m	- / -12	G7IGN	+10 / -	3	✓ Closing fragment
08-31 06:08	20m	- / -5	R6FX	-1 / -	3	✓ Closing fragment
08-31 05:20	40m	- / -	DK5DW	+2 / -	3	Partial capture
08-31 05:16	40m	- / -	SV1DKR	-14 / -	2	Partial capture
08-31 05:13	40m	- / -	DL6UCK	-16 / -	2	✓ Closing fragment
08-31 05:12	40m	- / -	SV1DKR	-18 / -	2	Partial capture
08-31 05:08	40m	- / -	SV1DKR	-16 / -	2	Partial capture
08-31 04:44	40m	- / 0	DL8WEM	-5 / -	3	✓ Closing fragment
08-31 04:39	40m	- / -	YL3AKH	-6 / -	2	✓ Closing fragment
08-31 04:13	40m	- / -6	R6DYK	-13 / -	2	✓ Closing fragment
08-31 04:05	40m	- / -	DL8TV	-6 / -	2	Partial capture
08-31 04:04	40m	-10 / -	YL2EA	-11 / -5	3	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
175130  +3 1047  R3BIS RD7KW KN75
175145  -2  852  RD7KW R3BIS -04
175200  +6 1047  R3BIS RD7KW R-13 (x2)
175830  -7 1303  R3BIS RJ6L R-22
180015  -5  850  CQ R3BIS KO85 (x2)
180115  -6  850  BA4IE R3BIS -17 (x2)
180715 -14  849  CQ R3BIS KO85 (x2)
181000  +0  810  R3BIS DH0GBC -09
181015 -10  850  DH0GBC R3BIS R-15
181030  +1  810  R3BIS DH0GBC RR73
181200  -8  850  R3BIS G7LHK IO92

20m

UTC    dB Audio  Message
072830  -3  994  CQ R3BIS KO85
072945 -11 1658  R3BIS UI6O KN87
073000  +2  994  UI6O R3BIS -16
073015 -10 1658  R3BIS UI6O R-13
073045 -18  994  R3BIS F1IQH JN27
073100  -4  994  UI6O R3BIS RR73
073115  -6 2040  R3BIS RZ6L KN97
073130  -1  994  UI6O R3BIS RR73
073200  -2  994  RZ6L R3BIS -08 (x2)
073330  -5  994  CQ R3BIS KO85 (x3)
073830  +4  994  RA3Y R3BIS KO85 (x2)

80m

UTC    dB Audio  Message
190215  +5  254  R3BIS I1RJP JN45 (x8)
191845 +10 1222  R3BIS UA4FKT LO23 (x3)
192115  +1  272  R3BIS I1RJP JN45 (x4)

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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