R5BM — 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 R5BM, decoded by SO8OO in southeastern Poland. 3,555 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 64 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-06.

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 3,555 FT8 messages attributed to R5BM as the transmitting token by decoded message structure across 64 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (42%), followed by 160 m (27%) and 80 m (26%). Most decodes (86%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

3,555

Messages attributed

UTC dates decoded

441

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 961 80m · 920 40m · 1,482 20m · 174 10m · 18

First attributed message: 2026-06-06
Last attributed message: 2026-10-06 20:04 UTC

Observed FT8 message patterns

Attributed sample: 3,555 messages
Active dates: 64 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 665, moderate (-15 to -9 dB) 1,153, strong (≥ -8 dB) 1,737.

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 R5BM in decoded directed-looking exchanges:

R2EA/P · European Russia ×8 R2EA · European Russia ×5 UB0SMX/P · Asiatic Russia ×5 R9CS/P · European Russia ×4 R2PT · European Russia ×3 RA3WPF · European Russia ×3 UA3RBM · European Russia ×3 UB3ADO/P · European Russia ×3 R2GCV · European Russia ×2 R3BCK · European Russia ×2 R4RZ · European Russia ×2 RA3LCI · European Russia ×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 R5BM

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 · 2,317 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-10-06 20:04 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	R5BM S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 20:01	40m	- / -8	UA6XT	-11 / -	2	✓ Closing fragment
10-06 19:49	160m	-21 / -	R3YCJ	- / -	5	Partial capture
10-06 16:10	160m	-2 / -	UB3PAQ	- / -2	2	✓ Closing fragment
10-06 16:07	160m	-4 / -	UA9YDR	- / -18	6	✓ Closing fragment
10-06 16:00	160m	-4 / -	R9CS/P	- / -7	13	Partial capture
10-06 13:16	40m	- / -	UA9MA	-16 / -	2	✓ Closing fragment
10-05 20:23	80m	-8 / -	TF3VS	- / -	3	Partial capture
10-05 20:21	80m	-24 / -	R7IQ	-20 / -14	2	✓ Closing observed
10-05 20:19	80m	-6 / -	TF3VS	- / -	2	Partial capture
10-05 20:14	80m	-10 / -	TF3VS	- / -	3	Partial capture
10-05 20:10	80m	-11 / -9	RX3MX	-15 / -13	10	✓ Full exchange observed
10-05 20:08	80m	-10 / -	R3PJU	- / -	2	Partial capture
10-05 20:02	80m	-12 / -	R3PJU	- / -	2	Partial capture
10-05 19:56	80m	-6 / -	R6AO	- / -	3	Partial capture
10-05 19:53	80m	-16 / -	RA9SBN	-14 / -	2	✓ Closing observed
10-05 19:51	80m	-15 / -	VK3HJ	- / -	3	Partial capture
10-05 19:49	80m	- / -7	RA5O	-7 / -	2	Partial capture
10-05 17:54	160m	-11 / -	R2UZ	- / +5	3	✓ Closing fragment
10-05 17:50	160m	-7 / -17	RU3VT	-20 / -	3	✓ Closing observed
10-05 17:41	160m	-13 / -	R9CS/P	- / -	3	Partial capture
10-05 17:32	160m	-12 / -	R9CS/P	- / -	11	Partial capture
09-30 21:23	40m	-6 / -22	RM1F	+2 / -14	8	✓ Full exchange observed
09-30 21:19	40m	-7 / -	RC1C	- / -	4	Partial capture
09-30 21:14	160m	-3 / -	UA4UAR	- / -	3	Partial capture
09-30 20:59	160m	-12 / -	E73S	- / -	2	Partial capture
09-30 20:57	160m	-14 / -6	UB1CCL	-4 / +4	5	✓ Full exchange observed
09-30 20:56	160m	-12 / +7	UA1A	-18 / +1	5	✓ Full exchange observed
09-30 20:12	160m	-20 / -	C37AC	- / -	4	Partial capture
09-30 20:08	160m	-20 / -	R7LV	- / -	2	Partial capture
09-30 20:00	80m	-2 / -	R3DCX	- / +10	3	✓ Closing fragment
09-30 19:53	160m	-14 / -	OH0Z	- / -	3	Partial capture
09-30 19:51	160m	-15 / +6	R5BS	+2 / +9	5	✓ Full exchange observed
09-30 19:35	160m	- / -14	R6HV	-24 / -	2	✓ Closing fragment
09-30 19:32	160m	-20 / -	RZ6CO	- / -	3	✓ Closing fragment
09-29 22:27	160m	-11 / -	RA3WPF	-4 / -4	4	✓ Closing observed
09-29 22:22	40m	-13 / -	R6ADW	- / -	2	✓ Closing fragment
09-29 22:15	80m	+1 / -	R3DNB	- / 0	3	✓ Closing fragment
09-29 22:12	80m	-3 / -	R0SCG	- / -12	6	✓ Closing fragment
09-29 21:43	80m	-2 / -	OK7TB	- / -	2	Partial capture
09-29 21:37	160m	-14 / -	RW9JZ	- / -	3	Partial capture
09-29 21:27	160m	-15 / -	9K2HS	- / -19	9	✓ Closing fragment
09-29 21:20	160m	-13 / -	RA3S	+6 / +4	4	✓ Closing observed
09-29 21:13	160m	-12 / -18	IS0BOZ	-5 / -19	11	✓ Full exchange observed
09-29 21:11	160m	-12 / +4	RA5AD	+5 / -	4	✓ Full exchange observed
09-29 20:51	80m	+2 / -	R3VA	- / -	3	Partial capture
09-29 20:37	80m	0 / -1	RA6OQ	-4 / -2	4	✓ Full exchange observed
09-29 20:35	80m	-5 / -	R6LKG	- / -	3	Partial capture
09-29 20:24	80m	-8 / -	RA3PS	- / -7	6	✓ Closing fragment
09-29 20:17	40m	-9 / -	R6LKG	- / -	11	Partial capture
09-29 20:15	40m	-11 / -	RW4F	- / -15	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
212200  -9 1231  RC1C R5BM KO85
212315  -1 1231  RM1F R5BM KO85 (x4)
212500  +3 1179  R5BM RM1F -22
212515  -9 1231  RM1F R5BM R-14
212530  +0 1179  R5BM RM1F RR73
212545  -3 1231  RM1F R5BM 73
131400 -20 2047  R0CBI R5BM KO85
131615 -17 1636  R5BM UA9MA +15 (x2)
200100 -14  623  R5BM UA6XT -08 (x2)
200430 -23 1995  R6AEB R5BM KO85

160m

UTC    dB Audio  Message
160615  -8 2505  R9CS/P R5BM KO85 (x2)
160745  -7 2505  UA9YDR R5BM KO85 (x6)
161045  -1  813  UB3PAQ R5BM -02 (x2)
194915 -23 1964  R3YCJ R5BM KO85 (x5)

80m

UTC    dB Audio  Message
201215 -12 2182  RX3MX R5BM R-13 (x2)
201300 -17 1990  R5BM RX3MX RR73
201315 -12 2182  RX3MX R5BM 73
201345  -8 2182  SV5/TF1OL R5BM -16
201445 -11 2182  TF3VS R5BM KO85 (x5)
202130 -24 2182  R7IQ R5BM R-14
202145 -20 2182  R5BM R7IQ RR73
202345 -10 2182  TF3VS R5BM KO85 (x3)

20m

UTC    dB Audio  Message
082415  +1 1964  F4JXY/P R5BM -14 (x2)
082545  +5 2196  <...> R5BM -16 (x13)

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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