ON1BMM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO21

Receiver-side FT8 activity involving ON1BMM, decoded by SO8OO in southeastern Poland. 661 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 44 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-20.

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 661 FT8 messages attributed to ON1BMM as the transmitting token by decoded message structure across 44 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (35%), followed by 80 m (32%) and 20 m (24%). Most decodes (77%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (61%); the estimated median was -6.5 dB.

Overview

661

Messages attributed

UTC dates decoded

148

Active 15-min windows

-6.5 dB

Estimated median S/N

Bands

80m · 210 60m · 60 40m · 232 20m · 159

First attributed message: 2026-06-07
Last attributed message: 2026-09-20 06:49 UTC

Observed FT8 message patterns

Attributed sample: 661 messages
Active dates: 44 UTC dates
Estimated median S/N: -6.5 dB
Estimated 10th-90th percentile: -16 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 76, moderate (-15 to -9 dB) 181, strong (≥ -8 dB) 404.

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 ON1BMM in decoded directed-looking exchanges:

CR5VP · Portugal ×7 F1PBZ · France ×2 R5AV · European Russia ×2 SP9UPH · Poland ×2 SN4WWA · Poland ×2 UA2KU · Kaliningrad ×2 SV2CLJ · Greece CR2WWA · Azores DL3RAJ · Fed. Rep. of Germany F4HSB · France IU4DTV · Italy JR0SXU · Japan

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 ON1BMM

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: JO21 · 393 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,192 km (approx.)
Last such locator decoded: 2026-09-20 06:49 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	ON1BMM S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 06:46	40m	-8 / -	II8IHBC	- / -	7	Partial capture
09-20 06:45	40m	-7 / -	II4IANT	- / -	2	Partial capture
09-20 06:38	40m	-11 / -	II6IGTO	- / -25	2	Partial capture
09-20 06:36	40m	-13 / -	SP100PKP	- / -	2	Partial capture
09-19 20:28	60m	-18 / 0	II9IAGM	-16 / -9	3	Partial capture
09-19 19:46	80m	0 / -	R3RRC/P	- / -18	2	Partial capture
09-19 18:46	40m	-11 / -	II0IHMG	- / -14	2	Partial capture
09-19 18:43	40m	-6 / -	II4IANT	- / -	2	Partial capture
09-19 18:39	40m	-3 / -	R3RRC/P	- / -3	3	Partial capture
09-19 15:14	40m	- / -8	SQ8GBG	-6 / -	2	Partial capture
09-19 15:08	40m	-15 / -	R3RRC/P	- / -	3	Partial capture
09-18 21:04	40m	-6 / -	II6IGTO	- / -22	4	Partial capture
09-18 20:55	40m	-8 / -1	IR0IADU	-7 / -	2	Partial capture
09-18 20:53	40m	-8 / -	II6IGTO	- / -	2	Partial capture
09-18 20:52	40m	-6 / -	II8IHBC	- / -5	2	Partial capture
09-18 20:50	40m	-6 / -12	II4IANT	0 / -19	3	Partial capture
09-18 18:37	60m	- / -	EA1IOK	-6 / -	4	Partial capture
09-18 18:37	60m	- / -	IK4CBO	-7 / -	2	Partial capture
09-18 18:34	60m	-12 / -19	II8IHBC	-16 / -	3	Partial capture
09-18 18:27	40m	-5 / -4	ER1WK/QRP	-1 / -10	3	Partial capture
09-18 18:06	60m	- / -	EA1IOK	-11 / -	5	Partial capture
09-17 21:27	80m	-10 / -13	II6IGTO	-21 / -25	5	Partial capture
09-17 21:08	80m	-12 / -1	II6IGTO	-22 / -25	7	Partial capture
09-17 21:02	80m	-2 / -4	II9IAGM	-4 / -11	8	Partial capture
09-17 20:57	40m	-1 / -	F1LPT/P	- / -17	3	Partial capture
09-17 20:51	40m	-1 / -	GJ0KYZ/QRP	- / -9	2	Partial capture
09-17 20:28	40m	-2 / -	IT9ACJ/QRP	- / +4	2	Partial capture
09-17 20:25	40m	-11 / -1	II6IGTO	-6 / -	2	Partial capture
09-17 20:22	80m	0 / -2	II8IHBC	+1 / -7	3	Partial capture
09-16 21:03	80m	+9 / -	II8IHBC	- / -	4	Partial capture
09-16 20:22	40m	- / +6	II6IGTO	-7 / -	2	Partial capture
09-16 19:53	80m	+4 / -	II6IALU	- / -22	2	Partial capture
09-15 21:03	80m	-9 / -	II9IABJ	- / -9	2	Partial capture
09-15 20:57	80m	-11 / -	RD9M/3	- / -16	6	Partial capture
09-15 19:41	60m	-20 / -	II7IABB	- / -9	2	Partial capture
09-15 19:38	60m	-21 / -13	II0IHMG	-16 / -	2	Partial capture
09-15 19:14	40m	-6 / -	II9IAGM	- / -	3	Partial capture
09-15 19:05	80m	-1 / -5	II8IHBC	+2 / +1	2	Partial capture
09-15 18:51	60m	-18 / -	OZ/DG4BRT	- / -	3	Partial capture
09-15 18:15	40m	- / -	ON7KY	+1 / -	4	Partial capture
09-15 18:14	40m	-2 / -5	II9IAGM	-13 / -12	8	Partial capture
09-14 20:01	80m	-3 / -12	II9IAGM	+6 / -7	3	Partial capture
09-14 19:42	80m	+3 / -1	II8IHBC	0 / -13	3	Partial capture
09-14 19:34	60m	- / -	LY3W	+11 / -	11	Partial capture
09-14 19:33	60m	- / -	EA1IOK	-8 / -	5	Partial capture
09-14 19:32	60m	-21 / -	II7IABB	- / -13	2	Partial capture
09-14 19:08	60m	- / -20	II0IHMG	-13 / -	3	Partial capture
09-14 19:07	60m	- / -	EA1IOK	-4 / -	2	Partial capture
09-14 19:00	60m	-18 / -	II9IAGM	- / -	2	Partial capture
09-14 17:06	60m	-18 / -15	II6IALU	-10 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
063715 -14 1674  UF6V/UA5D ON1BMM R-25
063815 -10 1671  II6IGTO ON1BMM R-25 (x2)
064030  -8 2157  ON1BMM II6IALU -02
064330  -3 2334  ON1BMM RV6G/P -05
064515  -8 2330  II4IANT ON1BMM JO21 (x2)
064615  -7 2329  II8IHBC ON1BMM JO21 (x6)
064915 -13 2325  <II9IAGM> ON1BMM JO21
064945 -10 2324  II8IHBC ON1BMM JO21

60m

UTC    dB Audio  Message
183415 -10  927  OZ/DG4BRT ON1BMM JO21
183445 -12  927  <II8IHBC> ON1BMM JO21
183530 -18 1160  ON1BMM II8IHBC -19 (x2)
183700 -15 1159  ON1BMM RR73; DL9BDR <...> -22
183700  -6 1776  ON1BMM IK4CBO JN54
183700  -8  480  ON1BMM EA1IOK IN62
183730  -8 1776  ON1BMM IK4CBO JN54
183730  -5  480  ON1BMM EA1IOK IN62 (x3)
202615 -16 1500  II7IABB ON1BMM JO21
202815 -19 1595  <II9IAGM> ON1BMM JO21
202830 -16 1660  ON1BMM II9IAGM +00
202845 -18 1595  II9IAGM ON1BMM R-09

80m

UTC    dB Audio  Message
210915  -2 1697  II6IGTO ON1BMM JO21
211000 -24 1696  ON1BMM II6IGTO -01
211015 -17 1697  II6IGTO ON1BMM R-25 (x3)
212230 -19 1696  ON1BMM II6IGTO -05
212715 -12 1697  II6IGTO ON1BMM JO21
212730 -21 1696  ON1BMM II6IGTO -13 (x2)
212815  -8 1697  II6IGTO ON1BMM R-25 (x2)
204630  +1 1673  ON1BMM II6IALU -12
194615  +2 2459  R3RRC/P ON1BMM JO21
194630  +3 2308  ON1BMM II8IHBC -15
194645  -3 2459  R3RRC/P ON1BMM R-18

20m

UTC    dB Audio  Message
100545  +8 1453  II7MGXX ON1BMM JO21 (x5)
100830 -24 1435  ON1BMM <...> -09
100845  +3 1453  II7MGXX ON1BMM R-13
112945 -14 2103  II7MGBT ON1BMM JO21 (x2)
113100  +3 2103  ON1BMM II7MGBT +02
113115 -14 2102  II7MGBT ON1BMM R+07
151700  -4 2102  <II7MGBR> ON1BMM JO21 (x3)
152045  -9  678  ON1BMM II7MGBR +08

10m

UTC    dB Audio  Message
211945  -9  658  ON1BMM SV2CLJ RR73

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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