ON4BJP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Belgium Most frequent locator attributed to this token: JO20

Receiver-side FT8 activity involving ON4BJP, decoded by SO8OO in southeastern Poland. 121 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-07-28.

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 121 FT8 messages attributed to ON4BJP as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (55%), followed by 10 m (39%) and 80 m (3%). Several six-hour UTC windows tied for the largest share (57%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

121

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 4 40m · 3 20m · 67 10m · 47

First attributed message: 2026-06-07
Last attributed message: 2026-07-28 19:50 UTC

Observed FT8 message patterns

Attributed sample: 121 messages
Active dates: 9 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -20 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 36, moderate (-15 to -9 dB) 51, strong (≥ -8 dB) 34.

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 ON4BJP in decoded directed-looking exchanges:

EA1CQ · Spain EA1FLB · Spain F5ADE · France F6EXV · France OZ1DYI · Denmark 4X1YA · Israel CR7BUJ · Portugal IK4TVP · Italy RD7P · European Russia S55OO · Slovenia TA3F · Asiatic Turkey SP7TF · Poland

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 ON4BJP

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: JO20 · 92 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,194 km (approx.)
Last such locator decoded: 2026-07-28 19:50 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	ON4BJP S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-28 18:00	20m	- / -	TA3NK	-13 / -	5	Partial capture
08-28 17:59	20m	- / -	UT4QM	-4 / -	2	Partial capture
07-28 19:49	20m	-14 / -	A61DD	- / -	2	Partial capture
07-21 19:23	20m	- / -6	F1PBZ	+2 / -	2	Partial capture
07-17 20:11	20m	- / -1	IK4TVP	-4 / -	6	✓ Closing fragment
07-14 17:37	20m	-12 / -	RD7P	-16 / -	2	✓ Closing observed
07-14 13:48	20m	- / -	IQ4JO	+1 / -	2	Partial capture
07-12 16:42	20m	-15 / -	EA6NB	- / -	5	Partial capture
07-12 16:36	20m	-14 / -	E25XTL	- / -	2	Partial capture
07-12 14:38	20m	- / -	R8AGW	-21 / -	2	Partial capture
07-11 21:15	20m	- / -	SV5BYP	-23 / -	2	Partial capture
07-11 20:51	20m	- / -8	4X1YA	+8 / -	2	✓ Closing fragment
07-08 11:56	10m	- / -	IU3RRX	-21 / -	2	Partial capture
07-07 22:35	80m	- / -	DO5HOK	+6 / -	2	Partial capture
07-07 22:35	80m	- / -	UX7QV	+9 / -	7	Partial capture
07-07 21:43	20m	-14 / 0	A61SD	-16 / -10	2	Partial capture
07-07 21:40	20m	-21 / -	S55OO	- / +3	2	✓ Closing fragment
07-07 21:24	40m	- / -	DL1UDO	-20 / -	2	Partial capture
07-07 21:18	40m	-21 / -	UN8DSW	- / -15	2	✓ Closing fragment
07-07 21:14	80m	- / -9	DO9JTR	-6 / -	6	Partial capture
07-07 21:13	40m	- / -21	SP7TF	-14 / -	2	✓ Closing fragment
07-07 08:49	10m	- / -24	F5ADE	-8 / -	2	✓ Closing fragment
06-29 13:13	10m	-14 / -	DK0PB	- / -	2	Partial capture
06-29 13:11	10m	-13 / -	EA1CQ	- / -13	2	✓ Closing fragment
06-29 13:06	10m	-15 / -	HA1BF	- / -	3	Partial capture
06-29 13:02	10m	-12 / -	F6EXV	-15 / -1	3	✓ Closing observed
06-29 12:56	10m	-16 / +6	<...>	-13 / -2	2	Partial capture
06-29 12:51	10m	- / -14	OZ1DYI	-12 / -	3	✓ Closing fragment
06-29 12:37	10m	-14 / -3	EA1FLB	-19 / -	2	✓ Closing observed
06-29 12:32	10m	- / -	LZ4VR	-9 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
151630 -20 1247  ON4BJP TK4QP -12
151745 -15 1017  ES6RMR ON4BJP R-24
192315  +7 2826  ON4BJP F1PBZ -06 (x2)
194445 -19 1555  CQ ON4BJP JO20
194945 -14 1555  A61DD ON4BJP JO20 (x2)
175015  -7  988  ON4BJP TA3F 73
175900  -2  995  ON4BJP UT4QM KN77 (x2)
180000 -12  988  ON4BJP TA3NK KM39 (x5)

10m

UTC    dB Audio  Message
130615 -15  926  A71UN ON4BJP JO20
130645 -14  926  HA1BF ON4BJP JO20 (x3)
131145 -13  926  EA1CQ ON4BJP R-13 (x2)
131315 -13  926  CQ ON4BJP JO20
131345 -15  926  DK0PB ON4BJP JO20 (x2)
131545 -15  926  SV1CQN ON4BJP JO20
084915  -6  957  ON4BJP F5ADE -24 (x2)
093415 -19 2176  ON4BJP EA5DKT -04
115645 -20 2130  ON4BJP IU3RRX JN55 (x2)

80m

UTC    dB Audio  Message
211530  -3 2026  ON4BJP DO9JTR -09 (x5)
223530 -19 2026  CQ ON4BJP JO20
223545  +8 2026  ON4BJP UX7QV KN29
223545  +4  808  ON4BJP DO5HOK JO41
223615  +7 2027  ON4BJP UX7QV KN29
223615  +7  808  ON4BJP DO5HOK JO41
223645  +4 2026  ON4BJP UX7QV KN29 (x5)

40m

UTC    dB Audio  Message
211330 -14 2063  ON4BJP SP7TF -21 (x2)
211545 -21 2065  <...> ON4BJP JO20
211815 -22 2063  UN8DSW ON4BJP R-15 (x2)
212400 -19 1381  ON4BJP DL1UDO JO31
212430 -18 2053  ON4BJP OZ5AGJ R-10
212430 -20 1381  ON4BJP DL1UDO JO31
212530  -1 2883  ON4BJP DL1BBO JO43
212730 -20 1522  ON4BJP OZ5AGJ R-05

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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