F5BZB — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN03

Receiver-side FT8 activity involving F5BZB, decoded by SO8OO in southeastern Poland. 1,145 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 52 UTC dates in the available aggregate history. Observed between 2026-06-07 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 1,145 FT8 messages attributed to F5BZB as the transmitting token by decoded message structure across 52 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (40%), followed by 160 m (40%) and 40 m (10%). Most decodes (73%) 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 (79%); the estimated median was -1 dB.

Overview

1,145

Messages attributed

UTC dates decoded

191

Active 15-min windows

-1 dB

Estimated median S/N

Bands

160m · 453 80m · 461 60m · 49 40m · 118 20m · 36 10m · 28

First attributed message: 2026-06-07
Last attributed message: 2026-10-06 20:15 UTC

Observed FT8 message patterns

Attributed sample: 1,145 messages
Active dates: 52 UTC dates
Estimated median S/N: -1 dB
Estimated 10th-90th percentile: -12.3 to +10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 55, moderate (-15 to -9 dB) 183, strong (≥ -8 dB) 907.

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 F5BZB in decoded directed-looking exchanges:

KO3ZDE · United States ×2 N1WI · United States ×2 UG4L · European Russia ×2 RZ4FWA · European Russia ×2 R3QX · European Russia ×2 4L7T · Georgia AA1ZZ · United States EA3RO · Spain EA6LU · Balearic Islands FK8HC · New Caledonia JA0DAI · Japan JA8HYB · 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 F5BZB

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: JN03 · 616 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,732 km (approx.)
Last such locator decoded: 2026-10-06 20:15 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	F5BZB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-06 20:02	160m	- / -	DL9KM	-16 / -	6	Partial capture
10-06 20:02	160m	- / -	HA8EU	+7 / -	6	Partial capture
10-06 07:06	60m	-20 / -	ZL2AGY	- / -20	2	✓ Closing fragment
10-06 03:51	60m	-7 / -	9T0MD	- / -	2	Partial capture
10-06 03:48	160m	- / -	DL9KM	-13 / -	6	Partial capture
10-06 03:48	160m	+7 / -	K3EA	- / -17	2	✓ Closing fragment
10-06 03:22	60m	+1 / -	9T0MD	- / -26	31	Partial capture
10-05 05:40	80m	-13 / -	HK3G	- / -13	3	✓ Closing fragment
10-05 05:36	80m	- / -	DO4DXA	+2 / -	4	Partial capture
10-05 05:35	80m	- / -	F5MYK	-15 / -	3	Partial capture
10-05 05:34	80m	0 / -	AI5WW	- / -18	2	✓ Closing fragment
10-05 05:24	160m	- / -	DL9KM	-24 / -	7	Partial capture
10-04 16:27	80m	-7 / -15	R3HH	+7 / -	4	✓ Closing observed
10-04 16:26	80m	-1 / -18	RK6OQ	+6 / -16	5	✓ Full exchange observed
10-04 16:24	80m	-10 / -	UA9FMT	- / -	2	Partial capture
10-02 22:00	160m	+5 / -	VK6ABC	- / -18	3	✓ Closing fragment
10-02 21:54	160m	- / -	EB3DBR	-10 / -	4	Partial capture
10-02 21:54	160m	- / -	PE2AE	-6 / -	4	Partial capture
10-02 18:48	160m	+9 / -	JG3TRB	- / -18	3	Partial capture
10-02 18:45	160m	+3 / -	JI8AQC	- / -18	3	✓ Closing fragment
10-02 18:41	160m	+8 / -	JG3GCZ	- / -20	5	✓ Closing fragment
10-02 18:39	160m	+8 / -	JG3WCZ	- / -18	2	Partial capture
10-02 18:37	160m	- / -	HA8ZG	-9 / -	3	Partial capture
10-02 18:36	160m	+9 / -	JF8QNF	- / -16	2	✓ Closing fragment
10-02 18:35	160m	+4 / 0	R3PMV	-14 / -21	6	✓ Full exchange observed
10-02 18:32	160m	+7 / -	JA8HYB	- / -20	5	✓ Closing fragment
10-02 18:25	160m	- / -	HA8ZG	-11 / -	11	Partial capture
10-02 18:22	160m	+4 / -18	RA1N	+4 / -11	6	✓ Full exchange observed
10-02 18:21	160m	- / -18	SP4LIN	+10 / -	2	Partial capture
10-02 18:19	160m	-5 / -15	RM5P	-4 / -	3	✓ Closing observed
10-02 05:16	160m	-3 / -	K1BZM	- / -7	2	Partial capture
10-01 22:07	160m	+18 / -16	R8LCA	-21 / -16	4	✓ Full exchange observed
10-01 22:06	160m	- / -	DO1YFF	+4 / -	7	Partial capture
10-01 15:59	80m	-10 / -	RZ0SW	- / -16	4	Partial capture
10-01 05:15	60m	+6 / -	XE2SSB	- / -7	2	✓ Closing fragment
09-30 05:34	80m	- / -	DO7TTR	-5 / -	3	Partial capture
09-30 05:34	80m	-10 / -	PJ2/W4IPC	- / -7	3	Partial capture
09-29 21:01	160m	+8 / -	RA3WPF	- / -20	2	Partial capture
09-29 20:37	160m	- / -	EB3DBR	-4 / -	2	Partial capture
09-29 20:37	160m	- / -	IU5HIU	-7 / -	2	Partial capture
09-29 20:36	160m	- / -	DL9KM	-9 / -	7	Partial capture
09-29 20:36	160m	-5 / -20	RA5AD	+8 / -16	6	✓ Full exchange observed
09-29 20:29	80m	- / -	DL9KM	-2 / -	6	Partial capture
09-29 20:29	80m	0 / -20	R3QX	-14 / -15	6	✓ Full exchange observed
09-29 20:25	80m	-2 / -11	UN0GY	-20 / -	2	✓ Closing observed
09-29 20:20	80m	-1 / -	R6FGF	- / -12	2	✓ Closing fragment
09-29 20:15	80m	-11 / -16	JE7JDL	-24 / -14	4	✓ Full exchange observed
09-29 05:47	160m	-7 / -	AA1ZZ	- / -18	2	✓ Closing fragment
09-28 21:44	80m	- / -	DO9BAU	+8 / -	13	Partial capture
09-28 21:44	80m	- / -	SP1MGM	+17 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
200315  +9  758  F5BZB HA8EU KN06
200315 -19 1357  F5BZB DL9KM JN68
200345  +2  758  F5BZB HA8EU KN06
200345 -19 1357  F5BZB DL9KM JN68
200415  +0  758  F5BZB HA8EU KN06
200415 -20 1357  F5BZB DL9KM JN68
200445 +10  758  F5BZB HA8EU KN06
200445 -16 1357  F5BZB DL9KM JN68
200515 +12  758  F5BZB HA8EU KN06
200515  -9 1357  F5BZB DL9KM JN68
201345  -2  772  CQ DX F5BZB JN03 (x4)
201600  -9 1221  F5BZB UT1EI KN68

60m

UTC    dB Audio  Message
033645  -1  859  9T0MD F5BZB JN03 (x12)
070615 -19 1805  ZL2AGY F5BZB -20 (x2)
070715 -17  990  HI3QMT F5BZB -10

80m

UTC    dB Audio  Message
053445  -1 2676  AI5WW F5BZB RR73
053500 -16 2602  F5BZB F5MYK IN97
053530  -9 1502  F5BZB DO9YU JO41
053545  -1 2158  N0BUZ F5BZB RR73
053600 -14 2603  F5BZB F5MYK IN97
053600  +5  506  F5BZB DO4DXA JN58
053630 -16 2601  F5BZB F5MYK IN97
053630  +3  506  F5BZB DO4DXA JN58 (x2)
053715  -8  676  F5BZB YO9HP -06
053730  +2  506  F5BZB DO4DXA JN58
054000  -3 1804  HK3G F5BZB -13 (x2)
054215  -6 2084  F5BZB G0BLB IO81
054230 -15 1805  HK3G F5BZB RR73

40m

UTC    dB Audio  Message
163315 +19 2815  F5BZB US2YW KN28
163345  -4  835  RX6ABW F5BZB RR73
163400 -12  836  F5BZB RX6ABW 73
163515  -4  492  R3HX F5BZB -09
163530 -10  493  F5BZB R3HX R-17
163545  +0  493  R3HX F5BZB RR73
164315  +3 2842  RO3ZR F5BZB -08 (x2)
164400 -11 2842  F5BZB RO3ZR 73
164430 -12 2057  RM6OG F5BZB -13
164600 -17 1331  RN3TT F5BZB -10 (x2)
164645 -14 1330  F5BZB RN3TT 73
165330 -15 1640  RO6OP F5BZB -09
151945  -5 2734  YD1EQN F5BZB -17

20m

UTC    dB Audio  Message
201415  +2 3133  RV9CX/0 F5BZB R-18 (x15)

10m

UTC    dB Audio  Message
074915  -2  713  CQ DX F5BZB JN03 (x4)
192645  -4  853  RI1FJL F5BZB JN03 (x6)
075645 -22 1651  BG0EMF F5BZB -04
082845  -7 2989  CQ DX F5BZB JN03
092730 -12  721  JA4FKX F5BZB -01

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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