WA4BRX — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: FM18

Receiver-side FT8 activity involving WA4BRX, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-23 and 2026-08-29.

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 25 FT8 messages attributed to WA4BRX as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (96%), followed by 20 m (4%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

80m · 24 20m · 1

First attributed message: 2026-06-23
Last attributed message: 2026-08-29 03:01 UTC

Observed FT8 message patterns

Attributed sample: 25 messages
Active dates: 2 UTC dates
Estimated median S/N: -15 dB
Estimated 10th-90th percentile: -19 to -14 dB
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 0.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with WA4BRX in decoded directed-looking exchanges:

F1PBZ · France ×2 EA2JE · Spain TF5B · Iceland 9A5E · Croatia DK5WL · Fed. Rep. of Germany DO1ID · Fed. Rep. of Germany F8TRT · France IQ4JO · Italy K8FER · United States KM4RAA · United States SP6GCU · Poland

Most frequent locator attributed to WA4BRX

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: FM18 · 12 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,390 km (approx.)
Last such locator decoded: 2026-08-29 03:01 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	WA4BRX S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-12 00:38	40m	- / -	WV2B	-10 / -	3	Partial capture
08-29 03:06	80m	- / -	DO9BAU	+6 / -	2	Partial capture
08-29 03:02	80m	- / -	DO9BAU	+6 / -	2	Partial capture
08-29 03:02	80m	- / -	F5RRS	-1 / -	3	Partial capture
08-29 03:01	80m	- / -	IZ8VYU	+2 / -	3	Partial capture
08-29 02:59	80m	- / -17	IQ4JO	+4 / -	3	✓ Closing fragment
08-29 02:57	80m	- / -	OK1UOZ	+9 / -	18	Partial capture
08-29 02:55	80m	- / -	CT3MD	-4 / -	2	Partial capture
08-29 02:51	80m	- / -10	F8TRT	+6 / -	3	✓ Closing fragment
08-29 02:50	80m	- / -	DL3SC	+1 / -	2	Partial capture
08-29 02:49	80m	-12 / -11	F1PBZ	+9 / -	3	✓ Closing observed
08-29 02:47	80m	- / -	OK1JMB	+16 / -	2	Partial capture
08-29 02:47	80m	-15 / -13	SP6GCU	+18 / -24	3	✓ Full exchange observed
08-29 02:47	80m	- / -	IW9FRA	-14 / -	8	Partial capture
08-29 02:46	80m	-14 / -	KM4RAA	- / -10	2	✓ Closing fragment
08-29 02:43	80m	-14 / -13	9A5E	+12 / -	6	✓ Closing observed
08-29 02:42	80m	- / -	OK1UOZ	+12 / -	19	Partial capture
08-29 02:41	80m	- / -	CT3MD	-2 / -	4	Partial capture
08-29 02:40	80m	-16 / -	K8FER	- / -10	3	✓ Closing fragment
08-29 02:38	80m	- / -19	F1PBZ	+8 / -	3	Partial capture
08-29 02:37	80m	-15 / -17	DO1ID	+8 / -15	13	✓ Full exchange observed
08-29 02:36	80m	- / -19	DK5WL	+9 / -	3	✓ Closing fragment
08-22 23:00	40m	- / -	DC5SWL	-10 / -	8	Partial capture
08-22 23:00	40m	- / -13	IW9FRA	-18 / -	14	Partial capture
08-22 22:59	40m	- / +4	EA7FPF	+5 / -	3	Partial capture
08-22 22:58	40m	- / -24	R2FDU	-6 / -	2	Partial capture
08-22 22:56	40m	- / -	G8KBH	-9 / -	3	Partial capture
08-22 22:54	40m	- / -	IK4LZH	-6 / -	4	Partial capture
08-22 22:54	40m	- / -	LZ3CB	-2 / -	4	Partial capture
08-22 22:53	40m	- / -	F1IQH	-12 / -	3	Partial capture
08-22 22:30	40m	- / -12	F1PBZ	-1 / -	2	Partial capture
08-11 03:13	80m	- / -17	DL1RWN	+6 / -	2	Partial capture
07-21 06:28	20m	- / -	G4CFS	-4 / -	3	Partial capture
07-21 06:28	20m	- / -	PD0DDA	-13 / -	11	Partial capture
07-21 06:18	20m	- / -8	G4SJX	-15 / -	3	Partial capture
07-09 22:16	20m	- / -4	EA1AA	-3 / -	16	Partial capture
07-09 10:54	20m	- / -	G0RVY	-2 / -	3	Partial capture
07-09 10:53	20m	- / -17	F4FSY	-11 / -	3	Partial capture
07-08 00:26	40m	- / -	F5PBG	-13 / -	3	Partial capture
06-29 10:12	20m	- / -	GJ0KYZ	-16 / -	3	Partial capture
06-23 22:00	20m	- / -15	EA2JE	-20 / -	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
230245 -11 2067  WA4BRX DC5SWL JN39
230315 -15 1915  WA4BRX IW9FRA JM68
230315 -12 2068  WA4BRX DC5SWL JN39
230345 -15 1915  WA4BRX IW9FRA JM68
230345  -8 2068  WA4BRX DC5SWL JN39
230415 -24 1915  WA4BRX IW9FRA R-13 (x6)
003700 -22 1841  WA4BRX N1NRL -10
003800  -9  670  WA4BRX WV2B FM05 (x3)

80m

UTC    dB Audio  Message
030215  +2 1891  WA4BRX IZ8VYU JN71
030215  -1 1962  WA4BRX F5RRS JN36
030215  +4 2102  WA4BRX DO9BAU JO62
030245  +7 1000  WA4BRX OK1UOZ JO70
030245  -4 1962  WA4BRX F5RRS JN36
030345 +11 1000  WA4BRX OK1UOZ JO70
030345  +3 1962  WA4BRX F5RRS JN36
030345  +7 2102  WA4BRX DO9BAU JO62
030445 +10 1000  WA4BRX OK1UOZ JO70 (x4)
030615  +7 2102  WA4BRX DO9BAU JO62
030645 +11 1000  WA4BRX OK1UOZ JO70
030645  +4 2102  WA4BRX DO9BAU JO62

20m

UTC    dB Audio  Message
062830 -11 1076  WA4BRX PD0DDA JO22
062830  -4 2954  WA4BRX G4CFS IO91
062900 -12 1075  WA4BRX PD0DDA JO22
062900  -6 2954  WA4BRX G4CFS IO91
062900 -18  941  WA4BRX EA3IDY RRR
062930 -17 1075  WA4BRX PD0DDA JO22 (x8)
010900  -8 2785  WA4BRX HG0NPJ -01
011200 -14 1072  WA4BRX 7Z1DM -16

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