F8BUI — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN18

Receiver-side FT8 activity involving F8BUI, decoded by SO8OO in southeastern Poland. 114 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-24 and 2026-10-21.

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 114 FT8 messages attributed to F8BUI as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (61%), followed by 60 m (14%) and 20 m (14%). Most decodes (84%) fell within the six-hour window 20:00-02:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (66%); the estimated median was -6 dB.

Overview

114

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 70 60m · 16 40m · 12 20m · 16

First attributed message: 2026-07-24
Last attributed message: 2026-10-21 22:54 UTC

Observed FT8 message patterns

Attributed sample: 114 messages
Active dates: 9 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -20 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 19, strong (≥ -8 dB) 75.

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 F8BUI in decoded directed-looking exchanges:

DK8HC · Fed. Rep. of Germany ×2 9J2FI · Zambia US5HL · Ukraine IU8RFW · Italy JY5IB · Jordan YO9HP · Romania 4L7T · Georgia DL7FD · Fed. Rep. of Germany EA4D · Spain MM0HVU · Scotland MM5DWW · Scotland YL3FW · Latvia

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 F8BUI

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: JN18 · 51 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,370 km (approx.)
Last such locator decoded: 2026-10-21 22:53 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	F8BUI S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 22:53	40m	+2 / -	IU8RFW	- / -8	3	✓ Closing fragment
10-21 22:51	40m	-2 / -	EY7BP	- / -	2	Partial capture
10-21 22:49	40m	-5 / -	JY5IB	- / -11	3	✓ Closing fragment
10-12 21:35	60m	-22 / -	MM0HVU	-12 / -	2	✓ Closing observed
10-12 21:32	60m	-15 / -	4L7T	- / -14	3	✓ Closing fragment
10-12 21:30	60m	-14 / -	YL3FW	- / -8	3	✓ Closing fragment
10-12 21:27	60m	-6 / -	DL7FD	- / -13	2	✓ Closing fragment
10-12 21:27	60m	-8 / -	T77RN	- / -21	2	Partial capture
10-12 21:25	60m	-15 / -7	EA4D	-15 / -4	5	✓ Full exchange observed
10-12 21:24	60m	-7 / -	MM5DWW	- / -15	2	✓ Closing fragment
10-09 06:38	80m	-19 / -	F5PBG	- / 0	2	Partial capture
10-09 06:35	80m	-20 / -	ZL3IO	- / -8	4	✓ Closing fragment
10-06 01:08	80m	0 / -3	F5RMK	-6 / -4	5	✓ Full exchange observed
10-06 00:59	80m	-14 / -16	DK8HC	+10 / -1	5	✓ Full exchange observed
10-06 00:56	80m	-4 / -	C5R	- / -22	6	✓ Closing fragment
10-06 00:53	80m	+3 / -24	Z61DX	-2 / -4	7	✓ Full exchange observed
10-06 00:51	80m	0 / -	TA4SSK	- / -15	3	✓ Closing fragment
10-06 00:48	80m	0 / +7	PC2J	-6 / 0	6	✓ Full exchange observed
10-06 00:47	80m	-2 / -	TA4SSK	- / -12	2	Partial capture
10-06 00:46	80m	0 / -	UA3VVA	-4 / -7	3	✓ Closing observed
10-06 00:44	80m	-1 / -16	UX7QV	-8 / -2	3	✓ Full exchange observed
10-06 00:43	80m	- / -3	ON4MAP	-10 / -	2	Partial capture
10-06 00:40	80m	-2 / -	Z61DX	- / -	3	Partial capture
08-29 21:47	80m	-4 / -	YC2LAB	- / -	2	Partial capture
08-29 21:41	80m	-10 / -6	DL9KM	-12 / -5	7	✓ Full exchange observed
08-29 21:40	80m	-2 / -	F6FHZ	- / -10	3	✓ Closing fragment
08-29 21:40	80m	-10 / -	G8OO	-8 / +3	6	✓ Closing observed
08-21 20:52	20m	-13 / -	TT1GD	- / -	3	Partial capture
08-21 20:47	20m	-11 / -9	US5HL	-1 / -	3	✓ Closing observed
08-01 18:17	20m	-4 / -	LA6VQ	- / -7	2	Partial capture
08-01 18:15	20m	-5 / -	EH5FJI	- / -	2	Partial capture
08-01 18:13	20m	-6 / -	9J2FI	- / -	2	✓ Closing fragment
08-01 18:11	20m	-1 / -	BH2WTV	- / -	3	Partial capture
08-01 18:08	20m	-5 / -	TJ1GD/P	- / -14	2	Partial capture
07-28 22:41	40m	- / -7	YO9HP	-9 / -	2	✓ Closing fragment
07-28 22:33	40m	- / 0	R2AL	-6 / -	10	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
223845  -6 1626  F8BUI R2AL R-13
224100 -10 1837  F8BUI YO9HP -07 (x2)
224345 -22 1706  TA3ZZ F8BUI R-11
224945  -6 1965  JY5IB F8BUI JN18 (x3)
225115  -4 1965  EY7BP F8BUI JN18 (x2)
225215  +0 1965  CQ F8BUI JN18                         a1 (x3)
225345  +3 1965  IU8RFW F8BUI -08 (x3)

60m

UTC    dB Audio  Message
212630 -12 1258  F8BUI EA4D RR73
212645  -7 1456  EA4D F8BUI 73
212715 -11 1456  T77RN F8BUI JN18
212745  -6 1456  DL7FD F8BUI -13 (x2)
212845  -6 1456  T77RN F8BUI R-21
213000 -21 1456  F8BUI EB3JT R-07
213045 -13 1456  YL3FW F8BUI JN18 (x3)
213215 -14 1456  4L7T F8BUI JN18 (x3)
213545 -22 1457  MM0HVU F8BUI JN18
213630 -12  930  F8BUI MM0HVU RR73

80m

UTC    dB Audio  Message
005930  +9  565  F8BUI DK8HC R-16
005945 -11 1339  DK8HC F8BUI RR73
010000 +13  565  F8BUI DK8HC 73
010800  -6 1758  F5RMK F8BUI JN18
010815  -7 1209  F8BUI F5RMK -03
010830  +6 1758  F5RMK F8BUI R-04
010845  -5 1209  F8BUI F5RMK RR73
010900  +0 1757  F5RMK F8BUI 73
063145 -22 1302  ZL3IO F8BUI JN18 (x5)
063815 -18 1302  F5PBG F8BUI +00 (x2)

20m

UTC    dB Audio  Message
181145  -2 1026  BH2WTV F8BUI JN18 (x2)
181345  -7 1026  9J2FI F8BUI JN18 (x2)
181545  -5 1025  EH5FJI F8BUI JN18 (x2)
181700  -6 1025  LA6VQ F8BUI JN18 (x2)
204745 -11 1248  US5HL F8BUI JN18
204800  -4 2905  F8BUI US5HL -09 (x2)
205000 -21 1248  R3BCK F8BUI JN18
205215 -12 1277  TT1GD F8BUI JN18 (x3)

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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