BI1AFK — 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: China Most frequent locator attributed to this token: ON80

Receiver-side FT8 activity involving BI1AFK, decoded by SO8OO in southeastern Poland. 112 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-11-03.

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 112 FT8 messages attributed to BI1AFK as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (98%), followed by 40 m (2%). Several six-hour UTC windows tied for the largest share (79%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

112

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

40m · 2 20m · 110

First attributed message: 2026-06-13
Last attributed message: 2026-11-03 21:19 UTC

Observed FT8 message patterns

Attributed sample: 112 messages
Active dates: 7 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 32, moderate (-15 to -9 dB) 43, strong (≥ -8 dB) 37.

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 BI1AFK in decoded directed-looking exchanges:

DJ8RP · Fed. Rep. of Germany ×2 ON4AOI · Belgium ×2 R3KLE · European Russia ×2 R4AC · European Russia ×2 RX9ABI · Asiatic Russia ×2 OH7UE · Finland ×2 7Z1BM · Saudi Arabia 9A7W · Croatia 9K2ES · Kuwait BG0DAP · China BH8BMZ · China DF0DX · Fed. Rep. of Germany

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 BI1AFK

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: ON80 · 79 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 7,015 km (approx.)
Last such locator decoded: 2026-11-03 21:19 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	BI1AFK S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-04 20:19	40m	- / -19	ZL1RPC/F	+4 / -	2	Partial capture
11-04 17:41	40m	- / -17	RO2T	-4 / -	2	✓ Closing fragment
11-03 21:42	40m	- / -4	JA4DND	0 / -	2	✓ Closing fragment
11-03 21:37	40m	- / -	F6BHK	+4 / -	2	Partial capture
11-03 21:34	40m	- / +2	JA0MRW	-16 / -	2	✓ Closing fragment
11-03 21:19	40m	- / -	CT2GFJ	-5 / -	2	Partial capture
11-03 21:18	40m	- / -	IU5KYZ	-16 / -	2	Partial capture
10-29 22:47	40m	- / -18	WF2A	-7 / -	3	Partial capture
10-29 21:41	40m	- / -	EA7LIC	-10 / -	3	Partial capture
10-29 20:11	40m	- / -	F4BYA	+10 / -	4	Partial capture
10-29 19:36	40m	- / -21	M5BFL	+2 / -	2	✓ Closing fragment
10-29 19:20	40m	- / -15	ON6AA	+14 / -	4	✓ Closing fragment
10-29 19:13	40m	- / -10	UA3DTS	-4 / -	3	✓ Closing fragment
10-29 18:53	40m	- / -11	IK2YCW	+14 / -	2	Partial capture
10-29 18:26	40m	- / -	RN3YN	-8 / -	2	Partial capture
10-29 17:37	40m	- / -11	RA3AV	0 / -	2	✓ Closing fragment
10-29 17:21	40m	- / -	F4IFO	-1 / -	5	Partial capture
10-29 16:56	40m	- / -	F6EQZ	-4 / -	5	Partial capture
10-29 16:47	40m	- / -19	RZ1AS	-7 / -	3	✓ Closing fragment
10-29 16:41	40m	- / -20	RU3ACA	-2 / -	4	✓ Closing fragment
10-29 16:38	40m	- / -	DL6NDN	-1 / -	3	Partial capture
10-29 16:37	40m	- / -14	RC3D	+7 / -	3	✓ Closing fragment
10-29 16:32	40m	- / -18	UX2QX	+6 / -	3	Partial capture
10-29 15:58	40m	- / -15	UA3SCU	-10 / -	3	Partial capture
10-29 15:50	40m	- / -25	OT1A	+12 / -	6	Partial capture
10-29 15:15	40m	- / -3	OH7UE	-4 / -	2	✓ Closing fragment
10-29 13:26	40m	- / -9	OG5O	+4 / -	2	✓ Closing fragment
10-27 22:38	40m	- / -	F5PBG	-3 / -	2	Partial capture
10-27 21:50	40m	- / -18	4X5JK	-14 / -	3	Partial capture
10-27 21:47	40m	- / -	M0WOO	-8 / -	5	Partial capture
10-27 21:05	40m	- / -17	DC8RA	-11 / -	3	Partial capture
10-27 19:13	40m	- / -13	UA3DIB	+10 / -	2	✓ Closing fragment
10-27 18:22	40m	- / -13	ES6DO	+6 / -	2	✓ Closing fragment
10-27 18:00	40m	- / -14	RA3QM	0 / -	2	✓ Closing fragment
10-27 17:51	40m	- / -	PD2BA	-2 / -	2	Partial capture
10-27 17:50	40m	- / -9	HB9CZF	+9 / -	2	✓ Closing fragment
10-27 17:44	40m	- / -10	ON5EL	-6 / -	3	Partial capture
10-27 17:41	40m	- / -21	RA4LAG	-10 / -	4	Partial capture
10-27 17:40	40m	- / -20	F5OIH	+5 / -	3	✓ Closing fragment
10-27 17:23	40m	- / -16	UA3GPM	-10 / -	2	✓ Closing fragment
10-27 16:58	40m	- / -9	R4CBT	-14 / -	2	✓ Closing fragment
10-27 16:36	40m	- / -15	RA4ABI	-8 / -	3	✓ Closing fragment
10-22 23:28	40m	- / -	F5PBG	+1 / -	2	Partial capture
10-22 22:50	40m	- / -15	SV8OVJ	+9 / -	2	✓ Closing fragment
10-22 21:39	40m	- / +9	JA4DLF	-18 / -	2	✓ Closing fragment
10-22 19:07	40m	- / -18	RA6ABO	-11 / -	3	✓ Closing fragment
10-22 18:42	40m	- / -	RA4HG	-12 / -	2	✓ Closing fragment
10-22 17:46	40m	- / -16	UA3ZUX	+4 / -	2	✓ Closing fragment
10-22 17:32	40m	- / -16	R4GM	+1 / -	4	✓ Closing fragment
10-22 17:04	40m	- / -11	UA9SHH	-14 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
213445 -15 2083  BI1AFK JA0MRW +02 (x2)
213745  -5 1542  BI1AFK F6BHK JN24 (x2)
214215  -1  478  BI1AFK JA4DND -04 (x2)
154115 -14 1894  BI1AFK UA3RMH RR73
162730 -18 1781  BI1AFK RA3GK RR73
174115  -2  337  BI1AFK RO2T -17 (x2)
191630  -9  664  BI1AFK UB4FIV -15
194630 -17 1093  BI1AFK RW6B -15
201900  +5  590  BI1AFK ZL1RPC/F -19 (x2)
191030  -9  356  BI1AFK UW5ZM KN57

160m

UTC    dB Audio  Message
220745 -17 1004  BI1AFK DG5PW JO30

20m

UTC    dB Audio  Message
183845  +7 1978  BI1AFK UA3SNB -10 (x3)
185530 +10  504  BI1AFK EA2AA -03 (x2)
190045 +11 2961  BI1AFK DK6IM -18 (x5)
201445  -7 2542  BI1AFK SV2DGH -10 (x3)
202500 -14  622  BI1AFK 9K2ES -12 (x2)

60m

UTC    dB Audio  Message
200800  -5 2807  BI1AFK S58N -18

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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