BX4AP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Taiwan Most frequent locator attributed to this token: PL04

Receiver-side FT8 activity involving BX4AP, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-10.

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 29 FT8 messages attributed to BX4AP as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (97%), followed by 40 m (3%). Several six-hour UTC windows tied for the largest share (83%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 1 20m · 28

First attributed message: 2026-06-06
Last attributed message: 2026-09-10 16:22 UTC

Observed FT8 message patterns

Attributed sample: 29 messages
Active dates: 5 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -19 to -7 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 4.

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 BX4AP in decoded directed-looking exchanges:

SV2HTW · Greece ×2 9A4V · Croatia A92GE · Bahrain DK9KW · Fed. Rep. of Germany EA3AKY · Spain EC5K · Spain F6IRG · France IK2GAU · Italy S56GD · Slovenia CN2DX · Morocco DK5CW · Fed. Rep. of Germany EA7IX · Spain

Most frequent locator attributed to BX4AP

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: PL04 · 21 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,570 km (approx.)
Last such locator decoded: 2026-08-30 14:46 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	BX4AP S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 17:18	80m	- / -	IV3IRO	+6 / -	13	Partial capture
09-17 16:34	80m	- / -	IV3IRO	+8 / -	6	Partial capture
09-17 16:25	80m	- / -	IV3IRO	+8 / -	5	Partial capture
09-17 16:24	80m	- / -	OH2BGD	-3 / -	4	Partial capture
09-17 16:16	80m	- / -	OH2BGD	0 / -	4	Partial capture
09-17 16:12	80m	- / -8	LY7M	+2 / -	2	✓ Closing fragment
09-14 16:33	80m	- / -	R2SDZ	-9 / -	4	Partial capture
09-14 16:25	80m	- / -	R2SDZ	-16 / -	4	Partial capture
09-10 18:40	80m	- / -	YU1FW	+10 / -	5	Partial capture
09-10 17:57	80m	- / -20	DJ7M	+10 / -	3	✓ Closing fragment
09-10 17:44	80m	- / -	DJ7M	+21 / -	5	Partial capture
09-10 17:34	80m	- / -22	DK7ZT	+1 / -	5	Partial capture
09-10 17:33	80m	- / -13	OK1YQ	+20 / -	2	✓ Closing fragment
09-10 16:31	40m	- / -	DB1BW	+1 / -	9	Partial capture
09-10 16:25	40m	- / -14	OZ9FF	+3 / -	3	✓ Closing fragment
09-07 20:33	40m	- / -	YO8VV	-17 / -	3	Partial capture
09-07 20:32	40m	- / -24	EA8UP	-4 / -	3	✓ Closing fragment
09-07 20:00	80m	- / -	DJ7M	+15 / -	9	Partial capture
09-07 20:00	80m	- / -10	UX5UO	+14 / -	4	✓ Closing fragment
09-06 17:59	80m	- / -	OH6NIO	-4 / -	6	Partial capture
09-06 17:09	80m	- / -15	OH3NAQ	-11 / -	2	✓ Closing fragment
09-06 15:18	80m	- / -	UA4FKT	-16 / -	2	✓ Closing fragment
08-30 14:46	20m	-17 / -	SQ9LDE	- / -	2	✓ Closing fragment
08-30 14:44	20m	- / -	UN7BCF	-7 / -	2	Partial capture
08-30 14:41	20m	-16 / -12	G4UJS	+2 / -16	6	✓ Full exchange observed
08-30 14:38	20m	-18 / -	T77R	- / -	4	Partial capture
08-30 14:36	20m	-18 / -	OE5EYM	-9 / -21	3	✓ Closing observed
08-30 08:08	10m	- / -4	9A4V	-6 / -	2	✓ Closing fragment
08-28 08:54	10m	- / -7	IK2GAU	+6 / -	6	✓ Closing fragment
08-28 08:04	10m	- / -26	A92GE	-4 / -	3	✓ Closing fragment
08-28 07:46	10m	- / -8	F6IRG	-5 / -	5	✓ Closing fragment
08-18 08:11	10m	- / -13	SV2HTW	-6 / -	3	✓ Closing fragment
08-18 08:05	10m	- / -	IU2IKT	-14 / -	4	Partial capture
08-17 17:01	40m	- / -11	SP6JIU	+13 / -	5	✓ Closing fragment
08-17 16:56	40m	- / -19	LY1DY	-11 / -	3	✓ Closing fragment
08-17 16:55	40m	- / -11	UD8S	-18 / -	2	✓ Closing fragment
08-17 16:53	40m	- / -18	OE3KLU	+8 / -	3	✓ Closing fragment
08-17 16:44	40m	- / -	LY1DY	-13 / -	3	Partial capture
08-17 16:40	40m	- / -	UT5ZC	-13 / -	3	✓ Closing fragment
08-12 17:32	20m	- / -13	RA3TRR	-8 / -	2	✓ Closing fragment
08-12 17:15	20m	- / -17	EA7IX	-12 / -	4	✓ Closing fragment
08-12 17:14	20m	- / -6	DK5CW	-12 / -	2	✓ Closing fragment
08-12 17:09	20m	- / -6	EG5MYC	-17 / -	2	✓ Closing fragment
08-11 14:27	20m	- / -13	YO9PH	-10 / -	2	✓ Closing fragment
08-09 13:37	20m	- / -	EW1MN	-4 / -	8	Partial capture
08-02 07:53	10m	- / -12	EC5K	-12 / -	2	✓ Closing fragment
07-27 15:34	20m	- / -	IU1WKA	-18 / -	2	Partial capture
07-24 15:28	20m	- / -23	R3KCW	-5 / -	3	✓ Closing fragment
07-19 09:56	10m	- / -13	DK9KW	-4 / -	4	✓ Closing fragment
07-18 17:17	40m	- / -24	R7DX	-14 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
163615  +5 2911  BX4AP IV3IRO JN65 (x15)

40m

UTC    dB Audio  Message
162200 -14  590  BG2DIH BX4AP -20
162215 -13 2493  BX4AP TF4M HP85
162515  +2 2314  BX4AP OZ9FF -14 (x3)
163115  -8 1905  BX4AP DK7ZT -12
163115  +0 1728  BX4AP DB1BW JO62 (x9)

20m

UTC    dB Audio  Message
143715  -9 2739  BX4AP OE5EYM RR73
143830 -19 2120  T77R BX4AP PL04 (x4)
144130 -15 2120  G4UJS BX4AP PL04 (x2)
144215  +2 2121  BX4AP G4UJS -12
144230 -17 2120  G4UJS BX4AP R-16
144245  +3 2120  BX4AP G4UJS RR73
144300 -17 2120  G4UJS BX4AP 73
144445  -8 2313  BX4AP UN7BCF MO43 (x2)
144600 -19 2120  SQ9LDE BX4AP PL04 (x2)

10m

UTC    dB Audio  Message
074730  -6 1654  BX4AP F6IRG JN25 (x3)
075530  -7  416  BX4AP DK8MM -16
080445  -5  521  BX4AP A92GE LL56 (x3)
085445  +4 1176  BX4AP IK2GAU JN45 (x6)
080830  +0 1844  BX4AP 9A4V -04 (x2)

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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