AC0A — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM28

Receiver-side FT8 activity involving AC0A, decoded by SO8OO in southeastern Poland. 4 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-14 and 2026-08-28.

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 4 FT8 messages attributed to AC0A as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The available sample contains attributed decodes on 40 m (75%) and 80 m (25%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

S/N pattern not inferred

Bands

80m · 1 40m · 3

First attributed message: 2026-08-14
Last attributed message: 2026-08-28 02:46 UTC

Observed FT8 message patterns

Attributed sample: 4 messages
Active dates: 2 UTC dates
S/N summary: Too few decodes
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

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 AC0A in decoded directed-looking exchanges:

CT2HEX · Portugal ×2 GM1TGY · Scotland ×2 HI8UD · Dominican Republic RA4LFN · European Russia DL1RWN · Fed. Rep. of Germany EA7R · Spain EI2IXB · Ireland EI9KF · Ireland F5PBG · France IT9VCE · Sicily LZ1KU · Bulgaria PA4PA · Netherlands

Most frequent locator attributed to AC0A

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: EM28 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,402 km (approx.)
Last such locator decoded: 2026-08-28 02:46 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	AC0A S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 23:16	40m	- / -14	DK7ZT	-17 / -	3	Partial capture
09-05 00:35	40m	- / -8	YO9HP	-18 / -	3	✓ Closing fragment
09-04 02:06	40m	- / -	G5TV	+4 / -	3	Partial capture
09-04 02:06	40m	- / -8	IT9VCE	+1 / -	5	✓ Closing fragment
09-03 00:45	40m	- / -16	GM6URC	-6 / -	2	Partial capture
09-03 00:10	40m	- / -	F5PBG	-4 / -	2	✓ Closing fragment
09-03 00:08	40m	- / -14	GM1TGY	-10 / -	4	✓ Closing fragment
08-28 23:19	40m	- / -14	EA7R	-4 / -	2	✓ Closing fragment
08-28 02:49	40m	- / -20	4L8A	0 / -	2	Partial capture
08-28 00:24	40m	- / -6	EI9KF	-12 / -	3	✓ Closing fragment
08-28 00:14	40m	- / -3	CT2HEX	-10 / -	2	✓ Closing fragment
08-22 01:51	40m	- / -14	EI2IXB	-10 / -	4	Partial capture
08-22 01:41	40m	- / -10	PA4PA	+4 / -	2	✓ Closing fragment
08-20 22:48	40m	- / -5	VP2MAA	-6 / -	2	✓ Closing fragment
08-18 23:45	40m	- / -10	CT2HEX	-22 / -	2	✓ Closing fragment
08-04 22:52	20m	- / 0	HI8UD	-13 / -	2	✓ Closing fragment
07-26 00:51	40m	- / -17	DL1RWN	+14 / -	5	✓ Closing fragment
07-26 00:49	40m	- / -23	LZ1KU	-1 / -	2	✓ Closing fragment
07-24 01:34	80m	- / -	HB9CXZ	+12 / -	5	Partial capture
07-24 00:52	80m	- / -4	WF7I	-14 / -	2	✓ Closing fragment
07-09 01:21	80m	- / -13	HI3A	-21 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
020645  -2  954  AC0A IT9VCE -08
020645  +2  657  AC0A G5TV IO93
020715  -5  954  AC0A IT9VCE -08
020715  +7  657  AC0A G5TV IO93
020745  +4  954  AC0A IT9VCE RR73
020745  +2  657  AC0A G5TV IO93
020815  +6  954  AC0A IT9VCE RR73 (x2)
003530 -19 1991  AC0A YO9HP -08 (x3)
011430 -14 1609  AC0A SO100PKP +01
231645 -13 1906  AC0A DK7ZT -14 (x3)

80m

UTC    dB Audio  Message
003930 -24 1418  AC0A WD4DAN RR73
010615  -9 2760  AC0A KN0BLE RR73
011115 -24 1802  AC0A KJ4QVJ RRR
012115 -20  571  AC0A HI3A -13 (x2)
005200 -14 2273  AC0A WF7I -04 (x2)
011930 -15 2560  AC0A N8OQ +01
013445 +12 2354  AC0A HB9CXZ JN46 (x5)
012815  -3 2866  M0LOW AC0A R-24

20m

UTC    dB Audio  Message
224200 -20 2208  AC0A RA4LFN 73
225200 -14  905  AC0A HI8UD +00 (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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