AC3MW — 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: United States Most frequent locator attributed to this token: FM19

Receiver-side FT8 activity involving AC3MW, decoded by SO8OO in southeastern Poland. 33 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-22.

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 33 FT8 messages attributed to AC3MW as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (61%), followed by 20 m (39%). Several six-hour UTC windows tied for the largest share (100%), 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

33
Messages attributed
9
UTC dates decoded
16
Active 15-min windows
-14 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-09-22 23:46 UTC

Observed FT8 message patterns

Attributed sample
33 messages
Active dates
9 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-21 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 11.

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.

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 AC3MW

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
FM19 · 11 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,310 km (approx.)
Last such locator decoded
2026-09-22 23:46 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 UTCBandAC3MW S/NCounterpartCounterpart S/NMsgsCapture
09-22 02:24 40m -18 / - W9MDM - / +7 2 ✓ Closing fragment
09-22 00:46 40m -8 / - AD9DO - / +4 2 ✓ Closing fragment
09-22 00:19 40m - / - M7SYR +2 / - 2 Partial capture
09-07 01:15 40m - / -21 YO4NF -4 / - 2 Partial capture
09-06 00:26 40m -20 / +2 KP4COD -17 / -7 2 Partial capture
09-04 01:52 40m -16 / +3 ON3ANY +12 / -15 3 Partial capture
09-04 01:41 40m -16 / -19 PE1NPS -5 / -20 7 ✓ Full exchange observed
09-04 01:39 40m -20 / - KW9Q - / +4 2 Partial capture
09-04 01:21 40m -22 / - N8CDY - / -5 2 Partial capture
08-10 01:41 40m - / - F5OYA/P -18 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m
UTC    dB Audio  Message
011615  -3  874  AC3MW YO4NF -21
001845 -14  583  N4UCU AC3MW 73
001900  +3 2634  AC3MW M7SYR IO91 (x2)
001945  -9 2822  OK4FX AC3MW RR73
003645 -23 1363  KM4KAF AC3MW FM19
003800  -3 1363  AC3MW PD0DDA JO22
004600  -8 2850  AD9DO AC3MW R+04 (x2)
022300 -18 1068  K9NOX AC3MW 73
022430 -18  839  W9MDM AC3MW +07 (x2)
022815 -14  839  N9JYJ AC3MW 73
022945 -17  839  SP7NC AC3MW RR73
234615 -13  740  KW4LU AC3MW FM19
20m
UTC    dB Audio  Message
003200 -21 2112  AC3MW HB9TIH 73

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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