KC8ACO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EN73

Receiver-side FT8 activity involving KC8ACO, decoded by SO8OO in southeastern Poland. 7 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-16.

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 7 FT8 messages attributed to KC8ACO as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -18 dB; no usual signal pattern is inferred.

Overview

7
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-18 dB
Estimated median S/N

Bands

20m · 7
First attributed message: 2026-06-16
Last attributed message: 2026-06-16 02:09 UTC

Observed FT8 message patterns

Attributed sample
7 messages
Active dates
1 UTC dates
Estimated median S/N
-18 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.

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 KC8ACO in decoded directed-looking exchanges:

Most frequent locator attributed to KC8ACO

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
EN73 · 6 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,442 km (approx.)
Last such locator decoded
2026-06-16 02:09 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 UTCBandKC8ACO S/NCounterpartCounterpart S/NMsgsCapture
07-25 23:50 20m - / - F5PBG -9 / - 4 Partial capture
07-25 22:48 20m - / -21 EA1AA -10 / - 4 ✓ Closing fragment
07-25 02:12 20m - / -15 IK1BQD -12 / - 3 Partial capture
07-22 03:31 40m - / - F4BYA 0 / - 5 Partial capture
07-22 03:21 40m - / - F4BYA 0 / - 5 Partial capture
07-22 02:18 40m - / -25 KB3Z -15 / - 7 Partial capture
07-22 01:55 40m - / - F4BYA +2 / - 5 Partial capture
07-21 22:57 20m - / -19 EA2DP +2 / - 3 ✓ Closing fragment
07-21 22:51 20m - / -25 EA2DP +1 / - 3 Partial capture
07-21 05:53 20m - / +2 SP1MGM -16 / - 3 ✓ Closing fragment
07-21 05:40 20m - / -11 CR7BRV -4 / - 2 ✓ Closing fragment
07-21 05:35 40m - / -19 IZ3GOO -16 / - 3 ✓ Closing fragment
07-21 05:34 20m - / +4 EA3HMM -13 / - 4 ✓ Closing fragment
07-21 05:30 20m - / -18 DL4JG -10 / - 2 ✓ Closing fragment
07-21 05:26 20m - / -14 G4OWT -4 / - 2 ✓ Closing fragment
07-21 05:26 20m - / - ES2AJ -13 / - 2 Partial capture
07-21 05:22 20m - / - DL3RAJ -7 / - 15 Partial capture
07-21 05:19 20m - / -16 DJ7JB +6 / - 2 Partial capture
07-21 05:15 20m - / - PD0WL -22 / - 3 Partial capture
07-21 04:19 40m - / - IQ4JO +3 / - 2 ✓ Closing fragment
07-21 03:31 20m - / -22 UR3LM -13 / - 4 ✓ Closing fragment
07-21 01:19 20m - / -11 IK4LZH -6 / - 4 ✓ Closing fragment
07-20 05:49 20m - / -20 EB3JT -6 / - 4 ✓ Closing fragment
07-20 05:41 20m - / -16 MI0OBC +2 / - 2 ✓ Closing fragment
07-20 05:40 20m - / - EB3JT +4 / - 3 Partial capture
07-20 05:38 20m - / - DG5PW -16 / - 2 Partial capture
07-20 05:35 40m - / -21 F1TXI -20 / - 3 ✓ Closing fragment
07-20 05:12 20m - / - OE9KFV -6 / - 2 Partial capture
07-20 05:06 20m - / -7 IU0TPA -6 / - 3 ✓ Closing fragment
07-20 04:10 40m - / - F5PBG -22 / - 3 Partial capture
07-20 03:15 40m - / - DL1UDO -16 / - 4 Partial capture
07-20 02:42 20m - / - DL9KM -6 / - 6 Partial capture
07-20 01:32 40m - / -18 F5HNQ -8 / - 4 ✓ Closing fragment
07-20 00:39 20m - / - UR4QWW -8 / - 2 Partial capture
07-20 00:37 20m - / -14 R5AV -15 / - 3 Partial capture
07-19 03:40 20m - / - YO8RGC -13 / - 2 Partial capture
07-19 03:32 20m - / -23 R7DX -8 / - 3 ✓ Closing fragment
07-19 03:26 20m - / -16 RK4FF -20 / - 2 ✓ Closing fragment
07-19 03:22 20m - / -20 R2AL -4 / - 4 ✓ Closing fragment
07-19 02:42 20m - / - R2AL -12 / - 3 Partial capture
07-19 01:07 20m - / - R2AL -8 / - 4 Partial capture
07-19 00:47 20m - / - PD0IFI -10 / - 3 Partial capture
07-19 00:29 20m - / - R2AL -9 / - 3 Partial capture
07-18 23:57 20m - / - PD1AC -18 / - 2 Partial capture
07-18 04:19 20m - / -11 SP8AJK -14 / - 2 ✓ Closing fragment
07-18 04:18 20m - / - F4EOC -19 / - 2 Partial capture
07-18 04:03 20m - / - SP8AJK -15 / - 3 Partial capture
07-18 04:02 20m - / - R6OP -5 / - 2 Partial capture
07-18 03:52 20m - / - IK2JYT -18 / - 3 Partial capture
07-18 02:46 20m - / 0 KS4OT -14 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
225845  +4 1419  KC8ACO EA2DP 73
032045 -22 1558  KC8ACO IW2ENA JN45
021215 -11  226  KC8ACO IK1BQD JN35 (x3)
222415 -11  280  KC8ACO HI8J -09
224300 -18 1344  KC8ACO G8NJL IO81
224800  -8 1341  KC8ACO EA1AA IN83 (x4)
235045 -11 1489  KC8ACO F5PBG IN78 (x4)
40m 
UTC    dB Audio  Message
024530  +0 2981  KC8ACO F4BYA JN19 (x10)
033130 -14 2464  KC8ACO DL8TV -20
033300  -1 2981  KC8ACO F4BYA JN19 (x4)

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