8C81KS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Indonesia

Receiver-side FT8 activity involving 8C81KS, decoded by SO8OO in southeastern Poland. 664 related FT8 messages, 37 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 11 UTC dates. Heard between 2026-08-10 and 2026-08-20.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

664
Related messages
37
CQ messages
11
UTC dates heard
-6 dB
Mean decoder S/N

Bands

80m 20m 40m 60m 10m
First seen: 2026-08-10
Last seen: 2026-08-20 21:19 UTC

Frequent QSO partners observed at SO8OO

Stations 8C81KS worked most often, as logged from our receiver:

Activity Heatmap

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 UTCBand8C81KS S/NCounterpartCounterpart S/NMsgsCapture
08-20 23:24 20m -16 / - <...> - / - 2 Partial capture
08-20 23:12 20m -8 / - LB8DE/M -4 / - 3 ✓ Closing observed
08-20 23:11 20m -6 / - <...> - / - 2 ✓ Closing fragment
08-20 23:05 20m -8 / - <...> - / - 4 ✓ Closing fragment
08-20 23:04 20m -13 / - II7MGFG - / - 2 Partial capture
08-20 23:00 20m -11 / - <...> +5 / - 4 ✓ Closing fragment
08-20 22:56 20m -10 / - <...> +5 / - 3 ✓ Closing fragment
08-20 22:55 20m -7 / - LB8DE/M - / - 2 Partial capture
08-20 22:47 20m - / - <...> -4 / - 3 ✓ Closing fragment
08-20 22:35 40m - / -14 YO6LM -4 / - 2 Partial capture
08-20 22:29 40m - / - <...> +2 / - 2 ✓ Closing fragment
08-20 17:06 20m -10 / - PA3FRX -12 / -14 3 Partial capture
08-20 17:05 20m -8 / - <...> -4 / - 4 ✓ Closing fragment
08-20 17:01 10m - / - <...> -9 / - 2 ✓ Closing fragment
08-20 16:49 20m - / - OE9DAI -7 / - 2 Partial capture
08-20 16:49 20m -14 / - <...> +8 / - 2 ✓ Closing fragment
08-20 16:19 10m -23 / - <...> -17 / - 2 ✓ Closing fragment
08-20 16:08 10m -22 / - <...> -15 / - 4 ✓ Closing fragment
08-20 16:05 20m -6 / - <...> +11 / - 2 ✓ Closing fragment
08-20 15:55 20m +1 / - <...> -9 / - 7 ✓ Closing fragment
08-20 15:49 20m -2 / - <...> -9 / - 6 ✓ Closing fragment
08-20 15:43 10m - / - DL1AAH -8 / - 3 Partial capture
08-20 15:35 10m - / - DL1AAH -6 / - 7 Partial capture
08-20 15:33 10m - / - DO1ANB -17 / - 5 Partial capture
08-20 15:15 20m -6 / - <...> - / - 5 ✓ Closing fragment
08-20 15:10 20m -5 / - CT1END/P +16 / - 2 ✓ Closing observed
08-20 14:55 20m -8 / - <...> +1 / - 13 ✓ Closing fragment
08-20 13:47 20m -7 / - <...> - / - 3 Partial capture
08-19 23:15 20m -14 / - <...> -10 / - 3 ✓ Closing fragment
08-19 23:04 20m -8 / - ZA5G -12 / - 2 ✓ Closing observed
08-19 23:00 20m -4 / - <...> - / - 3 ✓ Closing fragment
08-19 22:55 20m -1 / - <...> -14 / - 2 ✓ Closing fragment
08-19 22:47 20m - / - KC2SWC -20 / - 3 Partial capture
08-19 22:41 20m -6 / - <...> - / - 7 ✓ Closing fragment
08-19 17:47 60m - / - DL80NRW -2 / - 2 Partial capture
08-19 17:28 60m - / - SP2TQI 0 / - 4 Partial capture
08-19 17:28 60m - / -9 SV2HTI +2 / - 2 Partial capture
08-19 17:22 60m - / - <...> -4 / - 6 ✓ Closing fragment
08-19 17:22 60m - / - DL6TK -6 / - 5 Partial capture
08-19 17:19 60m - / - <...> 0 / - 2 ✓ Closing fragment
08-19 17:19 60m - / - DB5AE -16 / - 2 Partial capture
08-19 17:19 60m - / -2 DL6ZXG +5 / - 2 Partial capture
08-19 17:19 60m - / - SV1QEW -12 / - 10 Partial capture
08-19 17:19 60m - / - YO8AAZ -3 / - 27 Partial capture
08-19 17:01 20m - / - EA1EMI -10 / - 3 Partial capture
08-19 13:58 20m - / - <...> -8 / - 2 ✓ Closing fragment
08-18 19:38 60m - / - HA7XL +9 / - 3 Partial capture
08-18 19:36 60m - / - <...> -6 / - 4 ✓ Closing fragment
08-18 19:30 60m - / - IK1YFE -20 / - 3 Partial capture
08-18 19:26 60m - / - F8FTY -16 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
230715  -9  867  <...> 8C81KS 73 (x4)
231230  -7  677  LB8DE/M 8C81KS
231315  -4  675  8C81KS LB8DE/M RR73
231330 -10  677  LB8DE/M 8C81KS 73
231545 -12  964  W7/UR5YH 8C81KS
231830 -12  732  CQ 8C81KS (x3)
232315 -13 1128  <KD9ZHF> 8C81KS
232445 -13  964  <...> 8C81KS (x3)
40m 
UTC    dB Audio  Message
192230  +2  680  8C81KS <...> 73 (x3)
164730  -4 1139  8C81KS SQ5WBW/P RR73
171600  -2 1496  8C81KS <...> 73
173030  -1 1552  8C81KS UA3MRS/QRP 73
222930  +5 1551  <8C81KS> DK9MLA JO40
222930 -11 1137  <8C81KS> DL7JLC JO62
222930  +3 1905  <8C81KS> DK7ZT -19
222930  -4 1377  8C81KS <...> 73
223030  -9 1600  <8C81KS> F5PBG IN78
223030  +8 1684  8C81KS <...> 73
223500  -1 2866  <8C81KS> YO6LM -14
223500  +3 1263  8C81KS <...> 73
223530  -7 2866  8C81KS YO6LM -14
10m 
UTC    dB Audio  Message
154345 -11  439  8C81KS DL1AAH (x3)
155745  -9 1877  8C81KS <...> 73 (x4)
161100 -22 1586  <...> 8C81KS RR73
161115 -24 1585  8C81KS <...> 73 (x3)
162130 -23 1584  <...> 8C81KS RR73
163145  -9 1872  8C81KS <...> 73 (x3)
80m 
UTC    dB Audio  Message
180445  -1 1690  <8C81KS> DO1ARD JN49
180445  -5 1597  8C81KS <...> RR73
180515  +0  808  8C81KS DO5HOK JO41
180515  +3 1690  8C81KS DO1ARD JN49
180615  +0 2896  <8C81KS> G6CUT IO90
180615  +0 2408  <8C81KS> DK4SDR JN49
180615  +1 2243  8C81KS <...> 73
180645  -4 2897  8C81KS G6CUT IO90 (x2)
180715 -17 1803  8C81KS <...> 73
180745 -17 1703  8C81KS G6CUT IO90 (x3)
181030 -24 1597  CQ 8C81KS
194115 +14  746  8C81KS <...> 73
60m 
UTC    dB Audio  Message
172945  +1 1037  8C81KS SP2TQI JO94
172945  -5 1617  8C81KS YO8AAZ KN36 (x3)
173115  -6 1444  8C81KS <...> 73
173115  -5 1617  <8C81KS> YO8AAZ KN36 (x5)
173945  +5 1342  8C81KS <...> 73 (x2)
174745  -4 2243  <8C81KS> DL80NRW (x2)
192515  -5 1039  8C81KS <...> 73

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.