8H81YK — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Indonesia

Receiver-side FT8 activity involving 8H81YK, decoded by SO8OO in southeastern Poland. 221 related FT8 messages, 44 CQ messages, observed on 80m, 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

221
Related messages
44
CQ messages
11
UTC dates heard
-7 dB
Mean decoder S/N

Bands

80m 40m 20m 10m
First seen: 2026-08-10
Last seen: 2026-08-20 19:49 UTC

Frequent QSO partners observed at SO8OO

Stations 8H81YK 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 UTCBand8H81YK S/NCounterpartCounterpart S/NMsgsCapture
08-20 17:16 20m - / - ON7DJ -5 / - 3 Partial capture
08-20 16:43 20m - / -16 7Z1AL -17 / - 3 Partial capture
08-20 16:43 20m -10 / - <...> -7 / - 3 ✓ Closing fragment
08-19 15:02 10m - / - <...> -13 / - 3 ✓ Closing fragment
08-18 08:29 10m - / -16 M0BCT +2 / - 3 Partial capture
08-18 08:17 10m - / - <...> -18 / - 2 ✓ Closing fragment
08-18 07:57 10m - / - IU2IKT -14 / - 2 Partial capture
08-17 17:04 40m - / - <...> -3 / - 2 ✓ Closing fragment
08-16 16:29 20m - / - GM0SDV -12 / - 4 Partial capture
08-15 17:35 20m - / - <...> +2 / - 2 ✓ Closing fragment
08-15 17:35 20m - / -3 F5HRH +12 / - 2 Partial capture
08-15 16:23 20m - / - <...> +2 / - 4 ✓ Closing fragment
08-11 22:55 40m - / - <...> -14 / - 3 ✓ Closing fragment
08-11 18:31 40m - / - <...> -8 / - 2 ✓ Closing fragment
08-11 18:31 40m - / -8 R2FEA -13 / - 2 Partial capture
08-11 17:42 40m - / - <...> 0 / - 2 ✓ Closing fragment
08-11 17:31 20m - / - PD1ADA -18 / - 2 Partial capture
08-11 17:30 20m - / - HB9TIH -11 / - 4 Partial capture
08-11 17:28 20m - / -6 EI4KF -8 / - 2 Partial capture
08-11 17:27 20m - / - <...> +3 / - 5 ✓ Closing fragment
08-11 17:07 20m - / - <...> +4 / - 2 ✓ Closing fragment
08-11 16:48 20m - / - <...> -2 / - 3 ✓ Closing fragment
08-11 16:48 20m - / -3 DL1BFR +6 / - 2 Partial capture
08-11 16:44 20m - / - <...> -10 / - 2 ✓ Closing fragment
08-11 15:17 20m - / - <...> -16 / - 2 ✓ Closing fragment
08-11 15:06 20m - / - <...> -5 / - 2 ✓ Closing fragment
08-11 15:06 20m - / - DK1RWR -14 / - 5 Partial capture
08-10 16:11 20m - / - <...> -6 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
163800 -15 2143  8H81YK <...> RR73
164300  -5 2742  <8H81YK> RA4FP -16
164300 -22 1628  8H81YK 5Q1T/LH RR73
224630  -5  692  8H81YK <...> 73 (x9)
212945  -7 2739  <8H81YK> RU6K KN74
212945  -6 2138  8H81YK R3PLN/P RR73
214930  +8  933  8H81YK <G4TDX> 73
20m 
UTC    dB Audio  Message
170130 -12  793  CQ 8H81YK (x3)
171615 +10 1490  8H81YK <...> 73
171615  -2  793  <8H81YK> ON7DJ JO21 (x3)
171730 -19  793  CQ 8H81YK (x3)
185845  +9 1931  <8H81YK> ON4BAR JO10
185845 +11 1654  8H81YK DB1BAC/P 73
190800 -17  793  CQ 8H81YK
191145 +21  411  <8H81YK> IK1JUS JN35
191145  +5 1560  8H81YK <...> RR73
10m 
UTC    dB Audio  Message
075715  -9 1088  8H81YK <...> 73
075745 -12 1014  8H81YK IU2IKT JN45
081215  -4 1909  8H81YK <...> 73 (x3)
082945  +0 2488  <8H81YK> M0BCT JO02
082945  -8 2013  8H81YK <...> 73
083045  +1 2488  8H81YK M0BCT R-16 (x2)
083945 -14 1921  8H81YK <...> 73 (x6)
80m 
UTC    dB Audio  Message
193330 -12  254  8H81YK <...> RR73

Decoder S/N history by band

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