8A81RI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Indonesia

Receiver-side FT8 activity involving 8A81RI, decoded by SO8OO in southeastern Poland. 4 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-20.

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 8A81RI as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

4
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-
S/N pattern not inferred

Bands

First attributed message: 2026-08-20
Last attributed message: 2026-08-20 19:54 UTC

Observed FT8 message patterns

Attributed sample
4 messages
Active dates
1 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 8A81RI in decoded directed-looking exchanges:

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 UTCBand8A81RI S/NCounterpartCounterpart S/NMsgsCapture
08-20 19:53 20m +2 / - <...> - / - 2 ✓ Closing fragment
08-20 19:46 20m - / - SV8GXC -5 / - 2 Partial capture
08-20 19:46 20m 0 / - <...> +11 / - 2 ✓ Closing fragment
08-20 19:37 20m - / - EA1EMI -17 / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
193615 -14 1882  <8A81RI> DK1RWR JO31
193615  -3 2370  8A81RI <...> 73
193745 -16 2370  <8A81RI> EA1EMI IN73
193745 +14 1472  8A81RI 9A60CBM RR73
193845 -19 2370  8A81RI EA1EMI IN73 (x2)
194600  +0 2929  <...> 8A81RI RR73
194615  -6 2370  <8A81RI> SV8GXC KM38
194615  +3  376  <8A81RI> DB9LG R+02
194615 +11 2239  8A81RI <...> 73
194645  -4 2370  8A81RI SV8GXC KM38
195100  -2 2929  <...> 8A81RI RR73 (x3)
10m
UTC    dB Audio  Message
100815  -4 2640  8A81RI <...> 73

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