8B81JI — 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: Indonesia

Receiver-side FT8 activity involving 8B81JI, decoded by SO8OO in southeastern Poland. 1 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 1 FT8 messages attributed to 8B81JI 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

Messages attributed

UTC dates decoded

Active 15-min windows

S/N pattern not inferred

Bands

20m · 1

First attributed message: 2026-08-20
Last attributed message: 2026-08-20 19:03 UTC

Observed FT8 message patterns

Attributed sample: 1 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 8B81JI in decoded directed-looking exchanges:

AO25FDM · Spain ×2 RW3C/P · European Russia ×2 3B8/SQ9UM · Mauritius EN100NP · Ukraine F4BYA/P · France GB50PUNK · England IU1SCB/IN3 · Italy RY0AAN/P · Asiatic Russia RZ3Z/P · European Russia

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 UTC	Band	8B81JI S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-20 19:08	20m	- / -	<...>	+2 / -	3	✓ Closing fragment
08-20 18:55	20m	- / -	EA3IE	-14 / -	2	Partial capture
08-16 14:30	20m	- / -	RW3C/P	-16 / -	2	✓ Closing fragment
08-13 17:56	20m	- / -	<...>	-4 / -	2	✓ Closing fragment
08-11 17:11	20m	- / -	UW8SM	-11 / -	3	Partial capture
08-11 17:08	20m	- / -	<...>	0 / -	3	✓ Closing fragment
08-10 21:05	20m	- / -	IU1SCB/IN3	+2 / -	5	✓ Closing fragment
08-10 18:47	20m	- / -	<...>	-4 / -	2	✓ Closing fragment
08-10 18:41	20m	- / -	<...>	-9 / -	2	✓ Closing fragment
08-10 18:15	20m	- / -	<...>	-4 / -	2	✓ Closing fragment
08-10 18:15	20m	- / -15	IW2NEF	-12 / -	2	Partial capture
08-10 17:53	20m	- / -	<...>	+1 / -	3	✓ Closing fragment
08-10 15:45	20m	- / -13	ON2KMJ	-15 / -	3	Partial capture
08-10 15:44	20m	- / -	<...>	0 / -	2	✓ Closing fragment
08-10 14:38	20m	- / -12	R6SS	-14 / -	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
184915  +1  617  8B81JI <...> 73 (x2)
185515  -8 1403  <8B81JI> EA3IE JN01
185515 +17 2684  8B81JI AO25FDM 73
185545 -19 1403  8B81JI EA3IE JN01
185915  +2  901  8B81JI <...> 73
190015  +7 1544  8B81JI AO25FDM 73
190245  +0  857  <8B81JI> F4LZZ JN09
190245 +10 1138  8B81JI <...> 73
190300 -15  897  CQ 8B81JI
190815 -10 1272  8B81JI <...> 73 (x3)
193515 -13 1655  <8B81JI> ON6LEO R-21
193515  +4 1576  8B81JI <...> 73

40m

UTC    dB Audio  Message
162715 -20 2075  8B81JI <...> 73 (x3)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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