JI1VXT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan

Receiver-side FT8 activity involving JI1VXT, decoded by SO8OO in southeastern Poland. 2 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-17.

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 2 FT8 messages attributed to JI1VXT 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

2
Messages attributed
1
UTC dates decoded
1
Active 15-min windows
-
S/N pattern not inferred

Bands

First attributed message: 2026-06-17
Last attributed message: 2026-06-17 20:58 UTC

Observed FT8 message patterns

Attributed sample
2 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 JI1VXT 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 UTCBandJI1VXT S/NCounterpartCounterpart S/NMsgsCapture
09-12 21:11 40m - / -19 OZ1AXG +22 / - 2 ✓ Closing fragment
09-03 20:24 40m - / -17 RW3ZC +2 / - 2 Partial capture
09-01 20:51 40m - / -14 D2ACE -14 / - 2 ✓ Closing fragment
08-06 21:16 20m - / -17 YO6LM -9 / - 2 Partial capture
08-06 21:15 20m - / -16 7X5CY -4 / - 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
165900  -5 1597  JI1VXT ES2AJ -16
205100 -14 2338  JI1VXT D2ACE -14 (x2)
202400  -1 2628  JI1VXT RW3ZC -17 (x2)
211100 +18 2789  JI1VXT OZ1AXG -19 (x2)
20m
UTC    dB Audio  Message
195230  -4 2285  JI1VXT SV5BYP -18
195300  -6 2285  JI1VXT RR73; M7OBM <...> -08
195700  -4 2285  JI1VXT SV5BYP -14
211530  -3  482  JI1VXT 7X5CY -16 (x2)
211630 -10 2338  JI1VXT YO6LM -17 (x2)

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