JK1XMP — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: QM05

Receiver-side FT8 activity involving JK1XMP, decoded by SO8OO in southeastern Poland. 3 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-10.

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 3 FT8 messages attributed to JK1XMP as the transmitting token by decoded message structure across 2 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

3
Messages attributed
2
UTC dates decoded
2
Active 15-min windows
-
S/N pattern not inferred

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-06-10 20:12 UTC

Observed FT8 message patterns

Attributed sample
3 messages
Active dates
2 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 JK1XMP in decoded directed-looking exchanges:

Most frequent locator attributed to JK1XMP

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator
QM05 · 3 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,798 km (approx.)
Last such locator decoded
2026-06-10 20:12 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

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 UTCBandJK1XMP S/NCounterpartCounterpart S/NMsgsCapture
09-12 19:55 40m - / -13 PI4DX +10 / - 2 ✓ Closing fragment
09-08 20:46 40m - / -15 IZ0ZIP +6 / - 2 ✓ Closing fragment
09-08 20:46 40m - / +2 SY1BKQ +2 / - 2 ✓ Closing fragment
09-07 19:35 40m - / -11 UR1CCT +16 / - 3 ✓ Closing fragment
09-05 20:51 40m - / -21 ON4IQ +20 / - 2 ✓ Closing fragment
08-21 20:00 40m - / -22 AO25FDM -3 / - 2 Partial capture
08-15 19:57 40m - / - UA4FKT -13 / - 4 Partial capture
08-09 19:22 40m - / -24 LY1DY -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
195845 -12 1727  JK1XMP UA4FKT LO23
200045  -4  544  JK1XMP AO25FDM -22 (x2)
202930  +2  980  JK1XMP <...> -25
205115 +21 2599  JK1XMP ON4IQ -21 (x2)
193545 +18  543  JK1XMP UR1CCT KN69 (x3)
204600  -1 2981  JK1XMP SY1BKQ R+02 (x2)
204630  +5 2917  JK1XMP IZ0ZIP -15 (x2)
195545 +12  993  JK1XMP PI4DX -13 (x2)
20m
UTC    dB Audio  Message
115400 -15 1798  JK1XMP <...> -14
194600  -7 2508  JK1XMP RL3ZA RR73
210715  +4  295  JK1XMP IZ2CPO/QRP R-19

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