JK7IKU — 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: Japan Most frequent locator attributed to this token: QM09

Receiver-side FT8 activity involving JK7IKU, decoded by SO8OO in southeastern Poland. 2 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-23 and 2026-10-27.

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 JK7IKU as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The available sample contains attributed decodes on 160 m (50%) and 80 m (50%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.

Overview

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

Bands

160m · 1 80m · 1
First attributed message: 2026-09-23
Last attributed message: 2026-10-27 15:10 UTC

Observed FT8 message patterns

Attributed sample
2 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 JK7IKU in decoded directed-looking exchanges:

Most frequent locator attributed to JK7IKU

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
QM09 · 2 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,434 km (approx.)
Last such locator decoded
2026-10-27 15:10 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 UTCBandJK7IKU S/NCounterpartCounterpart S/NMsgsCapture
11-04 20:08 160m - / - UX0LL -4 / - 2 Partial capture
11-03 20:31 160m - / -17 SP9MRO +8 / - 2 ✓ Closing fragment
11-03 20:29 160m - / -25 S53R +20 / - 2 ✓ Closing fragment
11-03 18:56 160m - / - EU1KY +11 / - 2 Partial capture
11-03 18:56 160m - / - UA3GX -6 / - 4 Partial capture
11-01 19:59 160m - / -25 SV8DCY -8 / - 4 ✓ Closing fragment
11-01 19:45 160m - / - OH5KNL -3 / - 3 Partial capture
10-30 20:42 80m - / -10 4O4A +16 / - 2 ✓ Closing fragment
10-23 15:33 160m - / - RA3QTT -17 / - 3 Partial capture
10-04 17:51 160m - / -15 LZ2IP +14 / - 2 ✓ Closing fragment
10-04 17:50 160m - / - SV8DCY -8 / - 4 Partial capture
09-30 18:12 160m - / -13 OH5KNL -6 / - 3 Partial capture
09-30 18:08 160m - / -13 OH5KNL +3 / - 3 Partial capture
09-23 19:40 160m - / - EI2CN -8 / - 2 Partial capture
09-23 19:33 160m - / -15 PI4DX -7 / - 2 ✓ Closing fragment
09-22 20:21 80m - / -19 LX1JH +10 / - 2 ✓ Closing fragment
09-22 17:05 160m - / -25 OH1MLZ +10 / - 2 ✓ Closing fragment
09-21 18:53 160m - / -21 UW5ZM +20 / - 4 ✓ Closing fragment
09-21 18:15 160m - / -16 EU3AA +7 / - 2 Partial capture
09-21 18:05 160m - / - SP3BPU +5 / - 3 Partial capture
09-21 18:04 160m - / - SP5GMM +2 / - 4 Partial capture
09-21 18:03 160m - / -15 ES2AJ -7 / - 3 ✓ Closing fragment
09-20 18:26 160m - / - UW5ZM +20 / - 6 Partial capture
09-16 17:52 80m - / -15 DL8OH +15 / - 2 ✓ Closing fragment
09-15 16:33 40m - / - YO8RQP -2 / - 5 Partial capture
09-07 20:13 40m - / +2 UR1CCT +7 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m 
UTC    dB Audio  Message
200145  -3 2571  JK7IKU SV8DCY RR73 (x2)
185600  -7  530  JK7IKU UA3GX KO92
185600 +13 1515  JK7IKU EU1KY KO33 (x2)
185700  +6 2324  JK7IKU UA3LID KO64
185700  +4  529  JK7IKU UA3GX KO92 (x3)
202930 +24  425  JK7IKU S53R -25 (x2)
203130  +7  920  JK7IKU SP9MRO -17 (x2)
200845  -5 1448  JK7IKU UX0LL KO50 (x2)
80m 
UTC    dB Audio  Message
175245 +16 2812  JK7IKU DL8OH -15 (x2)
202100  +4 2238  JK7IKU LX1JH R-19 (x2)
151045 -24 1850  XX9TXN JK7IKU QM09
204200 +13 2636  JK7IKU 4O4A -10 (x2)
40m 
UTC    dB Audio  Message
201330 +10 1398  JK7IKU UR1CCT KN69 (x3)
163330  -1  499  JK7IKU YO8RQP KN37 (x5)
183430 +10 1268  JK7IKU ON6AA JO11
214245 -17 2284  JK7IKU TF4M +00
214345  -5 2551  JK7IKU DL4RAQ JN58

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.

CW

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

Explore CW reception at SO8OO

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