JA0DET — 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: PM97

Receiver-side FT8 activity involving JA0DET, decoded by SO8OO in southeastern Poland. 2 FT8 messages attributed to this token as transmitter, on 80m, across 1 UTC dates in the available aggregate history. Last observed 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 JA0DET as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 80 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

80m · 2

First attributed message: 2026-10-27
Last attributed message: 2026-10-27 20:55 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 JA0DET in decoded directed-looking exchanges:

EC6AAE · Balearic Islands F5UKW · France IW4AOT · Italy OH5KNL · Finland PI4DX · Netherlands R6DSW · European Russia UW5ZM · Ukraine RO2X · European Russia SP5AA · Poland YO4NF · Romania

Most frequent locator attributed to JA0DET

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: PM97 · 2 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 8,513 km (approx.)
Last such locator decoded: 2026-10-27 20:55 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 UTC	Band	JA0DET S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-06 21:09	160m	- / -	LA1PHA	-18 / -	2	Partial capture
11-05 21:21	80m	- / -24	SP5AA	+9 / -	4	✓ Closing fragment
11-05 20:49	160m	- / -20	S56P	+15 / -	7	Partial capture
11-02 21:11	160m	- / -11	UW5ZM	+7 / -	6	✓ Closing fragment
11-01 20:28	80m	- / -15	US2YW	+9 / -	6	Partial capture
11-01 20:24	80m	- / -18	RO2X	+5 / -	7	✓ Closing fragment
10-29 21:12	160m	- / -	IW4AOT	+7 / -	3	✓ Closing fragment
10-29 21:09	160m	- / -17	IW4AOT	-2 / -	2	Partial capture
10-29 21:06	160m	- / -	F5UKW	-5 / -	5	✓ Closing fragment
10-29 21:06	160m	- / -13	OH5KNL	-6 / -	3	✓ Closing fragment
10-29 21:05	160m	- / -	SP3BPU	+11 / -	10	Partial capture
10-29 21:00	160m	- / -	9A2NO	-1 / -	3	Partial capture
10-29 20:58	160m	- / -15	EC6AAE	-6 / -	3	✓ Closing fragment
10-29 20:58	160m	- / -	SP3BPU	-2 / -	3	Partial capture
10-27 20:55	80m	-18 / -	IS0LAY	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
211200  +5  260  JA0DET UW5ZM KN57 (x5)
211400  -6 2040  JA0DET R6DSW KN85
204945 +15 2312  JA0DET S56P -20 (x7)
210945 -17  507  JA0DET LA1PHA JP66 (x2)

80m

UTC    dB Audio  Message
202715 +11 2306  JA0DET RO2X KO74 (x2)
202815 +10  546  JA0DET US2YW KN28
202815  -3 2306  JA0DET RO2X 73
202845  +5  546  JA0DET US2YW KN28 (x5)
212100  -4 2362  JA0DET YO4NF RR73
212130  +6 1851  JA0DET SP5AA JO92 (x3)
212300 -14 2419  JA0DET UX1AA KO70
212300 +12 1851  JA0DET SP5AA 73

CW

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

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee