JE3EDJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Most frequent locator attributed to this token: PM74

Receiver-side FT8 activity involving JE3EDJ, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-09-17.

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 37 FT8 messages attributed to JE3EDJ as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (92%), followed by 40 m (8%). Most decodes (86%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (65%); the estimated median was -5 dB.

Overview

37
Messages attributed
8
UTC dates decoded
9
Active 15-min windows
-5 dB
Estimated median S/N

Bands

40m · 3 20m · 34
First attributed message: 2026-06-11
Last attributed message: 2026-09-17 20:24 UTC

Observed FT8 message patterns

Attributed sample
37 messages
Active dates
8 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-17 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 24.

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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with JE3EDJ in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to JE3EDJ

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
PM74 · 9 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,565 km (approx.)
Last such locator decoded
2026-08-27 14:40 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 UTCBandJE3EDJ S/NCounterpartCounterpart S/NMsgsCapture
09-17 20:29 40m - / - EA3EDU 0 / - 2 Partial capture
09-17 20:25 40m - / - DJ0MAB +2 / - 3 Partial capture
09-17 20:25 40m - / -12 OH5KNL 0 / - 5 ✓ Closing fragment
09-17 20:23 40m -14 / - BG3NQT - / -4 2 ✓ Closing fragment
09-17 20:22 40m -18 / -9 M5BFL +16 / - 3 ✓ Closing observed
08-31 20:17 20m - / - G3ROY -7 / - 2 Partial capture
08-31 20:14 20m - / - EA1IOK +4 / - 2 Partial capture
08-31 20:14 20m - / -12 MI7XHT -10 / - 2 Partial capture
08-31 20:13 20m - / +3 GW4RDW +4 / - 3 ✓ Closing fragment
08-28 10:51 10m - / -11 CU2AP -13 / - 2 ✓ Closing fragment
08-27 14:40 20m -12 / -10 AP2N -6 / - 2 Partial capture
08-25 13:22 20m -18 / - K0DRE - / -24 2 Partial capture
08-25 13:17 20m - / - DH9DR +12 / - 3 Partial capture
08-25 13:08 20m - / - G8IXM -12 / - 2 Partial capture
08-25 12:45 20m - / -4 OH2XO -7 / - 6 ✓ Closing fragment
07-09 18:48 20m - / -7 4X1ZQ -16 / - 3 ✓ Closing fragment
07-02 20:14 20m - / +1 II7WWA -19 / - 3 ✓ Closing fragment
07-02 19:35 20m - / -17 EA1B 0 / - 3 ✓ Closing fragment
07-02 19:09 20m - / -9 TM8WWA -3 / - 3 ✓ Closing fragment
06-23 21:02 20m - / - G1ZOM -6 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
202345 -14 2271  BG3NQT JE3EDJ R-04 (x2)
202500  +4 2718  JE3EDJ OH5KNL KP30
202500  -5 2271  JE3EDJ F5PBG IN78
202530  +1 2613  JE3EDJ OH5KNL KP30
202530  +1 2270  JE3EDJ DJ0MAB JN49
202600  -2 2382  JE3EDJ OH5KNL R-12
202600  +3 2271  JE3EDJ DJ0MAB JN49
202630  +4 2381  JE3EDJ OH5KNL R-11
202630 +16 2800  JE3EDJ M5BFL RR73
202630  +2 2271  JE3EDJ DJ0MAB JN49
202700  -5 2381  JE3EDJ OH5KNL 73
202700  +0 2270  JE3EDJ DL1SRS JN49
202900  -4 2858  JE3EDJ EA3EDU JN01 (x2)
20m 
UTC    dB Audio  Message
132245 -18 1252  K0DRE JE3EDJ -24
144030 -12 1753  AP2N JE3EDJ PM74
144145  -6  625  JE3EDJ AP2N -10 (x2)
213345 -13 2831  JE3EDJ UA0LQE PN53
201330  +7 1818  JE3EDJ GW4RDW IO81 (x2)
201430 -11  561  JE3EDJ MI7XHT IO64
201430  +3 1818  JE3EDJ GW4RDW 73
201430  +3  648  JE3EDJ EA1IOK IN62
201500 -10  561  JE3EDJ MI7XHT R-12
201500  +5  648  JE3EDJ EA1IOK IN62
201730  -8 2022  JE3EDJ G3ROY IO70 (x2)
202615 -17 1006  HG0NPJ JE3EDJ R-18
10m 
UTC    dB Audio  Message
105100 -13 1163  JE3EDJ CU2AP -11 (x2)

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.

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