JG3FEA — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving JG3FEA, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-06-14.

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 20 FT8 messages attributed to JG3FEA as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

20
Messages attributed
5
UTC dates decoded
7
Active 15-min windows
-10 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-06-14 22:19 UTC

Observed FT8 message patterns

Attributed sample
20 messages
Active dates
5 UTC dates
Estimated median S/N
-10 dB
Estimated 10th-90th percentile
-17 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 9.

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 JG3FEA in decoded directed-looking exchanges:

Most frequent locator attributed to JG3FEA

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 · 14 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,565 km (approx.)
Last such locator decoded
2026-06-14 22:19 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 UTCBandJG3FEA S/NCounterpartCounterpart S/NMsgsCapture
08-28 10:49 20m - / - GJ0KYZ +7 / - 3 Partial capture
08-03 11:33 20m - / -13 DL100LH -6 / - 2 Partial capture
07-27 12:19 20m - / - RA4ABH -10 / - 2 Partial capture
07-14 22:24 20m - / -18 EA1DV -9 / - 2 Partial capture
06-26 21:19 20m - / -16 OD5ZF -12 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
095700 -18 2005  JG3FEA <...> -07 (x2)
120700  -8  519  JG3FEA RR73; RK9UM <...> -14
222415 -11 2478  JG3FEA EA1DV -18 (x2)
121915 -13 1214  JG3FEA RA4ABH LO20 (x2)
122830 -24 1817  JG3FEA R8QA -05
113330  -7 1737  JG3FEA DL100LH -13 (x2)
222400 -11  814  JG3FEA DB1IUA RR73
222430  -4 2339  JG3FEA YO6LM -08
104915  +8 2639  JG3FEA GJ0KYZ IN89 (x3)
10m
UTC    dB Audio  Message
090300  -1 1478  JG3FEA LZ01MIKU -16

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