JR3ISD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan Locator transmitted in a decoded message: PM74

Receiver-side FT8 activity involving JR3ISD, decoded by SO8OO in southeastern Poland. 10 related FT8 messages, observed on 20m, across 3 UTC dates. Heard between 2026-06-20 and 2026-08-24.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

10
Related messages
0
CQ messages
3
UTC dates heard
-3 dB
Mean decoder S/N

Bands

20m
First seen: 2026-06-20
Last seen: 2026-08-24 06:35 UTC

Frequent QSO partners observed at SO8OO

Stations JR3ISD worked most often, as logged from our receiver:

Locator transmitted by JR3ISD

Approximate centre of PM74, decoded 2026-08-23 21:12 UTC. A transmitted locator is not proof of the operator's permanent location.

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 UTCBandJR3ISD S/NCounterpartCounterpart S/NMsgsCapture
08-22 20:31 20m - / - LB8OH 0 / - 3 Partial capture
08-22 20:29 20m - / -2 UX1VT -2 / - 3 ✓ Closing fragment
06-20 12:52 20m - / -11 R9FDE/P -4 / - 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
125200  -3 2426  JR3ISD R9FDE/P -11 (x2)
202230 -10  762  JR3ISD EC4TR/P -13
202930  -6 2781  JR3ISD UX1VT KN68 (x3)
203100  -2 2740  JR3ISD LB8OH JP20 (x3)
211215 -12 2700  PD7Z/P JR3ISD PM74
083515  -6  369  JR3ISD HC2GRC RR73

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.