JO3DDD — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Japan

Receiver-side FT8 activity involving JO3DDD, decoded by SO8OO in southeastern Poland. 45 related FT8 messages, observed on 40m, 20m, 10m, across 16 UTC dates. Heard between 2026-05-29 and 2026-08-22.

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

45
Related messages
0
CQ messages
16
UTC dates heard
-3 dB
Mean decoder S/N

Bands

First seen: 2026-05-29
Last seen: 2026-08-22 20:31 UTC

Frequent QSO partners observed at SO8OO

Stations JO3DDD worked most often, as logged from our receiver:

Activity Heatmap

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 UTCBandJO3DDD S/NCounterpartCounterpart S/NMsgsCapture
08-22 22:30 20m - / - IU0NAD -8 / - 3 Partial capture
08-22 22:29 20m -18 / - G8KHF - / -16 2 Partial capture
08-07 23:09 20m - / -4 EA1A -10 / - 2 ✓ Closing fragment
08-04 22:31 20m - / - CU2AP -6 / - 2 ✓ Closing fragment
07-24 12:37 20m - / - EA5HEU -13 / - 2 Partial capture
07-22 10:26 10m - / -15 IK4LZH +10 / - 3 Partial capture
06-18 13:09 20m - / -11 R4ML -2 / - 2 Partial capture
06-14 21:38 20m -1 / - <...> - / -12 5 Partial capture
06-12 23:04 20m - / -12 IU2VBP +1 / - 3 ✓ Closing fragment
06-12 23:01 20m - / +1 A60PC/14 -10 / - 2 Partial capture
06-08 13:51 10m - / -7 9X5KM -10 / - 2 Partial capture
06-08 12:38 10m - / -7 7Z1IS +6 / - 3 Partial capture
06-06 23:11 20m - / -8 9X5KM +6 / - 2 ✓ Closing fragment
06-06 22:01 20m -2 / - 9X5KM - / - 3 Partial capture
06-06 21:44 20m -3 / - 9X5KM - / - 18 Partial capture
06-06 21:38 20m -7 / - 9X5KM - / - 4 Partial capture
06-05 22:19 20m - / -19 A61SD -5 / - 3 ✓ Closing fragment
05-29 22:46 20m - / -17 7Z1BS +6 / - 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
230600  -7  453  JO3DDD A92AE -13
134800  +2 1158  JO3DDD UA6YEX -18
123745 -17 2212  JO3DDD EA5HEU JN00 (x2)
222930  -1  510  JO3DDD R3OR -19
223130  -5  816  JO3DDD CU2AP R+13 (x2)
131330  -1  581  JO3DDD EB3JT JN01
230915 -13 1794  JO3DDD EA1A R-04 (x2)
222915 -16  616  G8KHF JO3DDD -16 (x2)
223015  -6 2033  JO3DDD IU0NAD JN62 (x3)
40m
UTC    dB Audio  Message
215430  -8 2517  JO3DDD YO6KNZ KN26
10m
UTC    dB Audio  Message
123845 +10 2242  JO3DDD 7Z1IS R-07 (x3)
135100  -9  786  JO3DDD 9X5KM -07 (x2)
074315 -13 1140  JO3DDD RA6YZ R-12
102945 -19 1141  JO3DDD A60PC/5 R+00
102645  +9  491  JO3DDD IK4LZH R-15 (x3)

Decoder S/N history by band

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