DD5JI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DD5JI, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-02.
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 19 FT8 messages attributed to DD5JI as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was 0 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 19 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- 0 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 15.
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 DD5JI in decoded directed-looking exchanges:
Most frequent locator attributed to DD5JI
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
- JN39 · 14 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,063 km (approx.)
- Last such locator decoded
- 2026-09-02 21:49 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 | DD5JI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-02 21:47 | 40m | -8 / - | VJ6X | - / - | 6 | Partial capture |
| 09-02 21:43 | 40m | - / - | DJ0MAB | +3 / - | 3 | Partial capture |
| 09-02 21:42 | 40m | +6 / - | RI1FJL | - / - | 2 | ✓ Closing fragment |
| 09-02 21:40 | 40m | - / - | PE1NPS | -2 / - | 4 | Partial capture |
| 09-02 21:39 | 40m | +10 / - | DS2MGT | - / -21 | 2 | ✓ Closing fragment |
| 09-02 21:38 | 40m | - / - | F5PBG | -8 / - | 2 | Partial capture |
| 09-02 21:37 | 40m | -10 / - | HL2DAA | -11 / -6 | 3 | ✓ Closing observed |
| 09-02 21:16 | 40m | -1 / - | VK3NX | - / - | 4 | Partial capture |
| 09-02 21:14 | 40m | 0 / - | JF1UVJ | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 214030 -7 2452 DD5JI PE1NPS JO22 (x3) 214215 +9 1946 RI1FJL DD5JI JN39 214300 -16 445 DD5JI RR73; 9A3EYA <...> +02 214315 +2 1946 RI1FJL DD5JI 73 214330 +3 1946 DD5JI DJ0MAB JN49 (x3) 214715 -3 1945 VJ6X DD5JI JN39 (x6)
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