IZ5LDD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ5LDD, decoded by SO8OO in southeastern Poland. 68 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-21.
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 68 FT8 messages attributed to IZ5LDD as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (60%), followed by 20 m (40%). Several six-hour UTC windows tied for the largest share (62%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was +1 dB.
Overview
Bands
Last attributed message: 2026-08-21 17:37 UTC
Observed FT8 message patterns
- Attributed sample
- 68 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- +1 dB
- Estimated 10th-90th percentile
- -13 to +12 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 56.
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 IZ5LDD in decoded directed-looking exchanges:
Most frequent locator attributed to IZ5LDD
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
- JN53 · 45 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,089 km (approx.)
- Last such locator decoded
- 2026-08-21 17:34 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 | IZ5LDD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-21 17:36 | 20m | +6 / - | SP5MXW | - / -11 | 2 | ✓ Closing fragment |
| 08-21 17:32 | 20m | +6 / -13 | BG7BVI | -16 / - | 5 | ✓ Closing observed |
| 08-21 17:29 | 20m | +7 / - | RA9J | - / - | 3 | Partial capture |
| 08-21 17:26 | 20m | +12 / - | EX7CQ | - / -15 | 3 | ✓ Closing fragment |
| 08-21 17:24 | 20m | +9 / - | BA3NZ | - / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 172515 +12 858 BA3NZ IZ5LDD JN53 (x2) 172645 +11 858 EX7CQ IZ5LDD JN53 (x3) 172900 +7 858 RA9J IZ5LDD JN53 (x3) 173215 +6 858 BG7BVI IZ5LDD JN53 (x3) 173530 -15 2039 IZ5LDD BG7BVI -13 (x2) 173645 +7 858 SP5MXW IZ5LDD -11 (x2)
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