DC4DI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DC4DI, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-08.
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 DC4DI as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (65%), followed by 160 m (35%). In this small sample, the estimated median decoder S/N was +7 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-08 18:57 UTC
Observed FT8 message patterns
- Attributed sample
- 20 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- +7 dB
- Estimated 10th-90th percentile
- -13 to +12 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 17.
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 DC4DI in decoded directed-looking exchanges:
Most frequent locator attributed to DC4DI
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
- JO41 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 916 km (approx.)
- Last such locator decoded
- 2026-09-08 18:54 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 | DC4DI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-08 18:58 | 160m | - / +2 | PA3FR | -8 / - | 2 | ✓ Closing fragment |
| 09-08 18:57 | 160m | -15 / - | DO1BWO | - / -16 | 2 | ✓ Closing fragment |
| 09-08 18:53 | 160m | -7 / -23 | RU3XK | -3 / -18 | 8 | ✓ Full exchange observed |
| 09-08 18:49 | 80m | +12 / -3 | DD7EE | +1 / - | 7 | ✓ Full exchange observed |
| 09-08 18:49 | 80m | +6 / -6 | UA4FKT | +5 / -5 | 5 | ✓ Full exchange observed |
| 09-08 18:47 | 80m | +12 / - | RC9WC | - / -15 | 3 | ✓ Closing fragment |
| 09-08 18:46 | 80m | - / - | DD7EE | -4 / - | 2 | Partial capture |
| 09-08 18:44 | 80m | +8 / -15 | RK6OQ | +8 / -10 | 5 | ✓ Full exchange observed |
| 09-08 18:42 | 80m | +9 / -7 | UR4LRG | +14 / +5 | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 185330 -6 2320 RU3XK DC4DI JO41 (x2) 185415 -3 1655 DC4DI RU3XK -23 185430 -7 2320 RU3XK DC4DI R-18 185445 -3 1655 DC4DI RU3XK -23 185500 -6 2320 RU3XK DC4DI R-18 185545 -2 1655 DC4DI RU3XK RR73 185600 -10 2320 RU3XK DC4DI 73 185700 -17 2320 DO1BWO DC4DI -16 (x2) 185815 -9 652 DC4DI PA3FR +02 (x2)
UTC dB Audio Message 184745 +11 2328 RC9WC DC4DI R-15 (x3) 184900 +2 2328 DC4DI UA4FKT LO23 (x2) 184930 +0 1764 DC4DI DD7EE JO41 184945 +5 2328 UA4FKT DC4DI -05 185000 +8 2328 DC4DI UA4FKT R-06 185000 +2 1764 DC4DI DD7EE JO41 185015 +6 2328 UA4FKT DC4DI RR73 185030 +1 1764 DC4DI DD7EE JO41 185045 +8 2327 DD7EE DC4DI +19 185100 -1 1764 DC4DI DD7EE R-03 185115 +16 2328 DD7EE DC4DI RR73 185130 +4 1764 DC4DI DD7EE 73
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