DH0DX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DH0DX, decoded by SO8OO in southeastern Poland. 86 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-25 and 2026-08-10.
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 86 FT8 messages attributed to DH0DX as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Most decodes (70%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 86 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -17 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 40.
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 DH0DX in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to DH0DX
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 · 24 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 916 km (approx.)
- Last such locator decoded
- 2026-08-10 20:38 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 | DH0DX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-10 20:51 | 20m | - / -2 | 9A4ZM | -7 / - | 3 | ✓ Closing fragment |
| 08-10 20:47 | 20m | - / -11 | YO4NF | -6 / - | 2 | ✓ Closing fragment |
| 08-10 20:40 | 40m | -7 / - | RA4FUT | - / -20 | 2 | ✓ Closing fragment |
| 08-10 20:39 | 40m | -8 / - | DK2BK | - / -19 | 2 | ✓ Closing fragment |
| 08-10 20:38 | 40m | -9 / - | DG9ZL | - / -14 | 2 | ✓ Closing fragment |
| 08-10 20:37 | 40m | -6 / - | SO5WD | - / -14 | 2 | ✓ Closing fragment |
| 08-10 20:35 | 40m | -5 / - | SP3JHZ | - / +1 | 2 | ✓ Closing fragment |
| 08-10 20:35 | 40m | -6 / +2 | OT4R | -19 / -6 | 6 | ✓ Full exchange observed |
| 08-10 20:34 | 40m | -5 / -5 | DK7UY | -14 / +7 | 3 | ✓ Full exchange observed |
| 08-10 20:31 | 40m | - / -9 | DG0JJH | -13 / - | 4 | ✓ Closing fragment |
| 08-10 20:30 | 40m | -5 / - | RX3ASQ | - / -16 | 2 | ✓ Closing fragment |
| 08-10 20:28 | 40m | -8 / - | PA4F | - / -15 | 2 | ✓ Closing fragment |
| 08-10 20:27 | 40m | -8 / - | SV1EKI | - / -9 | 2 | ✓ Closing fragment |
| 08-10 20:25 | 40m | -7 / - | DK3ME | -5 / -3 | 3 | ✓ Closing observed |
| 08-10 20:24 | 40m | -8 / - | DK8HC | - / -3 | 2 | Partial capture |
| 08-10 20:23 | 40m | -6 / - | MW7FKA | - / -23 | 2 | Partial capture |
| 08-10 20:22 | 40m | -6 / - | PD4PMS | - / -4 | 2 | ✓ Closing fragment |
| 08-10 20:20 | 40m | -8 / - | F1IQH | - / -10 | 2 | ✓ Closing fragment |
| 08-10 20:19 | 40m | -8 / -7 | SP7TF | -6 / +2 | 4 | ✓ Full exchange observed |
| 08-10 20:16 | 40m | -4 / - | LB6NK | - / -6 | 4 | ✓ Closing fragment |
| 08-10 20:03 | 40m | -12 / - | <...> | - / - | 3 | Partial capture |
| 08-10 19:52 | 40m | -11 / -2 | DL7ACA | +2 / +7 | 6 | ✓ Full exchange observed |
| 08-10 19:52 | 40m | -13 / - | HA9OA | +4 / +5 | 4 | Partial capture |
| 08-10 19:50 | 40m | -8 / - | 4X1UF | - / -20 | 4 | ✓ Closing fragment |
| 08-10 09:03 | 10m | - / -15 | LZ2VQ | -10 / - | 2 | Partial capture |
| 08-03 12:57 | 40m | -15 / - | EW4DX | - / -3 | 3 | Partial capture |
| 08-03 12:51 | 40m | -16 / - | EW4DX | - / -3 | 2 | Partial capture |
| 08-03 12:34 | 40m | -11 / - | F6FHZ | - / -4 | 2 | ✓ Closing fragment |
| 08-03 10:36 | 40m | -14 / - | HA7UL | - / -21 | 2 | ✓ Closing fragment |
| 08-03 10:34 | 40m | - / - | HA1BL | -17 / - | 2 | ✓ Closing fragment |
| 07-25 15:17 | 40m | -17 / -4 | SQ9BDB | -17 / -10 | 4 | ✓ Full exchange observed |
| 07-25 14:53 | 40m | - / - | OZ4SOP | -19 / - | 2 | Partial capture |
| 07-25 14:51 | 40m | -18 / - | OE7LVI | - / -5 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 134100 -9 379 DH0DX UR4QWW KN77 134530 -20 1497 DH0DX RW3XB KO84 134530 -12 1220 DH0DX F1PSX JN08 204700 -3 1885 DH0DX YO4NF -11 (x2) 205100 -8 1881 DH0DX 9A4ZM JN86 (x3)
UTC dB Audio Message 203530 -19 1475 DH0DX OT4R +02 203545 -4 935 SP3JHZ DH0DX RR73 203600 -19 1475 DH0DX OT4R +02 203615 -8 935 OT4R DH0DX R-06 203630 -18 1475 DH0DX OT4R RR73 203645 -4 935 OT4R DH0DX 73 203715 -6 935 SO5WD DH0DX -14 (x2) 203815 -8 935 CQ DH0DX JO41 203845 -9 935 DG9ZL DH0DX -14 (x2) 203945 -8 935 DK2BK DH0DX -19 (x2) 204045 -8 935 RA4FUT DH0DX -20 (x2)
UTC dB Audio Message 090300 -15 1182 DH0DX LZ2VQ KN23 (x2)
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
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