DJ7TF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DJ7TF, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-09-14.
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 10 FT8 messages attributed to DJ7TF as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (80%), followed by 10 m (20%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-14 15:04 UTC
Observed FT8 message patterns
- Attributed sample
- 10 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -15 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 3.
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 DJ7TF 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 DJ7TF
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
- JN47 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 975 km (approx.)
- Last such locator decoded
- 2026-09-14 15:00 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 | DJ7TF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-14 15:02 | 40m | -5 / -8 | DL2YBG | -11 / - | 4 | ✓ Closing observed |
| 09-14 15:00 | 40m | - / - | DL7GW | -17 / - | 3 | Partial capture |
| 09-14 15:00 | 40m | - / - | DL6AUK | -8 / - | 2 | Partial capture |
| 09-14 15:00 | 40m | - / - | OE8PIT | -10 / - | 4 | Partial capture |
| 07-08 05:26 | 40m | -20 / - | MM0KQC | - / -3 | 2 | ✓ Closing fragment |
| 07-06 19:14 | 20m | - / -6 | MW7RHR | -17 / - | 2 | ✓ Closing fragment |
| 06-26 10:22 | 10m | - / -19 | F5RMK | -12 / - | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 150030 -10 1038 DJ7TF OE8PIT JN66 150030 -20 1137 DJ7TF DL7GW JO62 150030 -7 2403 DJ7TF DL6AUK JN47 150045 -10 1039 CQ DJ7TF JN47 150100 -12 1038 DJ7TF OE8PIT JN66 150100 -14 1138 DJ7TF DL7GW JO62 150115 -8 1039 ON1DGN DJ7TF R+07 150130 -12 1038 DJ7TF OE8PIT JN66 150130 -18 1138 DJ7TF DL7GW JO62 150200 -12 1407 DJ7TF DL2YBG JO42 (x2) 150245 -5 1038 DL2YBG DJ7TF RRR 150300 -4 2735 DJ7TF HF7X KO01 150300 -8 1407 DJ7TF DL2YBG 73 150415 -11 1039 IZ8PPI DJ7TF R-14
UTC dB Audio Message 191415 -20 2053 DJ7TF MW7RHR -06 (x2) 081730 -14 1023 DJ7TF OS9T -18
UTC dB Audio Message 100645 -19 2242 MI0JZZ DJ7TF JN47 102215 -13 2102 DJ7TF F5RMK -19 (x6)
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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