DF7YT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DF7YT, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-19.
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 17 FT8 messages attributed to DF7YT 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 -12 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 17 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -12 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 5.
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 DF7YT in decoded directed-looking exchanges:
Most frequent locator attributed to DF7YT
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
- JO42 · 4 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 934 km (approx.)
- Last such locator decoded
- 2026-08-19 19:58 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 | DF7YT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-19 19:57 | 40m | -8 / - | MI7JQH | - / -8 | 6 | Partial capture |
| 08-19 19:43 | 40m | - / - | DK7ZT | -11 / - | 2 | Partial capture |
| 08-19 19:35 | 40m | -15 / - | YO4GIY | - / -10 | 2 | ✓ Closing fragment |
| 08-19 19:30 | 40m | - / +9 | DK7ZT | -18 / - | 3 | Partial capture |
| 08-19 19:29 | 40m | -10 / - | SP7SZJ | - / -1 | 2 | Partial capture |
| 08-19 19:22 | 40m | -14 / - | DJ2MS | - / -6 | 3 | ✓ Closing fragment |
| 08-19 19:14 | 40m | -13 / - | DL9SK | - / +5 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 193100 -18 1906 DF7YT DK7ZT +09 (x2) 193500 -20 1108 YO4GIY DF7YT R-10 (x2) 193830 -13 1592 <...> DF7YT R-19 194015 -15 1529 DF7YT US3LX KN89 194230 -13 1592 PA0ARR DF7YT 73 194315 -13 1906 DF7YT DK7ZT +12 (x2) 195730 -7 893 MI7JQH DF7YT JO42 (x6)
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee