DL1GBT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DL1GBT, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-10 and 2026-09-17.
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 29 FT8 messages attributed to DL1GBT as the transmitting token by decoded message structure across 2 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 -10 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 29 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -13 to -3 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 17, strong (≥ -8 dB) 11.
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 DL1GBT in decoded directed-looking exchanges:
Most frequent locator attributed to DL1GBT
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
- JN49 · 22 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 920 km (approx.)
- Last such locator decoded
- 2026-09-17 17:54 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 | DL1GBT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-17 17:55 | 40m | -5 / - | SM3MLX | - / -8 | 2 | ✓ Closing fragment |
| 09-17 17:53 | 40m | -10 / - | BU2FW | - / - | 2 | Partial capture |
| 09-17 17:52 | 40m | -8 / - | SV1DZB | - / +2 | 2 | ✓ Closing fragment |
| 09-17 17:49 | 40m | -9 / - | S55X | - / - | 3 | Partial capture |
| 09-17 17:46 | 40m | -7 / - | RX3ASQ | -2 / -1 | 5 | ✓ Closing observed |
| 09-17 17:45 | 40m | -6 / - | UB3BCE | - / - | 2 | Partial capture |
| 09-17 17:42 | 40m | - / -13 | I0XNH | -4 / - | 2 | ✓ Closing fragment |
| 09-17 17:36 | 40m | - / -21 | DK7ZT | -6 / - | 2 | Partial capture |
| 09-17 17:34 | 40m | -12 / -14 | LY2TS | -4 / - | 5 | ✓ Closing observed |
| 09-17 17:32 | 40m | -8 / - | OZ9FF | - / - | 3 | Partial capture |
| 09-17 17:29 | 40m | -10 / - | S55X | - / - | 2 | Partial capture |
| 09-11 10:59 | 40m | - / -11 | OK3MB | -14 / - | 3 | ✓ Closing fragment |
| 09-10 16:09 | 40m | -10 / - | SP4MPH | - / - | 3 | Partial capture |
| 09-10 16:05 | 40m | - / -13 | F5RRS | +6 / - | 7 | ✓ Closing fragment |
| 09-10 16:04 | 40m | - / -21 | PD2MAC | -12 / - | 2 | ✓ Closing fragment |
| 09-10 15:50 | 40m | - / -13 | OZ9FF | 0 / - | 2 | ✓ Closing fragment |
| 09-10 15:40 | 40m | - / -6 | G4DZE | -9 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 174530 -3 2617 UB3BCE DL1GBT JN49 174600 -2 2617 RX3ASQ DL1GBT JN49 (x2) 174645 +0 1132 DL1GBT RX3ASQ RR73 (x2) 174730 -11 2617 RX3ASQ DL1GBT 73 174930 -11 2617 S55X DL1GBT JN49 (x3) 175230 -8 2617 SV1DZB DL1GBT R+02 (x2) 175330 -11 2617 BU2FW DL1GBT JN49 (x2) 175500 -6 2617 SM3MLX DL1GBT R-08 (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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