DL4MFF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DL4MFF, decoded by SO8OO in southeastern Poland. 59 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-14 and 2026-09-18.
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 59 FT8 messages attributed to DL4MFF as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (39%), followed by 60 m (39%) and 40 m (22%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (100%); the estimated median was +4 dB.
Overview
Bands
Last attributed message: 2026-09-18 18:15 UTC
Observed FT8 message patterns
- Attributed sample
- 59 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- +4 dB
- Estimated 10th-90th percentile
- -3 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 59.
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 DL4MFF 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 DL4MFF
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
- JN57 · 24 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 836 km (approx.)
- Last such locator decoded
- 2026-09-18 18:12 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 | DL4MFF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-18 18:15 | 80m | +2 / - | F6FHZ | - / -23 | 2 | ✓ Closing fragment |
| 09-18 18:13 | 80m | - / -24 | SV1DKR | -9 / - | 3 | ✓ Closing fragment |
| 09-18 18:11 | 80m | +11 / - | UB3ADO/P | - / -2 | 3 | Partial capture |
| 09-17 05:52 | 60m | +2 / +1 | DF1KG | -20 / 0 | 3 | ✓ Full exchange observed |
| 09-17 05:49 | 60m | +2 / - | ZL2AGY | - / -25 | 6 | ✓ Closing fragment |
| 09-16 21:02 | 60m | -2 / - | TF8KW | - / - | 12 | Partial capture |
| 09-14 19:27 | 80m | +6 / -6 | DO9BAU | 0 / +1 | 8 | ✓ Full exchange observed |
| 09-14 19:27 | 80m | +5 / +7 | UA4FKT | +11 / -3 | 6 | ✓ Full exchange observed |
| 09-14 19:24 | 80m | +8 / -9 | EW8ME | 0 / -15 | 7 | ✓ Full exchange observed |
| 09-14 19:16 | 80m | +4 / - | R3EDI | - / -14 | 3 | Partial capture |
| 09-14 19:13 | 80m | -5 / +4 | DL1DCT | -13 / +9 | 5 | ✓ Full exchange observed |
| 09-14 19:11 | 80m | +6 / -8 | RA2FU | -12 / -7 | 7 | ✓ Full exchange observed |
| 09-14 19:05 | 60m | +5 / - | <...> | - / +2 | 3 | Partial capture |
| 09-14 18:58 | 40m | +6 / +1 | SV9QWC | -15 / -9 | 4 | ✓ Full exchange observed |
| 09-14 18:53 | 40m | +1 / -3 | US2YW | +1 / - | 6 | ✓ Full exchange observed |
| 09-14 18:52 | 40m | +8 / - | DF4JY | - / -16 | 3 | ✓ Closing fragment |
| 09-14 18:48 | 40m | +8 / - | JA0LFV | -18 / -13 | 6 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 192845 +10 480 DL4MFF UA4FKT 73 192845 +3 2302 DL4MFF DO9BAU JO62 192900 +5 480 DO9BAU DL4MFF +01 192915 -8 2302 DL4MFF DO9BAU R-06 192930 +6 480 DO9BAU DL4MFF RR73 192945 +1 2302 DL4MFF DO9BAU 73 181130 +12 480 UB3ADO/P DL4MFF JN57 (x2) 181215 -12 1809 DL4MFF DL/AD2LX -05 181230 +11 480 UB3ADO/P DL4MFF R-02 181315 -3 1472 DL4MFF SV1DKR KM18 (x3) 181500 +1 480 F6FHZ DL4MFF -23 (x2)
UTC dB Audio Message 210530 -2 508 TF8KW DL4MFF JN57 (x6) 054915 +3 508 ZL2AGY DL4MFF R-25 (x6) 055215 +3 509 DF1KG DL4MFF +00 055230 -20 1160 DL4MFF DF1KG R+01 055245 +1 509 DF1KG DL4MFF RR73
UTC dB Audio Message 185015 -18 2343 DL4MFF JA0LFV RR73 185030 +7 513 JA0LFV DL4MFF 73 185200 +8 513 DF4JY DL4MFF -16 (x3) 185315 +8 512 DL4MFF US2YW KN28 (x2) 185400 +1 513 US2YW DL4MFF +11 185415 -3 512 DL4MFF US2YW R-03 185430 +1 513 US2YW DL4MFF RR73 185445 -5 512 DL4MFF US2YW 73 185845 +2 513 SV9QWC DL4MFF JN57 185900 -15 1040 DL4MFF SV9QWC +01 185915 +6 513 SV9QWC DL4MFF R-09 (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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee