DB4MH — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving DB4MH, decoded by SO8OO in southeastern Poland. 35 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-10-19.
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 35 FT8 messages attributed to DB4MH 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 -20 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 35 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -20 dB
- Estimated 10th-90th percentile
- -24 to -19 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 34, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 0.
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 DB4MH in decoded directed-looking exchanges:
Most frequent locator attributed to DB4MH
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 · 15 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 920 km (approx.)
- Last such locator decoded
- 2026-10-19 10:31 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 | DB4MH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-19 10:34 | 40m | - / -1 | S53AK | -9 / - | 5 | ✓ Closing fragment |
| 10-19 10:31 | 40m | -20 / - | DL6EBC | - / -11 | 3 | ✓ Closing fragment |
| 10-19 10:31 | 40m | - / - | S53AK | -7 / - | 3 | Partial capture |
| 10-19 10:30 | 40m | -20 / -5 | OZ9FF | -14 / -8 | 3 | ✓ Full exchange observed |
| 10-19 10:27 | 40m | -18 / +1 | OE3KNS | -5 / -9 | 5 | Partial capture |
| 10-19 10:22 | 40m | -20 / +7 | PD0IFI | -14 / 0 | 6 | ✓ Full exchange observed |
| 10-19 10:19 | 40m | - / - | PD0IFI | -17 / - | 2 | Partial capture |
| 10-19 09:52 | 40m | -23 / - | W1AW/6 | - / -23 | 4 | Partial capture |
| 10-19 09:48 | 40m | -21 / - | DL2VEL | - / - | 3 | Partial capture |
| 10-19 09:46 | 40m | -19 / +2 | DF0TZ | -17 / -2 | 4 | ✓ Full exchange observed |
| 10-19 09:45 | 40m | -20 / +4 | DD0IPA | -20 / +1 | 4 | ✓ Full exchange observed |
| 10-19 09:34 | 40m | - / -1 | DL2USR | -10 / - | 3 | ✓ Closing fragment |
| 10-19 09:27 | 40m | - / 0 | DL9KM | -17 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 103015 -17 2317 DB4MH OZ9FF -05 103030 -20 1844 OZ9FF DB4MH R-08 103045 -12 2316 DB4MH OZ9FF RR73 103100 -6 1600 DB4MH S53AK JN76 (x2) 103130 -24 1844 DL6EBC DB4MH JN49 103200 -13 1600 DB4MH S53AK JN76 103200 -20 1844 DL6EBC DB4MH R-11 (x2) 103445 -8 1600 DB4MH S53AK JN76 (x5) 103830 -21 1844 DK1XAM DB4MH 73
UTC dB Audio Message 101145 -16 2483 DB4MH 5Z4VJ RR73
CW
No CW receptions recorded for this callsign in the last 30 days.
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