DB3BD — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: Fed. Rep. of Germany Most frequent locator attributed to this token: JO31

Receiver-side FT8 activity involving DB3BD, decoded by SO8OO in southeastern Poland. 16 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-11-02 and 2026-11-04.

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 16 FT8 messages attributed to DB3BD 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 (56%), followed by 80 m (44%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.

Overview

16
Messages attributed
2
UTC dates decoded
4
Active 15-min windows
-17 dB
Estimated median S/N

Bands

First attributed message: 2026-11-02
Last attributed message: 2026-11-04 10:34 UTC

Observed FT8 message patterns

Attributed sample
16 messages
Active dates
2 UTC dates
Estimated median S/N
-17 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 7.

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 DB3BD in decoded directed-looking exchanges:

Most frequent locator attributed to DB3BD

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
JO31 · 5 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,054 km (approx.)
Last such locator decoded
2026-11-04 10:28 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 UTCBandDB3BD S/NCounterpartCounterpart S/NMsgsCapture
11-04 10:37 40m - / - DH2NJS -11 / - 4 Partial capture
11-04 10:29 40m -19 / -21 S53AK -10 / -24 15 ✓ Full exchange observed
11-04 10:28 40m -18 / - ON5VKE -22 / +8 5 ✓ Full exchange observed
11-02 20:45 80m -2 / - DK4OX - / - 2 Partial capture
11-02 20:43 80m - / - DL7ACN -10 / - 4 Partial capture
11-02 20:40 80m +10 / +1 OH6FSO -9 / -16 5 ✓ Full exchange observed
11-02 20:39 80m 0 / - S53R - / - 2 Partial capture
11-02 20:36 80m -2 / -3 SP9UPH +10 / -6 5 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

40m
UTC    dB Audio  Message
103145 -10 1316  DB3BD S53AK JN76
103200 -19 2164  S53AK DB3BD -19
103215 -15 1316  DB3BD S53AK JN76 (x2)
103300 -19 2164  S53AK DB3BD -15
103315 -11 1316  DB3BD S53AK R-21
103330 -18 2164  S53AK DB3BD RR73
103345 -16 1316  DB3BD S53AK R-21
103400 -20 2164  S53AK DB3BD RR73
103415 -12 1315  DB3BD S53AK 73
103415 -11 2164  DB3BD DH2NJS JO50 (x5)
80m
UTC    dB Audio  Message
203715  -6  920  SP9UPH DB3BD 73
203730 +10  237  DB3BD DO1ID +02
203930  -2  554  S53R DB3BD JO31 (x2)
204045 -11 2847  DB3BD OH6FSO +01 (x3)
204330 +10 2847  OH6FSO DB3BD R-16
204345  -7 1892  DB3BD DL7ACN JN49
204415 -14 2847  DB3BD OH6FSO RR73
204445  -8 1892  DB3BD DL7ACN JN49 (x2)
204545  +0  947  DK4OX DB3BD JO31 (x2)
204645  -9 1892  DB3BD DL7ACN JN49
10m
UTC    dB Audio  Message
105600 -10 1119  DB3BD DG8DQ +10

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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee