DO4BMA — 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: JO50

Receiver-side FT8 activity involving DO4BMA, decoded by SO8OO in southeastern Poland. 54 FT8 messages attributed to this token as transmitter, on 80m, across 5 UTC dates in the available aggregate history. Observed between 2026-09-25 and 2026-10-18.

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 54 FT8 messages attributed to DO4BMA as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was -2 dB.

Overview

54
Messages attributed
5
UTC dates decoded
12
Active 15-min windows
-2 dB
Estimated median S/N

Bands

80m · 54
First attributed message: 2026-09-25
Last attributed message: 2026-10-18 18:47 UTC

Observed FT8 message patterns

Attributed sample
54 messages
Active dates
5 UTC dates
Estimated median S/N
-2 dB
Estimated 10th-90th percentile
-10 to +5 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 48.

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 DO4BMA 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 DO4BMA

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
JO50 · 17 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
770 km (approx.)
Last such locator decoded
2026-10-18 18:47 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 UTCBandDO4BMA S/NCounterpartCounterpart S/NMsgsCapture
10-18 18:46 80m +1 / - R8PG - / - 3 Partial capture
10-18 18:43 80m -6 / - PE1BOL - / -9 2 Partial capture
10-18 18:42 80m -11 / -11 SP9UPH +18 / - 4 ✓ Closing observed
10-18 18:41 80m -4 / - TF4M - / -12 2 ✓ Closing fragment
10-18 18:36 80m -5 / - DO5AX - / -7 4 Partial capture
10-18 18:32 80m - / -19 DO5AX -18 / - 2 Partial capture
10-18 18:26 80m +1 / - MM0ULL - / -13 3 ✓ Closing fragment
10-18 18:23 80m +1 / -6 IK1AIL -9 / - 5 ✓ Closing observed
10-18 18:22 80m 0 / - DA6WA -17 / - 3 ✓ Closing observed
10-18 18:20 80m -3 / - R9FAK - / - 2 Partial capture
10-11 20:21 80m -6 / - TF4M - / +5 2 ✓ Closing fragment
10-11 20:17 80m -12 / - RA4Y -6 / -16 9 Partial capture
10-11 20:16 80m - / -11 DO8JB -7 / - 2 ✓ Closing fragment
10-11 19:45 80m +6 / -9 SP5MXZ +17 / -6 6 ✓ Full exchange observed
10-11 19:36 80m +1 / - SM7TZK - / -3 6 ✓ Closing fragment
10-11 19:18 80m 0 / - PE1NPS -8 / - 2 Partial capture
10-11 19:14 80m +6 / - DL/AD2LX -3 / -7 2 Partial capture
10-11 19:13 80m +7 / - RD9M/3 - / -7 2 Partial capture
10-11 19:11 80m - / +4 SM4KYN -10 / - 5 ✓ Closing fragment
10-10 18:48 80m 0 / - ON4CAS - / - 3 Partial capture
09-26 20:05 80m -1 / - DO9BAU -7 / - 3 ✓ Closing observed
09-26 20:03 80m +4 / 0 UA4FKT +5 / +3 6 ✓ Full exchange observed
09-26 20:02 80m -1 / - LA1HW - / -11 3 ✓ Closing fragment
09-25 20:04 80m - / -16 SP7VCL -4 / - 2 Partial capture
09-25 20:00 80m -12 / - UA3ECJ - / - 2 Partial capture
09-20 19:14 80m - / -24 DK6WS -3 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
183615  -3 1551  DO5AX DO4BMA R-07 (x4)
184115  -2 1710  TF4M DO4BMA R-12 (x2)
184200 +16  431  DO4BMA SP9UPH JO90 (x2)
184245 -11 1710  SP9UPH DO4BMA RRR
184300 +18  432  DO4BMA SP9UPH 73
184345  -6 1710  PE1BOL DO4BMA -09 (x2)
184600  +0 1244  R8PG DO4BMA JO50 (x3)

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

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