DM4AO — 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: JO54

Receiver-side FT8 activity involving DM4AO, decoded by SO8OO in southeastern Poland. 13 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-10-25.

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 13 FT8 messages attributed to DM4AO as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (85%), followed by 20 m (15%). In this small sample, the estimated median decoder S/N was 0 dB; no usual signal pattern is inferred.

Overview

13
Messages attributed
2
UTC dates decoded
4
Active 15-min windows
0 dB
Estimated median S/N

Bands

First attributed message: 2026-08-20
Last attributed message: 2026-10-25 16:34 UTC

Observed FT8 message patterns

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

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 13.

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).

Most frequent locator attributed to DM4AO

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
JO54 · 11 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
892 km (approx.)
Last such locator decoded
2026-10-25 16:34 UTC

Other locator fields attributed to this token: JO62 (1).

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 UTCBandDM4AO S/NCounterpartCounterpart S/NMsgsCapture
10-25 16:33 80m 0 / - RK3YWS/P - / - 2 Partial capture
10-25 16:31 80m -2 / - R8LCM/M - / - 5 Partial capture
10-25 16:23 80m - / - DL0HAM +1 / - 3 Partial capture
10-25 16:22 80m - / - DH3MIT +4 / - 3 Partial capture
10-25 16:22 80m - / - OE1DGW +2 / - 3 Partial capture
10-25 16:22 80m - / - OK1UOZ +12 / - 3 Partial capture
08-20 18:48 20m -1 / - R3DFE/M - / -6 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
162300  +8 1763  DM4AO OE1DGW JN88
162300  +2 1957  DM4AO DL0HAM +16
162300  +2 2299  DM4AO DH3MIT JN58
162330  -1 1763  DM4AO OE1DGW JN88
162330  -1 1957  DM4AO DL0HAM +16
162330  -1 2298  DM4AO DH3MIT JN58
162400  +3 1958  DM4AO DL0HAM +16
162945  +8  995  SP5DFK/QRP DM4AO JO54
163115  -3  775  <R8LCM/M> DM4AO JO54 (x4)
163345  +0 1795  RK3YWS/P DM4AO JO54 (x2)
163445  -6 1795  <R8LCM/M> DM4AO JO54
20m
UTC    dB Audio  Message
184845  -3 3050  R3DFE/M DM4AO JO62 (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.

CW

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

Explore CW reception at SO8OO

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