DO9MK — 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 DO9MK, decoded by SO8OO in southeastern Poland. 94 FT8 messages attributed to this token as transmitter, on 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-08-30.

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 94 FT8 messages attributed to DO9MK as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Several six-hour UTC windows tied for the largest share (85%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

10m · 94

First attributed message: 2026-07-21
Last attributed message: 2026-08-30 10:38 UTC

Observed FT8 message patterns

Attributed sample: 94 messages
Active dates: 6 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -12 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 41, 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 DO9MK in decoded directed-looking exchanges:

HB9ACA · Switzerland IZ3NVR · Italy

Most frequent locator attributed to DO9MK

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 · 60 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,054 km (approx.)
Last such locator decoded: 2026-08-30 10:38 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	DO9MK S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 10:35	10m	-10 / -	LZ1EV	- / 0	2	Partial capture
08-28 08:41	10m	- / +4	HB9ACA	-14 / -	2	✓ Closing fragment
08-28 08:26	10m	-11 / -	IZ3NVR	- / -	3	✓ Closing fragment
08-28 08:21	10m	- / -15	DL3MIB	+2 / -	5	Partial capture
08-28 08:20	10m	- / -26	IK4JPP	-4 / -	2	Partial capture
08-28 08:20	10m	- / -10	IK4TVP	-15 / -	4	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
082130  +3 1067  DO9MK DL3MIB JN57 (x4)
082415  -8  469  CQ DO9MK JO31 (x3)
082615 -12  469  IZ3NVR DO9MK JO31 (x3)
084100 -16 2283  DO9MK HB9ACA +04 (x2)
103515 -11  469  LZ1EV DO9MK JO31 (x2)
103845  -6  469  <...> DO9MK JO31

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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