DM4ST — 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 DM4ST, decoded by SO8OO in southeastern Poland. 58 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-10-02 and 2026-10-16.

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 58 FT8 messages attributed to DM4ST as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). Several six-hour UTC windows tied for the largest share (64%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

58
Messages attributed
3
UTC dates decoded
11
Active 15-min windows
-11 dB
Estimated median S/N

Bands

40m · 58
First attributed message: 2026-10-02
Last attributed message: 2026-10-16 15:35 UTC

Observed FT8 message patterns

Attributed sample
58 messages
Active dates
3 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-22 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 19.

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 DM4ST 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 DM4ST

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 · 37 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
770 km (approx.)
Last such locator decoded
2026-10-16 15:35 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 UTCBandDM4ST S/NCounterpartCounterpart S/NMsgsCapture
10-16 15:35 40m -12 / -11 DJ2MS -8 / - 4 Partial capture
10-16 15:34 40m -10 / - IZ4OSH - / - 2 Partial capture
10-03 09:18 40m -18 / - DB2HA -3 / - 4 ✓ Full exchange observed
10-03 09:10 40m - / - 9A4ZM -8 / - 2 Partial capture
10-03 09:08 40m -21 / +3 HA1BF +4 / - 5 ✓ Closing observed
10-03 09:00 40m -16 / -3 HA1ZW -8 / - 6 ✓ Closing observed
10-03 08:44 40m -23 / -12 R2FBW -19 / -1 7 ✓ Full exchange observed
10-03 08:41 40m -23 / +1 OE6PVG -4 / - 7 ✓ Full exchange observed
10-03 08:32 40m -23 / - UT4PA +4 / -10 2 Partial capture
10-03 08:31 40m - / -4 OT4R -18 / - 2 Partial capture
10-03 08:27 40m - / - OE3FVU -14 / - 6 Partial capture
10-03 08:24 40m - / -9 SQ3MQD -7 / - 3 ✓ Closing fragment
10-02 18:51 40m - / - UB1CCL -4 / - 2 Partial capture
10-02 18:46 40m +1 / +3 IQ4JO 0 / - 5 Partial capture
10-02 18:35 40m +2 / +8 9A4ZM -7 / +8 7 Partial capture
10-02 18:33 40m -4 / -3 F5PBG -6 / -17 6 ✓ Full exchange observed
10-02 18:30 40m +1 / - OE3OOG -9 / +1 3 Partial capture
10-02 18:22 40m -7 / +1 MW9VVX -19 / -19 4 ✓ Full exchange observed
10-02 18:17 40m -8 / - IK4RVY - / - 6 Partial capture
10-02 18:05 40m -9 / - M0ZJB - / - 7 Partial capture
10-02 18:00 40m -2 / - IK4UPK - / - 2 Partial capture
10-02 10:27 40m -13 / +8 DL4QB -12 / - 5 ✓ Full exchange observed
10-02 10:23 40m - / +5 DL7UKM -8 / - 4 ✓ Closing fragment
10-02 09:18 40m - / - 9A4ZM -5 / - 2 Partial capture
10-02 09:17 40m -15 / -9 OZ9FF -13 / -2 6 ✓ Full exchange observed
10-02 09:14 40m -19 / -4 DF3MT -13 / +3 4 ✓ Full exchange observed
09-21 16:34 40m - / -20 DK7ZT -8 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
091030  -8 2081  DM4ST 9A4ZM JN86 (x2)
091130 -19 2395  CD6MTG DM4ST JO50
091745  +6 2396  DM4ST UX7QV KN29
091800 -18 2395  DB2HA DM4ST +19
091815  -2 2396  DM4ST DB2HA R+19 (x3)
092145 -17 1619  DM4ST DG1RMY JO62
153400  -9 2145  IZ4OSH DM4ST JO50 (x2)
153500 -16 2145  DJ2MS DM4ST JO50 (x2)
153545  -6 1067  DM4ST DJ2MS -11 (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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