DB3KO — 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: JO53

Receiver-side FT8 activity involving DB3KO, decoded by SO8OO in southeastern Poland. 32 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-30.

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 32 FT8 messages attributed to DB3KO as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (59%), followed by 20 m (41%). Most decodes (53%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 19 20m · 13

First attributed message: 2026-06-08
Last attributed message: 2026-10-30 12:32 UTC

Observed FT8 message patterns

Attributed sample: 32 messages
Active dates: 4 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -24 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 13, strong (≥ -8 dB) 9.

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 DB3KO in decoded directed-looking exchanges:

DD1OO · Fed. Rep. of Germany HA1BF · Hungary SP5ISM · Poland

Most frequent locator attributed to DB3KO

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: JO53 · 19 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 841 km (approx.)
Last such locator decoded: 2026-10-30 12:32 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	DB3KO S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 10:12	40m	- / +2	DM5ME	-16 / -	2	Partial capture
11-05 10:10	40m	- / -7	DD1OO	-14 / -	2	✓ Closing fragment
11-05 10:09	40m	- / -17	UT5MB	-10 / -	2	Partial capture
10-30 12:25	40m	-22 / +6	SP5ISM	-18 / -	4	✓ Closing observed
10-30 12:20	40m	-21 / -	HA1BF	-8 / -	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
122015 -21 1323  HA1BF DB3KO JO53
122100  -8 1122  DB3KO HA1BF RR73
122545 -21 1323  SP5ISM DB3KO JO53
122600 -17 1824  DB3KO SP5ISM +06 (x2)
122645 -22 1324  SP5ISM DB3KO 73
123245 -21 1430  OZ1CVS DB3KO JO53
100945  -9 1426  DB3KO UT5MB -17
101045 -13 1424  DB3KO DD1OO R-07 (x2)
101145 -11 1427  DB3KO UT5MB -16
101245 -14 1130  DB3KO DM5ME JO52 (x2)

CW

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

Explore CW reception at SO8OO

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