DB3MB — 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: JO60

Receiver-side FT8 activity involving DB3MB, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-08 and 2026-10-13.

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 9 FT8 messages attributed to DB3MB 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 (89%), followed by 80 m (11%). In this small sample, the estimated median decoder S/N was -7 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 1 40m · 8

First attributed message: 2026-08-08
Last attributed message: 2026-10-13 17:42 UTC

Observed FT8 message patterns

Attributed sample: 9 messages
Active dates: 3 UTC dates
Estimated median S/N: -7 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 7.

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).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with DB3MB in decoded directed-looking exchanges:

G0FHT · England M7CYY · England DJ2MS · Fed. Rep. of Germany

Most frequent locator attributed to DB3MB

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: JO60 · 8 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 628 km (approx.)
Last such locator decoded: 2026-10-13 17:42 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	DB3MB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-13 17:41	40m	-8 / -18	PD2MVL	-10 / -	5	Partial capture
10-13 17:32	40m	-5 / -	HA1BF	- / -	3	Partial capture
10-13 17:30	40m	-5 / -	G8KHF	- / -	2	Partial capture
08-12 19:41	80m	-24 / -19	DB100FT	+3 / +7	2	Partial capture
08-09 14:10	20m	- / -11	F1PBZ	-10 / -	2	Partial capture
08-09 11:56	20m	- / -13	LY2TS	-21 / -	3	Partial capture
08-08 18:55	40m	-8 / -8	MX0HFC	-14 / -	6	Partial capture
08-08 18:53	20m	- / -6	G0FHT	-10 / -	2	✓ Closing fragment
08-08 18:04	20m	- / -8	M7CYY	-16 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
185700 -13 1604  DB3MB MX0HFC -08 (x4)
173045  -7  637  G8KHF DB3MB JO60 (x2)
173245  -3 2537  HA1BF DB3MB JO60 (x3)
174130 -10 2337  PD2MVL DB3MB JO60
174145 -14 2188  DB3MB PD2MVL -18
174200  -7 2337  PD2MVL DB3MB JO60
174215  -9 2188  DB3MB PD2MVL -08 (x2)
174315  -8 1068  DB3MB DJ2MS RR73

80m

UTC    dB Audio  Message
194145  +3 1311  DB3MB DB100FT -19
194200 -24 1311  DB100FT DB3MB R+07

20m

UTC    dB Audio  Message
180445 -17 1983  DB3MB M7CYY IO70 (x3)
185330 -11  518  DB3MB G0FHT -06 (x2)
115645 -19 1739  DB3MB LY2TS -13 (x3)
135545  -6 2420  DB3MB RN6MA -06
141045 -11 2572  DB3MB F1PBZ R-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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