DB3MR — 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 DB3MR, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-10-08 and 2026-10-12.

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 17 FT8 messages attributed to DB3MR as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (59%), followed by 80 m (41%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-15 dB

Estimated median S/N

Bands

80m · 7 40m · 10

First attributed message: 2026-10-08
Last attributed message: 2026-10-12 14:17 UTC

Observed FT8 message patterns

Attributed sample: 17 messages
Active dates: 2 UTC dates
Estimated median S/N: -15 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 5.

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 DB3MR in decoded directed-looking exchanges:

PE1NPS · Netherlands ×2 9A4ZM · Croatia DK8HC · Fed. Rep. of Germany HG0NPJ · Hungary LY2BOK · Lithuania OK1VM · Czech Republic PD9OH · Netherlands DK1GP · Fed. Rep. of Germany DL6EL · Fed. Rep. of Germany

Most frequent locator attributed to DB3MR

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 · 2 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 841 km (approx.)
Last such locator decoded: 2026-10-12 14:15 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	DB3MR S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-12 14:23	40m	- / +10	OK1VM	+12 / -	2	✓ Closing fragment
10-12 14:17	40m	- / -	DL9KM	-5 / -	7	Partial capture
10-12 14:16	40m	-16 / -4	PE1NPS	-9 / +3	4	✓ Full exchange observed
10-12 14:16	40m	- / -	DK7ZT	-3 / -	4	Partial capture
10-12 14:16	40m	- / -	OE9GWV	-12 / -	7	Partial capture
10-12 14:14	40m	-15 / +2	LY2BOK	+2 / -4	7	✓ Full exchange observed
10-12 14:12	40m	- / -	DK8HC	-10 / -	2	✓ Closing fragment
10-12 14:10	40m	-16 / -5	HG0NPJ	+4 / -10	5	✓ Full exchange observed
10-12 14:08	40m	-16 / -11	9A4ZM	-2 / -7	4	✓ Full exchange observed
10-12 14:08	40m	-14 / +10	PD9OH	-14 / +5	4	✓ Full exchange observed
10-12 14:07	40m	- / -	DK7ZT	-1 / -	3	Partial capture
10-08 18:46	80m	- / -	DA6WA	-8 / -	2	Partial capture
10-08 18:45	80m	+2 / -12	PE1NPS	-8 / -14	9	✓ Full exchange observed
10-08 18:44	80m	-9 / -	DK1GP	-16 / -21	8	✓ Closing observed
10-08 18:43	80m	- / -	DA6WA	-12 / -	2	Partial capture
10-08 18:42	80m	- / +8	DL6EL	+5 / -	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
141715  -5 2489  DB3MR DK7ZT +23
141745 -12 1483  DB3MR OE9GWV JN47
141745  -5 1372  DB3MR DL9KM JN68
141745  -1 2489  DB3MR DK7ZT +23
141815 -12 1483  DB3MR OE9GWV JN47
141815  -9 1372  DB3MR DL9KM JN68
141845 -15 1483  DB3MR OE9GWV JN47
141845  -3 1373  DB3MR DL9KM JN68
141915 -13 1483  DB3MR OE9GWV JN47
141915  -1 1372  DB3MR DL9KM JN68 (x3)
142330 +12 2783  DB3MR OK1VM +10 (x2)
142530 -18 1983  DB3MR DL1DCT JO31

80m

UTC    dB Audio  Message
184530  -3 2153  DK1GP DB3MR RR73
184545  -7  502  DB3MR PE1NPS JO22
184545 -19 2153  DB3MR DK1GP 73
184615  -6  502  DB3MR PE1NPS JO22
184615 -12 2153  DB3MR DK1GP 73
184615 -10 2549  DB3MR DA6WA JO30
184630  +3  504  PE1NPS DB3MR -14
184645 -10  502  DB3MR PE1NPS JO22
184645 -16 2153  DB3MR DK1GP 73
184645  -6 2549  DB3MR DA6WA JO30
184700  +7  502  PE1NPS DB3MR -14
184715 -10  502  DB3MR PE1NPS R-12
184715 -16 2153  DB3MR DK1GP 73
184730  -4  502  PE1NPS DB3MR RR73
184745  -5  502  DB3MR PE1NPS 73

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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