DB1NAC — 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 DB1NAC, decoded by SO8OO in southeastern Poland. 52 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-13 and 2026-10-21.

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 52 FT8 messages attributed to DB1NAC as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (33%) and 10 m (12%). The busiest six-hour window was 07:00-13:00 UTC, containing 44% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 17 60m · 3 40m · 26 10m · 6

First attributed message: 2026-06-13
Last attributed message: 2026-10-21 02:18 UTC

Observed FT8 message patterns

Attributed sample: 52 messages
Active dates: 6 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -16 to +12 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 18, strong (≥ -8 dB) 28.

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 DB1NAC in decoded directed-looking exchanges:

F6BHK · France DD6ZV · Fed. Rep. of Germany DK8HC · Fed. Rep. of Germany HG8LXL · Hungary

Most frequent locator attributed to DB1NAC

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 · 21 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 770 km (approx.)
Last such locator decoded: 2026-10-21 02:18 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	DB1NAC S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 02:19	80m	- / -	R4FDK	+6 / -	4	Partial capture
10-21 02:18	80m	- / -	UA3VVA	-3 / -	9	Partial capture
10-21 02:16	80m	+6 / -3	DK8HC	0 / -4	6	✓ Full exchange observed
10-21 02:16	80m	- / -	DO1OAS	-1 / -	7	Partial capture
10-21 02:16	80m	- / -	RX3ASQ	0 / -	3	Partial capture
10-21 02:13	80m	- / -	HA7TM	+12 / -	3	Partial capture
10-21 02:12	80m	- / -	9A60CBM	0 / -	4	Partial capture
10-21 02:11	80m	+17 / -	G3TKT	-9 / -11	8	Partial capture
10-21 02:11	80m	- / -2	F1PBZ	+5 / -	4	Partial capture
10-21 02:11	80m	+6 / +4	HG8LXL	+9 / +7	7	✓ Full exchange observed
10-21 02:09	80m	+12 / -	VE2LBI	- / -	3	Partial capture
10-06 19:39	40m	- / -6	LY5J	-4 / -	2	Partial capture
10-06 19:39	40m	-8 / -1	F6BHK	-1 / -6	5	✓ Full exchange observed
10-06 10:25	60m	-8 / -	DD6ZV	-6 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
021900 -10 1191  DB1NAC UA3VVA LO06
021900  -1 1109  DB1NAC RX3ASQ KO95
021900  +3  567  DB1NAC R4FDK LO23
021900  -3 2645  DB1NAC DO1OAS JO51
021930  -9 1191  DB1NAC UA3VVA LO06
021930  -9 2645  DB1NAC DO1OAS JO51
022000  -4 1191  DB1NAC UA3VVA LO06
022000  +6  567  DB1NAC R4FDK LO23
022030  -3 1191  DB1NAC UA3VVA LO06
022030  +8  568  DB1NAC R4FDK LO23
022130  -1 1191  DB1NAC UA3VVA LO06
022130  +7  568  DB1NAC R4FDK LO23
022200  +1 1191  DB1NAC UA3VVA LO06 (x3)

40m

UTC    dB Audio  Message
193830 -15 1244  CQ DB1NAC JO50
193845  -7 1244  DB1NAC LY4Q KO24
193915  +0 2805  DB1NAC F6BHK JN24
193930 -11 2804  F6BHK DB1NAC -06
193945  -9 1249  DB1NAC LY5J -06
193945  -2 2805  DB1NAC F6BHK R-01
194000  -4 2805  F6BHK DB1NAC RR73 (x2)
194045  +2 2808  DB1NAC LY5J -06
194100  -5 2805  CQ DB1NAC JO50

60m

UTC    dB Audio  Message
102545  -2  526  DB1NAC DD6ZV JO62
102630  -8  527  DD6ZV DB1NAC RR73
102645 -10  527  DB1NAC DD6ZV 73
102700  -7  526  DD6ZV DB1NAC 73
102730  -3  526  CQ DB1NAC JO50

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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