UA0YDB — 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: Asiatic Russia Most frequent locator attributed to this token: NO71

Receiver-side FT8 activity involving UA0YDB, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-26 and 2026-09-29.

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 14 FT8 messages attributed to UA0YDB 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 (100%). In this small sample, the estimated median decoder S/N was -19 dB; no usual signal pattern is inferred.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

40m · 14

First attributed message: 2026-09-26
Last attributed message: 2026-09-29 01:13 UTC

Observed FT8 message patterns

Attributed sample: 14 messages
Active dates: 2 UTC dates
Estimated median S/N: -19 dB
S/N percentile sample: Too small
Recurring-pattern threshold: Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 0.

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 UA0YDB in decoded directed-looking exchanges:

R3SV · European Russia R5DT · European Russia RA3QTT · European Russia RU3SD · European Russia RW9AW · Asiatic Russia RY3K · European Russia RZ3DX · European Russia UA4FKT · European Russia 9A3K · Croatia 9A5CW · Croatia EB3JT · Spain IU8RFW · Italy

Most frequent locator attributed to UA0YDB

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: NO71 · 3 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 4,935 km (approx.)
Last such locator decoded: 2026-09-29 01:13 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	UA0YDB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 00:31	160m	- / -	RA3RDN	-10 / -	2	Partial capture
10-23 00:26	160m	- / -18	R3SV	+2 / -	5	✓ Closing fragment
10-23 00:22	160m	- / 0	RW9AW	-4 / -	4	✓ Closing fragment
10-22 16:34	160m	- / -14	UA4FKT	-10 / -	3	✓ Closing fragment
10-22 15:48	160m	- / -14	RU3SD	+1 / -	5	✓ Closing fragment
10-22 15:38	160m	- / -22	RZ3DX	-4 / -	2	✓ Closing fragment
10-22 15:38	160m	- / -	RJ6B	-4 / -	4	Partial capture
10-22 15:32	160m	- / -	RJ6B	-6 / -	5	Partial capture
10-22 15:28	160m	- / -19	RY3K	-3 / -	4	✓ Closing fragment
10-22 15:24	160m	- / -	RA1QD	-12 / -	2	Partial capture
10-22 15:20	160m	- / -	UA3EDQ	0 / -	2	Partial capture
10-22 15:18	160m	- / -23	R5DT	-5 / -	3	✓ Closing fragment
10-22 15:17	160m	- / -	RJ6B	-19 / -	4	Partial capture
10-22 14:35	160m	- / -	RZ6BS	-22 / -	3	Partial capture
10-19 16:18	160m	- / -	RA3QTT	-2 / -	2	Partial capture
10-19 15:39	160m	- / +2	R2SDZ	-16 / -	2	Partial capture
09-29 01:13	40m	- / -13	F4CQS	-9 / -	5	Partial capture
09-29 01:08	40m	- / -	PA3KUS	-5 / -	11	Partial capture
09-29 01:08	40m	- / -	RA3DFQ	-9 / -	13	Partial capture
09-29 01:02	40m	- / -1	OS4K	-7 / -	3	Partial capture
09-29 01:01	40m	- / -	PE1NPS	-5 / -	4	Partial capture
09-29 00:55	40m	- / -	PA3KUS	-4 / -	3	Partial capture
09-29 00:55	40m	- / -	SP5EXA	-11 / -	4	Partial capture
09-26 01:15	40m	- / -19	EB3JT	-13 / -	4	✓ Closing fragment
09-26 01:08	40m	- / -1	9A3K	-6 / -	3	✓ Closing fragment
09-26 01:06	40m	-20 / +2	RZ4FWA	-16 / -1	7	✓ Full exchange observed
09-26 01:03	40m	-21 / -8	9A5CW	-6 / +1	8	✓ Full exchange observed
09-26 01:03	40m	-18 / -3	RV0AR	-14 / +2	7	✓ Full exchange observed
09-26 01:02	40m	- / -	9A3K	+7 / -	2	Partial capture
09-26 01:02	40m	-20 / -20	IU8RFW	-17 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
155045  +1 2052  UA0YDB RU3SD 73
163430 -10  695  UA0YDB UA4FKT LO23 (x3)
002245  -7 1090  UA0YDB RW9AW MO05 (x4)
002645  -3 1746  UA0YDB R3SV LO04 (x5)
003145 -12 1820  UA0YDB RA3RDN LO02 (x2)

40m

UTC    dB Audio  Message
011315 -12  675  UA0YDB PA3KUS JO21
011315 -14 2234  UA0YDB F4CQS -13
011330 -21 2234  CQ UA0YDB NO71                        a1
011345  -9 1777  UA0YDB RA3DFQ KO86
011345 -10  675  UA0YDB PA3KUS JO21
011345 -11 2233  UA0YDB F4CQS -13
011415  -8 1777  UA0YDB RA3DFQ KO86
011415  -2  675  UA0YDB PA3KUS JO21
011415  -9 2233  UA0YDB F4CQS -13
011445  -9 1777  UA0YDB RA3DFQ KO86
011445  -2  675  UA0YDB PA3KUS JO21
011445  -7 2233  UA0YDB F4CQS -13
011515  -4 1777  UA0YDB RA3DFQ KO86
011515  -6 2233  UA0YDB F4CQS -13
011545 -17 1777  UA0YDB RA3DFQ KO86

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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