UB3DVS — 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: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving UB3DVS, decoded by SO8OO in southeastern Poland. 38 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-11-05.

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 38 FT8 messages attributed to UB3DVS 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 (89%), followed by 20 m (11%). Several six-hour UTC windows tied for the largest share (87%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

40m · 34 20m · 4

First attributed message: 2026-06-11
Last attributed message: 2026-11-05 18:14 UTC

Observed FT8 message patterns

Attributed sample: 38 messages
Active dates: 4 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -18 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 21, 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.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with UB3DVS in decoded directed-looking exchanges:

DL3MIB · Fed. Rep. of Germany DM3VPJ · Fed. Rep. of Germany EU1FQ · Belarus F8MRQ · France OE3RWR · Austria PE1NPS · Netherlands R4ADE · European Russia R6DZR · European Russia R6LKG · European Russia R6ML · European Russia RC2N · European Russia RC5F · European Russia

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to UB3DVS

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: KO85 · 15 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-11-04 04:34 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	UB3DVS S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-05 18:14	40m	- / -15	PE1NPS	-7 / -	4	✓ Closing fragment
11-05 18:09	40m	- / 0	DM3VPJ	-9 / -	3	✓ Closing fragment
11-05 18:07	40m	- / -7	R6DZR	-6 / -	2	✓ Closing fragment
11-04 04:38	40m	- / -19	GM6URC	-24 / -	2	Partial capture
11-04 04:35	40m	-2 / -	SV1DKR	-11 / -4	3	✓ Closing observed
11-04 04:34	40m	-17 / -	R4ADE	- / -14	3	✓ Closing fragment
11-04 04:20	40m	- / +1	DL3MIB	-16 / -	7	✓ Closing fragment
11-04 04:18	40m	- / -22	F8MRQ	+4 / -	5	✓ Closing fragment
11-03 16:52	40m	-17 / -	PA40EUDXF	- / +2	2	Partial capture
11-03 16:36	40m	-8 / -14	R2ZDO	-10 / -	2	Partial capture
11-03 16:30	40m	- / -1	OE3RWR	-9 / -	3	✓ Closing fragment
11-03 16:29	40m	- / +1	R6ML	-11 / -	4	✓ Closing fragment
11-03 16:28	40m	-12 / +10	RC5F	-10 / -	3	✓ Closing observed
11-03 16:26	40m	-15 / -	R4LBP	- / -6	2	Partial capture
11-03 15:32	40m	-12 / -	R3DID	- / -	3	Partial capture
11-03 14:55	40m	-17 / -	RC2N	- / -16	4	✓ Closing fragment
11-03 14:40	40m	-10 / -	UI6O	- / -9	4	✓ Closing fragment
11-03 14:37	40m	-15 / -	UA4FKT	-8 / +1	3	✓ Closing observed
11-03 14:29	40m	-12 / -	UB3YCK	- / -	2	Partial capture
11-03 14:25	40m	-10 / -	R6LKG	- / -20	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
043545 -11  751  UB3DVS SV1DKR KM18
043630  -1  874  SV1DKR UB3DVS -04 (x2)
043815 -24 1317  UB3DVS GM6URC -19 (x2)
180730  -5 1239  UB3DVS R6DZR -07 (x2)
180930 -12 1595  UB3DVS DM3VPJ JO50 (x3)
181415 -14  670  EU1FQ UB3DVS RR73
181430 -11 2294  UB3DVS PE1NPS JO22 (x4)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee