UB3AVN — 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 UB3AVN, decoded by SO8OO in southeastern Poland. 278 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-04.

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 278 FT8 messages attributed to UB3AVN as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (71%), followed by 20 m (29%). Most decodes (82%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

278

Messages attributed

UTC dates decoded

Active 15-min windows

-12 dB

Estimated median S/N

Bands

40m · 198 20m · 80

First attributed message: 2026-06-06
Last attributed message: 2026-09-04 20:53 UTC

Observed FT8 message patterns

Attributed sample: 278 messages
Active dates: 5 UTC dates
Estimated median S/N: -12 dB
Estimated 10th-90th percentile: -20 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 78, moderate (-15 to -9 dB) 112, strong (≥ -8 dB) 88.

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 UB3AVN in decoded directed-looking exchanges:

HA7TM · Hungary ×2 CU3HN · Azores DH2RL · Fed. Rep. of Germany DL1ARS · Fed. Rep. of Germany DL1R · Fed. Rep. of Germany DL7ARV · Fed. Rep. of Germany EA3IDY · Spain F1ODM · France F1PBZ · France IQ4JO · Italy IV3IUM · Italy ON1JP · Belgium

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 UB3AVN

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 · 88 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-08-23 19:08 UTC

Other locator fields attributed to this token: KO67 (81) and KO86 (15).

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	UB3AVN S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-20 05:52	40m	- / -6	RW6ATD	-4 / -	3	Partial capture
09-20 05:23	40m	- / -17	LZ936BA	+4 / -	2	Partial capture
09-04 20:51	40m	-5 / -	DC9GT	- / -8	3	Partial capture
09-04 20:50	40m	- / -	DL3IAK	-2 / -	4	Partial capture
09-04 20:49	40m	-2 / -14	CT2HEX	-12 / -	3	✓ Closing observed
09-04 20:45	40m	-4 / -	DL3IAK	-10 / -10	4	Partial capture
09-04 20:43	40m	-4 / -	F5SJC	-1 / -6	3	✓ Closing observed
09-04 20:43	40m	+2 / -	CT2HEX	-13 / -4	4	Partial capture
09-04 20:37	40m	0 / -14	IZ0ZIP	+6 / -7	4	✓ Full exchange observed
09-04 20:29	40m	-2 / -	JA0RUG	-8 / -8	3	✓ Closing observed
09-04 20:27	40m	-8 / -	R4FS	- / -	2	Partial capture
09-04 20:25	40m	-6 / -9	G8RZ	+1 / -7	4	✓ Full exchange observed
09-04 20:16	40m	-4 / -4	DK4RH	+2 / -11	9	✓ Full exchange observed
09-04 20:06	40m	-12 / -8	UD6AWH	-10 / -11	3	Partial capture
09-04 20:05	40m	-11 / -8	G4DBW	-4 / -11	5	✓ Full exchange observed
09-04 19:58	40m	- / -4	SP5ALV	-8 / -	3	✓ Closing fragment
09-04 19:13	40m	- / -	IV3JRY	-8 / -	6	Partial capture
09-04 19:13	40m	- / -13	DL7VGU	+5 / -	3	✓ Closing fragment
09-04 17:33	40m	- / -10	HA7TM	+2 / -	3	✓ Closing fragment
09-04 17:18	40m	-9 / -	RA3V	- / -6	2	✓ Closing fragment
09-04 17:16	40m	- / -	EW4DDC	-16 / -	2	✓ Closing fragment
09-04 17:08	40m	-6 / -4	HA7TM	+5 / -5	6	✓ Full exchange observed
09-04 17:04	40m	- / -13	SQ4INW	+2 / -	4	✓ Closing fragment
09-04 16:59	40m	- / -21	RA9UES	-9 / -	3	Partial capture
09-04 16:55	40m	- / -15	RC6OZ	-1 / -	3	✓ Closing fragment
09-04 16:53	40m	- / -16	IK0BAL	+4 / -	4	✓ Closing fragment
09-04 16:51	40m	- / -12	OE6TNO	+6 / -	3	✓ Closing fragment
09-04 16:49	40m	- / -6	R2AVW	0 / -	2	✓ Closing fragment
09-04 16:48	40m	- / -9	R4UAS	-12 / -	2	✓ Closing fragment
09-04 16:28	40m	- / -13	F1IQH	-10 / -	4	Partial capture
09-04 16:12	40m	-7 / -12	RA4L	-10 / -9	5	✓ Full exchange observed
09-04 16:08	40m	- / -12	DL6ZOG	-8 / -	3	Partial capture
09-04 16:08	40m	- / -9	UA1RC	-7 / -	2	✓ Closing fragment
09-04 15:57	40m	-16 / -20	UB3PAQ	-14 / -13	4	✓ Full exchange observed
09-04 15:52	40m	- / -19	F4FSY	-11 / -	3	Partial capture
09-04 15:45	40m	-16 / -	RU3X	- / -	2	Partial capture
09-04 15:43	40m	- / -12	UB8CPH	-2 / -	2	✓ Closing fragment
09-04 15:33	40m	- / -11	SP9DPM/P	-4 / -	4	✓ Closing fragment
09-04 15:30	40m	-13 / -20	R4PEQ	-6 / -5	3	✓ Full exchange observed
09-04 15:27	40m	-12 / -	RA8QC	- / -	2	Partial capture
08-23 18:53	40m	-15 / -	PD1WN	-5 / -14	5	Partial capture
08-23 18:53	40m	-17 / -19	SV1EKI	-4 / -5	9	✓ Full exchange observed
08-23 18:47	40m	- / +3	UB3ANV	-5 / -	3	✓ Closing fragment
08-23 18:46	40m	-17 / -11	UA3VVA	-12 / -9	2	Partial capture
08-23 18:42	40m	-12 / -2	RU3QR	-1 / -7	3	✓ Full exchange observed
08-23 18:40	40m	-14 / -	RA5AK	- / -10	2	✓ Closing fragment
08-23 18:39	40m	-15 / -9	R4HHN	-5 / -5	5	✓ Full exchange observed
08-23 18:37	40m	-13 / -	RX3DRC	- / -	3	Partial capture
08-23 15:10	20m	- / -	TA3NK	-12 / -	2	Partial capture
08-23 15:06	20m	- / -	TA3NK	-10 / -	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
205100  +1  475  CQ UB3AVN KO67
205115  -1  338  UB3AVN DL3IAK JN49
205130  -8  475  DC9GT UB3AVN -08
205145  +4  338  UB3AVN DL3IAK JN49
205200  -1  475  DC9GT UB3AVN -08
205215  -7  337  UB3AVN DL3IAK JN49
205230  -7  475  DC9GT UB3AVN -08
205300  -2  475  CQ UB3AVN KO67
050730  -8  840  UB3AVN UA3ZMQ KO90
052345  +6 1914  UB3AVN LZ936BA -17 (x2)
054315  -2 2438  UB3AVN YL3CW KO36
055215  -3 2655  UB3AVN RW6ATD -06 (x3)

20m

UTC    dB Audio  Message
143445 +17  464  UB3AVN F1ODM RR73
143615  +2  462  UB3AVN R0SAU -10
144215 -15 1933  UB3AVN R7RAG RR73
144615  -2  585  UB3AVN RA0SCZ R-06 (x2)
145300  -6 2628  UB3AVN R7KM -13 (x2)
150600 -11 1083  UB3AVN TA3NK KM39 (x5)
151630 -16 1083  XU7O UB3AVN KO85
151730 -15 1083  CQ UB3AVN KO85 (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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