UB3ANV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO88

Receiver-side FT8 activity involving UB3ANV, decoded by SO8OO in southeastern Poland. 1,693 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 54 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-09-18.

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 1,693 FT8 messages attributed to UB3ANV as the transmitting token by decoded message structure across 54 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (47%), followed by 80 m (45%) and 20 m (7%). Several six-hour UTC windows tied for the largest share (99%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.

Overview

1,693

Messages attributed

UTC dates decoded

212

Active 15-min windows

-10 dB

Estimated median S/N

Bands

80m · 768 40m · 803 20m · 122

First attributed message: 2026-06-15
Last attributed message: 2026-09-18 21:29 UTC

Observed FT8 message patterns

Attributed sample: 1,693 messages
Active dates: 54 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -17 to -3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 256, moderate (-15 to -9 dB) 736, strong (≥ -8 dB) 701.

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 UB3ANV in decoded directed-looking exchanges:

IK4LZH · Italy ×4 DF8RU · Fed. Rep. of Germany ×3 UI6O · European Russia ×3 M8FQT · England ×3 DL1EDR · Fed. Rep. of Germany ×2 PA0ION · Netherlands ×2 F1PBZ · France ×2 R2DRY · European Russia ×2 EU1EU · Belarus ×2 R2APC · European Russia ×2 R3BBM · European Russia ×2 RC9WC · Asiatic Russia ×2

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 UB3ANV

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: KO88 · 1,226 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,367 km (approx.)
Last such locator decoded: 2026-09-18 21:25 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	UB3ANV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-18 21:28	80m	-24 / +2	R5VDJ	-16 / -	3	✓ Full exchange observed
09-18 19:31	40m	-18 / -21	R4HNT	-14 / -2	4	✓ Full exchange observed
09-18 19:16	40m	- / -22	UA6EU	-15 / -	2	✓ Closing fragment
09-18 19:09	40m	0 / -12	OK2BXD	+3 / -	4	✓ Closing observed
09-17 21:57	80m	-19 / -25	DK2MAX	+9 / -9	7	✓ Full exchange observed
09-17 21:50	80m	-14 / -	UI7N	- / -	4	Partial capture
09-17 21:35	80m	-14 / -7	RA3PGR	-11 / +9	5	✓ Full exchange observed
09-17 21:34	80m	-19 / -	BI8FRF	- / -	2	Partial capture
09-17 21:11	80m	-10 / -	ON4MAP	- / -19	2	Partial capture
09-17 19:10	40m	-6 / -9	DA0O	0 / -4	11	✓ Full exchange observed
09-16 21:27	80m	-10 / -	RK0SC	- / -	2	Partial capture
09-16 21:17	80m	-16 / -12	DL6ZNG	-1 / -	6	✓ Closing observed
09-16 21:05	80m	-7 / -8	RA3WPF	-3 / +10	10	✓ Full exchange observed
09-16 21:05	80m	-2 / -	EU1EU	- / -6	2	✓ Closing fragment
09-16 21:02	80m	-3 / -	RA3WPF	-2 / +5	4	Partial capture
09-15 21:14	80m	-11 / -16	DA6BR	-10 / -12	4	✓ Full exchange observed
09-15 19:52	40m	-15 / -17	R3PBA	-1 / +1	3	✓ Full exchange observed
09-15 19:26	40m	- / -11	GJ0KYZ	-2 / -	2	Partial capture
09-15 19:17	40m	- / -12	R7KEO	+5 / -	2	Partial capture
09-14 21:31	80m	-7 / -8	UB3YGA	+14 / -	5	✓ Full exchange observed
09-14 21:30	80m	- / -21	EA1CP	+2 / -	2	Partial capture
09-14 21:22	80m	0 / -20	HA1DCQ	+8 / -7	2	Partial capture
09-14 21:22	80m	-5 / -	R4HLO	- / -7	4	Partial capture
09-14 21:14	80m	-12 / -8	R4FDK	-10 / +10	4	✓ Full exchange observed
09-14 19:11	40m	- / -10	SV1ENG	-6 / -	4	✓ Closing fragment
09-14 19:07	40m	-4 / -	RA9SBN	-1 / -	2	✓ Closing observed
09-14 19:01	40m	-8 / -	R8AIJ	- / -17	4	Partial capture
09-13 21:28	80m	-6 / -5	RW3YS	+7 / +10	5	✓ Full exchange observed
09-13 21:25	80m	-9 / -	RA0SCA	- / -	3	Partial capture
09-13 21:24	80m	-8 / -14	F1PBZ	-2 / -4	5	✓ Full exchange observed
09-13 21:17	80m	-10 / -	UB3WDA	- / -	2	✓ Closing fragment
09-12 21:07	80m	-12 / -	G6LEE	- / -6	2	✓ Closing fragment
09-12 20:53	40m	- / -	ON1DGN	-12 / -	3	✓ Closing fragment
09-12 20:50	40m	-20 / -	TF3VS	- / -10	2	Partial capture
09-11 21:22	80m	-5 / -	MI0OBC	- / -6	2	✓ Closing fragment
09-11 21:15	80m	-15 / -	ON4MAP	- / -4	2	✓ Closing fragment
09-11 21:09	80m	-13 / -9	UB3DRL	-2 / -	6	✓ Closing observed
09-11 21:05	80m	- / -7	UB3ADO/P	-10 / -	2	✓ Closing fragment
09-11 21:00	80m	- / -	DL6EL	+4 / -	3	Partial capture
09-11 20:58	80m	- / -	RK3YWA	-6 / -	2	✓ Closing fragment
09-11 20:51	80m	-16 / -11	DG2KW	+4 / -2	4	✓ Full exchange observed
09-11 20:46	40m	-20 / -	UB4FJC	- / -	2	Partial capture
09-11 20:27	40m	- / -8	EI2KZB	-19 / -	3	✓ Closing fragment
09-11 20:06	40m	- / +6	F4NFM	-13 / -	3	✓ Closing fragment
09-11 20:00	40m	-11 / +1	DF6KA	-3 / 0	7	✓ Full exchange observed
09-11 19:58	40m	-10 / -18	GM5TGA	-10 / -15	3	✓ Full exchange observed
09-11 19:22	40m	- / -18	TA2E	-14 / -	2	Partial capture
09-10 21:22	40m	- / -6	DF8RU	+1 / -	3	✓ Closing fragment
09-10 21:21	40m	- / -20	ON1JP	-10 / -	2	Partial capture
09-10 21:13	80m	-8 / -22	DK1RWR	-2 / -10	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
215700 -13  514  CQ UB3ANV KO88
215715  +9 2926  UB3ANV DK2MAX JN58
215730 -20  515  DK2MAX UB3ANV -09
215745 +13 2926  UB3ANV DK2MAX R-25
215800 -20  515  DK2MAX UB3ANV -09
215815 +11 2926  UB3ANV DK2MAX R-25
215830 -16  515  DK2MAX UB3ANV RR73
215845  +4 2926  UB3ANV DK2MAX 73
211915 -14  435  CQ UB3ANV KO88 (x4)
212845 -16 2097  UB3ANV R5VDJ +02
212900 -24  436  R5VDJ UB3ANV R+14
212915 -16 2097  UB3ANV R5VDJ RR73

40m

UTC    dB Audio  Message
191115  -8  442  CQ UB3ANV KO88 (x4)
191530 -11  442  UB3ANV HB9EXN JN37
191630 -19 1031  UB3ANV UA6EU -22
191630 -12 2496  UB3ANV R4FD -04
191700 -11 1030  UB3ANV UA6EU RR73
192315 -17 2189  CQ UB3ANV KO88 (x2)
192645 -18 2189  OH7JEV UB3ANV RR73
193100 -14 1039  UB3ANV R4HNT -21
193115 -16 2188  R4HNT UB3ANV R-02
193130 -13 1039  UB3ANV R4HNT RR73
193145 -19 2189  R4HNT UB3ANV 73

160m

UTC    dB Audio  Message
211445  +0  732  UB3ANV GO/160 (x2)
181915  -1 2446  UB3ANV PA3FR JO33 (x3)

20m

UTC    dB Audio  Message
152800 -12  477  CQ UB3ANV KO88 (x4)
152145  -4 2784  UB3ANV ON8MA JO10 (x3)
141815 -10 2584  UB3ANV DL1EDR JO41 (x2)
155115  -8  462  UB3ANV IK4LZH JN54 (x2)
151745  -9  580  UB3ANV EA3GXK IM98 (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.

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