UB1AXF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO39

Receiver-side FT8 activity involving UB1AXF, decoded by SO8OO in southeastern Poland. 187 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-07-08 and 2026-08-25.

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 187 FT8 messages attributed to UB1AXF as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (81%), followed by 10 m (10%) and 20 m (9%). Most decodes (87%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.

Overview

187

Messages attributed

UTC dates decoded

Active 15-min windows

-13 dB

Estimated median S/N

Bands

80m · 152 40m · 1 20m · 16 10m · 18

First attributed message: 2026-07-08
Last attributed message: 2026-08-25 13:20 UTC

Observed FT8 message patterns

Attributed sample: 187 messages
Active dates: 6 UTC dates
Estimated median S/N: -13 dB
Estimated 10th-90th percentile: -21 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 54, moderate (-15 to -9 dB) 97, strong (≥ -8 dB) 36.

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 UB1AXF in decoded directed-looking exchanges:

I1RJP · Italy ×3 R2EC · European Russia ×2 9A4ZM · Croatia ×2 DN9SGE · Fed. Rep. of Germany R6OD · European Russia RK6MC · European Russia RW3VA · European Russia UA6YW · European Russia DL1DXX · Fed. Rep. of Germany DL6KA · Fed. Rep. of Germany EA1IOK · Spain EA3FH · Spain

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 UB1AXF

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: KO39 · 59 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,114 km (approx.)
Last such locator decoded: 2026-08-13 19:37 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	UB1AXF S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-25 13:31	40m	- / -11	OZ9FF	-12 / -	2	✓ Closing fragment
08-25 13:15	20m	- / -	R3KCW	+1 / -	2	✓ Closing fragment
08-25 13:11	20m	- / +1	UA4LDP	-9 / -	2	✓ Closing fragment
08-25 13:10	20m	-24 / -	R4WQ	- / +1	2	✓ Closing fragment
08-25 13:07	20m	-23 / -	RD4WM	-14 / -	3	✓ Closing observed
08-25 13:05	20m	-19 / -5	G8IXM	-15 / -15	7	✓ Full exchange observed
08-25 12:56	20m	- / -	PA3AGN	-11 / -	2	Partial capture
08-25 12:56	20m	- / +2	PD9OH	-4 / -	2	✓ Closing fragment
08-25 12:11	20m	- / -2	RZ6DZ	+3 / -	3	✓ Closing fragment
08-25 12:11	20m	- / -2	RU6K	-14 / -	2	✓ Closing fragment
08-25 12:08	20m	- / -1	DL6KA	+4 / -	2	✓ Closing fragment
08-25 12:04	20m	- / -16	PE1NPS	-14 / -	4	✓ Closing fragment
08-25 12:02	20m	- / -8	RV6ANA	-1 / -	5	Partial capture
08-25 12:01	20m	- / -18	EA1N	0 / -	2	Partial capture
08-25 12:00	20m	- / -	G8IXM	-13 / -	3	Partial capture
08-25 11:59	20m	- / -11	IQ4JO	0 / -	3	✓ Closing fragment
08-25 11:59	20m	- / -	UA7T	-1 / -	3	Partial capture
08-25 11:46	20m	- / -	F5IXN	+2 / -	4	Partial capture
08-25 11:44	20m	- / -23	RU6AR	+10 / -	5	✓ Closing fragment
08-25 11:36	20m	- / -19	RL1B	-16 / -	3	✓ Closing fragment
08-25 11:35	20m	- / +1	DL1DXX	-10 / -	2	✓ Closing fragment
08-25 11:33	20m	- / -17	PA1PXL	-6 / -	4	✓ Closing fragment
08-25 11:31	20m	- / -9	RX3AEX	+1 / -	4	✓ Closing fragment
08-25 11:28	20m	- / +3	RM6OM	+12 / -	4	✓ Closing fragment
08-25 11:25	20m	- / +2	R8CKD	-16 / -	4	✓ Closing fragment
08-25 11:25	20m	- / -	RU4B	+6 / -	5	Partial capture
08-25 11:24	20m	- / -	PE1NPS	-22 / -	2	Partial capture
08-25 11:24	20m	- / -26	RA6FSV	-6 / -	6	✓ Closing fragment
08-14 16:33	20m	- / -19	SV9TLU	-4 / -	4	✓ Closing fragment
08-14 16:24	20m	- / -13	UN7PNF	-17 / -	3	✓ Closing fragment
08-14 16:08	20m	- / -	EA5RR	+4 / -	2	Partial capture
08-14 15:48	20m	- / -10	EI5HV	-8 / -	2	✓ Closing fragment
08-13 19:43	20m	- / +8	F4ACR	-11 / -	3	✓ Closing fragment
08-13 19:37	80m	-6 / -12	DO6AZ	+2 / -21	5	✓ Full exchange observed
08-13 19:34	80m	-5 / -9	OM6AOM	+4 / -7	5	✓ Full exchange observed
08-13 19:32	80m	- / -16	RZ3EC	0 / -	3	✓ Closing fragment
08-13 19:29	80m	- / -2	RA3M	-2 / -	2	✓ Closing fragment
08-13 19:28	80m	- / -4	R2EA	-3 / -	7	✓ Closing fragment
08-13 19:27	80m	-12 / -	<...>	- / -	3	Partial capture
08-13 19:24	80m	- / -10	RL3FA	-7 / -	4	✓ Closing fragment
08-13 19:22	80m	-8 / -	UA3LKM	- / -16	2	✓ Closing fragment
08-13 19:22	80m	- / -	DK7UY	-7 / -	2	Partial capture
08-13 19:22	80m	-10 / -	ON6CQ	-24 / -11	6	✓ Closing observed
08-13 19:19	80m	- / -14	F5MYK	-15 / -	3	✓ Closing fragment
08-13 19:17	80m	-7 / -	UA1RC	- / -26	3	✓ Closing fragment
08-13 19:12	80m	-5 / -6	SP5KG	+14 / -3	3	✓ Full exchange observed
08-13 19:09	80m	-10 / -14	DK7ZT	+2 / -6	4	✓ Full exchange observed
08-13 19:08	80m	- / -11	RA3QH	-8 / -	2	✓ Closing fragment
08-13 19:05	80m	-8 / -13	RZ6CO	+2 / -11	4	✓ Full exchange observed
08-13 19:04	80m	-7 / -	IQ4JO	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
153130 -12  930  UB1AXF DL1RTS -16 (x3)
155130 -18 1876  UB1AXF R7DX KN84 (x3)
155430 -11 1982  UB1AXF RG5A KN93 (x4)
160930 -11 2497  UB1AXF DM5KM JO43 (x2)
163730 -18 1158  UB1AXF R3XBS KO74
133130 -14 2314  UB1AXF OZ9FF -11 (x2)

20m

UTC    dB Audio  Message
130630 -19 1777  G8IXM UB1AXF -15
130645 -16  940  UB1AXF G8IXM R-05
130700 -19 1777  G8IXM UB1AXF RR73
130715 -17  809  UB1AXF RD4WM +14
130715 -19  940  UB1AXF G8IXM 73
130745 -10  810  UB1AXF RD4WM RR73
130800 -23 1777  RD4WM UB1AXF 73
131000 -24 1886  R4WQ UB1AXF +01 (x2)
131145  -7 2012  UB1AXF UA4LDP +01 (x2)
131515  -7 2229  UB1AXF PD8XXX JO21
131545  +7 1309  UB1AXF R3KCW R+13 (x2)
132000 -18 2229  PD4RJ UB1AXF R-14

80m

UTC    dB Audio  Message
193100  -3 1729  UB1AXF R2EA R-13 (x2)
193200  +0 1729  UB1AXF RZ3EC KO82 (x3)
193430  -8 1975  OM6AOM UB1AXF KO39
193445  +5 1728  UB1AXF OM6AOM -09
193500  -3 1975  OM6AOM UB1AXF R-07
193515  +4 1729  UB1AXF OM6AOM RR73
193530  -5 1975  OM6AOM UB1AXF 73
193700  -5 1975  DO6AZ UB1AXF KO39
193715  +6 1502  UB1AXF DO6AZ -12
193730  -5 1975  DO6AZ UB1AXF R-21
193745  -1 1502  UB1AXF DO6AZ RR73
193800  -7 1975  DO6AZ UB1AXF 73

10m

UTC    dB Audio  Message
150600 -21 2035  UB1AXF UA6YW RR73
150630  -7  993  UB1AXF R2EC KO82 (x6)
152445 -21 1963  TN8GD UB1AXF KO39
152745 -23 1963  SV1SMX UB1AXF KO39 (x2)
152915 -24 1962  SV2AEL UB1AXF KO39
152930  -6 2137  UB1AXF SV2AEL +06
152945 -18 1962  SV2AEL UB1AXF R-07
153045 -24 1962  SV1SMX UB1AXF R-13
154330  -9 2268  UB1AXF RA3AHN -12

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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