UA3FO — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO94

Receiver-side FT8 activity involving UA3FO, decoded by SO8OO in southeastern Poland. 1,984 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 79 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-03.

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 1,984 FT8 messages attributed to UA3FO as the transmitting token by decoded message structure across 79 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (49%), followed by 40 m (19%) and 80 m (16%). Most decodes (65%) fell within the six-hour window 13:00-19:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8.1 dB.

Overview

1,984

Messages attributed

UTC dates decoded

285

Active 15-min windows

-8.1 dB

Estimated median S/N

Bands

160m · 7 80m · 321 40m · 369 20m · 982 10m · 305

First attributed message: 2026-06-06
Last attributed message: 2026-10-03 18:01 UTC

Observed FT8 message patterns

Attributed sample: 1,984 messages
Active dates: 79 UTC dates
Estimated median S/N: -8.1 dB
Estimated 10th-90th percentile: -20.6 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 470, moderate (-15 to -9 dB) 506, strong (≥ -8 dB) 1,008.

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 UA3FO in decoded directed-looking exchanges:

RA1AGA · European Russia ×3 RU3X · European Russia ×2 R4WZ · European Russia ×2 RU3NCW · European Russia ×2 R4HLO · European Russia ×2 RC2Y · European Russia ×2 DG0OFT · Fed. Rep. of Germany DG0OME · Fed. Rep. of Germany DK4FP · Fed. Rep. of Germany DL8WEM · Fed. Rep. of Germany EA3NG · Spain ES0RY · Estonia

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 UA3FO

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: KO94 · 1,328 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,273 km (approx.)
Last such locator decoded: 2026-10-03 18:01 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	UA3FO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-03 18:00	40m	-9 / -	R6OK	- / -	2	Partial capture
10-03 17:55	40m	-4 / -	BI1HJR	- / -	4	Partial capture
10-03 17:50	40m	-1 / -	IT9MRM/ISUB	- / -	2	Partial capture
10-03 17:47	40m	-2 / -	JN4MIV	- / -12	5	✓ Closing fragment
10-02 18:12	80m	-8 / -	RK3YWS/P	- / -	9	Partial capture
10-02 18:09	80m	-10 / -4	RA2FU	-1 / -16	8	✓ Full exchange observed
10-02 18:04	80m	-5 / -	UA9FMT	-21 / -	3	✓ Closing observed
10-02 18:00	80m	-10 / -	YT6AAA	- / -	4	Partial capture
10-02 17:58	80m	-7 / -	OE2GEN	- / -	2	Partial capture
10-02 17:55	80m	-5 / -	RA1AGA	- / -25	7	✓ Closing fragment
10-02 17:47	80m	-8 / +2	RO2E/M	-24 / -13	6	Partial capture
10-02 17:47	80m	-5 / -	IQ9SZ/7	- / -13	2	Partial capture
10-02 17:38	40m	-4 / -	PD1EG/P	- / -11	2	Partial capture
10-02 17:36	40m	-3 / -	RK4PA/9	- / -11	3	Partial capture
10-02 17:34	40m	-3 / -	INACCURATE	- / -	4	Partial capture
10-02 17:32	40m	-2 / -	RU9BM	- / -7	4	✓ Closing fragment
09-28 18:20	80m	-6 / 0	UB9WPD	-16 / -	5	✓ Closing observed
09-28 18:14	80m	-2 / -	OH6RE	+10 / -7	6	✓ Full exchange observed
09-28 18:12	80m	-2 / +5	RU3NCW	+2 / +2	5	✓ Full exchange observed
09-28 18:10	80m	- / -5	UA3ZQN	+1 / -	4	✓ Closing fragment
09-28 18:09	80m	-7 / +3	R2AFI	-2 / -10	4	✓ Full exchange observed
09-28 18:08	80m	- / -	DO1VR	-6 / -	2	Partial capture
09-28 18:07	80m	-2 / -	OZ2LP	- / -18	4	✓ Closing fragment
09-28 18:05	80m	-6 / -2	E70SZ	+7 / -16	5	✓ Full exchange observed
09-28 18:03	80m	-6 / -	RA3LCX	- / -1	3	✓ Closing fragment
09-28 18:01	80m	-7 / -	SV8LMQ	- / -14	3	✓ Closing fragment
09-28 17:55	80m	- / -2	UA3YFL	+3 / -	4	✓ Closing fragment
09-28 17:54	80m	-9 / 0	R4HLO	-23 / -2	3	✓ Full exchange observed
09-28 17:52	80m	-10 / +3	RA3VX	0 / +1	4	✓ Full exchange observed
09-28 17:51	80m	-4 / -	UB2FDL	- / -	2	Partial capture
09-28 17:49	80m	-1 / -	UA3IDQ	-6 / -	5	✓ Closing observed
09-28 17:47	80m	-2 / +8	R3ND	-17 / -8	3	Partial capture
09-28 17:08	80m	-14 / -	R3TD	-6 / -1	5	✓ Full exchange observed
09-28 17:06	80m	-2 / +3	R3MDH	+1 / 0	6	✓ Full exchange observed
09-28 17:04	80m	-5 / -4	RV3YN	-10 / -9	4	✓ Full exchange observed
09-28 17:03	80m	- / -	OE2AGZ	-18 / -	2	Partial capture
09-28 17:03	80m	-1 / -5	YO4GIY	+1 / -6	5	✓ Full exchange observed
09-28 17:01	80m	-10 / -	RA3PS	- / -6	3	✓ Closing fragment
09-28 16:59	80m	-8 / -	YU1FW	-1 / -16	4	✓ Closing observed
09-28 16:57	80m	-6 / +1	EU2ABM	-14 / -1	5	✓ Full exchange observed
09-28 16:51	40m	-6 / 0	RD7O	+2 / -4	5	✓ Full exchange observed
09-28 16:50	40m	-8 / -	SH5RJX	- / -14	6	Partial capture
09-28 16:48	40m	-7 / -	UB6ZDJ	- / -	3	Partial capture
09-28 16:46	40m	-5 / -6	UB6OCP	-16 / -1	5	✓ Full exchange observed
09-28 16:44	40m	-5 / -11	R6SBN	-12 / -7	5	✓ Full exchange observed
09-28 16:42	40m	-11 / -	R9FGF	-22 / -14	4	✓ Closing observed
09-28 16:40	40m	-10 / -11	RU3OH	-14 / -15	2	Partial capture
09-28 16:38	40m	-10 / -	BD8FOD	- / -21	2	✓ Closing fragment
09-28 16:36	40m	-8 / -	UB8CSJ	- / -	2	Partial capture
09-28 16:33	40m	-9 / -	RU4SO	- / -3	4	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
174730  -6 2154  JN4MIV UA3FO KO94 (x5)
175000  +1 2366  IT9MRM/ISUB UA3FO KO94 (x2)
175100  +0 2365  <4O/R2AB> UA3FO KO94
175315  +0 1540  UA3FO 4O/R2AB -12
175500  -3 2117  BI1HJR UA3FO KO94 (x4)
180030 -11 2117  R6OK UA3FO KO94 (x2)

80m

UTC    dB Audio  Message
181045 -12 1564  RA2FU UA3FO KO94
181100  +4  862  UA3FO RA2FU -04
181115 -10 1564  RA2FU UA3FO R-16
181130  -5  862  UA3FO RA2FU RRR
181145 -11 1564  RA2FU UA3FO 73
181200  -2  862  UA3FO RA2FU 73
181215  -9 1564  RK3YWS/P UA3FO KO94 (x9)

160m

UTC    dB Audio  Message
165230 -17 1153  UA3FO RQ3M 73
165330 -15 1977  UA3FO R7DX R-23 (x2)
170215  -8 1858  UA3FO RU3X -13 (x3)
170315 -24 1993  UA3FO RC9WC -22
170745 -16 1790  UA3FO R6ML LN17 (x2)
190145 -24 1679  CQ UA3FO KO94                         a1
191100 -24 1896  UA3FO R2HD RR73
191545 -18 2234  CQ UA3FO KO94 (x3)
191800  -5 2667  UA3FO SV8QG KM39

20m

UTC    dB Audio  Message
172400  +9 1518  BG5GEB UA3FO KO94 (x9)
172830  +8 1519  YC9GBQ UA3FO KO94 (x6)

10m

UTC    dB Audio  Message
084845 -24 1715  CQ UA3FO KO94
085745 -23 1674  VU2KPH UA3FO KO94
091045 -24 1666  OE3GCU UA3FO KO94
091415 -19 1671  CQ UA3FO KO94 (x3)
111915 -24 1946  SP2GCJ UA3FO KO94
140545 -23 2005  EG5DX UA3FO KO94 (x7)
102915 -23 1679  SP9VRY UA3FO 73

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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