UA3FO — 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: KO94

Receiver-side FT8 activity involving UA3FO, decoded by SO8OO in southeastern Poland. 2,031 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 82 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-17.

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 2,031 FT8 messages attributed to UA3FO as the transmitting token by decoded message structure across 82 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (48%), followed by 40 m (19%) and 80 m (18%). Most decodes (66%) 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 dB.

Overview

2,031

Messages attributed

UTC dates decoded

291

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 7 80m · 357 40m · 379 20m · 982 10m · 306

First attributed message: 2026-06-06
Last attributed message: 2026-10-17 07:44 UTC

Observed FT8 message patterns

Attributed sample: 2,031 messages
Active dates: 82 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -20.1 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 471, moderate (-15 to -9 dB) 515, strong (≥ -8 dB) 1,045.

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:

RU3X · European Russia ×2 RA1AGA · European Russia ×2 RU3NCW · European Russia ×2 R4HLO · European Russia ×2 RC2Y · European Russia ×2 RW6HP · European Russia ×2 LZ1VL · Bulgaria RD6OW · European Russia SP8MO · Poland SP9VRY · Poland YO8VD · Romania OH5KNL · Finland

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 · 1,360 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,273 km (approx.)
Last such locator decoded: 2026-10-17 07:44 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
10-08 17:02	80m	-4 / -5	RK4F	-10 / -	3	✓ Closing observed
10-08 16:58	80m	-7 / +3	RA1QD	+2 / -	3	✓ Closing observed
10-08 16:57	80m	-3 / -	RN4HAB	- / -7	3	✓ Closing fragment
10-08 16:54	80m	-10 / -1	RU6K	+12 / -4	3	✓ Full exchange observed
10-08 16:50	80m	- / +3	R6LI	-12 / -	3	✓ Closing fragment
10-08 16:49	80m	-8 / -4	RW6HP	-8 / -13	4	✓ Full exchange observed
10-08 16:48	40m	- / +9	YL2TM	-3 / -	2	Partial capture
10-08 16:42	40m	-4 / -9	LY5J	-2 / -2	4	✓ Full exchange observed
10-08 16:38	40m	+2 / -	RM8CZ	- / -	3	Partial capture
10-08 16:37	40m	+2 / -	JO4IPQ	- / -	2	Partial capture
10-07 17:15	80m	0 / -	R8LCA	- / -13	3	✓ Closing fragment
10-07 17:13	80m	-1 / -	R9AL	- / -14	3	✓ Closing fragment
10-07 17:12	80m	-1 / -	RZ0SW	- / -15	3	✓ Closing fragment
10-07 17:07	80m	-4 / -	RK6OQ	- / -	3	Partial capture
10-07 17:04	80m	-7 / -	SV5/TF1OL	- / -15	3	Partial capture
10-07 17:01	80m	-9 / -	UA9XL/M	- / -	4	Partial 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

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
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
074445 -22 1974  JR0QFA UA3FO KO94

80m

UTC    dB Audio  Message
165445 +14  513  UA3FO RU6K RR73
165530  -5 1844  CQ UA3FO KO94 (x2)
165700  -1 1844  RN4HAB UA3FO KO94 (x3)
165830  -7 1844  RA1QD UA3FO KO94
165845  +5 2459  UA3FO RA1QD +03 (x2)
170100  -9 1844  R4WQ UA3FO 73
170130  -8 1863  EW8R UA3FO KO94
170230  -4 1863  RK4F UA3FO KO94
170315  -9 1364  UA3FO RK4F -05 (x2)
170545  +1 1500  UA3FO ES3BH -05

40m

UTC    dB Audio  Message
163730  -2 2451  JO4IPQ UA3FO KO94 (x2)
163830  +2 2026  RM8CZ UA3FO KO94 (x3)
164045 -21 2251  UA3FO R6ADH KN94
164215  -3 2247  UA3FO LY5J -09
164230  -2 2244  LY5J UA3FO R-02
164245  -1 2247  UA3FO LY5J RR73
164300  -6 2243  LY5J UA3FO 73
164430  -2 1760  YL2TM UA3FO KO94
164530  -1 1760  EW8KO UA3FO KO94
164630  -3 1650  EA6AM UA3FO KO94
164845  -5 1066  UA3FO YL2TM +09 (x2)

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)

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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