UA3XFO — 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: KO84

Receiver-side FT8 activity involving UA3XFO, decoded by SO8OO in southeastern Poland. 38 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-27 and 2026-10-13.

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 38 FT8 messages attributed to UA3XFO as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 20 m (13%). Most decodes (58%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (63%); the estimated median was -19 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-19 dB

Estimated median S/N

Bands

40m · 33 20m · 5

First attributed message: 2026-06-27
Last attributed message: 2026-10-13 19:05 UTC

Observed FT8 message patterns

Attributed sample: 38 messages
Active dates: 6 UTC dates
Estimated median S/N: -19 dB
Estimated 10th-90th percentile: -22 to -4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 24, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 8.

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 UA3XFO in decoded directed-looking exchanges:

7X2RF · Algeria DL7DL · Fed. Rep. of Germany EC3A · Spain EW8AAC · Belarus MW0USK · Wales OM3PR · Slovak Republic OZ7CL · Denmark PD7JLP · Netherlands PH7GD · Netherlands R1CBW · European Russia R6ADH · European Russia RU3XX · European Russia

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 UA3XFO

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: KO84 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,150 km (approx.)
Last such locator decoded: 2026-10-13 19:04 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	UA3XFO S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-03 21:55	40m	- / -13	EC3A	-14 / -	3	✓ Closing fragment
10-31 19:30	40m	- / -13	7X2RF	-2 / -	2	✓ Closing fragment
10-31 19:03	40m	- / -	F6BHK	0 / -	5	Partial capture
10-26 17:57	40m	- / -10	PD7JLP	-4 / -	2	✓ Closing fragment
10-13 18:59	40m	-16 / -	PH7GD	-11 / -13	5	✓ Closing observed
10-13 18:58	40m	-17 / -	UB0SMX	- / -	2	Partial capture
10-10 08:28	40m	- / -11	EW8AAC	-16 / -	2	✓ Closing fragment
09-20 17:47	40m	-9 / -23	MW0USK	0 / -2	5	✓ Full exchange observed
09-20 17:41	40m	-2 / -	R9JE	- / -	3	Partial capture
08-30 13:52	40m	-20 / -10	RZ6AKF	-7 / +2	6	✓ Full exchange observed
08-30 13:48	40m	- / -18	RV3YN	-16 / -	5	✓ Closing fragment
08-30 13:38	40m	-20 / +8	RU3XX	-12 / +2	4	✓ Full exchange observed
08-30 13:36	40m	-22 / -22	DL7DL	+4 / -22	6	✓ Full exchange observed
08-30 13:20	40m	- / -	DL7DL	-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
190500 -19 1943  SQ2BXI UA3XFO -05
185000  -7  770  UA3XFO RA6ABO KN96
175745  -4 1602  UA3XFO PD7JLP -10 (x2)
190300  +3 2744  UA3XFO F6BHK JN24 (x5)
193045  -2 2133  UA3XFO 7X2RF -13 (x2)
215515  +1 2413  UA3XFO F6BHK JN24
215515 -14 1653  UA3XFO EC3A -13 (x3)

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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