UA3AIF — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO85

Receiver-side FT8 activity involving UA3AIF, decoded by SO8OO in southeastern Poland. 136 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 10 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-19.

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 136 FT8 messages attributed to UA3AIF as the transmitting token by decoded message structure across 10 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (54%), followed by 10 m (34%) and 20 m (12%). Most decodes (65%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -7 dB.

Overview

136

Messages attributed

UTC dates decoded

Active 15-min windows

-7 dB

Estimated median S/N

Bands

40m · 74 20m · 16 10m · 46

First attributed message: 2026-06-06
Last attributed message: 2026-09-19 14:44 UTC

Observed FT8 message patterns

Attributed sample: 136 messages
Active dates: 10 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -17 to +19 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 86.

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 UA3AIF in decoded directed-looking exchanges:

R9LAR · Asiatic Russia RI0SP · European Russia SV5BYP · Dodecanese BD7OH · China BG4OOO · China R3MAR · European Russia R3RRC/P · European Russia R4HGK · European Russia R4PEQ · European Russia R4PFY · European Russia RA5AK · European Russia S21VHF · Bangladesh

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 UA3AIF

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: KO85 · 49 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-09-19 14:42 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	UA3AIF S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-19 14:42	40m	0 / -	R3RRC/P	- / -4	3	✓ Closing fragment
08-15 17:03	40m	-12 / -	S21VHF	- / -10	4	✓ Closing fragment
08-15 16:58	40m	-21 / -	G0VRX/P	- / -16	2	Partial capture
07-21 18:58	40m	-14 / -	UB0SMX/P	- / -14	2	✓ Closing fragment
07-17 18:47	40m	-13 / -	R9PS/0	- / -	5	Partial capture
07-17 18:42	40m	-7 / -	UB8QBY	- / -12	4	Partial capture
07-02 20:37	40m	- / -	R9FE	-11 / -	2	Partial capture
07-02 18:46	40m	-7 / -	UB3YGA	- / -	2	✓ Closing fragment
07-02 18:45	40m	-6 / -	R4PEQ	- / +3	3	✓ Closing fragment
07-02 18:40	40m	-7 / -	R4HGK	- / -13	3	✓ Closing fragment
07-02 18:26	40m	- / -	F5RRS	-21 / -	3	Partial capture
07-02 18:22	40m	+1 / -	R4SCQ	- / -	2	Partial capture
07-02 18:18	40m	0 / -	UA8L/M	- / -14	4	Partial capture
07-02 18:13	40m	-6 / -	R1QF	- / -9	2	Partial capture
06-27 19:37	20m	-6 / -	RI0SP	-12 / -10	3	✓ Closing observed
06-27 19:30	20m	- / -26	EA3BIC	-15 / -	4	Partial capture
06-27 09:37	20m	-6 / -	<...>	- / -	2	Partial capture
06-27 09:21	20m	-6 / -2	SV5BYP	-18 / -	4	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
165045 -16 1742  BG4OOO UA3AIF 73
165400 -19 1741  S21VHF UA3AIF -12
165430 -20 1742  G0VRX/P UA3AIF -12
165700 -19 1742  R4PFY UA3AIF 73
165830 -20 1741  G0VRX/P UA3AIF -16 (x3)
170330 -22 1742  S21VHF UA3AIF -10 (x4)
144215  -1 2475  R3RRC/P UA3AIF KO85 (x3)
144415  +3 2475  UA0LQE UA3AIF -16

20m

UTC    dB Audio  Message
092115 -18 2056  UA3AIF SV5BYP KM46 (x2)
092200  -6 2555  SV5BYP UA3AIF RR73
092215 -18 2056  UA3AIF SV5BYP 73
092345 -20 1991  UA3AIF DL9KM JN68
093700  -7 2555  <...> UA3AIF KO85 (x2)
101700  -9 1879  UA3AIF SP1EG JO73
193030 -15 1579  UA3AIF EA3BIC JN11 (x4)
193745  -7 2884  RI0SP UA3AIF R-10
193800 -12 2666  UA3AIF RI0SP RR73
193815  -6 2884  RI0SP UA3AIF 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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