UA3LEO — 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: KO64

Receiver-side FT8 activity involving UA3LEO, decoded by SO8OO in southeastern Poland. 272 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 16 UTC dates in the available aggregate history. Observed between 2026-06-26 and 2026-10-23.

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 272 FT8 messages attributed to UA3LEO as the transmitting token by decoded message structure across 16 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (38%), followed by 40 m (33%) and 20 m (14%). Most decodes (71%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (64%); the estimated median was -6 dB.

Overview

272

Messages attributed

UTC dates decoded

Active 15-min windows

-6 dB

Estimated median S/N

Bands

80m · 104 40m · 91 20m · 39 10m · 38

First attributed message: 2026-06-26
Last attributed message: 2026-10-23 04:58 UTC

Observed FT8 message patterns

Attributed sample: 272 messages
Active dates: 16 UTC dates
Estimated median S/N: -6 dB
Estimated 10th-90th percentile: -15 to +6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 27, moderate (-15 to -9 dB) 71, strong (≥ -8 dB) 174.

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 UA3LEO in decoded directed-looking exchanges:

R2EA/P · European Russia ×2 F5MJN · France RA6FSV · European Russia RA9YTI · Asiatic Russia RD0L · Asiatic Russia UI6O · European Russia HA7TM · Hungary IQ4JO · Italy R3PLN · European Russia R6FX · European Russia RA3ZOM · European Russia R3ICU · 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 UA3LEO

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: KO64 · 97 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 915 km (approx.)
Last such locator decoded: 2026-10-23 04:58 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	UA3LEO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-23 04:57	40m	-16 / -	R7CA/6	- / -	4	Partial capture
10-23 04:51	40m	-9 / -	UN9LCW/QRP	- / -	4	Partial capture
10-20 17:22	40m	- / -11	IQ4JO	+2 / -	3	✓ Closing fragment
10-20 17:19	40m	- / -8	R6FX	-5 / -	3	✓ Closing fragment
09-29 05:17	80m	- / -	UA3YGP	-9 / -	2	Partial capture
09-28 18:34	80m	-19 / -14	R6OU	-10 / -	3	Partial capture
09-27 20:04	80m	- / -10	RA3WY	+3 / -	3	✓ Closing fragment
09-27 20:03	80m	- / -7	RJ3T	-4 / -	2	✓ Closing fragment
09-27 20:01	80m	- / +3	R2EA/P	+4 / -	2	✓ Closing fragment
09-23 04:23	40m	-15 / -3	R2EA/P	+10 / -	4	✓ Full exchange observed
09-22 13:40	40m	- / -15	HA7TM	+13 / -	4	✓ Closing fragment
09-22 13:38	40m	- / -	RA3ZOM	-7 / -	2	✓ Closing fragment
09-12 02:52	80m	-7 / -	Z62NS	- / -	3	Partial capture
09-12 02:48	80m	- / -14	RA6ZS	-8 / -	2	✓ Closing fragment
08-22 13:09	20m	-2 / -	DM2DXA	- / -	2	Partial capture
08-22 13:05	20m	-5 / -19	F5MJN	-10 / -18	5	✓ Full exchange observed
08-22 13:02	20m	-7 / -	RD0L	- / -12	4	✓ Closing fragment
08-22 13:00	20m	-9 / -	UI6O	- / -	2	✓ Closing fragment
08-21 04:58	20m	-7 / -	R4HNX/8	- / -	3	Partial capture
08-21 04:56	20m	-13 / -	RA6FSV	-14 / -16	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
042400  +9 2489  UA3LEO R2EA/P RR73
171930  -4  238  UA3LEO R6FX LN14 (x3)
172200  +3 1970  UA3LEO IQ4JO JN63 (x3)
045145 -13  570  UN9LCW/QRP UA3LEO KO64 (x4)
045715 -18 1919  R7CA/6 UA3LEO KO64 (x4)

80m

UTC    dB Audio  Message
200100  +2 2449  UA3LEO R2EA/P +03 (x2)
200330  -2  264  UA3LEO RJ3T -07 (x2)
200430  +5 1452  UA3LEO RA3WY KO81 (x3)
200700  +1 1030  UA3LEO R3ICU RR73
183445 -19 2142  R6OU UA3LEO KO64
183500 -14  529  UA3LEO R6OU -14
183530  -6  734  UA3LEO UA3GJM -09
183530  -5  529  UA3LEO R6OU -14
183800 -17  733  UA3LEO UA3GJM RR73
051745  -6  734  UA3LEO UA3YGP KO73 (x2)

20m

UTC    dB Audio  Message
130245 -10  252  RD0L UA3LEO KO64 (x3)
130415  -7  252  CQ UA3LEO KO64 (x2)
130500 -10  744  UA3LEO F5MJN JN09
130515  -3  252  F5MJN UA3LEO -18
130530 -11  743  UA3LEO F5MJN R-19
130545  -7  252  F5MJN UA3LEO RR73
130600  -8  744  UA3LEO F5MJN 73
130615 -14  253  CQ UA3LEO KO64 (x2)
130715 -10  253  UF4S/P UA3LEO KO64
130930  +0  253  DM2DXA UA3LEO KO64 (x2)

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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