UA3QC — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: KO91

Receiver-side FT8 activity involving UA3QC, decoded by SO8OO in southeastern Poland. 85 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 21 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-17.

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 85 FT8 messages attributed to UA3QC as the transmitting token by decoded message structure across 21 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (51%), followed by 40 m (34%) and 10 m (15%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-14 dB

Estimated median S/N

Bands

40m · 29 20m · 43 10m · 13

First attributed message: 2026-06-08
Last attributed message: 2026-09-17 03:40 UTC

Observed FT8 message patterns

Attributed sample: 85 messages
Active dates: 21 UTC dates
Estimated median S/N: -14 dB
Estimated 10th-90th percentile: -23 to -6 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 35, moderate (-15 to -9 dB) 34, strong (≥ -8 dB) 16.

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 UA3QC in decoded directed-looking exchanges:

5B4AMX · Cyprus HA2KF · Hungary SV2CLJ · Greece EA1IOK · Spain HF7X · Poland RN6MA · European Russia YB5WIR · Indonesia

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 UA3QC

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: KO91 · 63 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,221 km (approx.)
Last such locator decoded: 2026-09-17 03:40 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	UA3QC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-17 03:37	40m	-10 / -	NQ3A	- / -	7	Partial capture
08-21 04:25	20m	-21 / -18	HC5F	-3 / -	6	Partial capture
08-11 05:37	10m	- / -11	SV2CLJ	-4 / -	3	✓ Closing fragment
08-06 10:41	10m	- / -14	5B4AMX	-20 / -	2	✓ Closing fragment
08-05 03:29	20m	-16 / -	V31DL	- / -	8	Partial capture
08-01 16:16	10m	-23 / -	HA2KF	- / -	2	✓ Closing fragment
07-31 01:51	40m	-18 / -	PW8BR	- / -26	6	Partial capture
07-24 15:39	20m	-8 / -	E25KAE	- / -	2	Partial capture
07-19 06:18	20m	- / -	F4BYA	-6 / -	2	Partial capture
07-19 06:17	20m	- / -6	F1ODM	-6 / -	3	Partial capture
07-18 02:12	20m	- / +7	RN6MA	-16 / -	2	✓ Closing fragment
07-13 02:46	20m	-23 / -	KZ4ZZ	- / -	4	Partial capture
07-06 01:48	20m	-12 / -	HF7X	- / -9	2	✓ Closing fragment
06-30 03:07	20m	- / -14	K7XB	-10 / -	2	Partial capture
06-27 16:02	20m	- / -1	YB5WIR	-10 / -	2	✓ Closing fragment
06-25 18:12	20m	-18 / -	DS5USH	- / -	5	Partial capture
06-25 18:01	20m	-12 / -	<...>	- / -7	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
015100 -19 1534  PW8BR UA3QC KO91 (x6)
033745 -14 1536  NQ3A UA3QC KO91 (x7)

20m

UTC    dB Audio  Message
033100 -18 1568  V31DL UA3QC KO91 (x7)
032630  -5  927  UA3QC RW9WJ LO84
042200 -23 1569  HC5F UA3QC KO91 (x4)
042715  -6  653  UA3QC HC5F -18 (x3)

10m

UTC    dB Audio  Message
190315 -24 1565  PV8AJ UA3QC KO91
064600 -10 2382  CQ UA3QC KO91                         a1
064630 -10 2382  HA7TM UA3QC +05
161645 -23 1572  HA2KF UA3QC KO91 (x2)
104100 -23 1902  UA3QC 5B4AMX -14 (x2)
061715 -24 1578  RA3QPY UA3QC KO91
053730  -3  682  UA3QC SV2CLJ KN10 (x4)

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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