UI3A — 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: KO85

Receiver-side FT8 activity involving UI3A, decoded by SO8OO in southeastern Poland. 105 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 5 UTC dates in the available aggregate history. Observed between 2026-08-31 and 2026-10-16.

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 105 FT8 messages attributed to UI3A as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (70%), followed by 40 m (26%) and 80 m (4%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (94%); the estimated median was +3 dB.

Overview

105

Messages attributed

UTC dates decoded

Active 15-min windows

+3 dB

Estimated median S/N

Bands

160m · 74 80m · 4 40m · 27

First attributed message: 2026-08-31
Last attributed message: 2026-10-16 20:57 UTC

Observed FT8 message patterns

Attributed sample: 105 messages
Active dates: 5 UTC dates
Estimated median S/N: +3 dB
Estimated 10th-90th percentile: -5 to +14 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 99.

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 UI3A in decoded directed-looking exchanges:

9A4ZM · Croatia ×2 DK7ZT · Fed. Rep. of Germany F5BZB · France IU0NAD · Italy LA9JKA · Norway OD5ZF · Lebanon R5AV · European Russia R5KH · European Russia RI1FJZ · Franz Josef Land RU3T · European Russia RV3SBS · European Russia S58N · Slovenia

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 UI3A

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 · 59 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,193 km (approx.)
Last such locator decoded: 2026-10-16 20:51 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	UI3A S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-16 20:53	160m	+3 / -3	DK7ZT	-9 / -2	4	✓ Full exchange observed
10-16 20:53	160m	0 / -	R5KH	-24 / +2	5	✓ Closing observed
10-16 20:53	160m	-4 / -3	IU0NAD	-13 / -12	5	✓ Full exchange observed
10-16 20:51	160m	-5 / -	UK8AEA	- / -15	3	✓ Closing fragment
10-16 20:49	160m	-1 / -	9A4ZM	-3 / -4	3	✓ Closing observed
10-16 20:48	160m	-4 / -	F5BZB	0 / -9	3	✓ Closing observed
10-16 20:47	160m	+3 / -	SV1SSL	-23 / -4	3	✓ Closing observed
10-16 20:45	160m	+4 / +10	RU3T	-19 / +2	4	✓ Full exchange observed
10-16 20:44	160m	+6 / -5	S58N	-2 / -15	4	✓ Full exchange observed
10-16 20:43	160m	+8 / -	UA4FKT	- / +5	2	✓ Closing fragment
10-16 20:42	160m	+4 / -2	UA3ZUX	-12 / +3	3	✓ Full exchange observed
10-16 20:40	160m	+10 / -	R5AV	- / 0	2	✓ Closing fragment
10-16 20:39	160m	+6 / -	LA9JKA	- / -5	2	✓ Closing fragment
10-16 20:35	160m	-2 / -	NM6V	- / -	2	Partial capture
10-16 20:30	160m	- / -	UA4FKT	-8 / -	2	Partial capture
10-16 20:22	160m	- / -	RX3DTN	-4 / -	2	Partial capture
10-16 20:22	160m	- / -	UA4FKT	-7 / -	4	Partial capture
10-16 20:21	160m	-4 / -	OD5ZF	- / -18	3	✓ Closing fragment
10-16 20:18	160m	- / -	UA3ZUX	-9 / -	2	Partial capture
10-16 20:09	160m	0 / -	OD5ZF	- / -	12	Partial capture
10-16 19:57	160m	- / -	SV2AEL	+1 / -	9	Partial capture
10-16 19:56	160m	+1 / -	OD5ZF	- / -	17	Partial capture
10-04 03:44	40m	+12 / -	YN1ZGN	- / -9	22	Partial capture
10-04 03:18	160m	-1 / -16	OD5XX	-21 / -20	3	Partial capture
10-04 03:10	160m	+3 / -	OD5XX	- / -	3	Partial capture
10-04 02:57	40m	-13 / -7	HK3AB	-20 / -11	3	Partial capture
10-04 02:56	40m	- / -	G3TKT	+2 / -	3	✓ Closing fragment
10-04 02:46	40m	- / -	9A3K	-8 / -	3	Partial capture
10-04 02:37	80m	- / -	UA4FKT	+6 / -	4	Partial capture
10-04 02:35	80m	+10 / -	HI3T	-17 / -23	5	✓ Closing observed
09-24 18:21	160m	- / -	IK6GPZ	-9 / -	3	Partial capture
09-24 18:19	160m	+6 / -	RI1FJZ	-14 / -12	4	✓ Closing observed
09-18 17:45	80m	- / -	HA7XL	+18 / -	3	Partial capture
08-31 16:42	40m	-8 / -	RI1FJL	- / -8	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
205330 -13 1364  IU0NAD UI3A -12
205345 -24 1581  UI3A R5KH KO91
205345 -14  250  UI3A IU0NAD R-03
205345  -8  824  UI3A DK7ZT -03
205400 -15 1461  UI3A RA0AF -03
205400  +5 1364  IU0NAD UI3A RR73
205415 -24 1582  UI3A R5KH KO91
205415 -16  250  UI3A IU0NAD 73
205415 -14  823  UI3A DK7ZT -03
205430  +3 1364  DK7ZT UI3A R-02
205445  -6  824  UI3A DK7ZT RR73
205530  -2 1364  R5KH UI3A +02 (x2)
205615 -24 1581  UI3A R5KH 73
205700  +5 1364  RV3SBS UI3A RR73

40m

UTC    dB Audio  Message
034845 +10 2656  YN1ZGN UI3A KO85 (x15)

80m

UTC    dB Audio  Message
174530 +15  709  UI3A HA7XL JN97 (x3)
023530  +2 2323  HI3T UI3A KO85 (x3)
023645 -17 1792  UI3A HI3T RR73
023700 +14 2517  HI3T UI3A 73
023715  +7 2517  UI3A UA4FKT LO23 (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.

CW

5 CW reception events in the last 30 days.

40m: 5 events; last heard 2026-10-17 16:49 UTC

Latest CW receptions

UTC	Band	kHz	S/N · 500 Hz	WPM	Listen
2026-10-17 16:49:09	40m	7027.239	17.7 dB	27.9	WebSDR ↗
2026-10-17 16:47:55	40m	7027.239	19 dB	—	WebSDR ↗
2026-10-17 16:46:53	40m	7027.239	18.8 dB	25.7	WebSDR ↗
2026-10-17 16:46:04	40m	7027.239	19.8 dB	—	WebSDR ↗
2026-10-17 16:43:34	40m	7027.238	6.3 dB	—	WebSDR ↗

CW reception history

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