UR3UI — 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: Ukraine Most frequent locator attributed to this token: KO50

Receiver-side FT8 activity involving UR3UI, decoded by SO8OO in southeastern Poland. 46 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-18 and 2026-09-22.

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 46 FT8 messages attributed to UR3UI as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (63%), followed by 40 m (28%) and 10 m (9%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (80%); the estimated median was -2 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-2 dB

Estimated median S/N

Bands

40m · 13 20m · 29 10m · 4

First attributed message: 2026-07-18
Last attributed message: 2026-09-22 14:54 UTC

Observed FT8 message patterns

Attributed sample: 46 messages
Active dates: 4 UTC dates
Estimated median S/N: -2 dB
Estimated 10th-90th percentile: -13 to +8 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 37.

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 UR3UI in decoded directed-looking exchanges:

DL1R · Fed. Rep. of Germany ×2 DH3KR · Fed. Rep. of Germany DL1EBW · Fed. Rep. of Germany GM3JIM · Scotland M0BEW · England PD0WC · Netherlands SP9Y · Poland EA5OL · Spain G3WAG · England HZ1TT · Saudi Arabia

Most frequent locator attributed to UR3UI

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: KO50 · 26 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 658 km (approx.)
Last such locator decoded: 2026-09-22 14:51 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	UR3UI S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-22 14:51	40m	-10 / -11	3Z100PKP	0 / -10	5	Partial capture
09-17 18:24	40m	-6 / -	UB4COE/P	- / -	2	Partial capture
09-17 18:15	40m	-1 / -	EA5OL	- / -14	4	✓ Closing fragment
09-17 18:13	40m	-7 / -	G3WAG	-8 / -12	4	✓ Closing observed
09-17 16:18	40m	-9 / -12	HZ1TT	-8 / -1	6	✓ Full exchange observed
08-23 17:49	20m	-6 / -	DL1EBW	- / -5	2	✓ Closing fragment
08-23 17:42	20m	+4 / -4	PD0WC	+7 / -4	5	✓ Full exchange observed
08-23 17:37	20m	0 / -	DL1R	- / -7	4	✓ Closing fragment
08-23 17:36	20m	- / -	IK2ZJR	+1 / -	9	Partial capture
08-08 12:38	20m	- / -13	PD1HPB	-19 / -	4	Partial capture
08-08 12:34	20m	- / -	PD3LKN	-17 / -	2	Partial capture
08-08 12:26	20m	- / -1	M0BEW	-12 / -	3	✓ Closing fragment
08-05 09:23	20m	- / -19	PD1ADA	-16 / -	13	Partial capture
08-05 09:22	20m	- / -7	RN6MA	-2 / -	4	Partial capture
07-31 19:32	20m	- / -	GM3JIM	-16 / -	2	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
181300  -6 2491  G3WAG UR3UI KO50 (x2)
181345  -8 2490  UR3UI G3WAG RR73
181400  -3 2490  G3WAG UR3UI 73
181530  -4  747  EA5OL UR3UI KO50 (x4)
182445  -7 2496  UB4COE/P UR3UI KO50 (x2)
145145 -13  313  3Z100PKP UR3UI KO50
145230  +0  312  UR3UI 3Z100PKP -11 (x3)
145415  -6  313  3Z100PKP UR3UI R-10

20m

UTC    dB Audio  Message
174515 +13 2720  CQ UR3UI KO50 (x2)
174645  +8 2720  SP9Y UR3UI RR73
174715  +2 2719  CQ UR3UI KO50 (x2)
174915  -7 2720  DL1EBW UR3UI -05 (x2)
175015  -5 2720  CQ UR3UI KO50 (x8)

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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