UR4QWW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KN77

Receiver-side FT8 activity involving UR4QWW, decoded by SO8OO in southeastern Poland. 17,075 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 82 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-04.

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 17,075 FT8 messages attributed to UR4QWW as the transmitting token by decoded message structure across 82 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (53%), followed by 40 m (31%) and 10 m (10%). The busiest six-hour window was 02:00-08:00 UTC, containing 40% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

17,075

Messages attributed

UTC dates decoded

1,608

Active 15-min windows

-8 dB

Estimated median S/N

Bands

160m · 1 80m · 1,064 40m · 5,239 20m · 9,012 10m · 1,759

First attributed message: 2026-06-06
Last attributed message: 2026-10-04 20:34 UTC

Observed FT8 message patterns

Attributed sample: 17,075 messages
Active dates: 82 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -19 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3,291, moderate (-15 to -9 dB) 4,803, strong (≥ -8 dB) 8,981.

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 UR4QWW in decoded directed-looking exchanges:

DG1YHP · Fed. Rep. of Germany ×3 KQ4ZAX · United States ×2 M7HQE · England ×2 SQ1RTU · Poland ×2 VE3PFW · Canada ×2 EG1SDC · Spain ×2 EH3ST · Spain ×2 G0ORC · England ×2 PD3FR · Netherlands ×2 UR5WBO · Ukraine ×2 VK6BAD · Australia ×2 YL3GQ · Latvia ×2

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 UR4QWW

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: KN77 · 13,990 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,005 km (approx.)
Last such locator decoded: 2026-10-04 20:33 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	UR4QWW S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-04 20:31	40m	-7 / -	CN8NY	- / -11	6	Partial capture
10-04 20:23	40m	-6 / -	IQ6MW	- / -	12	Partial capture
10-04 20:18	80m	-10 / -	JA4FKX	- / -	4	Partial capture
10-04 20:12	80m	-8 / -	JA4FKX	- / -	5	Partial capture
10-04 20:05	80m	-4 / -	DJ7M	- / -	2	Partial capture
10-04 16:26	40m	-7 / -2	OK1DXR	-4 / -13	6	✓ Full exchange observed
10-04 16:24	40m	-7 / -	IZ5ILH	- / -12	2	✓ Closing fragment
10-04 05:47	40m	-12 / -	IQ6MW	- / -	8	Partial capture
10-04 05:46	40m	-12 / -14	F5OZC	-4 / -	4	✓ Closing observed
10-04 05:45	40m	-12 / -	OK2UDP	- / -13	2	✓ Closing fragment
10-04 05:34	40m	-10 / -	EI2IXB	- / -	2	Partial capture
10-04 05:27	40m	-11 / -	EI2IXB	- / -	5	Partial capture
10-04 04:53	40m	-8 / -	SUB/IZ6BUV	- / -	2	Partial capture
10-04 04:45	40m	- / -	M0CKX	-15 / -	3	Partial capture
10-04 04:41	40m	-10 / -	IV3DGE	- / -17	3	✓ Closing fragment
10-04 04:20	80m	-13 / -	YO3WST	- / -	6	Partial capture
10-04 04:15	80m	-12 / -	YO3WST	- / -	5	Partial capture
10-04 04:06	80m	- / -	RX3ASQ	-7 / -	2	Partial capture
10-04 03:57	40m	-7 / -	KE2FP	- / -	13	Partial capture
10-04 03:50	40m	-8 / -	SUB/IZ6BUV	- / -	4	Partial capture
10-04 03:30	80m	-13 / -13	ON3ANY	+8 / -	2	Partial capture
10-04 03:28	80m	- / -	R2AL	-4 / -	4	Partial capture
10-04 03:22	80m	- / -	DO1OAS	-7 / -	11	Partial capture
10-04 03:21	80m	- / -18	DO2NTC	-9 / -	3	Partial capture
10-04 03:08	40m	-17 / -	TJ1GD	- / -22	8	Partial capture
10-04 03:04	80m	- / -	RX3ASQ	0 / -	2	Partial capture
10-04 03:03	80m	- / -	R2AL	+8 / -	4	Partial capture
10-04 02:36	40m	- / -25	W1YK	-16 / -	4	Partial capture
10-04 02:09	80m	- / -	WF2A	-1 / -	3	Partial capture
10-04 01:47	80m	- / -	DO1OAS	-2 / -	10	Partial capture
10-04 01:36	80m	-2 / -6	E75C	+13 / -6	5	✓ Full exchange observed
10-04 01:35	80m	- / -	R2AL	+5 / -	3	Partial capture
10-04 01:33	80m	- / -	RX3ASQ	+4 / -	2	Partial capture
10-04 01:31	40m	- / -	UA9SY	-8 / -	2	Partial capture
10-04 01:27	80m	- / -10	RY3F	+2 / -	2	Partial capture
10-04 01:27	80m	- / -	R2AL	+5 / -	4	Partial capture
10-04 01:26	80m	- / -	RX3ASQ	0 / -	2	Partial capture
10-04 01:09	80m	- / +3	OH7FNB	-7 / -	3	✓ Closing fragment
10-04 01:06	80m	- / -	RX3ASQ	+1 / -	2	Partial capture
10-04 00:51	80m	- / -6	ON1JP	-13 / -	3	Partial capture
10-04 00:25	80m	- / -4	RY3F	+11 / -	3	Partial capture
10-04 00:24	80m	- / -	RX3ASQ	+13 / -	2	Partial capture
10-04 00:03	80m	- / -2	RY3F	-1 / -	3	Partial capture
10-04 00:02	80m	- / -	R2AL	+4 / -	4	Partial capture
10-04 00:01	80m	- / -	RX3ASQ	+2 / -	2	Partial capture
10-03 23:20	80m	-6 / -	DH3MFW	- / -8	4	✓ Closing fragment
10-03 23:17	80m	- / -	R2AL	+6 / -	6	Partial capture
10-03 23:17	80m	- / -	RX3ASQ	-3 / -	2	Partial capture
10-03 23:15	40m	- / -	RX9WM	-12 / -	2	Partial capture
10-03 23:11	80m	- / -	DO4EB	-14 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
202645  -6 1065  IQ6MW UR4QWW KN77 (x9)
203145  -9 1065  CN8NY UR4QWW KN77 (x6)

80m

UTC    dB Audio  Message
200215  -4 1031  CQ UR4QWW KN77 (x2)
200300  +9 1030  UR4QWW UA4FKT LO23
200515  -3 1031  DJ7M UR4QWW KN77 (x3)
201230 -11 1030  JA4FKX UR4QWW KN77 (x9)

10m

UTC    dB Audio  Message
082115 -21 1892  CQ UR4QWW KN77 (x4)
082515 -17 1893  UR4QWW R7OV KN87 (x2)
083845 -24 1888  CQ UR4QWW KN77                        a1
085245 -24 1886  DS5ACV UR4QWW R-15
094745  -1  592  UR4QWW IK4IDP -13 (x2)
090730 -11  900  UR4QWW IT9IVN -15 (x3)
135215 -16 1014  UR4QWW 7Z1BQ -20 (x2)

160m

UTC    dB Audio  Message
233315 -16 2436  CQ UR4QWW KN77                        a1

20m

UTC    dB Audio  Message
063815 -11 1587  RI1FJL UR4QWW KN77 (x12)
074715  -6 2103  UR4QWW II7MGBT +03
074845 -23 1579  II7MGBT UR4QWW KN77
075030  +5 2519  UR4QWW YO1BRANCUSI -15

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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