UR3QKC — FT8 activity observed at SO8OO

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

Receiver-side FT8 activity involving UR3QKC, decoded by SO8OO in southeastern Poland. 122 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 24 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-15.

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 122 FT8 messages attributed to UR3QKC as the transmitting token by decoded message structure across 24 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (45%), followed by 10 m (39%) and 20 m (16%). Most decodes (61%) fell within the six-hour window 15:00-21:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -4 dB.

Overview

122

Messages attributed

UTC dates decoded

Active 15-min windows

-4 dB

Estimated median S/N

Bands

40m · 55 20m · 19 10m · 48

First attributed message: 2026-06-07
Last attributed message: 2026-09-15 19:29 UTC

Observed FT8 message patterns

Attributed sample: 122 messages
Active dates: 24 UTC dates
Estimated median S/N: -4 dB
Estimated 10th-90th percentile: -15 to +4 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 85.

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 UR3QKC in decoded directed-looking exchanges:

DL3VCO · Fed. Rep. of Germany DN9AD · Fed. Rep. of Germany FM4LV · Martinique IK4LZH · Italy S59MA · Slovenia SP9Y · Poland SQ2RAD · Poland DH0GBC · Fed. Rep. of Germany OK1IG · Czech Republic OM3CPV · Slovak Republic EH3PDA · Spain EH3ST · Spain

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 UR3QKC

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 · 58 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,005 km (approx.)
Last such locator decoded: 2026-09-15 19:23 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	UR3QKC S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-15 19:28	40m	+1 / -	OM3PR	- / -16	3	✓ Closing fragment
09-15 19:24	40m	-2 / -8	HB9HUD	-17 / -17	7	✓ Full exchange observed
09-15 19:23	40m	-5 / -	IU5JKZ	- / -15	2	Partial capture
09-15 19:22	40m	-2 / -	YB2TTM	- / -20	2	✓ Closing fragment
09-15 19:21	40m	0 / -	DF3IS	+4 / -15	4	Partial capture
09-15 19:15	40m	+4 / -6	GJ0KYZ	-1 / -9	4	✓ Full exchange observed
09-15 19:13	40m	-3 / -	JN7FAH	- / -	2	Partial capture
09-14 04:25	40m	- / -	YO6LM	+8 / -	2	Partial capture
09-13 18:02	40m	-5 / -12	SQ9SET	-4 / -10	3	Partial capture
09-13 05:33	40m	+1 / -13	EH3ST	-12 / -14	4	✓ Full exchange observed
09-13 05:31	40m	-6 / -	YO3FVR/P	- / +1	2	Partial capture
09-13 05:28	40m	-6 / -	LZ3AI	- / -23	3	✓ Closing fragment
09-13 05:28	40m	-1 / -10	UR9QQ	-18 / -	3	✓ Closing observed
09-13 05:24	40m	-4 / -	YO3FVR/P	- / -	2	Partial capture
09-09 04:02	40m	+2 / -	EH3PDA	- / -24	4	Partial capture
09-09 03:58	40m	+3 / -	YO2MD	- / -	2	✓ Closing fragment
09-08 05:11	40m	0 / -	SQ5PTZ	- / -16	3	✓ Closing fragment
09-08 05:06	40m	-4 / -	SP7TF	- / -16	2	✓ Closing fragment
09-08 05:04	40m	-11 / -	UT2PC	- / -	2	Partial capture
08-29 06:53	20m	- / -14	YO4NF	0 / -	2	Partial capture
08-28 13:10	20m	- / +7	G8IXM	-10 / -	4	Partial capture
08-25 19:01	20m	- / -	F4NJU	-11 / -	4	Partial capture
08-25 18:59	20m	- / -	F1PPH	0 / -	2	Partial capture
07-28 14:04	20m	-19 / -3	CN2DX	-11 / -12	3	Partial capture
07-14 15:13	10m	-15 / -	SP9Y	- / -16	2	✓ Closing fragment
07-14 15:12	10m	-17 / -	RW6HP	-24 / -18	2	Partial capture
07-12 06:48	20m	-18 / -	OM3CPV	- / -10	3	✓ Closing fragment
06-29 08:42	10m	-5 / -	SQ2RAD	- / +4	3	✓ Closing fragment
06-28 20:13	10m	-3 / +5	IK4LZH	+1 / -11	8	✓ Full exchange observed
06-28 20:09	10m	-2 / -	US4UU	- / -	2	Partial capture
06-28 20:01	10m	-3 / -	FM4LV	- / -25	3	✓ Closing fragment
06-28 19:59	10m	-4 / +4	PV8AJ	-15 / -5	2	Partial capture
06-25 19:01	20m	-12 / -	DH0GBC	-12 / -16	3	✓ Closing observed
06-25 18:57	20m	-14 / -	TR8CA	- / -12	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
192215  -1 1333  YB2TTM UR3QKC R-20 (x2)
192315  -6 1333  CQ UR3QKC KN77
192345  -5 1333  IU5JKZ UR3QKC R-15 (x2)
192430 -13 1333  UR3QKC HB9HUD JN47
192445  -2 1333  HB9HUD UR3QKC -17
192500 -19 1333  UR3QKC HB9HUD JN47
192515  -4 1333  HB9HUD UR3QKC -13
192530 -22 1333  UR3QKC HB9HUD R-08
192545  -1 1333  HB9HUD UR3QKC RR73
192600 -13 1333  UR3QKC HB9HUD 73
192815  +4 1332  OM3PR UR3QKC -16 (x3)

20m

UTC    dB Audio  Message
185915 +11 1527  UR3QKC PD3LKN JO22
185945  +1 1527  UR3QKC F1PPH JN07 (x2)
190115  -4 1528  UR3QKC F4NJU JN29 (x4)
131015  -6  861  UR3QKC G8IXM JO02 (x4)
065230  -9 1805  SP5DJ UR3QKC R-24
065315  -4 1806  UR3QKC YO4NF -14 (x2)
174400 -10 1774  OK1IG UR3QKC 73

10m

UTC    dB Audio  Message
084245  -5 1703  SQ2RAD UR3QKC KN77 (x3)
093800  -2 1378  <...> UR3QKC R-09 (x3)
080915 -13  815  S59MA UR3QKC RR73
081215 -14  815  DN9AD UR3QKC RR73
162600  -8 1209  DL3VCO UR3QKC RR73
151145 -24 1557  CQ UR3QKC KN77                        a1 (x2)
151230 -24 1602  UR3QKC RW6HP LN14
151245 -17 1558  RW6HP UR3QKC -18
151315 -16 1557  SP9Y UR3QKC -16 (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.

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