UT7UJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KO50

Receiver-side FT8 activity involving UT7UJ, decoded by SO8OO in southeastern Poland. 12,453 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, 10m, across 41 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-30.

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 12,453 FT8 messages attributed to UT7UJ as the transmitting token by decoded message structure across 41 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (88%), followed by 40 m (9%) and 10 m (3%). The busiest six-hour window was 05:00-11:00 UTC, containing 45% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was +2.5 dB.

Overview

12,453

Messages attributed

UTC dates decoded

852

Active 15-min windows

+2.5 dB

Estimated median S/N

Bands

60m · 2 40m · 1,102 20m · 10,923 10m · 426

First attributed message: 2026-06-08
Last attributed message: 2026-08-30 16:05 UTC

Observed FT8 message patterns

Attributed sample: 12,453 messages
Active dates: 41 UTC dates
Estimated median S/N: +2.5 dB
Estimated 10th-90th percentile: -13 to +15.2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 715, moderate (-15 to -9 dB) 1,577, strong (≥ -8 dB) 10,161.

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 UT7UJ in decoded directed-looking exchanges:

MM7CEH · Scotland ×4 K1HC · United States ×3 WA2HMM · United States ×3 LZ3CB · Bulgaria ×2 IW5ALZ · Italy ×2 YU5DR · Serbia ×2 OZ7AEI · Denmark ×2 PA2RSD · Netherlands ×2 PD1ADA · Netherlands ×2 M6XEL · England ×2 VK7ZBX · Australia ×2 MM0LGJ · Scotland ×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 UT7UJ

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 · 4,356 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 658 km (approx.)
Last such locator decoded: 2026-08-29 04:20 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	UT7UJ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 00:35	20m	- / -	SQ1DOZ	-2 / -	3	Partial capture
08-30 17:48	20m	- / +3	M9PAW	+9 / -	4	Partial capture
08-30 17:48	20m	- / -1	G0NAD	+11 / -	2	Partial capture
08-30 17:29	20m	- / -6	ON3RV	-11 / -	9	Partial capture
08-30 17:01	20m	- / -26	IZ3ZPO	+8 / -	2	Partial capture
08-30 16:56	20m	- / +7	IZ3ZPO	+10 / -	5	Partial capture
08-30 16:46	20m	- / -6	PA1JOZ	-14 / -	3	Partial capture
08-30 16:29	20m	- / -6	PD9SD	-2 / -	2	Partial capture
08-30 16:03	20m	- / -3	IZ0DIB	-14 / -	2	Partial capture
08-30 15:53	20m	- / 0	IZ0PTY	-6 / -	3	Partial capture
08-30 15:44	20m	- / -	HB9TLI	+3 / -	4	✓ Closing fragment
08-30 15:32	20m	- / -6	DD1JAN	-10 / -	2	Partial capture
08-30 15:13	20m	- / -	DC9LJ	-14 / -	3	Partial capture
08-30 15:04	20m	- / -	PE1IDG	-13 / -	2	Partial capture
08-30 14:56	20m	- / +3	ON3HTB	-16 / -	2	Partial capture
08-30 14:39	20m	- / +2	DJ0VOG	-1 / -	2	✓ Closing fragment
08-30 14:20	20m	-18 / -	2E0JGM	- / -14	2	Partial capture
08-30 14:13	20m	- / -	EA2AA	-4 / -	2	✓ Closing fragment
08-30 14:11	20m	- / -2	F8CQO	-12 / -	2	✓ Closing fragment
08-30 14:04	20m	- / -15	2E0DGP	-10 / -	3	Partial capture
08-30 14:02	20m	- / -15	F4VWS	+3 / -	2	✓ Closing fragment
08-30 13:25	20m	- / -12	GB2WVR	-6 / -	2	✓ Closing fragment
08-30 13:02	20m	- / -	G6VES	-17 / -	2	Partial capture
08-30 12:43	20m	- / -2	DG3FC	-12 / -	2	✓ Closing fragment
08-30 12:39	20m	- / +5	ON4AVV	+8 / -	2	✓ Closing fragment
08-30 12:36	20m	- / -	PD3FJJ	-10 / -	2	✓ Closing fragment
08-30 12:24	20m	- / +4	ON4AVV	-7 / -	2	Partial capture
08-30 12:19	20m	- / +4	DC2TL	-16 / -	2	✓ Closing fragment
08-30 12:09	20m	- / -3	M5ADL	-5 / -	2	✓ Closing fragment
08-30 11:51	20m	+1 / -	N0YY	- / -1	5	Partial capture
08-30 11:50	20m	+2 / -7	IU8WRA	-4 / -15	4	✓ Full exchange observed
08-30 11:48	20m	+2 / -	SM3UQO	- / -24	4	✓ Closing fragment
08-30 11:45	20m	+14 / +3	IZ1MRO	0 / -12	8	✓ Full exchange observed
08-30 11:44	20m	+12 / -	M0UTD	- / +6	2	Partial capture
08-30 11:43	20m	+6 / -	DL6OAA	-6 / -	3	✓ Full exchange observed
08-30 11:40	20m	- / +2	DL8OBF	-14 / -	2	Partial capture
08-30 11:40	20m	+4 / -	DJ0BS	- / +6	2	Partial capture
08-30 11:09	20m	- / +4	TA3HEB	+12 / -	2	✓ Closing fragment
08-30 10:56	20m	-17 / -	F8EFJ	- / -2	3	Partial capture
08-30 10:53	20m	-12 / -	EA4HHN	- / -2	3	Partial capture
08-30 10:52	20m	- / +5	G6RST	0 / -	2	✓ Closing fragment
08-30 10:48	20m	+6 / -	F4MRJ/P	+6 / -5	4	✓ Full exchange observed
08-30 10:45	20m	-4 / -	YL2IV	- / -24	3	Partial capture
08-30 10:43	20m	0 / -	EA4HHN	- / -22	2	Partial capture
08-30 10:39	20m	+8 / -	SQ8GMW	- / -16	2	✓ Closing fragment
08-30 10:38	20m	+1 / -10	PC5R	-8 / -23	4	✓ Full exchange observed
08-30 10:32	20m	+10 / -	EA3IDH	- / -16	2	✓ Closing fragment
08-30 10:31	20m	+4 / -	SQ9DHD	- / -8	2	✓ Closing fragment
08-30 10:27	20m	-1 / -	IQ0CV	- / +3	3	Partial capture
08-30 10:24	20m	+2 / -	IZ0RDM	- / +8	5	Partial capture

Recent FT8 messages decoded at SO8OO

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

20m

UTC    dB Audio  Message
173130 -12 1315  UT7UJ ON3RV R-06 (x5)
173600 -11  702  UT7UJ M3FRS R-05
174800  +9 1134  UT7UJ G0NAD R-01
174815  +8  847  UT7UJ M9PAW R+03 (x2)
174900 +13 1134  UT7UJ G0NAD R-01
174915 +11  847  UT7UJ M9PAW R+03 (x2)
003545  -2 1739  UT7UJ SQ1DOZ JO73 (x3)

40m

UTC    dB Audio  Message
035645  +3 2533  CE8VSO UT7UJ -19
035730  -2 2533  W5J UT7UJ -11 (x7)
041330 -19 2533  UT7UJ KJ4QVJ R-10
041745 -11 2515  N2SQW UT7UJ -17 (x4)
041945  -7 2412  CQ UT7UJ KO50 (x2)

10m

UTC    dB Audio  Message
090930 -10 2346  UT7UJ I4MKN 73
092000  +4 2178  UT7UJ IK2GAU R+03 (x2)
092245 -21 2002  UT7UJ IU3UQW 73
102945 -12 1308  UT7UJ I1/IZ2MHO R-11 (x2)
105830 -13 1900  UT7UJ OO6P R-10 (x2)
110745  +2 2894  UT7UJ DM2FX R+04 (x3)
111645  -9  764  UT7UJ DF1AG R-01 (x2)
112745  -8 2552  UT7UJ DN9MAW R+01 (x2)

60m

UTC    dB Audio  Message
034115  -2 2557  ER3UA UT7UJ -07
034200  -3 2138  UT7UJ ER3UA R+00
034215  -2 2557  ER3UA UT7UJ RR73
034230  -2 2138  UT7UJ ER3UA 73

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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