UX5UO — 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 UX5UO, decoded by SO8OO in southeastern Poland. 5,687 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 70 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.

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 5,687 FT8 messages attributed to UX5UO as the transmitting token by decoded message structure across 70 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (72%), followed by 160 m (11%) and 40 m (10%). Most decodes (54%) fell within the six-hour window 19:00-01:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (92%); the estimated median was +8 dB.

Overview

5,687

Messages attributed

UTC dates decoded

452

Active 15-min windows

+8 dB

Estimated median S/N

Bands

160m · 611 80m · 4,123 40m · 545 20m · 408

First attributed message: 2026-06-07
Last attributed message: 2026-10-22 02:31 UTC

Observed FT8 message patterns

Attributed sample: 5,687 messages
Active dates: 70 UTC dates
Estimated median S/N: +8 dB
Estimated 10th-90th percentile: -7 to +18 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 139, moderate (-15 to -9 dB) 316, strong (≥ -8 dB) 5,232.

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 UX5UO in decoded directed-looking exchanges:

HK3TY · Colombia ×3 JA2VQF · Japan ×3 KE2FP · United States ×3 ON4MAP · Belgium ×3 F4EGM · France ×2 SP5GW · Poland ×2 JA7BXS · Japan ×2 JA8EPO · Japan ×2 NE5TX · United States ×2 3Z0L · Poland ×2 BA6IM · China ×2 BG2GWN · China ×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 UX5UO

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 · 4,027 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 658 km (approx.)
Last such locator decoded: 2026-10-22 02:31 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	UX5UO S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-22 02:30	80m	+23 / -	K3ATA	- / -	2	Partial capture
10-22 02:29	80m	+25 / -	WQ9N	- / -	3	Partial capture
10-22 02:26	80m	+25 / -6	W7WZ	0 / -1	7	✓ Full exchange observed
10-22 02:24	80m	+24 / -	W5BUY	- / -	2	Partial capture
10-22 02:22	80m	+27 / -	AI0Y	- / -	3	Partial capture
10-22 02:21	80m	+21 / -	K8SAW	- / -	2	Partial capture
10-22 02:19	80m	+25 / -	KA9JCP	- / -	3	Partial capture
10-22 02:18	80m	+22 / -	HI8LMF	- / -	2	Partial capture
10-22 02:15	80m	+26 / -	KK9W	- / -	4	Partial capture
10-22 02:12	80m	+26 / -	AB9QB	- / -	2	Partial capture
10-22 02:09	80m	+26 / -9	AB4SF	-6 / +2	4	✓ Full exchange observed
10-22 02:08	80m	+28 / -	K0BZ	- / 0	4	Partial capture
10-22 02:06	80m	+27 / -	K2ZC	- / -2	4	✓ Closing fragment
10-22 02:04	80m	+26 / -	KD0XD	- / -	2	Partial capture
10-22 02:02	80m	+24 / -	N4ZSA	- / -19	5	✓ Closing fragment
10-22 02:01	80m	+28 / -	K7PWS	- / -	2	Partial capture
10-22 01:59	80m	+32 / -	WF1B	- / -	2	Partial capture
10-22 01:58	80m	+27 / -	NX0R	- / -	2	Partial capture
10-22 01:57	80m	+26 / -	VE2LOA	-15 / +1	3	✓ Closing observed
10-22 01:56	80m	+24 / -	KZ3P	- / -14	2	✓ Closing fragment
10-22 01:54	80m	+22 / -	K2ZC	- / -	3	✓ Closing fragment
10-22 01:53	80m	+24 / -	K0MV	- / -	2	Partial capture
10-22 01:52	80m	+28 / -	KE2FP	- / 0	2	✓ Closing fragment
10-22 01:49	80m	+29 / -	SM4IED	+5 / -7	4	✓ Closing observed
10-22 01:47	80m	+21 / -	W5MF	- / -	3	Partial capture
10-22 01:21	80m	+29 / -	WB5JJJ	- / -	4	Partial capture
10-22 01:17	80m	+29 / -	WB6WUW	- / -	6	Partial capture
10-22 01:16	80m	+27 / -	K8OD	- / -	2	Partial capture
10-22 01:14	80m	+28 / -	N7RVD	- / -	2	Partial capture
10-22 01:11	80m	+24 / -	KU1CW	+2 / 0	5	✓ Closing observed
10-22 01:10	80m	+28 / -	K4WWA	- / -7	2	Partial capture
10-22 01:07	80m	+8 / -	KD8ECZ	- / -6	2	✓ Closing fragment
10-22 01:06	80m	+26 / -	N8PFK	- / -14	2	✓ Closing fragment
10-22 01:03	80m	+26 / -	W1MSN	- / +1	2	✓ Closing fragment
10-22 01:02	80m	+30 / -	K8OD	- / -	2	Partial capture
10-22 01:01	80m	+28 / -	UT0UO	- / -	2	Partial capture
10-22 00:57	80m	+28 / -	AB1TZ	- / +2	3	✓ Closing fragment
10-22 00:54	80m	+22 / -	K8DV	- / 0	5	✓ Closing fragment
10-22 00:52	80m	+32 / -	N0MGB	- / -	2	Partial capture
10-22 00:50	80m	+30 / -	AE3JM	- / -	2	Partial capture
10-22 00:48	80m	+30 / -	AJ4IT	- / -	2	Partial capture
10-22 00:45	80m	+27 / -	KQ4TV	- / -	3	Partial capture
10-22 00:44	80m	+28 / -	N5MIG	- / -	2	Partial capture
10-22 00:40	80m	+25 / -	AE3JM	- / -	5	Partial capture
10-22 00:37	80m	+24 / -	K8OD	- / -	4	Partial capture
10-22 00:36	80m	+12 / -	AE0PB	- / -	2	Partial capture
10-22 00:34	80m	+10 / -	WV8U	- / -	3	Partial capture
10-21 23:37	80m	+28 / -	WD4IKI	- / -	4	Partial capture
10-21 23:34	80m	+24 / -	KB9LQA	- / -14	4	✓ Closing fragment
10-21 23:31	80m	+28 / -	KB9LQA	- / -11	3	Partial capture

Recent FT8 messages decoded at SO8OO

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

80m

UTC    dB Audio  Message
022430 +25  624  W5BUY UX5UO KO50 (x2)
022615 +24  624  W7WZ UX5UO KO50 (x3)
022730  +3  854  UX5UO W7WZ -06
022745 +25  624  W7WZ UX5UO R-01
022800  -2  854  UX5UO W7WZ RR73
022815 +26  624  W7WZ UX5UO 73
022915 +26  624  WQ9N UX5UO KO50 (x3)
023045 +22  624  K3ATA UX5UO KO50 (x2)
043045  -9  624  UX5UO F1PSX JN08

10m

UTC    dB Audio  Message
170915 -23 1842  UX5UO F4NMY RR73
173815  +6 2505  UX5UO UR5QW -21 (x4)
161745 -16 1302  UX5UO SV1QN KM18 (x2)
105915  -8  666  UX5UO CR7BRV -04 (x2)
094715 -11 2619  UX5UO A92AE RR73
145245  -5 1203  UX5UO EA4FME IN80 (x3)
101100 -11  919  UX5UO SU8JOTA -16
160845  -9 1196  UX5UO CR7BUJ -12

40m

UTC    dB Audio  Message
232515 -10 1133  EA7R UX5UO R-23 (x2)
232845 -11 1134  F5NMJ UX5UO KO50 (x6)
075730  -4 1089  DL3DQL/P UX5UO KO50 (x2)
075815 -13 1088  UX5UO DL3DQL/P +03
075830  -2 1088  DL3DQL/P UX5UO R-11
203200 -16 1541  UX5UO CT7AXN -07
205100  +0 2994  UX5UO MW0DNF -05
215415 -15 1881  UX5UO IT9ACJ/I/AE +03

160m

UTC    dB Audio  Message
005930 +15  631  CT2GQA UX5UO R-26 (x3)
010345 +14  631  EC1AIJ UX5UO KO50 (x2)
011100  +6  632  KB3VQC UX5UO KO50 (x5)
012130 +16  632  WP4U UX5UO KO50 (x3)
213500 +12  631  DA125RH UX5UO KO50
213600  +8 1306  DB100FT UX5UO KO50

20m

UTC    dB Audio  Message
104745  -7 1389  <...> UX5UO KO50 (x3)
110545  -3 1293  UX5UO GB64MOD -12
111115  -8 2064  UX5UO IR7MGGC -10
155030  -5  326  UX5UO BG0DAP RR73 (x2)
155130  +1 1279  UX5UO M7YPZ IO81
155130  -5  326  UX5UO BG0DAP NN33 (x7)

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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