UR5WAI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KN19

Receiver-side FT8 activity involving UR5WAI, decoded by SO8OO in southeastern Poland. 545 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-04.

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 545 FT8 messages attributed to UR5WAI as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (82%), followed by 40 m (16%) and 160 m (3%). Most decodes (91%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was +11 dB.

Overview

545

Messages attributed

UTC dates decoded

Active 15-min windows

+11 dB

Estimated median S/N

Bands

160m · 14 80m · 445 40m · 86

First attributed message: 2026-06-06
Last attributed message: 2026-09-04 02:01 UTC

Observed FT8 message patterns

Attributed sample: 545 messages
Active dates: 29 UTC dates
Estimated median S/N: +11 dB
Estimated 10th-90th percentile: -9 to +20 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 52, strong (≥ -8 dB) 487.

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 UR5WAI in decoded directed-looking exchanges:

TM2WWA · France ×5 TM8WWA · France ×4 US5WAN · Ukraine ×4 II6WWA · Italy ×3 CN2DX · Morocco ×2 DG8DC · Fed. Rep. of Germany ×2 EC5M · Spain ×2 II5WWA · Italy ×2 II7WWA · Italy ×2 M0BEW · England ×2 GB2WWA · England ×2 II0WWA · Italy ×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 UR5WAI

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: KN19 · 182 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 100 km (approx.)
Last such locator decoded: 2026-09-04 01:58 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	UR5WAI S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-04 01:59	160m	-8 / -	SP2LLP	- / -7	3	Partial capture
09-02 19:00	80m	- / -	DF8XC	+3 / -	2	Partial capture
08-21 19:54	20m	- / -9	YU7OM	+8 / -	3	Partial capture
08-21 19:24	20m	- / 0	S52D	0 / -	3	✓ Closing fragment
08-20 19:45	20m	- / -	CT7AUT	+5 / -	4	Partial capture
08-20 18:44	80m	- / -	UA4FKT	+9 / -	4	Partial capture
08-20 18:42	80m	+8 / -	<...>	- / -19	4	Partial capture
08-19 20:16	80m	+13 / -13	IK0SHH	+6 / -	4	Partial capture
08-19 20:13	80m	+5 / -	G4YKQ	-7 / -14	5	✓ Closing observed
08-19 20:13	80m	+14 / +8	UA4FKT	+14 / -4	6	✓ Full exchange observed
08-19 20:11	80m	+15 / -8	UR5ZHJ	+8 / -8	3	✓ Full exchange observed
08-19 20:09	80m	+14 / -	HF9T	-6 / -6	6	✓ Closing observed
08-19 20:07	80m	+10 / -	HA1TIB	- / -18	2	✓ Closing fragment
08-19 19:39	80m	+16 / -	<...>	- / -22	2	Partial capture
08-19 19:33	80m	+15 / -20	EN35UKR	-13 / -22	10	Partial capture
08-19 19:16	80m	+16 / -	EN35UKR	- / -18	9	Partial capture
08-19 19:12	80m	+10 / -8	UT7UA	+8 / -4	4	✓ Full exchange observed
08-19 19:06	80m	+18 / -	<...>	- / -17	6	Partial capture
08-19 19:04	80m	+14 / -	UT7UA	- / -	3	Partial capture
08-19 18:50	80m	+12 / -	EN35UKR	- / -	6	Partial capture
08-18 21:16	80m	+7 / -	G3YHN	-4 / -13	3	✓ Closing observed
08-18 21:15	80m	+12 / -14	GB8VJ	-18 / -20	5	✓ Full exchange observed
08-18 21:14	80m	+9 / -	LY8O	-2 / -8	4	✓ Closing observed
08-18 21:13	80m	- / -	UA4FKT	+8 / -	2	Partial capture
08-18 21:12	80m	+8 / +3	HA7TM	+20 / -9	5	✓ Closing observed
08-18 21:10	80m	+3 / +10	SP6JIU	+28 / +1	4	✓ Full exchange observed
08-18 21:08	80m	+9 / -4	DO7RMA	-3 / -7	6	✓ Full exchange observed
08-18 21:05	80m	+8 / -	SQ5EKY	+4 / 0	5	✓ Closing observed
08-18 21:03	80m	+12 / -	OZ5AGJ	+3 / -	2	✓ Closing observed
08-18 21:02	80m	-20 / -	HA7TM	+22 / -4	3	Partial capture
08-18 21:00	80m	+8 / -	YT1DDL	+4 / -9	5	✓ Closing observed
08-18 12:47	10m	- / -1	DK7UY	-4 / -	2	✓ Closing fragment
08-17 20:44	80m	+18 / -	EN35UKR	- / -16	7	Partial capture
08-17 20:25	80m	+17 / -16	EN35UKR	-5 / -20	2	Partial capture
08-17 20:24	80m	+8 / -	DO7TTR/P	- / -20	3	Partial capture
08-17 19:47	80m	+6 / -19	EN35UKR	-9 / -	9	Partial capture
08-17 19:28	80m	- / -23	EN35UKR	-15 / -	10	Partial capture
08-17 19:27	80m	+13 / -	<...>	- / -	6	Partial capture
08-17 19:21	80m	+20 / -	US5WAN	+17 / -4	4	✓ Closing observed
08-17 19:08	80m	+13 / -	OK1VKX	+9 / -8	10	Partial capture
08-17 19:02	80m	+8 / -	DO1BWS	-8 / -14	4	✓ Closing observed
08-17 19:02	80m	- / -	IQ4JO	-2 / -	2	Partial capture
08-17 18:56	80m	+12 / -5	HF5A	+10 / -7	4	✓ Full exchange observed
08-17 18:56	80m	- / -3	US5WFL	-7 / -	2	Partial capture
08-16 23:26	20m	- / -23	EN35UKR	-16 / -	2	Partial capture
08-16 20:22	80m	+8 / -	HA7TM	+17 / -1	4	Partial capture
08-16 20:21	80m	+4 / -	YO3OBB	-1 / -12	3	✓ Closing observed
08-16 20:19	80m	+4 / -	US5WFL	+3 / -13	3	✓ Closing observed
08-16 20:08	80m	+14 / -	DO2RG	- / -8	4	Partial capture
08-16 17:38	80m	+17 / -	9A3AUH	+1 / -16	7	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
203700  +6  492  UR5WAI SP2LLP JO94 (x2)
203745  -2  350  SP2LLP UR5WAI R-13
203800  +1  492  UR5WAI SP2LLP R-11
203815  +6  350  SP2LLP UR5WAI R-13
203830  +5  492  UR5WAI SP2LLP R-11
203845  +3  350  SP2LLP UR5WAI 73
203930  +8  492  UR5WAI SP2LLP 73
015700  -6 1381  CQ UR5WAI KN19 (x4)
015930  -5  394  SP2LLP UR5WAI R-07 (x3)

80m

UTC    dB Audio  Message
201715  +6 1531  UR5WAI IK0SHH -13 (x3)
184200  +7  308  <...> UR5WAI KN19 (x2)
184245 -10 2187  UR5WAI EN35UKR -13
184300 +10  308  <...> UR5WAI R-19 (x2)
184415  +8  309  UR5WAI UA4FKT LO23 (x4)
190015  +2  487  UR5WAI DF8XC JO41 (x2)
190700 +27  435  CQ UR5WAI KN19

20m

UTC    dB Audio  Message
194545  +6 1527  UR5WAI CT7AUT IM67 (x4)
144845 -14 2324  UR5WAI OZ9FF RR73
145015  +7  745  UR5WAI ON4AOI RR73
145800 +14 2600  UR5WAI F5OYA/P +18
174615  -3 1411  UR5WAI DM2DXA RR73
192430  -2 1421  UR5WAI S52D +00 (x3)
195415  +8 2756  UR5WAI YU7OM -09 (x3)
195515  +2  709  UR5WAI M9KTM RR73

10m

UTC    dB Audio  Message
191415  -8 2095  UR5WAI OK1ZJK 73
191645  +3 2796  UR5WAI F1PBZ RR73
192600 -13  867  UR5WAI PI4DX RR73
145130 -22 1569  UR5WAI DO3FA -12
182015  -3 1780  UR5WAI EA8UP -17 (x3)
132845  +7 1303  UR5WAI IZ2FOS RR73
135645  -2 2639  UR5WAI F1PBZ -01
175715  -3  677  UR5WAI M0BEW -05 (x2)
205115 -14 1017  UR5WAI EN35UKR -07
124745  +0 2498  UR5WAI DK7UY R-01 (x2)
125900 -19 1881  UR5WAI DG5FAZ RR73

40m

UTC    dB Audio  Message
202645  +9 2856  UR5WAI LY2HM RR73
234845 -17 1734  UR5WAI SP0DF -01
234845 -15 1967  UR5WAI F5RRS JN36
234945 -18 1734  UR5WAI SP0DF RR73
234945 -19 1966  UR5WAI F5RRS JN36 (x2)
235215 -24 1986  UR5WAI DL3IAK JN49 (x2)
173230  -8  976  UR5WAI EN35UKR -20
173530  -1 2537  UR5WAI UR7FM RR73
190115  -8  444  UT3XM UR5WAI R-07
190145 -10  444  UT7AA UR5WAI R-07
190430  -3 2803  UR5WAI YO3GNF RR73 (x2)
191145 -11  410  UR5WAI F1IQH JN27

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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