UB9USV — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Asiatic Russia Most frequent locator attributed to this token: NO33

Receiver-side FT8 activity involving UB9USV, decoded by SO8OO in southeastern Poland. 187 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-14.

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 187 FT8 messages attributed to UB9USV as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (95%), followed by 40 m (5%). The busiest six-hour window was 11:00-17:00 UTC, containing 43% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

187

Messages attributed

UTC dates decoded

Active 15-min windows

-9 dB

Estimated median S/N

Bands

40m · 10 20m · 177

First attributed message: 2026-06-06
Last attributed message: 2026-09-14 17:45 UTC

Observed FT8 message patterns

Attributed sample: 187 messages
Active dates: 33 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -19 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 41, moderate (-15 to -9 dB) 56, strong (≥ -8 dB) 90.

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 UB9USV in decoded directed-looking exchanges:

LZ1ZF · Bulgaria ×5 RA3Y · European Russia ×2 RL6MT · European Russia ×2 K2TQC · United States R2SBI · European Russia R2ZDO · European Russia R3NCG · European Russia R3PAA · European Russia R50RKZ · European Russia R6DZR · European Russia R6OP · European Russia RA3P · European Russia

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 UB9USV

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: NO33 · 95 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 4,351 km (approx.)
Last such locator decoded: 2026-09-13 18:26 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	UB9USV S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-14 17:45	40m	-16 / -	RX4SA	-11 / -10	2	✓ Closing observed
09-13 18:26	40m	-14 / -	RN3YN	- / -	2	Partial capture
09-10 15:25	40m	- / -15	R4CQ	-13 / -	2	Partial capture
09-08 15:18	40m	-20 / -7	RK2Z	+2 / -5	4	✓ Full exchange observed
09-08 15:00	40m	- / -14	R2GBR	-5 / -	3	Partial capture
09-08 15:00	40m	- / -	R4UA	-4 / -	2	✓ Closing fragment
09-08 14:55	40m	- / +3	UA9LT	-16 / -	2	✓ Closing fragment
09-08 14:53	40m	- / -6	RA4FEA	-6 / -	3	✓ Closing fragment
08-31 10:37	20m	- / -12	LZ1ZF	0 / -	2	✓ Closing fragment
08-30 04:28	20m	-11 / -	UD6AWJ	- / -7	2	✓ Closing fragment
08-30 04:25	20m	-10 / -	R2SBI	- / -6	3	✓ Closing fragment
08-30 04:22	20m	-3 / -	Z62NS	- / -14	3	✓ Closing fragment
08-30 04:21	20m	-14 / -	RU3BL	- / -14	2	✓ Closing fragment
08-30 04:19	20m	-16 / -	RT4A	- / -7	3	✓ Closing fragment
08-26 13:44	20m	0 / -18	UB8CPH	+10 / -2	6	✓ Full exchange observed
08-26 11:47	20m	-19 / -	K2TQC	-15 / -11	6	✓ Closing observed
08-23 11:18	20m	- / -15	UA6YEX	0 / -	2	✓ Closing fragment
08-22 03:42	20m	-6 / -6	UN0GY	-4 / -9	5	✓ Full exchange observed
08-17 09:52	20m	- / -1	R2ZDO	-10 / -	2	✓ Closing fragment
08-17 05:38	20m	- / +1	UA3RBM	-14 / -	2	Partial capture
08-16 08:13	20m	- / -	HB9TIH	-18 / -	3	Partial capture
08-16 08:12	20m	- / -1	RA3P	-8 / -	2	✓ Closing fragment
08-15 15:10	20m	-10 / -	RL6MT	- / -11	3	✓ Closing fragment
08-15 15:08	20m	-22 / -	UB1OBV	- / -4	2	✓ Closing fragment
08-14 10:05	20m	- / +8	R50RKZ	+1 / -	2	✓ Closing fragment
08-10 21:12	40m	- / -11	RZ3EC	-4 / -	2	✓ Closing fragment
08-09 20:14	40m	- / -14	R3QX	-18 / -	2	✓ Closing fragment
08-09 20:07	40m	- / -10	RY3F	-13 / -	2	✓ Closing fragment
08-09 20:00	40m	- / -10	R4ZZ	-8 / -	2	✓ Closing fragment
08-09 19:46	20m	- / -11	RL6MT	-10 / -	2	✓ Closing fragment
08-09 15:12	20m	- / -3	LZ1ZF	-8 / -	2	✓ Closing fragment
08-06 13:41	20m	- / -2	UA6HBJ	-1 / -	3	✓ Closing fragment
08-05 03:26	20m	-18 / -	R5FY	- / -5	3	Partial capture
08-05 02:27	20m	- / -13	UA6NT	-14 / -	2	✓ Closing fragment
08-04 20:06	20m	- / -16	EA5KB	-18 / -	3	Partial capture
08-04 19:52	40m	- / -11	RZ6CO	-16 / -	2	Partial capture
08-04 19:44	20m	- / -25	T77RN	+2 / -	2	Partial capture
08-02 21:40	40m	- / -21	LZ1ZF	-19 / -	2	✓ Closing fragment
08-02 15:46	20m	-16 / -	<...>	- / -	2	Partial capture
08-01 23:10	40m	- / -16	RA3WY	-11 / -	5	✓ Closing fragment
08-01 23:05	40m	- / -	RA3WY	-12 / -	3	Partial capture
08-01 23:03	40m	- / -4	LZ5UY	-14 / -	2	✓ Closing fragment
08-01 11:49	20m	- / -10	RA6MQ	-16 / -	2	✓ Closing fragment
07-31 19:35	20m	-24 / -	UA2FFD	- / -	2	Partial capture
07-31 10:21	20m	- / -	RA4ABH	-10 / -	4	Partial capture
07-30 13:13	20m	- / -19	RA3Y	-6 / -	2	✓ Closing fragment
07-27 22:46	40m	- / -25	EW2ZC	-14 / -	2	✓ Closing fragment
07-27 09:54	20m	- / -23	RA3Y	-6 / -	4	✓ Closing fragment
07-27 09:51	20m	- / -11	LZ1ZF	-13 / -	2	Partial capture
07-20 15:07	20m	-12 / -	RC5F	-4 / -	2	✓ Closing observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
151845 -19 1161  RK2Z UB9USV 73
161445 -17 1861  RC5F UB9USV NO33
161530 -14 1683  YU65AEC UB9USV NO33
161715  -6 1685  UB9USV R1943OD -18
152045 -22 1918  R8AIJ UB9USV 73
152215 -23 2009  UA9ZZ UB9USV NO33
152430  +7 3001  UB9USV R4CBE -24
152500 -14 1237  UB9USV R4CQ -15 (x2)
182615 -13  680  RN3YN UB9USV NO33 (x2)
182815  -6 1242  UB9USV UB1CDJ -09
174530 -16 2032  RX4SA UB9USV R-10
174545 -11 2031  UB9USV RX4SA RR73
174915  -7  442  UB9USV R9DT +02

20m

UTC    dB Audio  Message
041945 -13 1955  RT4A UB9USV R-07 (x2)
042145 -14 1792  RU3BL UB9USV R-14 (x2)
042245  -4  587  Z62NS UB9USV NO33 (x3)
042500 -12 1080  R2SBI UB9USV NO33 (x3)
042815 -10 2045  UD6AWJ UB9USV R-07 (x2)
031100 -18 1100  UA6BQN UB9USV NO33
103745  +2 1091  UB9USV LZ1ZF -12 (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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