US1VS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KN68

Receiver-side FT8 activity involving US1VS, decoded by SO8OO in southeastern Poland. 1,119 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-31.

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 1,119 FT8 messages attributed to US1VS as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (38%), followed by 80 m (31%) and 20 m (29%). Most decodes (72%) fell within the six-hour window 15:00-21:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7 dB.

Overview

1,119

Messages attributed

UTC dates decoded

125

Active 15-min windows

-7 dB

Estimated median S/N

Bands

80m · 349 40m · 426 20m · 325 10m · 19

First attributed message: 2026-06-07
Last attributed message: 2026-08-31 20:19 UTC

Observed FT8 message patterns

Attributed sample: 1,119 messages
Active dates: 38 UTC dates
Estimated median S/N: -7 dB
Estimated 10th-90th percentile: -17 to +5 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 144, moderate (-15 to -9 dB) 337, strong (≥ -8 dB) 638.

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 US1VS in decoded directed-looking exchanges:

SN4WWA · Poland ×3 IK4LZH · Italy ×3 IU4PPL · Italy ×2 LZ1ZF · Bulgaria ×2 TM8WWA · France ×2 UR5RBP · Ukraine ×2 II3WWA · Italy ×2 II7WWA · Italy ×2 SN3WWA · Poland ×2 UR5ZHJ · Ukraine ×2 EG4WWA · Spain F4FSY · France

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 US1VS

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: KN68 · 660 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 829 km (approx.)
Last such locator decoded: 2026-08-31 20:19 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	US1VS S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-31 20:20	40m	- / -	IN3IZQ	-10 / -	4	Partial capture
08-31 20:19	40m	-3 / -	G8KHF	- / -	2	Partial capture
08-31 20:09	40m	-3 / -	YC2BUZ	- / -18	3	Partial capture
08-31 20:05	40m	-4 / -2	DF8RU	+9 / +2	6	✓ Full exchange observed
08-31 19:59	40m	+4 / -7	OE3PBS	+2 / +2	5	✓ Full exchange observed
08-31 19:56	40m	+3 / -12	PG4T	+9 / -7	7	✓ Full exchange observed
08-31 19:50	40m	+4 / -	PG4T	- / -	2	Partial capture
08-31 19:46	40m	- / -1	IA5/OE9DGV	-11 / -	2	Partial capture
08-31 19:15	20m	- / -12	EA1CQ	0 / -	3	✓ Closing fragment
08-29 04:33	20m	+2 / -	<...>	- / -	2	Partial capture
08-28 21:00	20m	-15 / -	EP2AES	- / -	3	Partial capture
08-28 20:59	20m	-12 / -	JA2HGF	- / -11	2	✓ Closing fragment
08-28 20:57	20m	-13 / -	JH1XXB	- / -19	3	✓ Closing fragment
08-28 20:40	20m	- / -	DL9KM	-1 / -	7	Partial capture
08-19 21:38	40m	-9 / -22	UR5ZHJ	-13 / -12	3	✓ Full exchange observed
08-17 18:25	20m	-12 / -	UR5YPV	-8 / -5	5	✓ Closing observed
08-17 18:19	20m	-18 / -	<...>	- / -14	2	Partial capture
08-15 19:23	80m	-2 / -	OH3NDH	+7 / 0	4	Partial capture
08-15 19:20	80m	-2 / -	US1VAA	+17 / +1	5	✓ Full exchange observed
08-15 19:18	80m	- / -10	R3BB	-8 / -	3	Partial capture
08-15 19:13	80m	+6 / 0	UT7UA	+1 / 0	5	✓ Full exchange observed
08-15 19:11	80m	+7 / -17	DA1VID	-9 / -15	5	✓ Full exchange observed
08-15 19:10	80m	+4 / -	EB5RCA	- / -19	2	✓ Closing fragment
08-15 19:06	80m	0 / -	EN35UKR	- / -14	2	Partial capture
08-15 19:03	80m	+6 / +5	OH2BVT	+2 / -7	4	✓ Full exchange observed
08-15 19:01	80m	+2 / -5	SP2DRP	-5 / -15	4	✓ Full exchange observed
08-11 04:22	20m	- / +8	RN6MA	-10 / -	3	Partial capture
08-08 18:53	10m	- / +6	EA7Z	+10 / -	2	Partial capture
08-04 08:57	20m	-4 / -	EA3AAY	- / -18	2	✓ Closing fragment
08-04 08:55	20m	-2 / -1	R4FDD	-1 / 0	8	Partial capture
08-04 08:46	20m	-4 / -	<...>	- / -22	4	Partial capture
07-30 17:43	20m	-10 / -	BG5GFU	- / -18	3	✓ Closing fragment
07-30 07:23	20m	-7 / -	EX7CQ	- / -4	2	Partial capture
07-30 07:16	20m	-8 / -	OH6IH	- / -19	2	Partial capture
07-30 07:13	20m	+1 / -	ON3CCM	- / -13	2	✓ Closing fragment
07-30 07:05	20m	-6 / -	KB3Z	- / -11	2	✓ Closing fragment
07-30 07:01	20m	- / +4	RN6MA	-11 / -	2	Partial capture
07-30 06:57	20m	0 / -	YU4RBL	- / -20	2	✓ Closing fragment
07-30 06:51	20m	-3 / -	DL1R	-5 / -22	11	Partial capture
07-30 06:48	20m	-8 / -	MM7CEH	- / -21	2	✓ Closing fragment
07-30 06:48	20m	- / -	RN6MA	-2 / -	4	Partial capture
07-30 06:40	20m	-6 / -	SP9DAT	- / -15	2	✓ Closing fragment
07-30 06:39	20m	-2 / -	DK0BO	- / -20	2	✓ Closing fragment
07-30 06:39	20m	- / +7	RN6MA	-9 / -	3	Partial capture
07-30 05:48	20m	- / -18	RN6MA	+10 / -	4	Partial capture
07-30 05:48	20m	- / -	RX3ASQ	-18 / -	2	Partial capture
07-30 05:46	20m	-3 / -	OV9D	- / -4	3	✓ Closing fragment
07-30 05:41	20m	0 / -10	PD3LKN	-6 / -10	4	✓ Full exchange observed
07-29 21:39	80m	0 / -19	ON3BEN	-7 / -19	4	✓ Full exchange observed
07-29 21:35	80m	+9 / -	DO8JB	-4 / -18	9	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
200715  +7  949  US1VS DF8RU 73
200800  -4  946  CQ US1VS KN68
200930  -1  946  YC2BUZ US1VS -18 (x3)
201545 -14 1179  US1VS RX3ASQ KO95
201700  +0  946  CQ US1VS KN68 (x3)
201915  -4  945  G8KHF US1VS KN68 (x2)
202045  -7  946  US1VS IN3IZQ JN56 (x4)

20m

UTC    dB Audio  Message
043715  +7 2636  CQ US1VS KN68 (x10)
191315 -11 2907  VE1WT US1VS KN68
191500 -12 1953  CQ US1VS KN68
191545  -2 1952  US1VS EA1CQ IN83 (x3)

80m

UTC    dB Audio  Message
192045  +1  431  US1VAA US1VS KN68
192100 +17 2803  US1VS US1VAA +12
192115  -2  430  US1VAA US1VS R+01
192130 +17 2803  US1VS US1VAA RR73
192145  -4  431  US1VAA US1VS 73
192215  -5  430  CQ US1VS KN68 (x2)
192300  +4 2705  US1VS R3BDQ -06
192315  -2  430  CQ US1VS KN68
192330  +7 1805  US1VS OH3NDH KP20
192345  +0  430  OH3NDH US1VS +00 (x2)
192445  -1  430  CQ US1VS KN68
192530  +0  430  OH3NDH US1VS KN68
192700  +0  430  CQ US1VS KN68

10m

UTC    dB Audio  Message
144900 -16 1172  US1VS UX4LX -01 (x2)
145330 -20 1392  US1VS RK3AW +00
145430 -11 2375  US1VS UA4FKT LO23
145600  +1  514  US1VS RN3DN KO84
185145  +1 2733  US1VS F1PBZ -08
185345 +10  503  US1VS EA7Z IM67 (x2)
190315  -7  501  US1VS IK1HSO R+02
191115 -16 1969  US1VS SV1DZB 73
195100 -20 1916  EA8BQU US1VS -19
195200 -11 1917  CQ US1VS KN68 (x3)
195330 -23 1917  OH3HE US1VS -21

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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