US5VAC — 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: KN68

Receiver-side FT8 activity involving US5VAC, decoded by SO8OO in southeastern Poland. 52 FT8 messages attributed to this token as transmitter, on 60m, 40m, 10m, across 12 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-10-17.

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 52 FT8 messages attributed to US5VAC as the transmitting token by decoded message structure across 12 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 10 m (8%) and 60 m (6%). Several six-hour UTC windows tied for the largest share (87%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-8 dB

Estimated median S/N

Bands

60m · 3 40m · 45 10m · 4

First attributed message: 2026-06-09
Last attributed message: 2026-10-17 18:56 UTC

Observed FT8 message patterns

Attributed sample: 52 messages
Active dates: 12 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -13 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 23, strong (≥ -8 dB) 27.

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 US5VAC in decoded directed-looking exchanges:

TA3ZZ · Asiatic Turkey ×2 7Z1DH · Saudi Arabia 7Z1LR · Saudi Arabia EA7R · Spain TT1GD · Chad 4X1UF · Israel EX7CQ · Kyrgyzstan HA1BF · Hungary II5GG · Italy LZ3CB · Bulgaria N8HRZ · United States OE1AES · Austria

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 US5VAC

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 · 17 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 829 km (approx.)
Last such locator decoded: 2026-10-04 17:56 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	US5VAC S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-18 13:20	10m	- / -17	DN9JGL	-20 / -	3	Partial capture
10-18 11:03	10m	- / -6	EA7R	+11 / -	2	✓ Closing fragment
10-18 10:53	10m	- / -11	EA7R	+6 / -	2	Partial capture
10-18 10:44	10m	- / +4	EA7R	+6 / -	3	Partial capture
10-17 18:53	40m	-5 / -	UT3UEH	- / -6	3	✓ Closing fragment
10-17 18:39	40m	-4 / -	US8KA	-5 / -	3	✓ Closing observed
10-17 18:35	40m	- / -11	OE1AES	-10 / -	2	✓ Closing fragment
10-16 10:55	10m	- / -18	EA5/PU2LSI	-16 / -	2	Partial capture
10-16 10:36	10m	- / -4	EA3AYK	-16 / -	2	Partial capture
10-15 04:14	40m	-10 / -11	N8HRZ	-16 / -20	4	✓ Full exchange observed
10-14 04:53	40m	- / -	YO3GNF	-2 / -	3	Partial capture
10-14 04:43	40m	- / -6	F5UOU	-2 / -	2	Partial capture
10-14 04:43	40m	-8 / +1	SV2AOB	-9 / -8	6	✓ Full exchange observed
10-14 04:41	40m	- / -	EA3IZF	-14 / -	4	Partial capture
10-10 15:12	10m	- / -3	CT7AIU	-19 / -	3	Partial capture
10-10 14:12	10m	- / 0	TT1GD	-8 / -	2	✓ Closing fragment
10-04 17:53	40m	-14 / -2	EX7CQ	-12 / 0	4	✓ Full exchange observed
10-02 18:18	40m	-14 / -9	HA1BF	+4 / +2	4	✓ Full exchange observed
10-01 18:03	40m	-13 / -15	II5GG	-4 / -15	6	✓ Full exchange observed
09-29 18:35	40m	-9 / -4	4X1UF	-14 / -	3	✓ Closing observed
09-29 18:33	40m	-9 / +3	TA3NK	-16 / -3	4	✓ Full exchange observed
09-29 18:32	40m	- / -	UR4QWW	-11 / -	12	Partial capture
09-29 18:30	40m	- / -	F1IQH	-10 / -	3	Partial capture
09-29 18:28	40m	-7 / -	TA4SSK	- / -16	2	Partial capture
09-29 18:25	40m	- / -	DL1UDO	0 / -	3	Partial capture
09-29 18:25	40m	-6 / +3	LZ3CB	+16 / -	6	✓ Full exchange observed
09-26 10:55	10m	- / -3	7Z1LR	-18 / -	2	✓ Closing fragment
09-15 18:22	40m	- / -	DK8HC	-8 / -	3	Partial capture
09-14 18:24	60m	- / -	LY3W	+9 / -	2	Partial capture
09-14 18:23	60m	-8 / -9	OI7AX	+4 / -1	5	✓ Full exchange observed
09-14 18:20	40m	-8 / -	DJ0MAB	0 / -19	2	Partial capture
09-14 18:11	40m	-12 / -	LZ3HG	- / -4	3	Partial capture
09-14 17:54	40m	- / -19	M0BEW	+8 / -	2	Partial capture
09-14 17:48	40m	+3 / -	YU65AEC	- / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

10m

UTC    dB Audio  Message
103645 -18 1120  US5VAC EA3AYK R-04
105545 -15 2341  US5VAC EA5/PU2LSI R-18 (x2)
104400  -2  638  US5VAC EA7R R+04 (x7)
111900 -13 2493  US5VAC CR7BUW IM58
132015 -18 1593  US5VAC DN9JGL R-17 (x3)
143830 -17 1080  US5VAC CS8ABF R-13

40m

UTC    dB Audio  Message
041415 -16  562  US5VAC N8HRZ R-11 (x2)
041600 -14  560  N8HRZ US5VAC RR73
042530 -13 1426  K4YT US5VAC -17
183515  -8 1439  US5VAC OE1AES R-11 (x2)
183930  -5  477  US8KA US5VAC +15 (x2)
184015  -5  477  US5VAC US8KA 73
184530  -9 2104  IQ4JO US5VAC -10
185330  -8  474  UT3UEH US5VAC -06
185430 -11 2050  TF3VS US5VAC -14
185530  -1  474  UT3UEH US5VAC RR73 (x2)
185900 -14 1636  US5VAC RR73; SQ1EG <...> +10

60m

UTC    dB Audio  Message
182330  -9 2392  OI7AX US5VAC KN68
182345  +4 2392  US5VAC OI7AX -09
182400  -6 2392  OI7AX US5VAC R-01
182415  +5 2392  US5VAC OI7AX RR73
182430  -8 2392  OI7AX US5VAC 73
182445 +11  832  US5VAC LY3W KO14
182515  +6  359  US5VAC S52DD JN75
182515  +7  832  US5VAC LY3W KO14

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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