UT4VL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KN58

Receiver-side FT8 activity involving UT4VL, decoded by SO8OO in southeastern Poland. 2,720 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 80 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-03.

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 2,720 FT8 messages attributed to UT4VL as the transmitting token by decoded message structure across 80 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 20 m (40%) and 10 m (2%). Most decodes (50%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

2,720

Messages attributed

UTC dates decoded

396

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 43 40m · 1,542 20m · 1,089 10m · 46

First attributed message: 2026-06-06
Last attributed message: 2026-10-03 07:16 UTC

Observed FT8 message patterns

Attributed sample: 2,720 messages
Active dates: 80 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -1.1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 651, moderate (-15 to -9 dB) 1,132, strong (≥ -8 dB) 937.

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 UT4VL in decoded directed-looking exchanges:

IK4LZH · Italy ×3 F1IQH · France ×3 GJ0KYZ · Jersey ×2 IU0NAD · Italy ×2 TF4M · Iceland ×2 DK6WS · Fed. Rep. of Germany ×2 EK1KE · Armenia ×2 OZ1HPS · Denmark ×2 SH5RJX · Sweden ×2 SQ5WBW/P · Poland ×2 DF4TC · Fed. Rep. of Germany ES2AJ · Estonia

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 UT4VL

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: KN58 · 1,068 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 687 km (approx.)
Last such locator decoded: 2026-09-28 18:48 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	UT4VL S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-03 07:16	40m	-4 / -13	HG5OGI	-4 / -16	4	✓ Full exchange observed
10-03 07:00	40m	-14 / -12	HA1BF	+2 / -4	6	✓ Full exchange observed
10-03 06:57	40m	-12 / -	SV3AUW	- / -15	2	✓ Closing fragment
10-03 05:51	40m	-11 / +1	GJ0KYZ	-12 / -18	5	✓ Full exchange observed
10-03 05:50	40m	-10 / -10	DK6WS	-13 / -13	3	✓ Full exchange observed
10-03 04:23	40m	-18 / -9	LZ1DPP	-12 / -8	2	Partial capture
10-03 04:12	40m	- / -11	OH6IH	-9 / -	2	✓ Closing fragment
10-03 02:43	40m	- / +4	G3TKT	-9 / -	5	✓ Closing fragment
10-03 02:35	40m	- / -5	LZ2PAJ	-6 / -	2	✓ Closing fragment
09-28 18:45	40m	- / -	IV3VFP	0 / -	3	Partial capture
09-28 18:45	40m	- / -	PE1EZC	-12 / -	2	Partial capture
09-28 16:49	40m	- / -	DL2GP	-15 / -	2	Partial capture
09-28 16:44	40m	- / -10	F1PBZ	-9 / -	2	Partial capture
09-10 04:24	40m	-12 / -	OE4BHF	- / -6	4	✓ Closing fragment
09-10 04:22	40m	- / -8	HB9EFK	-10 / -	2	✓ Closing fragment
09-10 04:19	40m	-13 / +2	YO6LM	-4 / +4	4	✓ Full exchange observed
09-10 04:17	40m	-4 / 0	SV2JAO	-9 / +2	5	✓ Full exchange observed
09-10 04:15	40m	-10 / -	LA8ENA	-19 / +1	4	✓ Closing observed
09-10 04:12	40m	-11 / -6	SM7TZK	-18 / -	4	Partial capture
09-10 00:10	40m	- / -9	2E0MRK	-11 / -	3	✓ Closing fragment
09-10 00:08	40m	- / -14	N1TQP	-10 / -	3	✓ Closing fragment
09-10 00:06	40m	- / -13	CR7BRV	-4 / -	2	✓ Closing fragment
09-10 00:04	40m	- / -15	W4PSK	0 / -	2	Partial capture
09-09 23:59	40m	- / -11	W4PSK	0 / -	2	✓ Closing fragment
09-09 23:56	40m	- / -14	VO1AW	-22 / -	2	✓ Closing fragment
09-09 23:53	40m	- / -13	WA8CAC	-10 / -	3	✓ Closing fragment
09-09 23:51	40m	- / -16	UK8OM	+3 / -	2	✓ Closing fragment
09-09 19:20	40m	-4 / -17	DL2VN	-2 / -	2	✓ Closing observed
09-09 19:18	40m	-6 / -	ON5VKE	- / -20	3	Partial capture
09-07 02:02	40m	-20 / -19	KP4MAQ	-18 / -	2	Partial capture
09-07 01:59	40m	- / -9	RC9WC	+2 / -	3	Partial capture
09-07 01:59	40m	-16 / -	N1KV	-13 / -7	2	✓ Closing observed
09-06 16:27	40m	+8 / -	OZ7SKB/P	- / +2	2	Partial capture
09-06 16:26	40m	-3 / -	SN1A	- / -7	2	Partial capture
09-06 16:24	40m	+5 / -	EA3HMM	- / -9	2	Partial capture
09-06 03:36	40m	-1 / -	VA3VF	- / -7	6	Partial capture
09-06 03:29	40m	- / -19	IU0TYC	-4 / -	2	✓ Closing fragment
09-06 02:59	40m	- / -8	SV1EAG	-6 / -	2	✓ Closing fragment
09-05 12:33	40m	-4 / -	UR5WBO	- / -15	2	✓ Closing fragment
09-05 12:31	40m	-4 / -	SQ8V	- / -19	2	Partial capture
09-04 20:36	40m	+6 / -	MW0UPH	- / -24	2	Partial capture
09-04 20:34	40m	-2 / -	JR1EMO	- / -14	2	Partial capture
09-04 17:39	40m	-1 / -4	EK1KE	-11 / -2	4	✓ Full exchange observed
09-04 17:33	40m	-3 / -	EA3CK	- / -18	2	Partial capture
09-04 17:19	40m	-3 / -	PA4WIM	- / -17	3	Partial capture
09-04 17:15	40m	-2 / -	DJ0MAB	- / -13	2	Partial capture
09-04 17:13	40m	-3 / -13	SY1BKQ	-6 / -	3	✓ Closing observed
09-04 17:02	40m	+4 / +8	SP2SGZ	-1 / -14	3	Partial capture
09-04 10:22	40m	-12 / -	DC2SF/P	- / -15	2	Partial capture
09-02 04:16	40m	- / -13	RC9WC	-16 / -	2	Partial capture

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
055200 -10 1743  GJ0KYZ UT4VL R-24 (x2)
065730 -15 2172  SV3AUW UT4VL -15 (x2)
070045 -13 1401  HA1BF UT4VL -04
070100  +3 1401  UT4VL HA1BF R-12 (x3)
070215 -16 1401  HA1BF UT4VL RR73
070230  +1 1401  UT4VL HA1BF 73
071145 -12 1524  HA1ZW UT4VL -16
071615  -4  707  HG5OGI UT4VL -16
071630  -6  707  UT4VL HG5OGI R-13
071645  -4  707  HG5OGI UT4VL RR73
071700  -2  707  UT4VL HG5OGI 73

20m

UTC    dB Audio  Message
063715 -10 1028  OD5ZZ UT4VL R+00 (x2)
063815  -5  516  EA8WU UT4VL KN58 (x3)
064000 -11  419  UT4VL EA8WU RR73
064015  +2  419  EA8WU UT4VL 73
064045  +0  615  M7MJW UT4VL -21 (x3)
195145  +7 1884  UT4VL AO5FSB R-15 (x2)
190000  +5  606  UT4VL CT2FXY IM59 (x3)

10m

UTC    dB Audio  Message
065300  +0 2260  UT4VL RN6MA -01 (x2)
093330  -1 2536  UT4VL F1PBZ -10 (x2)
144915  -6  488  UT4VL IK4LZH JN54 (x2)
141915  -8 1781  UT4VL EA8UP R-05 (x2)
133030 -19 2400  UT4VL ES2AJ 73
122030 -14  775  UT4VL SV2CLJ R+02 (x2)
072800 -17 1447  UT4VL M0MDS R-25 (x2)
172545 -20 1292  UT4VL CT3MD IM13 (x2)

80m

UTC    dB Audio  Message
191045 -24 1472  SP9CXN UT4VL -19 (x3)
194300 +15 1202  UT4VL SQ8AZT R-14
194315 -18 1203  SQ8AZT UT4VL RR73
194330 +14 1202  UT4VL SQ8AZT 73
175530  +7 1740  UT4VL <...> R-25
215815  -3 1802  UT4VL DO1TOM -22
204615  +5 1225  UT4VL UA4FKT LO23 (x2)
205045  +1 1194  UT4VL OH1CIN R-25 (x2)
185215 -23 1907  SV2JAO UT4VL -21 (x2)
020215 -24 1364  <...> UT4VL -08

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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