UG4I — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO43

Receiver-side FT8 activity involving UG4I, decoded by SO8OO in southeastern Poland. 763 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 33 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-30.

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 763 FT8 messages attributed to UG4I as the transmitting token by decoded message structure across 33 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (36%), followed by 40 m (34%) and 20 m (19%). Most decodes (70%) 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 -9 dB.

Overview

763

Messages attributed

UTC dates decoded

148

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 38 80m · 278 40m · 257 20m · 143 10m · 47

First attributed message: 2026-06-07
Last attributed message: 2026-08-30 17:56 UTC

Observed FT8 message patterns

Attributed sample: 763 messages
Active dates: 33 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -18 to +1 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 130, moderate (-15 to -9 dB) 265, strong (≥ -8 dB) 368.

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 UG4I in decoded directed-looking exchanges:

RK6OV · European Russia ×3 DL9KM · Fed. Rep. of Germany ×2 R7DX · European Russia ×2 RA6YDX · European Russia ×2 RV9FF · European Russia ×2 RA6FSV · European Russia ×2 R3YAU · European Russia ×2 R6YG · European Russia ×2 R9FE · European Russia ×2 RU6FS · European Russia ×2 UA3SCU · European Russia ×2 IZ0EUX · Italy

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 UG4I

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: LO43 · 315 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,903 km (approx.)
Last such locator decoded: 2026-08-30 17:55 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	UG4I S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-30 17:54	160m	-16 / -	RK6C	-18 / -9	5	✓ Closing observed
08-30 17:53	160m	-14 / -	R8KAN	- / -21	2	Partial capture
08-30 17:46	160m	-24 / -	RZ6LY	+5 / +6	2	✓ Closing observed
08-30 17:43	160m	- / -	EW8CW	-10 / -	7	Partial capture
08-30 17:41	160m	- / -6	RY3D	-13 / -	3	✓ Closing fragment
08-30 17:40	160m	- / -4	UA4PPQ	-10 / -	2	✓ Closing fragment
08-30 15:46	40m	- / -16	RW6ATD	+7 / -	2	Partial capture
08-30 15:42	40m	-5 / -4	RA2FGK	-14 / -13	11	✓ Full exchange observed
08-30 15:33	40m	-6 / -	R2UZ/P	- / +2	8	Partial capture
08-30 15:26	40m	-7 / +7	RA3PDL	-7 / +6	3	✓ Full exchange observed
08-28 20:13	80m	- / -8	RA3M	-6 / -	3	Partial capture
08-28 20:10	80m	- / -20	DK7UY	-4 / -	5	✓ Closing fragment
08-28 20:10	80m	- / -5	DL6UM	-4 / -	10	✓ Closing fragment
08-28 20:09	80m	- / -	OE9GWV	-12 / -	4	Partial capture
08-28 20:06	80m	- / -16	DK7ZT	0 / -	2	Partial capture
08-28 20:04	80m	- / -	SV1DKR	-12 / -	2	Partial capture
08-28 20:03	80m	- / -5	R9FFJ	-18 / -	3	Partial capture
08-28 20:02	80m	- / -	R6OU	-4 / -	2	Partial capture
08-28 20:02	80m	-13 / -11	PA3FPQ	-6 / -13	5	✓ Full exchange observed
08-28 19:30	160m	- / -	IZ0COC	-1 / -	5	Partial capture
08-28 19:25	160m	- / -13	R2SN	-15 / -	3	✓ Closing fragment
08-28 19:25	160m	- / 0	RA3WY	-4 / -	5	Partial capture
08-28 19:23	160m	-19 / -14	R7DX	+4 / -4	4	✓ Full exchange observed
08-28 19:23	160m	-20 / -1	UA1OMS	-10 / -2	4	✓ Full exchange observed
08-28 19:18	40m	-3 / -4	UA6B	+2 / -	4	✓ Closing observed
08-28 19:16	40m	-4 / +4	R7ZY	+9 / +1	6	✓ Full exchange observed
08-28 19:13	40m	-3 / +1	R6OU	0 / -	4	✓ Full exchange observed
08-28 17:39	40m	-14 / +5	R4FBT	-2 / -	4	✓ Closing observed
08-28 17:13	40m	- / 0	UA3QNA	+15 / -	3	✓ Closing fragment
08-28 17:09	80m	-14 / -	RA8AM	-24 / -6	3	✓ Closing observed
08-28 17:07	80m	-14 / -3	R9JBZ	-14 / -6	7	✓ Full exchange observed
08-28 17:06	80m	-13 / -	R8CKD	-23 / -	2	✓ Closing observed
08-28 17:06	80m	-13 / -4	RQ3M	-5 / -2	7	✓ Full exchange observed
08-28 17:04	80m	-12 / -9	RN7T	+10 / -	5	✓ Closing observed
08-28 17:03	80m	-12 / -	R6OU	- / -	3	Partial capture
08-28 17:03	80m	- / -	R9JBZ	-11 / -	3	Partial capture
08-28 17:00	80m	-13 / -3	RA4FHO	+9 / +6	9	✓ Full exchange observed
08-28 16:59	80m	- / -3	YO4NT	+2 / -	2	Partial capture
08-28 16:56	80m	-12 / +3	UB8QBL	-21 / -	3	✓ Closing observed
08-28 16:55	80m	-10 / -2	RV6FN	0 / -	9	✓ Closing observed
08-28 16:53	80m	- / -15	R3PJ	-5 / -	6	Partial capture
08-28 16:53	80m	- / +1	UN7CL	-11 / -	2	Partial capture
08-28 16:52	80m	- / -1	R2AL	+5 / -	4	✓ Closing fragment
08-28 16:52	80m	- / -4	R9DZ	-10 / -	4	✓ Closing fragment
08-28 16:49	80m	- / -	R2AL	+6 / -	2	Partial capture
08-28 16:48	80m	- / +5	RU6FS	+1 / -	2	✓ Closing fragment
08-28 16:31	40m	-7 / -	RU6FS	- / +1	3	✓ Closing fragment
08-28 16:29	40m	-4 / -	RA4CGX	-6 / -	3	✓ Closing observed
08-28 16:29	40m	-6 / -11	RW4HUD	-17 / +2	5	✓ Full exchange observed
08-28 16:28	40m	-7 / -2	R3KIA	-13 / +2	3	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

160m

UTC    dB Audio  Message
174445 -20 2182  UG4I EW8CW KO52 (x2)
174600 -24 1364  RZ6LY UG4I R+06
174615  +5 1364  UG4I RZ6LY RR73
174615  -7 2181  UG4I EW8CW KO52 (x3)
175045 -14 1364  R9CS/P UG4I R+21
175345 -13 1364  R8KAN UG4I R-21 (x2)
175445 -15 1364  RK6C UG4I LO43 (x3)
175600 -18 2149  UG4I RK6C RR73
175615 -16 1364  RK6C UG4I 73

40m

UTC    dB Audio  Message
153745  -6 2417  R2UZ/P UG4I R+02
153800 -10 1727  UG4I RR73; RT2P <...> +04
154245  -4 2416  RA2FGK UG4I LO43 (x3)
154400 -11 2414  UG4I RA2FGK -04 (x2)
154445  -4 2415  RA2FGK UG4I LO43
154500 -16 2414  UG4I RA2FGK -04 (x2)
154545  -5 2415  RA2FGK UG4I R-13
154600  +5 2925  UG4I RW6ATD -16
154600 -16 2414  UG4I RA2FGK RR73
154615  -7 2415  RA2FGK UG4I 73
154700  +9 2925  UG4I RW6ATD -08

80m

UTC    dB Audio  Message
201100  +4 2321  UG4I DK2CC JO63
201130 -14 2655  UG4I OE9GWV JN47
201130  -5  796  UG4I DL6UM JO60
201130  -5 1084  UG4I DK7UY R-20
201200  -3  796  UG4I DL6UM R-05
201200  -8 1084  UG4I DK7UY R-20
201230  +0  796  UG4I DL6UM R-05
201300  -7 1972  UG4I RA3M -08
201300  -6  796  UG4I DL6UM JO60
201300  -3 1084  UG4I DK7UY 73
201330  -4 1972  UG4I RA3M -08
201330  -6  796  UG4I DL6UM JO60
201400  -6 1972  UG4I RA3M -08
201400  -6  796  UG4I DL6UM R-11 (x2)

10m

UTC    dB Audio  Message
082745 -16 1853  UG4I RA1AOB 73
082815 -19 1552  UG4I RL1B -14
115630  -8 2130  UG4I R6ZIG R+06
075915  +5 2349  UG4I DL9KM JN68 (x7)
082245 -17 2344  UG4I IZ0EUX RR73
082345 -15  847  UG4I F4BJN JN25 (x2)
073745 -17 1270  UG4I TA1BX -21
180645 -13 1264  UG4I EA9RY -16

20m

UTC    dB Audio  Message
133445  -3 2778  <RL6F/M> UG4I LO43
133545  -3 2778  <...> UG4I R+01
172615 -19 1557  OX3LX UG4I LO43 (x2)
175245 -15 1121  T77RN UG4I LO43 (x2)
185200  -4 1273  TA1CCM UG4I LO43 (x3)
185345 -13 1613  UG4I M1WLK IO82
185400  -1 1097  TA1CCM UG4I LO43
185415 -19 1613  UG4I M1WLK IO82
185430  -2 1097  TA1CCM UG4I R-04
185600  -6 1097  EA3HMM UG4I +02 (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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