UB3KGW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO01

Receiver-side FT8 activity involving UB3KGW, decoded by SO8OO in southeastern Poland. 1,454 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 47 UTC dates in the available aggregate history. Observed between 2026-07-08 and 2026-10-16.

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 1,454 FT8 messages attributed to UB3KGW as the transmitting token by decoded message structure across 47 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (81%), followed by 80 m (12%) and 20 m (5%). Most decodes (56%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.

Overview

1,454

Messages attributed

UTC dates decoded

188

Active 15-min windows

-9 dB

Estimated median S/N

Bands

160m · 2 80m · 169 60m · 36 40m · 1,172 20m · 75

First attributed message: 2026-07-08
Last attributed message: 2026-10-16 21:07 UTC

Observed FT8 message patterns

Attributed sample: 1,454 messages
Active dates: 47 UTC dates
Estimated median S/N: -9 dB
Estimated 10th-90th percentile: -17 to 0 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 213, moderate (-15 to -9 dB) 537, strong (≥ -8 dB) 704.

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 UB3KGW in decoded directed-looking exchanges:

R4IK · European Russia ×3 F1PBZ · France ×3 TA3NK · Asiatic Turkey ×3 UA9SY · Asiatic Russia ×3 R7DX · European Russia ×2 RV6F · European Russia ×2 RT6Z · European Russia ×2 UA4FKT · European Russia ×2 DK7ZT · Fed. Rep. of Germany ×2 EA3HMM · Spain ×2 R6FX · European Russia ×2 R6TA · European Russia ×2

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 UB3KGW

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: LO01 · 940 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,359 km (approx.)
Last such locator decoded: 2026-10-16 21:06 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	UB3KGW S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-16 22:17	40m	- / -	EA2EWL	-12 / -	3	✓ Closing fragment
10-16 21:19	40m	- / -	EA2EWL	-17 / -	5	Partial capture
10-16 21:13	40m	- / -10	DL7ARV	-10 / -	3	Partial capture
10-16 21:06	80m	-14 / -	OZ5AGJ	- / -21	2	Partial capture
10-16 20:47	80m	- / -4	R2EG	-3 / -	3	✓ Closing fragment
10-16 20:28	80m	-19 / -6	R2ASY	+3 / -	4	✓ Closing observed
10-16 00:54	40m	- / -	F3CJ	-16 / -	4	Partial capture
10-15 22:58	40m	- / -14	M7LYG	-11 / -	3	✓ Closing fragment
10-15 22:54	40m	-9 / -	F4BQS	- / -14	2	✓ Closing fragment
10-15 03:51	40m	-10 / -8	DF4WQ	-4 / -	7	✓ Closing observed
10-15 03:51	40m	-10 / -17	RA9SJG	-10 / -2	3	Partial capture
10-14 19:48	40m	- / -19	ON1ACB	-3 / -	4	Partial capture
10-14 04:33	40m	-7 / -10	RU7C	-2 / -8	4	✓ Full exchange observed
10-14 03:09	40m	- / -21	F5NNN	-10 / -	6	✓ Closing fragment
10-10 16:50	40m	- / -	UA3IHJ	-1 / -	3	Partial capture
10-10 16:38	80m	-7 / -14	RN6HK	0 / -10	6	Partial capture
10-10 16:35	80m	- / -	R7CD	-1 / -	3	Partial capture
10-10 16:30	80m	- / -9	R3MBV	-8 / -	4	✓ Closing fragment
10-10 16:28	80m	-14 / -19	YL2GJX	0 / -	7	✓ Closing observed
10-10 16:23	80m	- / -	R3MBV	-2 / -	2	Partial capture
10-10 03:58	40m	- / -5	R7YZ	-16 / -	2	Partial capture
10-10 03:53	80m	-18 / -5	UA3YFL	+3 / -	4	✓ Closing observed
10-10 03:50	80m	- / -17	R1AV	+7 / -	3	✓ Closing fragment
10-10 03:50	80m	- / -10	RM5F	+10 / -	4	✓ Closing fragment
10-10 02:34	80m	-18 / -17	EC3A	+8 / -16	4	✓ Full exchange observed
10-10 02:30	80m	-16 / -22	F4FLF	+1 / -11	4	✓ Full exchange observed
10-09 18:04	40m	- / -	HB9MZI	-12 / -	5	Partial capture
10-09 17:56	40m	- / -2	SP4MPH	-13 / -	2	✓ Closing fragment
10-09 17:47	80m	-8 / -	R6ODC	-20 / -7	2	✓ Closing observed
10-09 17:45	80m	-8 / -9	RC6OU	+2 / +2	4	✓ Full exchange observed
10-09 17:43	80m	-5 / -6	SP9PLK	+18 / -10	3	✓ Full exchange observed
10-09 17:40	80m	-6 / -	RA9FDR	- / -16	2	✓ Closing fragment
10-09 03:29	40m	- / -11	SV1ENG	-1 / -	4	✓ Closing fragment
10-09 01:23	40m	- / -15	EX7CQ	-8 / -	2	Partial capture
10-08 17:07	40m	-14 / -	OV5SP	- / -17	2	Partial capture
10-08 17:01	60m	-6 / -15	DD6ZV	+5 / -18	6	✓ Full exchange observed
10-08 17:01	60m	-16 / -12	GW4FRX	+3 / -	6	✓ Closing observed
10-08 17:01	60m	- / -	ON7KEI	-14 / -	2	Partial capture
10-08 16:27	80m	- / +1	RA3LCI	-3 / -	4	✓ Closing fragment
10-08 16:16	80m	- / -6	RA3LCW	+6 / -	4	✓ Closing fragment
10-08 16:10	80m	-13 / -2	RT6Z	-2 / -4	5	✓ Full exchange observed
10-08 16:05	80m	-12 / -	R4HMI	-14 / -16	2	Partial capture
10-08 16:02	80m	-17 / +9	RD7O	-3 / -	5	✓ Closing observed
10-08 16:00	80m	-14 / -	UA3RBM	-11 / -4	3	✓ Closing observed
10-08 15:59	80m	-12 / 0	R4FES	-7 / -4	3	✓ Full exchange observed
10-08 15:57	80m	- / -	RM9WN	-15 / -	3	Partial capture
10-08 15:55	80m	-18 / -4	RQ7O	-2 / -6	5	✓ Full exchange observed
10-08 15:54	80m	-12 / -	RC7LX	- / -16	2	✓ Closing fragment
10-08 00:31	40m	- / -10	GM6URC	-13 / -	4	Partial capture
10-07 23:28	80m	- / -	9A5E	+7 / -	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
005500 -19 1532  UB3KGW F3CJ JO10 (x3)
211300 -12 2716  UB3KGW DL7ARV JO62 (x3)
211930 -19 1819  UB3KGW EA2EWL IN91 (x8)
064700  -6 2060  UB3KGW SO1CJ JN99

80m

UTC    dB Audio  Message
164015  +0 2566  UB3KGW RN6HK R-14
202830  +3 2453  UB3KGW R2ASY KO85 (x2)
202915 -19 2221  R2ASY UB3KGW RR73
202930  +1 2453  UB3KGW R2ASY 73
204730  -2 2220  UB3KGW R2EG KO82 (x3)
204915 -16 2220  RK4FAJ UB3KGW -09
205330  -1 2217  UB3KGW 9A4ZM JN86
205430  -2 2221  UB3KGW YO3FWL 73
210545 -17 2220  CQ UB3KGW LO01 (x2)
210645 -19 2220  OZ5AGJ UB3KGW -21 (x2)

60m

UTC    dB Audio  Message
170130  -9 2340  CQ UB3KGW LO01
170145 -16 1580  UB3KGW ON7KEI JO21
170145  +2  418  UB3KGW GW4FRX IO82
170145  +0 2339  UB3KGW DD6ZV JO62
170215  +1  418  UB3KGW GW4FRX IO82
170215  +8 2339  UB3KGW DD6ZV JO62
170230  -8 2340  DD6ZV UB3KGW -18
170245 -12 1580  UB3KGW ON7KEI JO21
170245  +8 2339  UB3KGW DD6ZV R-15
170300  -5 2340  DD6ZV UB3KGW RR73
170315  +4 2339  UB3KGW DD6ZV 73
170345  +4  418  UB3KGW GW4FRX IO82 (x2)
170430 -16 2340  GW4FRX UB3KGW RR73
170445  +1  418  UB3KGW GW4FRX 73

160m

UTC    dB Audio  Message
202430  -8 1690  UB3KGW RU3T LO16
202430  +3 2906  UB3KGW RT6Z KN98
202500 -10 1690  UB3KGW RU3T R-16 (x2)
202530 -11  802  UB3KGW R2HB KO85
202600  -6 1691  UB3KGW RU3T R-16 (x2)
202700  +7 2906  UB3KGW RT6Z -16 (x2)
202845 -23 2124  CQ UB3KGW LO01 (x2)
200415  -1  761  UB3KGW R5AV -12
200515 -15 1300  UB3KGW R6FFB LN14 (x2)
200645 -15 2145  UB3KGW R5BM KO85

20m

UTC    dB Audio  Message
033730 -18 1092  WX4DAT UB3KGW -13
132430  -1 1012  CQ UB3KGW LO01                        a1 (x3)
132630  -1 1012  BH4THI UB3KGW LO01
132730  +8 1012  CQ UB3KGW LO01 (x4)
132930  +7 1012  OH2GT UB3KGW -15 (x5)
133230  +6 1012  UA1ZQN UB3KGW -02

10m

UTC    dB Audio  Message
095045 -13 1995  UB3KGW F5ADE JN07 (x2)
095715  -7 1175  UB3KGW DL8WEM JN48
080615 -24 1655  UB3KGW RL1B RR73
082415 -22 1598  UB3KGW RW6HP LN14
093830 -12 1968  UB3KGW R7DX R-24 (x3)
094400 -19 1489  UB3KGW RV6F 73

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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