UA4WCS — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: European Russia Most frequent locator attributed to this token: LO66

Receiver-side FT8 activity involving UA4WCS, decoded by SO8OO in southeastern Poland. 806 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 38 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-08.

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 806 FT8 messages attributed to UA4WCS as the transmitting token by decoded message structure across 38 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (45%), followed by 40 m (35%) and 80 m (20%). Most decodes (60%) 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 -8 dB.

Overview

806

Messages attributed

UTC dates decoded

145

Active 15-min windows

-8 dB

Estimated median S/N

Bands

80m · 161 40m · 279 20m · 366

First attributed message: 2026-06-10
Last attributed message: 2026-09-08 04:22 UTC

Observed FT8 message patterns

Attributed sample: 806 messages
Active dates: 38 UTC dates
Estimated median S/N: -8 dB
Estimated 10th-90th percentile: -18 to +2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 133, moderate (-15 to -9 dB) 243, strong (≥ -8 dB) 430.

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 UA4WCS in decoded directed-looking exchanges:

IZ0AEZ · Italy ×2 DL7ARV · Fed. Rep. of Germany ×2 RA2FU · Kaliningrad ×2 DO9BAU · Fed. Rep. of Germany ×2 RJ3T · European Russia ×2 R2AKN · European Russia ×2 UI6A · European Russia ×2 UA9ZZ · Asiatic Russia ×2 R3LDM · European Russia ×2 R7CD · European Russia ×2 R5GG · European Russia ×2 R6OG · European Russia

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 UA4WCS

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: LO66 · 386 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 2,180 km (approx.)
Last such locator decoded: 2026-09-08 04:20 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	UA4WCS S/N	Counterpart	Counterpart S/N	Msgs	Capture
09-08 04:20	40m	-17 / -	SQ100PKP	- / -13	4	Partial capture
09-04 17:51	80m	-6 / -7	R1943OD	+15 / -11	5	Partial capture
09-04 16:26	40m	-11 / -4	R7DX	-7 / -	6	Partial capture
09-04 16:23	40m	-5 / +1	R1943OD	+1 / +8	6	Partial capture
09-04 02:43	40m	-18 / -	KK7UXY	- / -	2	Partial capture
09-04 02:37	40m	-14 / -	KK7UXY	- / -	2	Partial capture
09-04 02:30	40m	-9 / -	3Z100PKP	- / -9	3	Partial capture
09-04 02:23	40m	+2 / -	TN8GD	- / +9	4	✓ Closing fragment
09-04 02:20	40m	-16 / -	LW5DR	- / -	4	Partial capture
09-04 02:16	40m	-15 / -	CE7GFN	- / -	4	Partial capture
09-02 17:35	40m	- / -	UA3ON	-9 / -	3	Partial capture
09-02 17:33	40m	-10 / -	II7MGBR	- / -	3	Partial capture
09-02 17:09	40m	- / -13	SP6FME	-5 / -	5	✓ Closing fragment
09-02 16:57	40m	-4 / -	R8AIJ	- / -14	2	✓ Closing fragment
09-02 16:51	40m	-14 / -11	IR7MGGC	-10 / -25	8	Partial capture
09-02 16:44	40m	-6 / -	RI1FJL	- / -8	4	Partial capture
09-02 04:35	40m	- / +5	RA6LTD	-13 / -	3	Partial capture
09-02 04:35	40m	- / -10	II7MGBT	-3 / -	3	Partial capture
09-02 01:42	40m	-22 / -	XQ3SK	- / -	4	Partial capture
09-01 17:53	40m	-9 / -	JT1DN	- / -24	4	✓ Closing fragment
09-01 17:22	40m	-10 / -5	<...>	-6 / -10	5	Partial capture
09-01 17:07	40m	-6 / -	BD4VOJ	- / -17	4	Partial capture
09-01 17:05	40m	-11 / -	R2HB	-8 / -1	3	✓ Closing observed
09-01 17:03	40m	-6 / -	SO100PKP	-12 / -16	4	✓ Closing observed
09-01 16:50	40m	-8 / -4	IR7MGGC	-12 / -17	16	Partial capture
09-01 16:49	40m	-8 / -	R9CP	- / -	2	Partial capture
09-01 16:40	40m	0 / -	RI1FJL	- / -10	6	Partial capture
09-01 05:44	40m	- / -13	LZ936BA	-3 / -	2	Partial capture
08-31 02:15	40m	-12 / -	PY2DPM	- / -4	4	✓ Closing fragment
08-31 02:13	40m	-10 / -	SQ9CXH	- / -10	2	Partial capture
08-31 02:11	40m	-11 / -	CA6SNT	- / -14	3	✓ Closing fragment
08-31 02:10	40m	-2 / -	TT1GD	- / 0	3	✓ Closing fragment
08-31 02:04	40m	-3 / -	PY1USK	- / -9	4	✓ Closing fragment
08-29 10:03	20m	-4 / -	RI1FJL	- / -	4	Partial capture
08-27 16:52	40m	-11 / -10	II7MGBR	-6 / -	2	Partial capture
08-27 16:43	40m	-8 / -9	RC6OX	-12 / -5	6	✓ Full exchange observed
08-27 16:42	40m	-8 / -	RC6OZ	-8 / -10	3	✓ Closing observed
08-27 16:37	40m	-11 / -4	RC1TB	-14 / -3	7	✓ Full exchange observed
08-27 16:13	40m	-5 / -	UA9YHA	- / 0	3	✓ Closing fragment
08-27 16:10	40m	+6 / -	UI0A	- / -	3	✓ Closing fragment
08-27 16:06	40m	-11 / -	R9VA	-18 / +3	7	✓ Closing observed
08-27 16:03	40m	-9 / -	UA9ZZ	- / -3	3	✓ Closing fragment
08-27 15:51	40m	-20 / -	R1ZH	- / -	2	✓ Closing fragment
08-27 15:49	40m	-7 / -	3D2USU	- / -14	3	✓ Closing fragment
08-27 15:44	40m	-18 / -	R0ADN	- / +2	3	✓ Closing fragment
08-27 15:44	40m	-16 / -9	UB3PAQ	-18 / -3	5	✓ Full exchange observed
08-27 15:42	40m	-15 / -6	R5GG	-22 / +9	2	Partial capture
08-27 15:41	40m	-11 / -	R0ADN	- / -	2	Partial capture
08-27 15:38	40m	-12 / -3	RD9T	-10 / -	4	✓ Closing observed
08-26 14:22	40m	-6 / +9	R3WDW/P	+2 / +5	4	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
162415  -2 2545  R1943OD UA4WCS R+08
162430  +0 2538  UA4WCS R1943OD +01
162445  -3 2537  R1943OD UA4WCS R+07
162615  -9 1603  R7DX UA4WCS LO66 (x4)
162800  -7 1603  UA4WCS R7DX -04
162815 -13 1603  R7DX UA4WCS R+13
062415 -11 1535  UA4WCS R6OBN -10
062800 -11  912  UA4WCS EW7BBI RR73
042000 -19 1327  SQ100PKP UA4WCS LO66 (x4)

80m

UTC    dB Audio  Message
204915 -10 1495  RA6FYL UA4WCS LO66 (x3)
210700  -2 1496  UA4WCS RA6FYL R+00 (x7)
175100  -7 2651  R1943OD UA4WCS LO66 (x3)
175215 +15 2653  UA4WCS R1943OD -07
175230  -9 2653  R1943OD UA4WCS R-11

20m

UTC    dB Audio  Message
152700  +7  906  UA4WCS II7MGXX RR73
152730  +1 1966  UA4WCS UA6HRB R-13
152730  +2  906  UA4WCS II7MGXX RR73
152800  +4 1966  UA4WCS UA6HRB R-13 (x2)
152245  -5 2104  II7MGBT UA4WCS LO66 (x2)
152545  -2 2462  BG5BNW UA4WCS R-16 (x3)
100315  -2  356  RI1FJL UA4WCS LO66 (x4)
101200  +3  924  UA4WCS EA3KK JN01

10m

UTC    dB Audio  Message
083715  -5 2275  UA4WCS UI6A -12
083745  -4  542  UA4WCS RG5A KN93
083745  -6 2276  UA4WCS UI6A RR73
083915 -13  499  UA4WCS EA5AR IM99
083915  -9  542  UA4WCS RG5A KN93
083945 -24 1900  UA4WCS R6AC LN05
084245 -12  499  UA4WCS EA5AR IM99 (x2)
100730 -15 1611  UA4WCS RW6HP LN14 (x3)
110315 -16 1960  UA4WCS A61FJ RR73
112215  +3 2740  UA4WCS RZ6L KN97 (x3)

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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