UA3WDO — 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: European Russia Most frequent locator attributed to this token: KO71

Receiver-side FT8 activity involving UA3WDO, decoded by SO8OO in southeastern Poland. 728 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 34 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-01.

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 728 FT8 messages attributed to UA3WDO as the transmitting token by decoded message structure across 34 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (52%), followed by 20 m (20%) and 80 m (16%). Most decodes (75%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

728

Messages attributed

UTC dates decoded

Active 15-min windows

-11 dB

Estimated median S/N

Bands

80m · 120 40m · 375 20m · 142 10m · 91

First attributed message: 2026-06-07
Last attributed message: 2026-11-01 13:56 UTC

Observed FT8 message patterns

Attributed sample: 728 messages
Active dates: 34 UTC dates
Estimated median S/N: -11 dB
Estimated 10th-90th percentile: -18 to -2 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 155, moderate (-15 to -9 dB) 316, strong (≥ -8 dB) 257.

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 UA3WDO in decoded directed-looking exchanges:

R4FDD · European Russia ×3 PD2WL · Netherlands ×2 RU4I · European Russia ×2 R1BL · European Russia ×2 RJ4H · European Russia ×2 RY2B · European Russia ×2 UB4HPQ · European Russia ×2 DC3LC · Fed. Rep. of Germany DL6RBG · Fed. Rep. of Germany IU2IKT · Italy LZ3CB · Bulgaria RL1B · 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 UA3WDO

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: KO71 · 251 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 945 km (approx.)
Last such locator decoded: 2026-11-01 13:56 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	UA3WDO S/N	Counterpart	Counterpart S/N	Msgs	Capture
11-01 13:55	40m	-9 / -	BH3FZG	- / -14	2	Partial capture
11-01 13:53	40m	-8 / -	BD8ENX	- / -10	2	Partial capture
10-31 04:35	40m	- / -12	PV8AJ	-18 / -	2	Partial capture
10-31 04:34	40m	- / -	UA9SY	-10 / -	2	Partial capture
10-31 03:50	40m	- / -14	R4FDD	-15 / -	3	✓ Closing fragment
10-31 03:48	80m	- / -	9A2WA	-16 / -	2	Partial capture
10-31 03:44	80m	+1 / +4	R1BL	+11 / -24	8	✓ Full exchange observed
10-31 03:44	80m	-2 / +4	RX6LG	-12 / -3	4	✓ Full exchange observed
10-31 03:43	80m	0 / -10	UA4PDJ	-17 / -22	5	✓ Full exchange observed
10-31 03:42	80m	- / -	OK2CNI	-2 / -	9	Partial capture
10-31 03:42	80m	+6 / -7	RN6DE	-19 / +3	4	✓ Full exchange observed
10-31 03:41	80m	+2 / -15	CT7AUT	-11 / -5	3	Partial capture
10-31 03:37	80m	+1 / -	ON4MAP	-18 / -15	5	Partial capture
10-31 03:37	80m	-1 / -3	S50XX	+12 / -18	5	✓ Full exchange observed
10-31 03:36	80m	+1 / -8	DK7UY	-1 / -	4	✓ Closing observed
10-31 03:34	80m	- / -	DL2YMG	-8 / -	2	Partial capture
10-31 03:34	80m	- / -	EA1IOK	-10 / -	2	Partial capture
10-31 03:32	80m	-5 / -6	RM5F	-5 / +5	6	✓ Full exchange observed
10-31 03:31	80m	-6 / -5	R4FDD	-7 / -12	4	✓ Full exchange observed
10-30 16:22	80m	-11 / -8	PA4CC	+8 / -3	8	Partial capture
10-30 16:22	80m	- / -	UA5D	-9 / -	7	Partial capture
10-30 16:20	80m	-9 / -	R6KA	-11 / +7	4	✓ Closing observed
10-30 16:20	80m	-14 / -	RO3ZW	-8 / -19	3	✓ Closing observed
10-30 16:12	80m	- / -4	UA3VBD	-7 / -	2	Partial capture
10-30 16:11	80m	- / -	UA3DPM	+10 / -	2	Partial capture
10-30 16:10	80m	-12 / -	RL3QGD	-17 / -24	3	✓ Closing observed
10-30 16:08	80m	-10 / -	ON4AEO	- / -18	3	Partial capture
10-30 16:07	80m	- / -6	RD7LC	-12 / -	2	Partial capture
10-30 16:03	80m	-14 / -9	R8CC	-12 / +1	4	✓ Full exchange observed
10-30 16:03	80m	-15 / -	RU3OH	-21 / -24	3	Partial capture
10-30 16:03	80m	-12 / -	UA6EU	- / -2	2	✓ Closing fragment
10-30 16:02	80m	- / -	1840	-3 / -	3	Partial capture
10-30 16:01	80m	-15 / -8	RY9C	-3 / -4	5	✓ Full exchange observed
10-30 16:00	80m	-14 / +3	RC6OZ	-9 / +9	5	✓ Full exchange observed
10-30 15:59	80m	-8 / -	RY2B	- / -2	2	✓ Closing fragment
10-30 15:58	80m	- / -	UA3DPM	+2 / -	3	Partial capture
10-28 17:39	80m	- / -	RA3FH	-11 / -	3	Partial capture
10-28 17:38	80m	-9 / -	R6AO	- / -7	2	✓ Closing fragment
10-28 17:37	80m	- / -	YL2GJX	-6 / -	3	Partial capture
10-28 17:37	80m	- / -	RZ6BS	-24 / -	2	Partial capture
10-28 17:36	80m	-12 / -	RT3K	- / -8	2	✓ Closing fragment
10-28 17:32	40m	-8 / -	R9UG	- / -5	3	✓ Closing fragment
10-28 17:29	40m	-9 / -	RZ6ASO	- / -11	3	✓ Closing fragment
10-28 17:27	40m	-12 / -6	RA6OY	-1 / -8	5	✓ Full exchange observed
10-28 17:26	40m	-10 / -8	RU3VT	-16 / -	3	✓ Closing observed
10-28 17:24	40m	- / -	RD3MJ	-4 / -	5	Partial capture
10-28 17:21	40m	- / -	R6YG	-11 / -	4	Partial capture
10-28 17:19	40m	-9 / +4	RW3QW	-2 / -	3	✓ Closing observed
10-28 17:18	40m	-7 / -	US3EW	- / -24	2	✓ Closing fragment
10-28 17:17	40m	- / -	DL3NAA	-5 / -	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
035045 -14 2033  UA3WDO R4FDD -14
035045 -12  232  UA3WDO F3CJ JO10
035115 -14 2033  UA3WDO R4FDD RR73 (x2)
043400  -9 2650  UA3WDO UA9SY LO63 (x2)
043530 -17 1446  UA3WDO PV8AJ R-12 (x2)
135300  -8 2059  BD8ENX UA3WDO -10 (x2)
135545  -6 2059  BH3FZG UA3WDO -14 (x2)
135645 -10 2059  CQ UA3WDO KO71
135730  -4  777  UA3WDO RW4HD LO53
135730 -17 2059  UA3WDO IN3LHF -06

80m

UTC    dB Audio  Message
034545 +12 2304  UA3WDO R1BL KO59
034545  -2 2196  UA3WDO OK2CNI JN79
034600  +1 1995  R1BL UA3WDO -24
034615 +11 2303  UA3WDO R1BL R+04
034615  -1 2196  UA3WDO OK2CNI JN79
034630  +1 1995  R1BL UA3WDO -24
034645  +7 2304  UA3WDO R1BL R+01
034645  -7 2196  UA3WDO OK2CNI JN79
034730  +0 1995  R1BL UA3WDO 73
034745 +12 2304  UA3WDO R1BL 73
034800  +4 1995  CQ UA3WDO KO71
034815  -5  660  <UA3WDO> SX37VER
034815  +9 2374  UA3WDO IQ4JO JN63
034845 -15 2618  UA3WDO 9A2WA JN83 (x2)

10m

UTC    dB Audio  Message
122900  -5  727  UA3WDO DC3LC 73
120815 -11 2197  UA3WDO F5GPE JN25
120815 -23 1881  UA3WDO DO6LE JN59
120845  -6 2193  UA3WDO LZ2SPD KN22 (x2)
120945 -24 1881  UA3WDO DO6LE R-19
121115 -15 1942  UA3WDO DL6RBG R-03 (x2)
135345  -6  728  UA3WDO LZ3CB KN32
135430 -15 2226  LZ3CB UA3WDO RR73
135445  -8  728  UA3WDO LZ3CB 73
135500 -15 2226  CQ UA3WDO KO71
130545 -17 2204  UA3WDO PY5TD GG54 (x3)

20m

UTC    dB Audio  Message
133145  +4 2913  UA3WDO F4BYA JN19
133145 +15  766  UA3WDO 9A2RD JN65
133215  -3 2913  UA3WDO F4BYA JN19
133215 +16  766  UA3WDO 9A2RD JN65
133245  +1 2913  UA3WDO F4BYA JN19
133245 +18  783  UA3WDO 9A2RD R-03
133345  -1 2913  UA3WDO F4BYA JN19 (x3)
133515 -13 2326  UA3WDO ON7AC JO11
133515  +2 2913  UA3WDO F4BYA JN19 (x5)

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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