UA3SNB — 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: LO14

Receiver-side FT8 activity involving UA3SNB, decoded by SO8OO in southeastern Poland. 2,855 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 94 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-19.

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 2,855 FT8 messages attributed to UA3SNB as the transmitting token by decoded message structure across 94 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (58%), followed by 40 m (42%). Most decodes (61%) 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 -10 dB.

Overview

2,855

Messages attributed

UTC dates decoded

337

Active 15-min windows

-10 dB

Estimated median S/N

Bands

40m · 1,212 20m · 1,643

First attributed message: 2026-06-06
Last attributed message: 2026-10-19 12:30 UTC

Observed FT8 message patterns

Attributed sample: 2,855 messages
Active dates: 94 UTC dates
Estimated median S/N: -10 dB
Estimated 10th-90th percentile: -20 to +3 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 703, moderate (-15 to -9 dB) 858, strong (≥ -8 dB) 1,294.

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 UA3SNB in decoded directed-looking exchanges:

G1CEC · England ×3 MW7RHR · Wales ×3 DL7ET · Fed. Rep. of Germany ×2 HB9CXZ · Switzerland ×2 M0LAD · England ×2 OZ1LGJ · Denmark ×2 PA2AMJ · Netherlands ×2 PD2V · Netherlands ×2 SM7VGQ · Sweden ×2 SP3SXU · Poland ×2 EU1EU · Belarus ×2 SP1ZMO · Poland ×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 UA3SNB

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: LO14 · 1,608 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 1,524 km (approx.)
Last such locator decoded: 2026-10-17 06:34 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	UA3SNB S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-19 12:29	40m	-18 / -	UW5ESX	- / +3	2	✓ Closing fragment
10-18 06:10	40m	-16 / -	ND9M	- / -16	3	Partial capture
10-17 20:52	40m	- / -22	CT7AXN	+1 / -	4	Partial capture
10-17 20:49	40m	-22 / -	EW4MO	- / -11	2	✓ Closing fragment
10-17 20:12	40m	- / -2	DL8OH	+11 / -	2	Partial capture
10-17 20:08	40m	- / -	DJ9MA	-16 / -	4	Partial capture
10-17 20:04	40m	-11 / -13	TA2VUZ	-17 / -10	6	✓ Full exchange observed
10-15 16:54	40m	-9 / -3	DG5UDO/P	-22 / -16	4	✓ Full exchange observed
10-15 16:53	40m	-10 / -	SP9BBA	- / -15	2	✓ Closing fragment
10-15 16:50	40m	-10 / -	RU6UR/QRP	- / -10	2	Partial capture
10-15 16:47	40m	-9 / -	IZ3EAW	- / -15	2	✓ Closing fragment
10-15 16:46	40m	-12 / -	SM7VGQ	- / -18	3	✓ Closing fragment
10-15 16:45	40m	-17 / -	R3PLA	- / -15	2	✓ Closing fragment
10-15 16:42	40m	-10 / -	DF0NN	-13 / -16	4	✓ Closing observed
10-15 16:40	40m	-8 / -7	LZ1DIO	-12 / -9	3	Partial capture
10-15 16:37	40m	-6 / -	EU4BE	- / 0	2	✓ Closing fragment
10-15 16:33	40m	-7 / -	DF0NN	- / -10	2	Partial capture
10-11 17:03	40m	- / -	R4FDD	-10 / -	2	✓ Closing fragment
10-11 16:59	40m	- / -	RA3LBW	-14 / -	3	Partial capture
10-10 10:08	40m	- / -12	DH1NGL	-14 / -	4	✓ Closing fragment
10-08 12:49	40m	- / -15	R80SAA	-10 / -	2	✓ Closing fragment
10-08 06:22	40m	-12 / -13	OE1HLB	-10 / -4	4	✓ Full exchange observed
10-08 06:18	40m	-14 / -13	DA0M	-11 / -12	3	✓ Full exchange observed
10-07 20:10	40m	- / -	R1BAF	-14 / -	3	Partial capture
10-07 05:39	40m	- / -23	F4NGK	-14 / -	2	✓ Closing fragment
10-07 05:35	40m	-15 / -	KY2J	- / -14	4	Partial capture
10-07 05:33	40m	- / +8	UA3IDQ	-17 / -	2	✓ Closing fragment
10-06 05:50	40m	-16 / -	SQ8AA	- / 0	2	✓ Closing fragment
10-06 05:46	40m	-15 / -	PD1SCO	- / -13	2	Partial capture
10-05 12:49	40m	-20 / -14	SQ6EMJ	-14 / -13	4	✓ Full exchange observed
10-05 12:46	40m	-19 / -	SQ8AZT	-14 / -	3	✓ Closing observed
10-04 16:16	40m	- / -14	UB3BDB	-15 / -	2	✓ Closing fragment
10-04 16:14	40m	-22 / -	YB7IBR	- / -14	2	Partial capture
10-04 16:13	40m	- / -	UB3AMO	-11 / -	3	Partial capture
10-04 15:59	40m	- / -12	R3DMX	-2 / -	2	✓ Closing fragment
10-04 15:56	40m	- / -	R4FCK	-18 / -	2	✓ Closing fragment
10-03 19:10	40m	-8 / -	UA2FFD	- / -15	2	Partial capture
10-03 05:41	40m	-16 / -	R5CB	- / -6	2	✓ Closing fragment
10-03 05:40	40m	-16 / -18	DF7QR	-4 / -11	4	✓ Full exchange observed
10-03 05:39	40m	-16 / -	EU1EU	-14 / -	2	✓ Closing observed
10-03 05:25	40m	- / -14	RA1TR	-10 / -	2	Partial capture
10-02 20:54	40m	- / -3	DM5KN	-20 / -	2	Partial capture
10-02 20:53	40m	- / -	PE2K	-6 / -	2	Partial capture
10-02 20:43	40m	- / -	MW7RHR	-16 / -	2	Partial capture
10-02 20:31	40m	-4 / -	M6DPS	- / -9	2	✓ Closing fragment
10-02 20:29	40m	-2 / -5	F3CJ	-20 / -9	4	✓ Full exchange observed
10-02 20:26	40m	-14 / -	IU4PPL	-24 / -5	5	✓ Full exchange observed
10-02 20:25	40m	-9 / -6	IZ0RTT	-24 / -15	4	✓ Full exchange observed
10-02 20:22	40m	-2 / -22	IW1PPB	-14 / -9	4	✓ Full exchange observed
10-02 20:17	40m	-16 / -3	MM5DIT	-18 / -13	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
201245 -18 1950  UA3SNB DJ9MA JN49
201815 -11 1945  UA3SNB G0CLH R-20
204700 -19 1941  PD7BB UA3SNB -15
204830 -24 1941  GW4REX UA3SNB RR73
204900 -22 1941  EW4MO UA3SNB -11 (x2)
205245  +2  988  UA3SNB CT7AXN IM59 (x4)
061000 -17 1959  ND9M UA3SNB -16 (x3)
122930 -18 1954  UW5ESX UA3SNB +03 (x2)

20m

UTC    dB Audio  Message
191015  +3 1968  UA3SNB F1PPH JN07 (x3)
191130 -17 1968  CQ UA3SNB LO14
191145  +2 1969  UA3SNB F1PPH JN07 (x3)
191330  -4 1966  CQ UA3SNB LO14 (x8)

10m

UTC    dB Audio  Message
053945 -15 2139  UA3SNB R2EA -19 (x2)
054545 -11  556  UA3SNB RK2Z R-13
054545 -12 2139  UA3SNB R2EA R-22
054615  -6  557  UA3SNB RK2Z R-13
054615  -3 2139  UA3SNB R2EA R-22
124430 -10  728  UA3SNB LZ3CB R-11 (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.

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

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