CX1UI — 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: Uruguay Most frequent locator attributed to this token: GF26

Receiver-side FT8 activity involving CX1UI, decoded by SO8OO in southeastern Poland. 78 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-24 and 2026-10-14.

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 78 FT8 messages attributed to CX1UI as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (50%), followed by 20 m (35%) and 40 m (15%). Most decodes (100%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (60%); the estimated median was -18 dB.

Overview

Messages attributed

UTC dates decoded

Active 15-min windows

-18 dB

Estimated median S/N

Bands

80m · 39 40m · 12 20m · 27

First attributed message: 2026-08-24
Last attributed message: 2026-10-14 01:12 UTC

Observed FT8 message patterns

Attributed sample: 78 messages
Active dates: 4 UTC dates
Estimated median S/N: -18 dB
Estimated 10th-90th percentile: -24 to -10 dB
Recurring-pattern threshold: Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 47, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 2.

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 CX1UI in decoded directed-looking exchanges:

ON6AA · Belgium ×2 UA4FKT · European Russia ×2 BA3QIQ · China DL3MIB · Fed. Rep. of Germany JA3ADW · Japan JA6TXU · Japan MD0RTZ · Isle of Man PA1AA · Netherlands R9FF · European Russia UW8SM · Ukraine CT3MD · Madeira Islands DL3RL · Fed. Rep. of Germany

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 CX1UI

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: GF26 · 14 decoded messages
SO8OO receiver locator: KN09VW
Locator-centre separation: 11,947 km (approx.)
Last such locator decoded: 2026-10-14 01:08 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	CX1UI S/N	Counterpart	Counterpart S/N	Msgs	Capture
10-21 23:55	40m	- / -	F4MXT/P	-2 / -	2	Partial capture
10-19 00:28	40m	- / -	EB3JT	-18 / -	3	Partial capture
10-19 00:25	40m	- / -16	RD6OZ	+2 / -	7	✓ Closing fragment
10-19 00:22	40m	- / -	DL9KM	-10 / -	4	Partial capture
10-19 00:18	40m	- / -	2E0GSZ	-14 / -	2	Partial capture
10-19 00:18	40m	- / -17	R4FDD	+2 / -	2	✓ Closing fragment
10-19 00:17	40m	- / -	UG4L	-11 / -	2	Partial capture
10-19 00:14	40m	- / -11	EX7CQ	0 / -	2	✓ Closing fragment
10-19 00:10	40m	- / -	ON7SD	-9 / -	3	Partial capture
10-19 00:10	40m	- / -14	IZ8PPI	-23 / -	2	Partial capture
10-19 00:05	40m	- / -6	UA4FKT	+5 / -	4	✓ Closing fragment
10-14 01:17	80m	- / -19	ON6AA	+15 / -	6	✓ Closing fragment
10-14 01:08	80m	- / -	ON6AA	+17 / -	5	Partial capture
10-14 01:02	80m	-17 / -	AA6KJ	- / -17	2	Partial capture
10-14 01:01	80m	- / -	ON6AA	+14 / -	3	Partial capture
10-14 00:50	80m	- / -15	R9IR	-8 / -	6	✓ Closing fragment
10-13 22:27	40m	- / -	F4BYA	+9 / -	4	Partial capture
10-13 22:25	40m	- / -	HB9TIH	0 / -	10	Partial capture
10-13 22:25	40m	- / -	SV4LGX	-2 / -	5	Partial capture
10-13 22:21	40m	- / -	F4BYA	+8 / -	4	Partial capture
10-13 22:21	40m	- / -	M9XPN	-15 / -	2	Partial capture
10-13 22:20	40m	- / -	HB9TIH	-5 / -	5	Partial capture
10-13 22:18	40m	- / -	SV4LGX	-8 / -	3	Partial capture
10-13 22:17	40m	- / -12	OS4K	-14 / -	2	Partial capture
10-13 22:16	40m	- / -	EA3EW	-2 / -	2	✓ Closing fragment
10-13 22:11	40m	- / -	HB9TIH	-5 / -	5	Partial capture
10-13 22:11	40m	- / -	PD0OTH	-8 / -	3	Partial capture
10-13 22:11	40m	- / -12	EA3EW	-3 / -	3	Partial capture
10-13 22:06	160m	- / -	4J3DJ	+1 / -	4	Partial capture
10-13 21:48	40m	- / -	DK6DL	+6 / -	10	Partial capture
10-13 21:43	40m	- / -	RL7Z	-14 / -	2	Partial capture
10-13 21:41	40m	- / -11	GI4TMB	-3 / -	2	✓ Closing fragment
10-13 21:34	40m	- / -20	F8MRQ	+5 / -	3	✓ Closing fragment
10-13 21:28	40m	- / -	SP1MGM	+2 / -	2	Partial capture
10-13 21:20	40m	- / -	F4BYA	+8 / -	4	Partial capture
10-13 21:19	40m	- / -	M8KUG	-6 / -	13	Partial capture
10-13 21:15	40m	- / -	EA1IOK	-10 / -	3	Partial capture
10-12 22:32	40m	- / -14	IZ4AFM	+2 / -	2	✓ Closing fragment
10-12 22:31	40m	- / -	EB5FMC	-15 / -	3	Partial capture
10-12 22:30	40m	- / -19	G0FYD	-11 / -	3	Partial capture
10-12 21:45	40m	- / -	EA1JVG	-14 / -	2	Partial capture
10-12 21:37	40m	- / -4	EI4LE	-8 / -	2	✓ Closing fragment
10-12 21:32	40m	- / -	GM5TGA	-10 / -	2	Partial capture
10-12 21:31	40m	- / -	GW0ARK	+10 / -	2	Partial capture
10-12 21:27	40m	- / -	EA3EDU	-5 / -	5	Partial capture
10-12 21:15	40m	- / -	EA1ESW	-17 / -	2	Partial capture
10-12 01:11	40m	- / -	RM8T	-12 / -	2	Partial capture
10-11 22:31	40m	- / -16	EA1CP	+14 / -	2	✓ Closing fragment
10-10 00:01	40m	- / -19	UX1UA	-13 / -	3	✓ Closing fragment
10-07 01:27	40m	- / -13	RD9U	-18 / -	3	✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m

UTC    dB Audio  Message
002400  +6 2737  CX1UI F1PBZ -14
002400 -12 1476  CX1UI DL9KM JN68
002500  +3 2334  CX1UI RD6OZ KN88 (x4)
002630 -16  788  CX1UI R9OAE NO14
002700  -1 2334  CX1UI RD6OZ KN88 (x3)
002800 -18 2176  CX1UI EB3JT JN01 (x3)
235545  +0  494  CX1UI F4MXT/P JN25 (x2)

80m

UTC    dB Audio  Message
010800 -18 1740  CQ CX1UI GF26                         a1
010815 +16  907  CX1UI ON6AA JO11 (x5)
011200 -20 1741  PY3FBI CX1UI -02
011445 +11 2332  CX1UI F5HNQ IN98
011745 +13  907  CX1UI ON6AA JO11 (x4)
011915  +7 2333  CX1UI F5HNQ IN98
011945 +15  907  CX1UI ON6AA R-19 (x2)

160m

UTC    dB Audio  Message
220645  +3  535  CX1UI 4J3DJ LN30 (x4)

20m

UTC    dB Audio  Message
214300  -9 1261  JA3ADW CX1UI -16
214500 -10 1262  MD0RTZ CX1UI -19 (x2)
214630  -9 1262  JA3ADW CX1UI RR73
214800 -10 1262  UW8SM CX1UI -19 (x2)
215015 -12 1217  CX1UI DL7UKT JO62
215030 -12 1261  JA6TXU CX1UI -14 (x2)
215200 -15 1262  BV2NF CX1UI -21 (x3)
215430 -14 1261  LU6XQB CX1UI R-23
220030 -15 2451  CX1UI CE2EP -18 (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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