CX1UI — FT8 activity observed at SO8OO

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. 69 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-24 and 2026-08-29.

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 69 FT8 messages attributed to CX1UI as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (43%), followed by 20 m (39%) and 40 m (17%). Most decodes (100%) fell within the six-hour window 21:00-03:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -18 dB.

Overview

69
Messages attributed
3
UTC dates decoded
14
Active 15-min windows
-18 dB
Estimated median S/N

Bands

80m · 30 40m · 12 20m · 27
First attributed message: 2026-08-24
Last attributed message: 2026-08-29 01:59 UTC

Observed FT8 message patterns

Attributed sample
69 messages
Active dates
3 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) 40, moderate (-15 to -9 dB) 27, 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:

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 · 8 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
11,947 km (approx.)
Last such locator decoded
2026-08-27 01:55 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 UTCBandCX1UI S/NCounterpartCounterpart S/NMsgsCapture
09-16 21:41 40m - / - EA7LGM -9 / - 6 Partial capture
09-16 21:26 40m - / -21 LA8QW -9 / - 5 ✓ Closing fragment
09-16 21:23 40m - / - PD2PE -17 / - 5 Partial capture
09-16 21:22 40m - / - DF7EF -2 / - 14 Partial capture
09-16 21:22 40m - / -11 F1BBI -6 / - 4 Partial capture
08-30 22:00 20m - / -18 CE2EP -14 / - 2 Partial capture
08-29 02:29 40m - / -19 R6OK +6 / - 4 ✓ Closing fragment
08-29 02:27 40m - / -16 RZ6LY +4 / - 7 ✓ Closing fragment
08-29 02:26 40m - / -15 R3LDK -14 / - 3 ✓ Closing fragment
08-29 02:24 40m - / -15 RZ6ALZ -3 / - 4 ✓ Closing fragment
08-29 02:23 40m - / -19 IZ8PPI -14 / - 4 Partial capture
08-29 02:21 40m - / - SM6CCO -14 / - 2 Partial capture
08-29 02:19 40m - / - US5EAA -6 / - 2 Partial capture
08-29 02:15 40m - / -12 RW3SB -8 / - 2 ✓ Closing fragment
08-29 02:10 40m - / - RW3SB -2 / - 2 Partial capture
08-29 02:10 40m - / - R6OK -6 / - 2 Partial capture
08-29 02:09 40m - / - EA3AKY -6 / - 2 Partial capture
08-29 02:07 40m - / -9 UA8Q -10 / - 4 ✓ Closing fragment
08-29 02:05 40m - / -15 R4FS -9 / - 3 Partial capture
08-29 01:56 40m -19 / - SV7SXE -2 / -18 7 Partial capture
08-29 01:56 40m -19 / -10 UT7UJ -9 / - 4 ✓ Closing observed
08-29 01:56 40m -18 / -15 W4CHA -6 / - 3 ✓ Closing observed
08-29 01:52 40m -20 / -15 R2BQM -19 / -13 5 ✓ Full exchange observed
08-29 01:32 40m - / -13 ON6AA +21 / - 6 ✓ Closing fragment
08-29 01:31 40m -19 / -13 EA3AAY -7 / -13 6 ✓ Full exchange observed
08-29 01:31 40m - / - RN6HK 0 / - 5 Partial capture
08-29 01:30 40m -20 / - MI7XHT - / -13 2 ✓ Closing fragment
08-29 01:29 40m -20 / - UN4PD -2 / -22 2 Partial capture
08-29 01:23 40m - / - RN6HK +4 / - 2 Partial capture
08-29 01:21 40m - / +2 RW0AR -4 / - 4 ✓ Closing fragment
08-29 01:13 40m - / -24 RZ1OA +5 / - 3 ✓ Closing fragment
08-27 02:13 80m - / - EW6BZ +10 / - 2 Partial capture
08-27 02:13 80m - / -14 R4FDD -10 / - 2 Partial capture
08-27 02:13 80m - / -19 SN5J +18 / - 4 Partial capture
08-27 02:10 80m -24 / - NO4J - / -12 2 Partial capture
08-27 02:05 80m - / -15 RA3TKS +5 / - 3 Partial capture
08-27 02:04 80m - / - LA4YGA +5 / - 4 Partial capture
08-27 02:03 80m - / - UF5F 0 / - 5 Partial capture
08-27 02:02 80m -15 / - NN2NN - / -19 3 Partial capture
08-27 02:01 80m -14 / - WD8ANZ - / -22 2 ✓ Closing fragment
08-27 02:00 80m - / - SP9JZU +13 / - 4 Partial capture
08-27 02:00 80m - / -14 UT3UZ +2 / - 2 Partial capture
08-27 02:00 80m - / - UT5MB +2 / - 2 Partial capture
08-27 01:57 80m -17 / - IZ0RVI +8 / -19 5 Partial capture
08-27 01:56 80m - / -12 RA3TKS +4 / - 3 Partial capture
08-27 01:56 80m - / - UF5F -6 / - 6 Partial capture
08-27 01:54 80m - / -12 RD4WM -10 / - 6 Partial capture
08-27 01:49 80m - / -10 KB2ZPB -22 / - 2 Partial capture
08-27 01:47 80m -19 / -11 KO4PRE -18 / - 5 ✓ Closing observed
08-27 01:47 80m - / -7 RD4WM -2 / - 4 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
212700  -4  291  CX1UI DF7EF JO30
212730 -10 2101  CX1UI LA8QW R-21
212730  +0  291  CX1UI DF7EF JO30
212800 -11 2101  CX1UI LA8QW 73
212800  +3  291  CX1UI DF7EF JO30 (x3)
213900 -14 2310  CX1UI HB9CNU JN37
214130  -8 2850  CX1UI EA7LGM IM67 (x7)
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)
80m 
UTC    dB Audio  Message
020545  +4 2843  CX1UI RA3TKS -15
020545 +11 2602  CX1UI LA4YGA JO48
020615  +9 2843  CX1UI RA3TKS -15
021030 -23 1191  NO4J CX1UI -12 (x2)
021315 +26  585  CX1UI SN5J -19
021315  -9 1193  CX1UI R4FDD -14
021345 +15  585  CX1UI SN5J -19
021345 -11 1193  CX1UI R4FDD -14
021345 -24 1900  CX1UI NO4J R-14
021345  +9 2656  CX1UI EW6BZ KO45
021415 +17  585  CX1UI SN5J -19
021415 +10 2656  CX1UI EW6BZ KO45
021445  -2 1360  CX1UI UA3TT LO26
021445 +13  585  CX1UI SN5J -19

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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