UT5UN — 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: Ukraine Most frequent locator attributed to this token: KO50

Receiver-side FT8 activity involving UT5UN, decoded by SO8OO in southeastern Poland. 289 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, across 29 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-24.

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 289 FT8 messages attributed to UT5UN as the transmitting token by decoded message structure across 29 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (33%), followed by 40 m (30%) and 80 m (26%). Most decodes (90%) fell within the six-hour window 17:00-23:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.2 dB.

Overview

289
Messages attributed
29
UTC dates decoded
46
Active 15-min windows
-9.2 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-24 18:32 UTC

Observed FT8 message patterns

Attributed sample
289 messages
Active dates
29 UTC dates
Estimated median S/N
-9.2 dB
Estimated 10th-90th percentile
-17 to +1 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 49, moderate (-15 to -9 dB) 103, strong (≥ -8 dB) 137.

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.

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 UT5UN

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
KO50 · 148 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
658 km (approx.)
Last such locator decoded
2026-10-24 18:29 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 UTCBandUT5UN S/NCounterpartCounterpart S/NMsgsCapture
10-24 18:39 80m - / - OZ4CG 0 / - 2 Partial capture
10-24 18:32 80m - / - SQ1RTU -2 / - 4 Partial capture
10-24 18:30 80m -14 / -11 DA1ST +3 / -14 8 ✓ Full exchange observed
10-24 18:23 80m -9 / - 3W9T - / -17 2 ✓ Closing fragment
10-24 18:19 60m - / - F4FVW -18 / - 2 Partial capture
10-24 18:18 60m -7 / -10 IK3VUT -1 / -18 6 Partial capture
10-24 18:17 60m - / - DK1XAM -16 / - 2 Partial capture
10-24 18:15 60m - / -19 IK8OAM -16 / - 2 Partial capture
10-24 18:14 60m -4 / +10 OH3MB -4 / -2 5 ✓ Full exchange observed
10-24 18:14 60m -8 / -10 SV8NAJ -14 / -16 6 ✓ Full exchange observed
10-24 18:10 60m -6 / -3 SP3EPK +5 / - 4 ✓ Closing observed
10-24 18:09 60m -18 / -4 US0QV -7 / -5 5 ✓ Full exchange observed
10-24 18:09 60m -5 / - DL1UDO -4 / -15 7 Partial capture
10-24 18:07 60m - / -10 SP9DWT -18 / - 3 ✓ Closing fragment
10-24 18:01 40m - / - RZ4FWA -10 / - 3 Partial capture
10-24 18:01 40m - / - SH7MEM -8 / - 2 ✓ Closing fragment
10-24 18:01 40m - / -18 ON3MOH -11 / - 3 Partial capture
10-23 11:22 10m - / -10 CT7AXN -18 / - 2 ✓ Closing fragment
10-18 19:18 60m - / - DL1CF -2 / - 7 Partial capture
10-18 19:13 60m - / - EB1LA -7 / - 3 Partial capture
10-18 19:13 60m - / - SQ2BXI -9 / - 2 Partial capture
10-18 19:12 60m - / - G0AZH -8 / - 2 Partial capture
10-18 18:55 40m - / - R2AL -7 / - 4 Partial capture
10-18 18:51 40m - / -15 DG6CHI -4 / - 3 ✓ Closing fragment
10-18 18:48 40m - / - IZ3KLB -7 / - 3 Partial capture
10-18 18:48 40m - / - R2AL -9 / - 4 Partial capture
10-09 18:19 40m -10 / - YB2RF - / -18 2 Partial capture
10-09 18:13 80m - / - SV8EUB -9 / - 5 Partial capture
10-09 18:10 80m -2 / - UZ5ZU +6 / +6 5 ✓ Full exchange observed
10-09 18:07 60m -17 / - SV8NAJ - / -14 2 Partial capture
10-09 18:06 60m - / - DL9KM -16 / - 6 Partial capture
10-09 18:06 60m - / - EA1IOK -3 / - 5 Partial capture
10-09 18:05 60m -16 / -7 YO4BEW -18 / -6 4 ✓ Full exchange observed
10-09 18:03 60m -15 / +7 ER1CW -14 / - 4 ✓ Closing observed
10-09 18:03 60m -20 / -3 F4DVO +4 / -19 10 ✓ Full exchange observed
09-25 20:09 160m - / - UA4FKT -11 / - 2 Partial capture
09-25 20:08 160m - / -18 UT7UA +10 / - 4 ✓ Closing fragment
09-25 20:04 80m -2 / -9 DA6YY -2 / -19 5 ✓ Full exchange observed
09-25 20:01 80m -10 / - SP5DFK -11 / -18 3 ✓ Closing observed
09-25 20:00 80m -6 / - DL4BCY +5 / -17 3 ✓ Closing observed
09-25 20:00 80m - / - DO1XD -14 / - 3 Partial capture
09-25 19:57 80m 0 / +4 DK9PH +7 / -16 5 ✓ Full exchange observed
09-25 19:56 80m - / -8 EU1EU +2 / - 3 ✓ Closing fragment
09-24 17:46 60m -9 / -15 9A60CBM -7 / -19 5 Partial capture
09-18 19:56 40m - / - IU8GUK -16 / - 2 Partial capture
09-18 19:55 40m +2 / - RN6MA -5 / - 3 ✓ Full exchange observed
09-18 19:52 60m - / -19 DC8RA +3 / - 3 ✓ Closing fragment
09-16 20:19 60m - / -17 C31CT -10 / - 2 ✓ Closing fragment
09-14 19:15 80m -2 / -3 9A3AUH +6 / -18 5 ✓ Full exchange observed
09-14 19:11 80m - / -17 OE5ABL 0 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

80m
UTC    dB Audio  Message
183015 -14 2031  DA1ST UT5UN -14
183030  +3 2030  UT5UN DA1ST R-11
183045 -14 2031  DA1ST UT5UN -14
183100  -1 2030  UT5UN DA1ST R-12 (x2)
183145 -13 2031  DA1ST UT5UN RR73
183200  -6 2097  UT5UN SQ1RTU JO73
183200  +3 2030  UT5UN DA1ST 73
183215 -16 2031  DA1ST UT5UN 73
183230  -6 2097  UT5UN SQ1RTU JO73 (x3)
183930  +0 1438  UT5UN OZ4CG JO75 (x2)
184430  +3 2097  UT5UN SQ1RTU JO73
60m
UTC    dB Audio  Message
181730 -11 2016  CQ UT5UN KO50
181745 -14 2126  UT5UN DK1XAM JO42
181800  -5 2016  CQ UT5UN KO50
181815  +3 1907  UT5UN IK3VUT JN65
181815  -8 2015  UT5UN DL4YDR JO32
181815 -19 2125  UT5UN DK1XAM JO42
181830  -6 2016  IK3VUT UT5UN -18
181845  -6 1907  UT5UN IK3VUT R-10
181900  -8 2016  IK3VUT UT5UN -18
181915  +1 1907  UT5UN IK3VUT R-12
181930  -8 2016  IK3VUT UT5UN -18
181945 -17 1449  UT5UN F4FVW JN29
182000  -5 2016  CQ UT5UN KO50
182015 -18 1449  UT5UN F4FVW JN29
182030 -18 2016  CQ UT5UN KO50
40m
UTC    dB Audio  Message
185100  -4  896  UT5UN DG6CHI JN58 (x3)
185500  -7 1012  UT5UN R2AL KO85 (x4)
180100  -9 2285  UT5UN ON3MOH -18
180130  -8  791  UT5UN SH7MEM JO66
180130  -9 1817  UT5UN RZ4FWA LO23
180130 -12 2285  UT5UN ON3MOH -18
180200  -9 1816  UT5UN RZ4FWA LO23
180200 -12 2285  UT5UN ON3MOH -18
180230 -11 1816  UT5UN RZ4FWA LO23
180330  -8  791  UT5UN SH7MEM 73
10m
UTC    dB Audio  Message
084245 -10 1824  UT5UN LZ4VR R+05 (x2)
084900 -12  842  UT5UN R6DWD -09
085130  -7 1392  UT5UN EA7BEM IM66 (x3)
085430 -11  842  UT5UN EK1AR -11 (x2)
143415 -17 2178  UT5UN ON5RZ JO21 (x3)
143945 -17 1592  UT5UN PA1GLD JO21 (x2)
112215 -22 1600  UT5UN CT7AXN R-10 (x2)
160m
UTC    dB Audio  Message
200830  +6 2799  UT5UN UT7UA KO50 (x2)
200900  -7 2412  UT5UN UA4FKT LO23
200930 +14 2799  UT5UN UT7UA R-18
200930 -15 2412  UT5UN UA4FKT LO23
201000 +10 2799  UT5UN UT7UA 73
201015 -14 2413  CQ UT5UN KO50 (x4)
20m
UTC    dB Audio  Message
175445 -11 2067  UT5UN RZ4FWA R-03
175500  -6 2451  PA1AA UT5UN -09
175515  -7 1351  UT5UN PA1AA R-16
175530  -8 2451  PA1AA UT5UN -09
175545  -9 2067  UT5UN RZ4FWA R-03
175545 -13 1351  UT5UN PA1AA R-16
175615  -8 2067  UT5UN RZ4FWA LO23
175615 -13 1351  UT5UN PA1AA R-16
175645  -9 2067  UT5UN RZ4FWA R-04
175645 -13 1351  UT5UN PA1AA 73
180015  -4 2451  UT5UN RY3F -01
180145  +1 2451  UT5UN M7WLT IO91
180345 -18  641  UT5UN R2AL KO85
180345  -6 2451  UT5UN M7WLT IO91
180445 -22  641  UT5UN R2AL KO85

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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