UY5LW — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Ukraine Most frequent locator attributed to this token: KO50

Receiver-side FT8 activity involving UY5LW, decoded by SO8OO in southeastern Poland. 184 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-08-28.

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 184 FT8 messages attributed to UY5LW as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 20 m (43%). Most decodes (91%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (70%); the estimated median was -5 dB.

Overview

184
Messages attributed
9
UTC dates decoded
20
Active 15-min windows
-5 dB
Estimated median S/N

Bands

40m · 104 20m · 80
First attributed message: 2026-06-07
Last attributed message: 2026-08-28 20:23 UTC

Observed FT8 message patterns

Attributed sample
184 messages
Active dates
9 UTC dates
Estimated median S/N
-5 dB
Estimated 10th-90th percentile
-15 to +7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 15, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 128.

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 UY5LW 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 UY5LW

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 · 149 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
658 km (approx.)
Last such locator decoded
2026-08-28 20:23 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 UTCBandUY5LW S/NCounterpartCounterpart S/NMsgsCapture
08-31 05:36 20m - / -17 3A2MW -14 / - 3 ✓ Closing fragment
08-29 05:29 20m - / -18 OA1F -6 / - 2 ✓ Closing fragment
08-28 20:24 40m - / - PA1PXL +3 / - 3 Partial capture
08-28 20:22 40m - / - OE1AVO +13 / - 2 Partial capture
08-27 18:01 40m +10 / -6 UK8OM -10 / -1 8 ✓ Full exchange observed
08-26 18:42 20m +8 / -13 PD2WL +8 / -15 4 ✓ Full exchange observed
08-26 18:40 20m - / - DF9AV/P -17 / - 2 Partial capture
08-26 18:39 20m +6 / - PA3AGN +4 / -7 4 ✓ Closing observed
08-26 18:34 20m -1 / - I3QDK - / -4 2 ✓ Closing fragment
08-26 18:31 20m -4 / - BG7BVI - / -12 4 ✓ Closing fragment
08-26 18:30 20m -3 / - I3QDK - / +2 3 Partial capture
08-26 05:12 20m - / -15 SV8NAJ -8 / - 2 Partial capture
08-26 05:12 20m - / -17 F4IIX +9 / - 7 ✓ Closing fragment
08-26 05:02 20m - / -12 TA3F -8 / - 2 Partial capture
08-26 04:49 20m - / -3 SV9MBH -17 / - 3 ✓ Closing fragment
08-26 04:40 20m - / -22 ZL3GAV -12 / - 3 Partial capture
08-24 00:16 40m -8 / - W1MLT - / - 9 Partial capture
08-24 00:05 40m -15 / - VE1PZ - / - 5 Partial capture
08-23 23:07 40m -5 / - VK6DU - / -23 5 ✓ Closing fragment
08-23 22:49 40m -2 / -15 EN35UKR -8 / -12 11 Partial capture
08-23 22:46 40m 0 / - VJ6X - / -14 5 ✓ Closing fragment
08-23 22:38 40m -6 / - VK6XT - / -25 13 Partial capture
08-23 22:28 40m -6 / - <...> - / - 15 Partial capture
08-23 22:19 40m -6 / - TN8GD - / -17 5 ✓ Closing fragment
08-23 22:04 40m -11 / - SN40KZE - / - 19 Partial capture
08-20 23:03 20m - / - XQ1KK -7 / - 3 ✓ Closing fragment
08-12 19:27 20m -17 / - <...> - / - 3 Partial capture
07-24 22:42 20m - / -6 DL1R +4 / - 3 ✓ Closing fragment
07-24 22:41 20m - / -18 PD4FL -17 / - 2 ✓ Closing fragment
07-24 22:33 20m -12 / - 9Y4C - / - 3 Partial capture
07-24 22:21 20m -14 / - 9Y4C - / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
184045 -17 1052  UY5LW DF9AV/P JN48
184100 +12 2856  CQ UY5LW KO50 (x3)
184215 -17 1053  UY5LW DF9AV/P JN48
184230  +6 2857  CQ UY5LW KO50
184245  +9 2517  UY5LW PD2WL -13
184300  +6 2857  PD2WL UY5LW R-15
184315  +8 2517  UY5LW PD2WL RR73
184330  +9 2857  PD2WL UY5LW 73
052930 -11 3073  UY5LW OA1F -18 (x2)
053600 -13 1637  UY5LW 3A2MW -17 (x3)
40m 
UTC    dB Audio  Message
180230 +12 2784  UK8OM UY5LW KO50
180245  -9 1500  UY5LW UK8OM -06
180300 +12 2784  UK8OM UY5LW R-01
180315 -12 1500  UY5LW UK8OM RR73
180330  +9 2784  UK8OM UY5LW 73
202145 +11 2826  CQ UY5LW KO50 (x2)
202230 +14 2825  UY5LW OE1AVO JN88
202245 +15 2826  CQ UY5LW KO50
202300 +12 2824  UY5LW OE1AVO JN88
202315 +12 2826  CQ UY5LW KO50 (x2)
202430  +4 2825  UY5LW PA1PXL JO21 (x3)

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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