UR5KBX — 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: KO30

Receiver-side FT8 activity involving UR5KBX, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-11 and 2026-08-24.

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 20 FT8 messages attributed to UR5KBX as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (70%) fell within the six-hour window 06:00-12:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.

Overview

20
Messages attributed
4
UTC dates decoded
5
Active 15-min windows
-8 dB
Estimated median S/N

Bands

20m · 20
First attributed message: 2026-08-11
Last attributed message: 2026-08-24 11:36 UTC

Observed FT8 message patterns

Attributed sample
20 messages
Active dates
4 UTC dates
Estimated median S/N
-8 dB
Estimated 10th-90th percentile
-15 to -3 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 11.

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 UR5KBX in decoded directed-looking exchanges:

Most frequent locator attributed to UR5KBX

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
KO30 · 13 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
376 km (approx.)
Last such locator decoded
2026-08-17 13:07 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 UTCBandUR5KBX S/NCounterpartCounterpart S/NMsgsCapture
08-31 03:45 20m - / -16 OD5KU +16 / - 3 ✓ Closing fragment
08-25 19:41 20m - / -12 PA8S +16 / - 9 ✓ Closing fragment
08-25 19:39 20m - / - F4BYA +11 / - 3 Partial capture
08-25 17:52 20m - / - M7LYG +7 / - 3 Partial capture
08-25 17:46 20m - / +5 EB3JT +9 / - 3 ✓ Closing fragment
08-25 17:45 20m - / - F4BYA +14 / - 3 Partial capture
08-25 16:20 20m - / -21 OH/SM5MRW -6 / - 4 Partial capture
08-25 08:14 20m - / -12 CT7AUT -6 / - 2 ✓ Closing fragment
08-24 14:14 20m - / -7 IQ4JO +12 / - 3 ✓ Closing fragment
08-24 11:36 20m -2 / - SP6AXW - / -10 2 ✓ Closing fragment
08-24 06:25 20m - / -14 TA4DX +8 / - 2 ✓ Closing fragment
08-23 19:23 20m - / -17 EI4JFB +1 / - 3 Partial capture
08-12 06:19 20m -9 / - TA9AAR - / - 11 Partial capture
08-11 20:01 20m - / -15 E74K -6 / - 2 ✓ Closing fragment
08-11 17:28 20m -8 / - UN0GY - / -19 4 ✓ Closing fragment
08-10 08:31 20m - / - DK3HV -17 / - 5 Partial capture
08-09 06:37 20m - / -10 EA1A -14 / - 2 ✓ Closing fragment
08-08 19:55 20m - / -10 F5RRS +2 / - 3 ✓ Closing fragment
08-08 14:33 20m - / -19 DB2QM -14 / - 3 Partial capture
08-08 14:33 20m - / 0 RN6MA -8 / - 2 ✓ Closing fragment
08-08 13:29 20m - / -16 M9VVE -7 / - 6 ✓ Closing fragment
08-08 13:21 20m - / -10 R4FDQ -18 / - 2 ✓ Closing fragment
08-08 11:43 20m - / -8 OK2CNI -2 / - 3 ✓ Closing fragment
08-08 11:43 20m - / - RZ4FWA -16 / - 3 Partial capture
08-08 11:29 20m - / -9 F1PSX -10 / - 8 ✓ Closing fragment
08-08 10:51 20m - / -22 PD0WL -22 / - 2 Partial capture
08-08 10:37 20m - / -14 SV5BYP -13 / - 3 Partial capture
08-08 10:36 20m - / -14 F1PBZ -6 / - 2 ✓ Closing fragment
08-08 09:32 20m - / -9 LZ2VQ -17 / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m 
UTC    dB Audio  Message
194000 +13 2918  UR5KBX F4BYA JN19 (x2)
194100 +19  673  UR5KBX PA8S R-12 (x9)
034530 +10 2671  UR5KBX OD5KU KM73 (x3)
040000  +0 1074  UR5KBX RK4H LO53

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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