UR5XOS — 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: KO40

Receiver-side FT8 activity involving UR5XOS, decoded by SO8OO in southeastern Poland. 100 FT8 messages attributed to this token as transmitter, on 80m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-21 and 2026-09-24.

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 100 FT8 messages attributed to UR5XOS 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 (100%). Most decodes (89%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (100%); the estimated median was +7 dB.

Overview

100
Messages attributed
4
UTC dates decoded
14
Active 15-min windows
+7 dB
Estimated median S/N

Bands

80m · 100
First attributed message: 2026-09-21
Last attributed message: 2026-09-24 00:46 UTC

Observed FT8 message patterns

Attributed sample
100 messages
Active dates
4 UTC dates
Estimated median S/N
+7 dB
Estimated 10th-90th percentile
-1 to +14 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 100.

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 UR5XOS 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 UR5XOS

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
KO40 · 33 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
516 km (approx.)
Last such locator decoded
2026-09-24 00:37 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 UTCBandUR5XOS S/NCounterpartCounterpart S/NMsgsCapture
09-24 00:44 80m +2 / - RI1FJZ - / -17 4 Partial capture
09-24 00:33 80m +9 / - 4O7CC - / - 6 Partial capture
09-23 21:56 80m +8 / - TA7ARH - / -14 2 Partial capture
09-23 21:47 80m - / 0 TA7ARH +2 / - 2 Partial capture
09-22 22:30 80m 0 / - RI1FJZ - / -16 7 Partial capture
09-22 18:26 80m 0 / - LX1JH - / - 2 Partial capture
09-22 18:16 80m +4 / - LX1JH - / - 2 Partial capture
09-22 18:05 80m 0 / -10 YO4GIY -2 / -14 4 ✓ Full exchange observed
09-22 17:57 80m +7 / -11 UT7NI +14 / 0 5 ✓ Full exchange observed
09-22 02:47 80m +1 / - HI8R - / -14 17 Partial capture
09-22 02:43 80m +10 / - HI8R - / -14 2 Partial capture
09-22 02:27 80m +8 / - HI8R - / -17 13 Partial capture
09-22 02:17 80m +6 / - HI8R - / -17 8 Partial capture
09-22 01:51 80m - / -3 GM6URC -12 / - 4 Partial capture
09-22 01:48 80m +10 / -20 WK1O -10 / -18 12 ✓ Full exchange observed
09-22 00:10 80m +6 / - VU2CPL - / -18 4 Partial capture
09-22 00:07 80m +17 / -1 4L7T +1 / - 4 Partial capture
09-22 00:03 80m +12 / - SP9TBT +13 / -9 6 ✓ Full exchange observed
09-21 23:46 80m +13 / - UA4FKT +12 / +9 5 Partial capture
09-21 23:45 80m +13 / -6 YO3GNF -4 / -10 4 ✓ Full exchange observed
09-21 23:38 80m +13 / - TF1A - / - 9 Partial capture
09-20 22:26 40m - / - RZ4FWA -14 / - 2 Partial capture
09-20 22:24 40m - / -2 G8KHF +6 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
223445  +0  752  RI1FJZ UR5XOS -16
214745  +4  502  UR5XOS TA7ARH +00 (x2)
215630  +6  429  TA7ARH UR5XOS R-14 (x2)
003345 +11  466  4O7CC UR5XOS KO40 (x6)
004445  +0 1222  RI1FJZ UR5XOS -17 (x4)
40m 
UTC    dB Audio  Message
220845 -21 2087  UR5XOS PE1NPS JO22
222045  -7 1338  UR5XOS PA1AA R-17
222430  +6  650  UR5XOS G8KHF -02 (x2)
222600 -14 2027  UR5XOS RZ4FWA LO23 (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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