UT5UHX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UT5UHX, decoded by SO8OO in southeastern Poland. 37 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-09-13.
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 37 FT8 messages attributed to UT5UHX as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (49%), followed by 40 m (32%) and 20 m (19%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-13 11:07 UTC
Observed FT8 message patterns
- Attributed sample
- 37 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -14 to 0 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 23.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with UT5UHX in decoded directed-looking exchanges:
Most frequent locator attributed to UT5UHX
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 · 13 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 658 km (approx.)
- Last such locator decoded
- 2026-09-13 11:02 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 UTC | Band | UT5UHX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 11:02 | 40m | -1 / -13 | OZ9FF | -14 / -19 | 15 | ✓ Full exchange observed |
| 09-13 11:00 | 40m | -4 / - | YO4MXK | - / - | 2 | Partial capture |
| 08-28 09:29 | 20m | - / - | F5IXN | -1 / - | 3 | Partial capture |
| 08-28 09:28 | 20m | - / -17 | CT7AUT | -10 / - | 2 | ✓ Closing fragment |
| 08-23 09:53 | 20m | -5 / - | TA3NK | - / -8 | 2 | Partial capture |
| 08-23 09:51 | 20m | +2 / - | DL3HN | - / -10 | 2 | ✓ Closing fragment |
| 07-22 16:04 | 40m | -11 / -4 | UA4FKT | -16 / 0 | 3 | Partial capture |
| 07-22 16:03 | 40m | -14 / - | IQ4JO | - / -10 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 110200 +4 2314 OZ9FF UT5UHX KO50 110215 -19 2314 UT5UHX OZ9FF -13 110230 -5 2314 OZ9FF UT5UHX KO50 110245 -18 2314 UT5UHX OZ9FF -13 (x6) 110530 +0 2315 OZ9FF UT5UHX R-19 (x2) 110615 -16 2314 UT5UHX OZ9FF RR73 110630 +1 2314 OZ9FF UT5UHX R-19 (x2) 110715 -14 2314 UT5UHX OZ9FF RR73
UTC dB Audio Message 103345 -10 2636 UT5UHX F1PBZ -06
UTC dB Audio Message 074345 -22 1441 UT5UHX UT5ZC -18 095115 -12 693 CQ UT5UHX KO50 095145 +0 692 DL3HN UT5UHX -10 (x2) 095245 +0 692 CQ UT5UHX KO50 (x2) 095345 -1 692 TA3NK UT5UHX -08 (x2) 092800 -11 1521 UT5UHX CT7AUT -17 (x2) 092900 -1 1520 UT5UHX F5IXN JN23 (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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