UR3AC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UR3AC, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 6 UTC dates in the available aggregate history. Observed between 2026-09-13 and 2026-09-20.
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 17 FT8 messages attributed to UR3AC as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (71%), followed by 80 m (29%). In this small sample, the estimated median decoder S/N was +1 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-20 17:09 UTC
Observed FT8 message patterns
- Attributed sample
- 17 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- +1 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 17.
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 UR3AC 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 UR3AC
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
- KO61 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 807 km (approx.)
- Last such locator decoded
- 2026-09-20 17:09 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 | UR3AC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 17:49 | 40m | -2 / - | HZ1TT | - / -9 | 3 | ✓ Closing fragment |
| 09-19 17:46 | 40m | +4 / - | Z34CMF | -3 / 0 | 4 | ✓ Closing observed |
| 09-18 18:02 | 80m | 0 / -6 | DL3RL | +10 / -2 | 5 | ✓ Full exchange observed |
| 09-15 03:42 | 80m | -2 / - | II9IAGM | - / - | 2 | Partial capture |
| 09-14 16:34 | 40m | +6 / -3 | M0BEW | 0 / -6 | 5 | ✓ Full exchange observed |
| 09-13 16:24 | 40m | - / -5 | UT0UE | +8 / - | 2 | ✓ Closing fragment |
| 09-13 15:38 | 40m | +2 / - | UR7HMQ | - / -1 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 162430 +9 1569 UR3AC UT0UE RR73 163445 +5 355 M0BEW UR3AC KO61 163500 -1 355 UR3AC M0BEW -03 163515 +8 355 M0BEW UR3AC R-06 163530 +1 355 UR3AC M0BEW RR73 163545 +6 355 M0BEW UR3AC 73 182730 -11 1827 UR3AC 9H4JX -16 174645 +4 649 Z34CMF UR3AC KO61 (x2) 174730 -3 649 UR3AC Z34CMF RRR 174745 +8 648 Z34CMF UR3AC 73 174945 -2 1727 HZ1TT UR3AC KO61 (x3) 170930 -1 1755 SV8NAJ UR3AC KO61
UTC dB Audio Message 034215 -1 1766 II9IAGM UR3AC KO61 (x2) 180245 -1 1503 DL3RL UR3AC KO61 180300 +9 1504 UR3AC DL3RL -06 180315 +3 1503 DL3RL UR3AC R-02 180330 +12 1504 UR3AC DL3RL RR73 180345 -2 1503 DL3RL UR3AC 73
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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