UA1ZJV — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UA1ZJV, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-26 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 15 FT8 messages attributed to UA1ZJV as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (60%), followed by 40 m (40%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-20 17:54 UTC
Observed FT8 message patterns
- Attributed sample
- 15 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -12 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 3.
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 UA1ZJV in decoded directed-looking exchanges:
Most frequent locator attributed to UA1ZJV
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
- KP67
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,050 km (approx.)
- Last such locator decoded
- 2026-07-26 17:08 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 | UA1ZJV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 17:51 | 40m | - / +9 | UA9CR | 0 / - | 2 | Partial capture |
| 09-20 17:49 | 40m | -11 / +1 | R6ML | +6 / -6 | 6 | ✓ Full exchange observed |
| 09-20 17:48 | 40m | -7 / -12 | R3YK | -4 / - | 3 | ✓ Closing observed |
| 09-20 17:46 | 40m | -16 / - | ZS6NL | - / -12 | 2 | ✓ Closing fragment |
| 07-26 17:08 | 20m | -20 / - | R4PFY | - / -5 | 3 | ✓ Closing fragment |
| 07-26 17:04 | 20m | -8 / - | G2RW | - / -22 | 2 | ✓ Closing fragment |
| 07-26 17:00 | 20m | -11 / - | DL4DP | - / -12 | 2 | ✓ Closing fragment |
| 07-26 17:00 | 20m | - / -12 | RA6FSV | -13 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 174700 -18 2189 ZS6NL UA1ZJV RR73 174745 +3 2189 UA1ZJV IZ0ZIP -04 174845 -1 525 UA1ZJV R3YK KO73 (x2) 174930 -7 525 R3YK UA1ZJV RR73 174945 +5 525 UA1ZJV R6ML LN17 (x2) 175030 -12 492 R6ML UA1ZJV -06 175045 +9 493 UA1ZJV R6ML R+01 175100 -10 493 R6ML UA1ZJV RR73 175115 +0 493 UA1ZJV R6ML 73 175145 +0 493 UA1ZJV UA9CR +09 (x2) 175445 -9 841 UA9CR UA1ZJV R-03 175830 -1 598 UA1ZJV DK8HC R-17
UTC dB Audio Message 165845 -9 676 TN8GD UA1ZJV R-03 170030 -16 1207 UA1ZJV RA6FSV LN05 170045 -10 676 DL4DP UA1ZJV -12 170100 -18 1208 UA1ZJV RA6FSV LN05 170115 -12 677 DL4DP UA1ZJV RR73 170200 -12 1207 UA1ZJV RA6FSV R-12 (x2) 170445 -8 682 G2RW UA1ZJV -22 (x2) 170645 -23 1876 BH5HIE UA1ZJV -11 170845 -18 1869 R4PFY UA1ZJV KP67 (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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