UW5ZO — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UW5ZO, decoded by SO8OO in southeastern Poland. 85 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 8 UTC dates in the available aggregate history. Observed between 2026-08-26 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 85 FT8 messages attributed to UW5ZO as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (69%), followed by 80 m (31%). Several six-hour UTC windows tied for the largest share (76%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (99%); the estimated median was +13 dB.
Overview
Bands
Last attributed message: 2026-09-20 19:48 UTC
Observed FT8 message patterns
- Attributed sample
- 85 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- +13 dB
- Estimated 10th-90th percentile
- +4 to +26 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 84.
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 UW5ZO 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 UW5ZO
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 · 64 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 376 km (approx.)
- Last such locator decoded
- 2026-09-20 19:47 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 | UW5ZO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 19:48 | 160m | +14 / - | DL7UKM | - / -2 | 2 | ✓ Closing fragment |
| 09-20 19:42 | 160m | +7 / - | RI1FJZ | - / -16 | 3 | ✓ Closing fragment |
| 09-05 18:29 | 160m | +13 / -5 | EW1I | +4 / +2 | 5 | ✓ Full exchange observed |
| 09-05 01:13 | 160m | +7 / -13 | SV1SSL | -13 / - | 4 | ✓ Closing observed |
| 09-05 00:26 | 160m | +15 / - | RI1FJL | - / - | 5 | Partial capture |
| 09-04 20:33 | 160m | +9 / - | RI1FJL | - / - | 23 | Partial capture |
| 09-04 18:25 | 160m | +18 / - | OZ2LC | - / - | 2 | Partial capture |
| 08-30 04:59 | 80m | +12 / -12 | ON1JP | -22 / -16 | 3 | ✓ Full exchange observed |
| 08-30 04:58 | 80m | +18 / -10 | F4BYA | +1 / -11 | 7 | ✓ Full exchange observed |
| 08-30 04:58 | 80m | +14 / -18 | F5HNQ | -12 / -8 | 5 | ✓ Full exchange observed |
| 08-29 19:19 | 80m | +12 / -10 | UN8DSW | -19 / -14 | 5 | ✓ Full exchange observed |
| 08-29 07:50 | 10m | - / -25 | IU0VOG | -19 / - | 3 | ✓ Closing fragment |
| 08-28 03:52 | 160m | +5 / -14 | OM2WQ | +6 / +2 | 5 | ✓ Full exchange observed |
| 08-27 20:54 | 160m | +16 / - | IU5HIU | -20 / -20 | 5 | ✓ Closing observed |
| 08-27 20:54 | 160m | +15 / - | GM4JYB | - / -20 | 3 | ✓ Closing fragment |
| 08-26 22:35 | 160m | +18 / - | CT2GQA | - / - | 2 | Partial capture |
| 08-26 21:07 | 80m | +26 / - | TF3VS | - / - | 13 | Partial capture |
| 08-26 20:06 | 80m | -4 / - | RI1FJL | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 182915 +12 2373 EW1I UW5ZO KO30 182930 +3 1140 UW5ZO EW1I -05 182945 +14 2372 EW1I UW5ZO R+02 183000 +4 1140 UW5ZO EW1I RR73 183015 +14 2373 EW1I UW5ZO 73 194245 -4 2636 RI1FJZ UW5ZO KO30 (x3) 194515 +21 2636 CQ UW5ZO KO30 (x5) 194815 +19 2635 DL7UKM UW5ZO -02 (x2)
UTC dB Audio Message 045815 -13 2002 UW5ZO F5HNQ IN98 045815 +2 2850 UW5ZO F4BYA JN19 045830 +10 2519 F5HNQ UW5ZO -08 045845 -11 2002 UW5ZO F5HNQ R-18 045845 +1 2850 UW5ZO F4BYA JN19 045900 +19 2519 F5HNQ UW5ZO RR73 045915 -22 1639 UW5ZO ON1JP -12 045915 -13 2001 UW5ZO F5HNQ 73 045915 +0 2850 UW5ZO F4BYA JN19 045930 +19 2519 F4BYA UW5ZO -11 045945 +3 2850 UW5ZO F4BYA R-10 050000 +17 2519 F4BYA UW5ZO RR73 050015 +1 2850 UW5ZO F4BYA 73 050030 +13 2519 ON1JP UW5ZO R-16 (x2)
UTC dB Audio Message 075045 -22 1521 UW5ZO IU0VOG JN61 (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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