UT5ZZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UT5ZZ, decoded by SO8OO in southeastern Poland. 127 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-07-15 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 127 FT8 messages attributed to UT5ZZ as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (87%), followed by 20 m (13%). Several six-hour UTC windows tied for the largest share (95%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-09-20 14:33 UTC
Observed FT8 message patterns
- Attributed sample
- 127 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -14 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 69, strong (≥ -8 dB) 52.
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 UT5ZZ 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 UT5ZZ
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
- KN56 · 44 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 781 km (approx.)
- Last such locator decoded
- 2026-09-20 14:33 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 | UT5ZZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-20 14:32 | 40m | +9 / -13 | DL1FAM | +1 / -13 | 5 | ✓ Full exchange observed |
| 09-20 14:30 | 40m | +8 / +5 | EU1AFX | -12 / -10 | 4 | ✓ Full exchange observed |
| 08-22 02:41 | 40m | +3 / +8 | OD5ZZ | -23 / -7 | 2 | Partial capture |
| 08-22 02:38 | 40m | +3 / -3 | RK3AW | -11 / -8 | 4 | ✓ Full exchange observed |
| 08-22 02:36 | 40m | - / - | ON4MAP | -18 / - | 3 | Partial capture |
| 08-22 02:35 | 40m | - / - | EB2EMZ | -10 / - | 2 | Partial capture |
| 08-22 02:33 | 40m | -1 / - | YL2KF | - / -10 | 2 | ✓ Closing fragment |
| 08-22 02:31 | 40m | +4 / -5 | W6NWS | 0 / -11 | 4 | ✓ Full exchange observed |
| 07-25 23:27 | 40m | -6 / - | YB5NHD | - / -20 | 2 | ✓ Closing fragment |
| 07-25 23:09 | 40m | -10 / - | E72ET | - / -3 | 2 | ✓ Closing fragment |
| 07-25 23:06 | 40m | -8 / 0 | DH0GBC | -10 / - | 3 | ✓ Closing observed |
| 07-20 00:34 | 40m | -10 / - | HA3GX | - / -9 | 2 | ✓ Closing fragment |
| 07-20 00:33 | 40m | -9 / - | PD0IFI | - / -7 | 2 | ✓ Closing fragment |
| 07-20 00:30 | 40m | -8 / - | W4KWS | - / -18 | 2 | Partial capture |
| 07-20 00:24 | 40m | -4 / -6 | F5HNQ | -8 / -11 | 4 | ✓ Full exchange observed |
| 07-19 00:47 | 40m | -16 / -4 | LZ3CB | -12 / - | 5 | ✓ Closing observed |
| 07-19 00:39 | 40m | - / - | DG7BST | -9 / - | 7 | Partial capture |
| 07-19 00:23 | 20m | -7 / - | VE2OPR | - / -10 | 2 | Partial capture |
| 07-19 00:11 | 40m | -10 / - | A61OK | - / -12 | 2 | Partial capture |
| 07-19 00:09 | 40m | -11 / +1 | DL7ACA | -9 / -4 | 4 | ✓ Full exchange observed |
| 07-19 00:08 | 40m | -10 / - | TA3ZZ | - / -14 | 2 | ✓ Closing fragment |
| 07-19 00:06 | 40m | -12 / - | VP2MAA | - / -15 | 2 | ✓ Closing fragment |
| 07-18 01:21 | 40m | -12 / - | K1VU | - / -16 | 2 | ✓ Closing fragment |
| 07-18 01:18 | 40m | -15 / - | K4C | - / -19 | 3 | ✓ Closing fragment |
| 07-18 01:11 | 40m | -11 / - | KP4JFR | - / -18 | 3 | ✓ Closing fragment |
| 07-18 01:09 | 40m | -8 / - | EP2AES | - / -18 | 2 | ✓ Closing fragment |
| 07-18 01:04 | 40m | -10 / - | CU6AB | - / -18 | 4 | ✓ Closing fragment |
| 07-18 01:01 | 40m | -12 / - | KF8N | - / -13 | 2 | ✓ Closing fragment |
| 07-18 00:59 | 40m | - / - | DK8HC | -9 / - | 3 | Partial capture |
| 07-18 00:59 | 40m | -9 / -1 | EA3AKY | -14 / -12 | 7 | ✓ Full exchange observed |
| 07-18 00:56 | 40m | -9 / - | 9A3AUH | -7 / -7 | 2 | Partial capture |
| 07-15 01:22 | 40m | -14 / - | T47FCR | - / -22 | 2 | Partial capture |
| 07-15 01:20 | 40m | -16 / - | EA2DYB | -19 / -17 | 3 | ✓ Closing observed |
| 07-15 01:15 | 20m | -9 / - | PW8BR | - / -15 | 3 | Partial capture |
| 07-15 01:12 | 20m | -12 / - | A41KB | - / -15 | 2 | ✓ Closing fragment |
| 07-15 00:43 | 40m | -10 / - | W4DXM | - / -6 | 2 | ✓ Closing fragment |
| 07-15 00:36 | 40m | - / - | YO3GNF | -4 / - | 3 | Partial capture |
| 07-15 00:35 | 40m | -14 / - | YO4NF | -9 / -8 | 3 | ✓ Closing observed |
| 07-04 14:00 | 20m | - / - | IK1RQX | -7 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 024100 -23 1325 UT5ZZ OD5ZZ +08 024115 +3 2237 OD5ZZ UT5ZZ R-07 011145 -20 1203 UT5ZZ DL1UDO R-17 143015 +6 2396 CQ UT5ZZ KN56 143030 -7 2396 UT5ZZ SM7HWD JO65 143045 +5 2396 EU1AFX UT5ZZ -10 143100 -14 1282 UT5ZZ EU1AFX R+05 143115 +10 2396 EU1AFX UT5ZZ RR73 143130 -11 1282 UT5ZZ EU1AFX 73 143200 +3 1158 UT5ZZ DL1FAM JN49 143215 +9 2396 DL1FAM UT5ZZ -13 143230 +2 1158 UT5ZZ DL1FAM R-13 143245 +9 2395 DL1FAM UT5ZZ RR73 143300 -2 1158 UT5ZZ DL1FAM 73 143315 +7 2396 CQ UT5ZZ KN56
UTC dB Audio Message 011215 -7 2100 CQ UT5ZZ KN56 011245 -12 2101 A41KB UT5ZZ -15 (x2) 011445 -11 2101 ND9M UT5ZZ -20 011530 -10 2101 PW8BR UT5ZZ -15 (x3) 011730 -14 2100 CQ UT5ZZ KN56 (x2) 014815 -13 2367 VP2MAA UT5ZZ -15 014915 -9 2368 YV6BXN UT5ZZ -18 002045 -2 2364 CQ UT5ZZ KN56 002115 -1 2364 N0STL UT5ZZ -17 002300 -2 2364 VE2OPR UT5ZZ -10 (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.
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