UT5ZC — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving UT5ZC, decoded by SO8OO in southeastern Poland. 10,293 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 73 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-22.
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 10,293 FT8 messages attributed to UT5ZC as the transmitting token by decoded message structure across 73 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (45%), followed by 80 m (30%) and 160 m (14%). The busiest six-hour window was 23:00-05:00 UTC, containing 45% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (76%); the estimated median was +0.1 dB.
Overview
Bands
Last attributed message: 2026-10-22 05:48 UTC
Observed FT8 message patterns
- Attributed sample
- 10,293 messages
- Active dates
- 73 UTC dates
- Estimated median S/N
- +0.1 dB
- Estimated 10th-90th percentile
- -15 to +11 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 981, moderate (-15 to -9 dB) 1,476, strong (≥ -8 dB) 7,836.
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 UT5ZC 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 UT5ZC
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
- KN57 · 7,428 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 727 km (approx.)
- Last such locator decoded
- 2026-10-22 05:48 UTC
Other locator fields attributed to this token: KN47 (33) and RQ52 (1).
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 | UT5ZC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-22 05:43 | 40m | -6 / - | TO4A | - / - | 11 | Partial capture |
| 10-22 05:43 | 40m | - / -3 | ON3MOH | -9 / - | 5 | Partial capture |
| 10-22 05:42 | 40m | -11 / - | DF0KK | +4 / - | 2 | ✓ Closing observed |
| 10-22 05:41 | 40m | - / -10 | EC3A | -21 / - | 3 | Partial capture |
| 10-22 05:39 | 40m | -2 / - | PR7EG | - / - | 4 | Partial capture |
| 10-22 05:23 | 40m | -2 / - | TO4A | - / - | 27 | Partial capture |
| 10-22 05:22 | 40m | +1 / - | ZW5K | - / -15 | 3 | ✓ Closing fragment |
| 10-22 05:15 | 40m | -6 / - | PQ5TA | - / 0 | 10 | Partial capture |
| 10-21 20:21 | 80m | +13 / - | ZS6CRR | - / - | 6 | Partial capture |
| 10-21 20:10 | 80m | +4 / - | VK3BDL | - / -11 | 2 | ✓ Closing fragment |
| 10-21 20:07 | 80m | +9 / - | UR4UUR | - / -15 | 3 | ✓ Closing fragment |
| 10-21 20:07 | 80m | +10 / -2 | UR5KC | +10 / -3 | 5 | ✓ Full exchange observed |
| 10-21 20:06 | 80m | +9 / -9 | SN0EG | +4 / - | 5 | ✓ Closing observed |
| 10-21 20:04 | 80m | - / - | RA6OY | +6 / - | 5 | Partial capture |
| 10-21 20:02 | 80m | - / -10 | DL26BBQ | +13 / - | 2 | ✓ Closing fragment |
| 10-21 20:00 | 80m | +1 / - | P4/WE9V | - / - | 5 | Partial capture |
| 10-21 19:46 | 40m | - / - | PD0PY | -10 / - | 3 | Partial capture |
| 10-21 19:29 | 40m | - / -15 | F1PBZ | 0 / - | 4 | Partial capture |
| 10-21 19:29 | 40m | - / - | F4MVU | -8 / - | 3 | Partial capture |
| 10-21 17:21 | 160m | -13 / - | A93MO | - / -24 | 4 | ✓ Closing fragment |
| 10-21 05:43 | 40m | - / - | PA2CV | 0 / - | 2 | Partial capture |
| 10-21 03:05 | 40m | - / - | F5SJC | -6 / - | 2 | Partial capture |
| 10-21 02:51 | 80m | -3 / - | HI6AV | - / - | 7 | Partial capture |
| 10-21 02:49 | 80m | - / - | ON4MAP | -12 / - | 3 | Partial capture |
| 10-21 02:49 | 80m | -5 / -3 | DJ0BS | -5 / -10 | 4 | ✓ Full exchange observed |
| 10-21 02:46 | 80m | -3 / - | 9A2G | +10 / -9 | 6 | ✓ Full exchange observed |
| 10-21 02:46 | 80m | -7 / - | R4FDK | -3 / -8 | 4 | Partial capture |
| 10-20 03:46 | 160m | -2 / - | K7KX | - / - | 2 | ✓ Closing fragment |
| 10-20 03:31 | 160m | 0 / - | YV6BXN | - / - | 5 | Partial capture |
| 10-20 01:57 | 160m | -2 / - | K3LL | - / -18 | 2 | ✓ Closing fragment |
| 10-19 05:49 | 160m | -1 / -18 | G4IRN | -6 / -19 | 7 | ✓ Full exchange observed |
| 10-19 05:42 | 80m | -8 / +4 | S57MPU | +11 / -11 | 6 | ✓ Full exchange observed |
| 10-19 05:41 | 80m | -14 / -13 | OV9A | 0 / -24 | 7 | ✓ Full exchange observed |
| 10-19 05:36 | 40m | - / - | TA3NK | -12 / - | 2 | Partial capture |
| 10-12 02:20 | 40m | -15 / - | 4Z1GY | - / - | 2 | Partial capture |
| 10-12 02:19 | 40m | -16 / - | 9H6C | -18 / - | 5 | Partial capture |
| 10-12 02:13 | 80m | - / - | M0IOY | +1 / - | 4 | Partial capture |
| 10-12 02:05 | 80m | +4 / - | VP2MAW | - / - | 14 | Partial capture |
| 10-12 02:02 | 80m | +10 / - | VP2MAN | - / - | 6 | Partial capture |
| 10-12 02:01 | 80m | +4 / - | IQ9SZ/7 | - / - | 2 | Partial capture |
| 10-12 01:59 | 80m | +6 / - | SP5DFK/QRP | - / - | 3 | Partial capture |
| 10-12 01:58 | 80m | +12 / - | EO210WLP | - / - | 2 | Partial capture |
| 10-12 01:55 | 160m | - / - | CT2GQA | -12 / - | 2 | Partial capture |
| 10-12 01:54 | 160m | +16 / - | VP2MAN | - / - | 2 | Partial capture |
| 10-12 01:51 | 160m | +1 / - | <...> | - / - | 3 | Partial capture |
| 10-11 19:36 | 160m | +2 / -3 | DL9KB | -3 / -14 | 5 | ✓ Full exchange observed |
| 10-11 15:43 | 160m | - / - | RA3BY | -10 / - | 2 | Partial capture |
| 10-11 15:40 | 160m | 0 / +7 | LY8O | -1 / -8 | 6 | ✓ Full exchange observed |
| 10-11 15:37 | 160m | -1 / - | AP5ARS | - / - | 2 | Partial capture |
| 10-11 13:04 | 40m | +1 / - | 3D2HM | - / -16 | 37 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 054315 -6 1847 TO4A UT5ZC KN57 054330 -6 2069 UT5ZC ON3MOH -03 054345 +0 643 TO4A UT5ZC KN57 054400 -17 2069 UT5ZC ON3MOH -03 054415 +1 643 TO4A UT5ZC KN57 054430 -11 2069 UT5ZC ON3MOH -03 054445 -3 2244 TO4A UT5ZC KN57 054500 -8 2069 UT5ZC ON3MOH -03 054515 -7 2256 TO4A UT5ZC KN57 (x7)
UTC dB Audio Message 201445 +4 882 CQ UT5ZC KN57 201500 +5 882 UT5ZC DO6SHB JO71 201515 +3 882 CQ UT5ZC KN57 201530 -19 882 UT5ZC DF1GA JO61 201545 +4 882 CQ UT5ZC KN57 (x4) 201800 -9 1940 EH6DSY UT5ZC KN57 202145 +9 527 ZS6CRR UT5ZC KN57 (x6)
UTC dB Audio Message 034215 -10 2812 UT5ZC OH7DSQ 73 034330 -16 1945 UT5ZC DF9JL JO31 034630 -4 1945 K7KX UT5ZC RR73 (x2) 035030 +4 2052 K7PTC UT5ZC -19 035415 +3 2069 CQ UT5ZC KN57 035445 -1 2068 OH1FA UT5ZC -17 035745 -5 2069 CQ UT5ZC KN57 (x4) 172145 -8 2045 A93MO UT5ZC KN57 (x4)
UTC dB Audio Message 230215 -5 2269 UT5ZC PI4TX JO22 (x4)
UTC dB Audio Message 051315 +6 1687 ZL1RPC/P UT5ZC R-01 (x2) 051415 +7 1687 CQ UT5ZC KN57 (x2) 051500 -20 1689 UT5ZC EB4FOG -02 051515 +5 1687 CQ UT5ZC KN57 051545 +14 1687 IZ4AIF UT5ZC -12 (x2) 051645 +8 1687 CQ UT5ZC KN57 051715 +10 1687 OE8RPK UT5ZC -16 051745 +15 1687 CQ UT5ZC KN57 (x3) 051900 -18 1688 UT5ZC SM7DVO JO76 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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