UZ5CA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UZ5CA, decoded by SO8OO in southeastern Poland. 1,392 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, across 68 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-13.
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 1,392 FT8 messages attributed to UZ5CA as the transmitting token by decoded message structure across 68 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 20 m (22%) and 160 m (13%). The busiest six-hour window was 17:00-23:00 UTC, containing 46% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-10-13 16:46 UTC
Observed FT8 message patterns
- Attributed sample
- 1,392 messages
- Active dates
- 68 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -15.8 to +5.1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 142, moderate (-15 to -9 dB) 374, strong (≥ -8 dB) 876.
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 UZ5CA 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 UZ5CA
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
- KN58 · 28 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 687 km (approx.)
- Last such locator decoded
- 2026-10-08 05:28 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 | UZ5CA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-14 22:36 | 40m | - / - | RZ4FWA | -14 / - | 3 | Partial capture |
| 10-14 22:23 | 40m | - / -9 | SV4FGT | -15 / - | 3 | ✓ Closing fragment |
| 10-14 19:37 | 40m | - / -3 | F1TIO | -2 / - | 2 | ✓ Closing fragment |
| 10-11 04:44 | 40m | - / 0 | SV5BYP | -6 / - | 2 | ✓ Closing fragment |
| 10-11 04:29 | 40m | - / -2 | Z62NS | -10 / - | 2 | ✓ Closing fragment |
| 10-11 04:21 | 40m | - / -13 | SV5AZK | -18 / - | 2 | ✓ Closing fragment |
| 10-10 16:02 | 40m | -12 / - | S79VU | - / -16 | 2 | Partial capture |
| 10-10 15:55 | 40m | -13 / - | S79VU | - / -18 | 3 | Partial capture |
| 10-09 21:53 | 160m | -15 / -3 | LZ2IP | +21 / - | 3 | ✓ Closing observed |
| 10-09 16:45 | 40m | -4 / - | YD1EQN | - / -19 | 2 | Partial capture |
| 10-08 16:14 | 40m | -5 / - | SQ8AA | - / -1 | 11 | ✓ Closing fragment |
| 10-08 16:13 | 40m | -10 / -7 | 4O/DL1FDH | -16 / -13 | 2 | Partial capture |
| 10-08 05:34 | 40m | -24 / -3 | PA3CPS | -5 / - | 4 | ✓ Closing observed |
| 10-08 05:22 | 40m | - / - | DL9KM | -8 / - | 6 | Partial capture |
| 10-08 05:20 | 40m | -2 / - | N5YT | - / -20 | 6 | ✓ Closing fragment |
| 10-08 05:18 | 40m | +3 / -6 | F4FTV | -12 / -13 | 4 | ✓ Full exchange observed |
| 10-08 05:16 | 40m | +2 / 0 | IK4JPP | +1 / 0 | 5 | ✓ Full exchange observed |
| 10-08 05:15 | 40m | +4 / - | M9PAS | -16 / - | 3 | ✓ Closing observed |
| 10-08 05:10 | 40m | -5 / - | CU3EM | - / -7 | 11 | Partial capture |
| 10-07 18:17 | 160m | -17 / - | SM2LKW | - / -14 | 2 | Partial capture |
| 10-07 18:16 | 160m | -12 / - | IT9JNR | - / -12 | 2 | Partial capture |
| 10-07 18:14 | 160m | -19 / - | SM2LKW | - / -17 | 2 | Partial capture |
| 10-07 18:05 | 160m | - / 0 | YO5USA | -12 / - | 2 | ✓ Closing fragment |
| 10-07 17:38 | 40m | -6 / - | SP4BB | - / -16 | 3 | Partial capture |
| 10-07 17:35 | 40m | 0 / - | LA1PHA | - / -1 | 2 | ✓ Closing fragment |
| 10-07 17:25 | 40m | -2 / - | LP6TMY/R | - / -24 | 2 | Partial capture |
| 10-07 17:22 | 40m | -4 / - | VK4LK | - / -20 | 3 | Partial capture |
| 10-07 16:00 | 40m | -1 / - | 3B8FA | - / -18 | 6 | Partial capture |
| 10-07 15:59 | 40m | -6 / - | YD4AWV | - / -20 | 2 | Partial capture |
| 10-07 05:59 | 40m | - / -7 | PA0JDF | -8 / - | 4 | ✓ Closing fragment |
| 10-07 05:51 | 40m | - / -16 | YL3GGT | -16 / - | 2 | ✓ Closing fragment |
| 10-07 04:53 | 40m | -11 / - | YO7CKQ | - / +3 | 3 | ✓ Closing fragment |
| 10-07 04:52 | 40m | - / - | IQ0YA | -17 / - | 3 | ✓ Closing fragment |
| 10-07 04:30 | 40m | - / -6 | SV1EKI | -14 / - | 2 | Partial capture |
| 10-07 04:26 | 40m | - / - | UA4FKT | -12 / - | 2 | Partial capture |
| 10-07 04:17 | 40m | -2 / - | OA4ENG | - / -15 | 2 | Partial capture |
| 10-07 04:10 | 40m | -4 / - | CO8CF | - / -19 | 4 | Partial capture |
| 10-07 04:08 | 40m | -2 / -1 | CT3MD | -14 / -4 | 4 | ✓ Full exchange observed |
| 10-07 04:07 | 40m | +4 / - | TA3XEE | - / -19 | 2 | ✓ Closing fragment |
| 10-07 04:06 | 40m | -4 / - | VE3DZ | - / -11 | 2 | ✓ Closing fragment |
| 10-07 04:05 | 40m | +5 / - | CX4BAN | - / -14 | 2 | ✓ Closing fragment |
| 10-06 17:22 | 40m | -8 / - | EA1C | -4 / -14 | 3 | ✓ Closing observed |
| 10-06 07:51 | 40m | -10 / - | IU3JOY | - / - | 2 | Partial capture |
| 10-04 20:16 | 40m | - / -8 | EA8Y | -6 / - | 2 | ✓ Closing fragment |
| 10-04 19:47 | 40m | -4 / - | 9K2MP | - / -2 | 2 | Partial capture |
| 10-04 19:46 | 40m | -4 / - | 5P1KZX | - / -3 | 2 | ✓ Closing fragment |
| 10-04 19:19 | 40m | -13 / - | 4O4DB | -16 / -3 | 3 | ✓ Closing observed |
| 10-04 18:33 | 40m | -2 / - | 7Z1MM | - / - | 2 | ✓ Closing fragment |
| 10-04 18:31 | 40m | -7 / - | VU3IHP | - / -20 | 3 | Partial capture |
| 10-04 18:30 | 40m | -2 / - | 7Z1MM | - / -19 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 042515 -16 1562 9H6C UZ5CA -15 042945 -7 1163 UZ5CA Z62NS R-02 (x2) 044415 -7 617 UZ5CA SV5BYP R+00 (x2) 045045 -7 2738 UZ5CA DC9TS JO31 164645 -8 1684 TA5DOB UZ5CA -15 193715 -3 2826 UZ5CA F1TIO R-03 (x2) 222315 -18 1370 UZ5CA SV4FGT KM19 (x3) 223645 -14 1773 UZ5CA RZ4FWA LO23 (x3)
UTC dB Audio Message 191945 -17 1090 UZ5CA RU3FM KO94 191945 -12 2544 UZ5CA PA3DUU JO21 192015 -19 1090 UZ5CA RU3FM KO94 180500 -13 1375 UZ5CA YO5USA R+00 (x2) 181215 -22 200 SV3GKU UZ5CA +02 181430 -19 2182 SM2LKW UZ5CA -17 (x2) 181615 -15 1075 IT9JNR UZ5CA -12 (x2) 181730 -19 2182 SM2LKW UZ5CA -14 (x2) 215300 +22 850 UZ5CA LZ2IP R-03 215315 -15 852 LZ2IP UZ5CA RR73 215330 +20 850 UZ5CA LZ2IP RR73
UTC dB Audio Message 183345 -20 723 OZ1KEF UZ5CA -15 181300 +10 2642 4X1UF UZ5CA -12 181500 +4 2707 LA2JKA UZ5CA -19 (x2) 184130 -14 199 5P1KZX UZ5CA -14 (x7) 184900 -16 2454 ES2AJ UZ5CA -07 (x2) 165345 -24 740 9V1YC UZ5CA -17 165500 -7 1234 LY7M UZ5CA -05
UTC dB Audio Message 153445 +8 2729 7K1CPT UZ5CA RR73 (x2) 153545 +11 2729 CQ DX UZ5CA KN58 153600 -5 2727 UZ5CA 7K1CPT 73 174430 -9 1761 UZ5CA 8Z1IT 73 044945 -7 271 UZ5CA ZL1OGX R-17 (x2) 054200 -5 2879 UZ5CA F5PBG IN78 (x3) 054300 -8 908 UZ5CA 9H1FJ 73 054330 -3 2878 UZ5CA F5PBG IN78 054600 -4 2745 UZ5CA F5IXN JN23 (x3)
UTC dB Audio Message 074300 -24 1591 UZ5CA F4HKP R-03 081800 -18 1404 UZ5CA IT9ZIR R-12 082315 -11 1590 UZ5CA F4FSY -02 (x2) 073945 +1 254 UZ5CA LZ2VQ KN23 (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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