UA3ZSI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UA3ZSI, decoded by SO8OO in southeastern Poland. 54 related FT8 messages, observed on 160m, 80m, 40m, 20m, across 6 UTC dates. Heard between 2026-05-24 and 2026-08-14.
These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.
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Overview
Frequent QSO partners observed at SO8OO
Stations UA3ZSI worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by UA3ZSI
Approximate centre of KO90, decoded 2026-08-23 20:16 UTC. A transmitted locator is not proof of the operator's permanent location.
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 | UA3ZSI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-23 20:15 | 160m | +2 / - | <...> | - / - | 3 | Partial capture |
| 08-23 20:06 | 40m | +4 / - | TN8GD | - / -22 | 4 | ✓ Closing fragment |
| 08-14 20:01 | 160m | -5 / - | OH2TWI | - / - | 4 | Partial capture |
| 08-14 19:58 | 160m | -6 / -1 | RU4SO | -10 / -9 | 7 | ✓ Full exchange observed |
| 08-14 19:55 | 160m | -9 / -14 | R4NBV | -12 / -19 | 6 | ✓ Full exchange observed |
| 08-14 19:52 | 160m | -5 / -2 | EU3A | +16 / -5 | 6 | ✓ Full exchange observed |
| 08-14 19:46 | 160m | -3 / - | R50RKZ | - / 0 | 8 | ✓ Closing fragment |
| 08-14 19:44 | 160m | -1 / - | RX3T | - / -23 | 4 | ✓ Closing fragment |
| 08-14 19:32 | 160m | -4 / -15 | R7KQ | +7 / - | 8 | ✓ Closing observed |
| 08-14 19:30 | 160m | -2 / 0 | R2DGN | -12 / -20 | 5 | ✓ Full exchange observed |
| 08-14 19:27 | 160m | -6 / - | RA6LTD | - / -14 | 4 | ✓ Closing fragment |
| 08-14 19:26 | 160m | -10 / -5 | RT2P | -10 / -19 | 4 | ✓ Full exchange observed |
| 08-14 19:22 | 160m | -3 / - | OI5AY | - / -25 | 5 | Partial capture |
| 08-14 19:20 | 160m | -3 / - | UA4FOH | -16 / -17 | 4 | ✓ Closing observed |
| 08-14 19:15 | 160m | -2 / -6 | RU3XU | -1 / -15 | 4 | ✓ Full exchange observed |
| 08-14 19:13 | 160m | - / -9 | RT2P | -10 / - | 3 | Partial capture |
| 08-14 19:12 | 160m | -1 / +7 | RA3QM | -19 / -14 | 4 | ✓ Full exchange observed |
| 08-14 19:10 | 160m | -1 / -2 | UA3LNM | -1 / -15 | 9 | ✓ Full exchange observed |
| 08-14 19:09 | 160m | -3 / -4 | RT2P | -7 / - | 4 | Partial capture |
| 08-14 19:03 | 160m | -2 / -6 | RC1TF | -11 / -22 | 10 | ✓ Full exchange observed |
| 08-10 19:58 | 20m | -20 / - | IS0KNG | - / - | 2 | Partial capture |
| 08-10 19:44 | 20m | -20 / - | <...> | - / - | 2 | Partial capture |
| 08-10 19:39 | 20m | -20 / - | R9WXK | - / -15 | 2 | ✓ Closing fragment |
| 08-10 19:31 | 160m | -8 / +7 | R5BS | -6 / -13 | 5 | ✓ Full exchange observed |
| 08-10 19:28 | 160m | -3 / - | RA6ATZ | -12 / -14 | 4 | ✓ Closing observed |
| 08-10 19:27 | 160m | -5 / - | R4DD | - / -13 | 3 | ✓ Closing fragment |
| 07-31 04:07 | 40m | -16 / - | OA4ENG | - / - | 2 | Partial capture |
| 07-31 03:55 | 40m | -15 / - | OA4ENG | - / - | 7 | Partial capture |
| 07-31 03:53 | 40m | -15 / - | RW9WJ | - / -3 | 2 | Partial capture |
| 07-31 03:48 | 40m | -18 / - | T41FCR | - / - | 6 | Partial capture |
| 07-30 20:21 | 160m | -2 / - | HB9HFR | - / - | 8 | Partial capture |
| 07-30 20:19 | 160m | -2 / -17 | F5RRS | -7 / -4 | 5 | ✓ Full exchange observed |
| 07-30 20:14 | 160m | 0 / -16 | R2LAF/P | -16 / -7 | 13 | ✓ Full exchange observed |
| 07-30 20:12 | 160m | +2 / - | RA3TOS | - / -18 | 2 | ✓ Closing fragment |
| 07-30 20:08 | 160m | +3 / -17 | S52R | -16 / -13 | 9 | Partial capture |
| 07-30 20:07 | 160m | +3 / - | F4DVO | - / -15 | 3 | ✓ Closing fragment |
| 07-30 20:04 | 160m | +4 / - | <...> | - / +3 | 2 | Partial capture |
| 07-30 19:32 | 160m | - / - | R8LCX | -9 / - | 2 | Partial capture |
| 07-30 19:31 | 160m | -4 / - | R6ML | -9 / +1 | 4 | ✓ Full exchange observed |
| 07-30 19:30 | 160m | 0 / - | UD8S | - / -7 | 3 | ✓ Closing fragment |
| 06-02 19:34 | 20m | - / -16 | 8Q7PR | -6 / - | 2 | ✓ Closing fragment |
| 05-31 05:31 | 20m | -16 / - | R0ADA | -9 / - | 2 | ✓ Closing observed |
| 05-31 05:25 | 20m | -15 / -8 | R0ADA | -8 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 195715 -12 2036 R4NBV UA3ZSI 73 195830 -5 2036 RU4SO UA3ZSI KO90 (x3) 195945 -12 1076 UA3ZSI RU4SO -01 200000 -7 2036 RU4SO UA3ZSI R-09 200015 -9 1077 UA3ZSI RU4SO RR73 200030 -5 2036 RU4SO UA3ZSI 73 200145 -4 2036 OH2TWI UA3ZSI KO90 (x4) 201515 +3 2013 <...> UA3ZSI KO90 (x3)
UTC dB Audio Message 035330 -15 2195 RW9WJ UA3ZSI -03 (x2) 035545 -13 2195 OA4ENG UA3ZSI KO90 (x9) 200645 +1 2050 TN8GD UA3ZSI KO90 (x4)
UTC dB Audio Message 052800 -8 1935 UA3ZSI R0ADA -08 (x2) 053115 -16 2065 R0ADA UA3ZSI 73 192915 -8 1644 UA3ZSI 8Q7PR -14 (x3) 184930 -5 410 UA3ZSI TT1GD -10 (x2) 193945 -17 2006 R9WXK UA3ZSI R-15 (x2) 194215 -8 2504 EA8UP UA3ZSI R-13 194445 -19 2033 <...> UA3ZSI KO90 (x2) 195830 -20 2020 IS0KNG UA3ZSI KO90 (x2)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.