K5TU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving K5TU, decoded by SO8OO in southeastern Poland. 618 related FT8 messages, 23 CQ messages, observed on 80m, 40m, 20m, 10m, across 28 UTC dates. Heard between 2026-04-21 and 2026-07-21.
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 K5TU worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by K5TU
Approximate centre of EM10, decoded 2026-07-20 02:25 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 | K5TU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-21 02:50 | 40m | - / -13 | OH2CLX | -10 / - | 4 | ✓ Closing fragment |
| 07-21 02:43 | 40m | -22 / -9 | S55DX | -4 / - | 3 | ✓ Closing observed |
| 07-20 02:25 | 40m | -9 / - | <...> | - / -20 | 5 | Partial capture |
| 07-20 02:01 | 40m | -18 / - | TF3VS | - / - | 7 | Partial capture |
| 07-20 01:43 | 40m | -16 / - | TF3VS | - / - | 8 | Partial capture |
| 07-19 01:16 | 20m | -11 / - | G8KHF | - / -11 | 4 | ✓ Closing fragment |
| 07-17 03:05 | 40m | - / -5 | ON5ZZ | -8 / - | 3 | ✓ Closing fragment |
| 07-17 02:50 | 40m | - / - | R6LQU | -20 / - | 3 | Partial capture |
| 07-17 02:47 | 40m | -20 / -13 | R7KDW | -12 / -20 | 6 | ✓ Full exchange observed |
| 07-17 02:46 | 40m | -21 / +1 | MW9LQA | -20 / - | 3 | ✓ Closing observed |
| 07-17 02:42 | 20m | - / -4 | RX9ABI | -5 / - | 2 | Partial capture |
| 07-17 02:39 | 20m | - / -15 | R8CIS | -20 / - | 2 | Partial capture |
| 07-17 02:34 | 20m | - / - | RX9ABI | -6 / - | 4 | Partial capture |
| 07-17 02:29 | 20m | - / - | UA9SAV | -2 / - | 2 | ✓ Closing fragment |
| 07-15 00:58 | 20m | - / - | RD6OZ | -18 / - | 2 | Partial capture |
| 07-11 03:37 | 20m | -16 / - | 7Z1CB | - / - | 2 | Partial capture |
| 07-11 03:37 | 20m | - / - | RX9ABI | -20 / - | 2 | Partial capture |
| 07-11 03:36 | 20m | -16 / - | KO1U | - / -14 | 2 | ✓ Closing fragment |
| 07-11 03:33 | 20m | -17 / - | SV2KD | - / -13 | 2 | ✓ Closing fragment |
| 07-11 03:32 | 20m | -18 / - | SQ2BXI | - / -16 | 2 | ✓ Closing fragment |
| 07-11 03:32 | 20m | - / - | RX9ABI | -9 / - | 3 | Partial capture |
| 07-11 03:30 | 20m | -17 / -4 | YO4NF | -19 / -10 | 4 | ✓ Full exchange observed |
| 07-11 03:29 | 20m | -21 / - | DF2MC | -2 / -7 | 2 | ✓ Closing observed |
| 07-11 03:16 | 20m | -20 / - | UW8SM | - / -18 | 4 | ✓ Closing fragment |
| 07-11 03:14 | 20m | -19 / - | HB9TIH | - / -7 | 2 | ✓ Closing fragment |
| 07-11 03:13 | 20m | -21 / - | R1AP | - / -5 | 2 | Partial capture |
| 07-11 03:12 | 20m | - / - | RA3RDN | -18 / - | 2 | Partial capture |
| 07-11 03:10 | 20m | -20 / - | DL9KM | -9 / -9 | 6 | ✓ Full exchange observed |
| 07-11 03:10 | 20m | - / -6 | YO4NF | -14 / - | 2 | Partial capture |
| 07-11 03:05 | 20m | -20 / - | SP3HIF | - / -9 | 4 | Partial capture |
| 07-11 02:51 | 40m | - / -22 | PI4DX | +4 / - | 4 | ✓ Closing fragment |
| 07-10 02:52 | 40m | - / - | RA3ALC | -14 / - | 2 | Partial capture |
| 07-10 02:43 | 40m | - / -2 | IZ8DBJ | -9 / - | 3 | ✓ Closing fragment |
| 07-10 02:34 | 40m | - / - | R2EC | -3 / - | 2 | Partial capture |
| 07-09 02:03 | 40m | - / -17 | RN6MA | -16 / - | 4 | Partial capture |
| 07-09 01:38 | 40m | - / -18 | R4FDQ | -18 / - | 2 | Partial capture |
| 06-26 02:32 | 20m | -7 / - | LZ1ZF | - / - | 3 | Partial capture |
| 06-26 02:28 | 20m | -8 / - | K0LLT | - / -2 | 2 | ✓ Closing fragment |
| 06-26 02:27 | 20m | - / - | RX3ASQ | -16 / - | 2 | Partial capture |
| 06-26 02:25 | 20m | - / +2 | SV5BYP | -22 / - | 2 | ✓ Closing fragment |
| 06-26 02:23 | 20m | -10 / - | UF5F | - / -15 | 2 | ✓ Closing fragment |
| 06-26 02:21 | 20m | - / - | RV3ZN | 0 / - | 2 | Partial capture |
| 06-26 02:20 | 20m | - / - | EW4DX | -11 / - | 3 | Partial capture |
| 06-26 02:17 | 20m | -9 / - | TA4INO | - / -23 | 3 | ✓ Closing fragment |
| 06-26 02:12 | 20m | -15 / - | YO9HP | - / -7 | 2 | ✓ Closing fragment |
| 06-26 02:11 | 20m | -15 / -15 | UB3GER | -12 / -5 | 4 | ✓ Full exchange observed |
| 06-26 02:11 | 20m | -14 / - | SP2RG | - / -16 | 2 | ✓ Closing fragment |
| 06-26 02:05 | 20m | -12 / - | S55X | - / -13 | 2 | ✓ Closing fragment |
| 06-26 01:58 | 20m | -16 / - | PA3KUS | - / -19 | 2 | ✓ Closing fragment |
| 06-26 01:57 | 20m | -15 / - | W9CSO | - / -23 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 020430 -19 2067 TF3VS K5TU EM10 022545 -8 627 <...> K5TU EM10 (x5) 024330 -4 990 K5TU S55DX -09 (x2) 024415 -22 1950 S55DX K5TU 73 024930 -7 1952 K5TU RZ6L KN97 025030 -8 2069 K5TU OH2CLX -13 (x4) 025300 -13 678 K5TU OK1WE +04
UTC dB Audio Message 023600 -7 622 K5TU RX9ABI MO05 (x2) 023900 -20 1867 K5TU R8CIS -15 (x2) 023930 -9 644 K5TU RX9ABI MO05 (x3) 011615 -9 1262 G8KHF K5TU EM10 (x4) 020600 -23 1638 VP2MAA K5TU EM10 005545 -18 1826 PD1HPB K5TU -06 005715 -18 1826 YU1LD K5TU RR73 005730 -12 1826 K5TU R2DN KO95
UTC dB Audio Message 023600 -13 2205 K5TU CP7DX -06 030815 -7 1444 K5TU EA8DO +07 (x2) 030915 +18 2595 K5TU 9A5TW JN75 030915 -7 1443 K5TU EA8DO +11 030945 +16 2595 K5TU 9A5TW JN75 030945 -11 1443 K5TU EA8DO RR73 031045 -3 1774 K5TU IU8SDA JN71 (x2) 031730 -16 1142 K5TU HB9ALO JN45 (x2)
UTC dB Audio Message 200645 -12 553 K5TU EA1DZD IN53 (x3)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.