IZ4TSV — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ4TSV, decoded by SO8OO in southeastern Poland. 327 related FT8 messages, 180 CQ messages, observed on 40m, 20m, 10m, across 27 UTC dates. Heard between 2026-05-22 and 2026-08-20.
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 IZ4TSV worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by IZ4TSV
Approximate centre of JN54, decoded 2026-08-19 04:42 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 | IZ4TSV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-20 04:38 | 20m | - / -12 | R8AGW | -8 / - | 2 | Partial capture |
| 08-20 04:30 | 20m | - / -18 | TJ1GD | -8 / - | 3 | ✓ Closing fragment |
| 08-19 04:41 | 40m | -13 / - | W4WFC | - / - | 3 | Partial capture |
| 08-19 04:39 | 40m | -12 / - | ND9M | - / -13 | 3 | ✓ Closing fragment |
| 08-19 04:36 | 40m | -8 / -23 | Z34K | -12 / 0 | 4 | ✓ Full exchange observed |
| 08-14 20:47 | 40m | -15 / - | EU3LA | -14 / - | 2 | ✓ Closing observed |
| 08-14 20:40 | 40m | -17 / 0 | DG5SMY | -2 / +8 | 3 | ✓ Full exchange observed |
| 08-14 20:33 | 40m | -12 / - | DL80NRW | - / +5 | 2 | Partial capture |
| 08-14 20:28 | 40m | -16 / +1 | GJ0KYZ | -16 / - | 3 | ✓ Closing observed |
| 08-03 17:56 | 20m | -7 / - | JF1KWI | - / -16 | 3 | ✓ Closing fragment |
| 08-03 17:54 | 20m | +4 / - | RZ3Z/P | - / -6 | 2 | Partial capture |
| 08-03 17:53 | 20m | -10 / -6 | DL8YBL | -13 / -18 | 9 | Partial capture |
| 08-03 17:51 | 20m | 0 / -16 | DL2MEL | -11 / +3 | 5 | ✓ Full exchange observed |
| 08-03 17:46 | 20m | -6 / - | <...> | - / -10 | 2 | Partial capture |
| 08-03 17:44 | 20m | - / - | DF0KK | -4 / - | 2 | ✓ Closing fragment |
| 08-03 17:44 | 20m | - / - | UR5XEJ | -18 / - | 2 | Partial capture |
| 08-03 17:39 | 20m | - / - | ON7AN | -12 / - | 2 | ✓ Closing fragment |
| 08-03 17:36 | 20m | -18 / - | PD4RJ | - / -1 | 3 | ✓ Closing fragment |
| 07-22 02:55 | 20m | -11 / - | UA9QFF | - / 0 | 10 | Partial capture |
| 07-22 02:47 | 20m | -8 / - | TJ1GD/P | - / - | 2 | Partial capture |
| 07-20 07:31 | 10m | -12 / - | R1BED | - / +10 | 2 | ✓ Closing fragment |
| 07-20 07:28 | 10m | - / - | PD5WA | -15 / - | 2 | ✓ Closing fragment |
| 07-20 07:26 | 10m | -16 / - | UA4FEN | - / -5 | 2 | ✓ Closing fragment |
| 07-20 07:24 | 10m | - / - | PD5WA | -15 / - | 2 | Partial capture |
| 07-17 10:37 | 10m | - / -1 | LZ4VR | -16 / - | 2 | ✓ Closing fragment |
| 07-14 21:56 | 20m | -10 / - | JA3HBR | - / -8 | 2 | ✓ Closing fragment |
| 07-14 21:54 | 20m | -11 / - | OH6NIO | - / -2 | 2 | ✓ Closing fragment |
| 07-14 21:49 | 20m | -5 / - | BD4UJ | - / +1 | 3 | ✓ Closing fragment |
| 07-14 21:46 | 20m | -6 / - | JP7BRB | - / -7 | 2 | ✓ Closing fragment |
| 07-14 21:44 | 20m | -4 / - | BG5BNW | - / -17 | 2 | ✓ Closing fragment |
| 07-03 21:14 | 40m | - / - | PA1AA | -18 / - | 3 | ✓ Closing fragment |
| 06-26 04:53 | 20m | - / -17 | DL1UDO | -7 / - | 2 | ✓ Closing fragment |
| 06-26 04:51 | 20m | - / - | DL6UJ | -15 / - | 2 | ✓ Closing fragment |
| 06-26 04:39 | 20m | -22 / - | ON1JP | - / -13 | 2 | Partial capture |
| 06-22 16:37 | 10m | -7 / - | PD0HLA | - / - | 2 | ✓ Closing fragment |
| 06-22 16:33 | 10m | -2 / - | YO4DWD | - / -6 | 2 | ✓ Closing fragment |
| 06-22 16:31 | 10m | -6 / - | YO2AA | - / +7 | 2 | ✓ Closing fragment |
| 06-22 16:26 | 10m | -4 / - | LA2GCA | - / -23 | 2 | ✓ Closing fragment |
| 06-22 16:25 | 10m | -2 / -14 | RA6OY | +4 / -15 | 8 | ✓ Full exchange observed |
| 06-20 02:47 | 40m | -4 / +6 | G3TKT | -14 / -3 | 5 | ✓ Full exchange observed |
| 06-20 02:45 | 40m | -2 / -17 | IQ4JO | +15 / -7 | 5 | ✓ Full exchange observed |
| 06-20 02:40 | 40m | -3 / - | ON4MAP | -24 / -16 | 3 | ✓ Closing observed |
| 06-20 02:36 | 40m | -4 / - | PD9FLX | - / -5 | 2 | ✓ Closing fragment |
| 06-20 02:33 | 40m | -6 / - | R9AL | - / -10 | 2 | ✓ Closing fragment |
| 06-20 02:31 | 40m | -4 / - | SP9WLC | - / - | 2 | ✓ Closing fragment |
| 06-20 02:27 | 40m | -2 / - | R6ZAJ | - / +1 | 3 | ✓ Closing fragment |
| 06-20 02:23 | 40m | -4 / - | G7KFQ | -14 / -7 | 3 | ✓ Closing observed |
| 06-20 02:17 | 40m | -4 / - | SP6AMI | - / - | 6 | ✓ Closing fragment |
| 06-20 02:12 | 40m | -6 / - | RZ4FWA | - / -11 | 3 | ✓ Closing fragment |
| 06-20 02:08 | 40m | -4 / - | SP1EG | - / +8 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 175630 -5 2171 JF1KWI IZ4TSV -16 (x3) 175745 -13 1644 IZ4TSV DL8YBL JO31 (x2) 175830 -6 2171 DL8YBL IZ4TSV -18 175845 -14 1650 IZ4TSV DL8YBL JO31 (x2) 180100 -13 2171 DL8YBL IZ4TSV -14 042715 -9 558 IZ4TSV R3PLN/P -11 043030 -6 606 IZ4TSV TJ1GD -18 (x3) 043830 -7 2479 IZ4TSV R8AGW R-12 (x2)
UTC dB Audio Message 043245 -14 2087 CQ IZ4TSV JN54 (x5) 043615 -12 288 Z34K IZ4TSV JN54 043800 -12 288 IZ4TSV Z34K -23 043815 -3 288 Z34K IZ4TSV R+00 (x2) 043915 -13 2287 ND9M IZ4TSV JN54 (x3) 044145 -14 1304 W4WFC IZ4TSV JN54 (x3)
UTC dB Audio Message 163800 -8 2146 PD0HLA IZ4TSV RR73 103715 -18 1643 IZ4TSV LZ4VR R-01 (x2) 072245 -17 2137 CQ IZ4TSV JN54 072400 -18 1551 IZ4TSV PD5WA JO22 (x2) 072615 -23 2137 CQ IZ4TSV JN54 072645 -18 2137 UA4FEN IZ4TSV R-05 (x2) 072830 -15 1550 IZ4TSV PD5WA R+11 (x2) 073045 -16 2137 CQ IZ4TSV JN54 073115 -13 2137 R1BED IZ4TSV R+10 (x2) 073400 -13 2138 IZ4TSV R3PLA KO84
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.