K4SJR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving K4SJR, decoded by SO8OO in southeastern Poland. 307 related FT8 messages, 19 CQ messages, observed on 40m, 20m, 10m, across 21 UTC dates. Heard between 2026-05-27 and 2026-08-23.
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 K4SJR worked most often, as logged from our receiver:
Activity Heatmap
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 | K4SJR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-24 00:35 | 40m | - / - | G1LQT | -8 / - | 2 | Partial capture |
| 08-24 00:35 | 40m | - / - | SP1ADT | -1 / - | 2 | Partial capture |
| 08-24 00:34 | 40m | - / - | F4BYA | +8 / - | 4 | Partial capture |
| 08-24 00:31 | 40m | - / - | IK4LZH | +6 / - | 4 | Partial capture |
| 08-24 00:28 | 40m | - / -13 | F5HNQ | -3 / - | 3 | ✓ Closing fragment |
| 08-23 01:30 | 40m | - / - | PF26GP | -7 / - | 5 | ✓ Closing fragment |
| 08-23 01:29 | 40m | - / - | RV6F | -8 / - | 5 | Partial capture |
| 08-23 01:29 | 40m | - / - | IZ8DBJ | 0 / - | 3 | Partial capture |
| 08-23 01:14 | 40m | - / - | IK4LZH | +2 / - | 4 | Partial capture |
| 08-23 01:12 | 40m | - / -15 | R7DX | +12 / - | 3 | ✓ Closing fragment |
| 08-23 01:06 | 40m | - / -23 | DK7UY | -4 / - | 6 | ✓ Closing fragment |
| 08-23 01:03 | 40m | - / - | IZ8DBJ | -1 / - | 3 | Partial capture |
| 08-23 00:59 | 40m | - / -12 | EA5HM | -15 / - | 4 | ✓ Closing fragment |
| 08-23 00:57 | 40m | - / -23 | UA3GDJ | 0 / - | 3 | ✓ Closing fragment |
| 08-23 00:57 | 40m | - / -18 | MM0KQC | -15 / - | 3 | Partial capture |
| 08-23 00:53 | 40m | - / - | IZ8DBJ | +5 / - | 3 | Partial capture |
| 08-23 00:51 | 40m | - / - | LZ3CB | +4 / - | 3 | Partial capture |
| 08-23 00:48 | 40m | - / - | IZ8DBJ | +10 / - | 3 | Partial capture |
| 08-22 21:34 | 20m | - / - | KJ4KFJ | -24 / - | 2 | Partial capture |
| 08-22 21:21 | 20m | - / -23 | F5NNN | -8 / - | 3 | ✓ Closing fragment |
| 08-21 01:12 | 40m | - / - | EA5HM | -5 / - | 2 | Partial capture |
| 08-08 20:40 | 20m | - / -16 | F5RRS | -4 / - | 3 | ✓ Closing fragment |
| 08-02 03:49 | 40m | - / - | PB0AKY | -22 / - | 2 | Partial capture |
| 08-02 03:48 | 40m | - / -15 | DH5BM | -17 / - | 3 | ✓ Closing fragment |
| 07-31 14:47 | 20m | - / +3 | F1ODM | -19 / - | 3 | ✓ Closing fragment |
| 07-31 14:43 | 20m | - / -2 | F1ODM | -20 / - | 3 | Partial capture |
| 07-31 02:33 | 40m | - / - | SV1BLD | -2 / - | 2 | Partial capture |
| 07-31 02:33 | 40m | - / - | DG5PW | -24 / - | 2 | Partial capture |
| 07-28 01:41 | 40m | - / - | OO0O | -10 / - | 2 | Partial capture |
| 07-28 01:26 | 40m | - / -16 | UA3SNB | -16 / - | 2 | Partial capture |
| 07-28 01:09 | 40m | - / - | DH5BM | -20 / - | 7 | Partial capture |
| 07-24 02:45 | 40m | - / - | R7DX | +4 / - | 2 | Partial capture |
| 07-22 04:25 | 40m | - / -14 | DG4SCG | -10 / - | 2 | ✓ Closing fragment |
| 07-22 04:23 | 40m | - / -9 | IV3GOW | -17 / - | 2 | ✓ Closing fragment |
| 07-22 04:11 | 40m | - / - | IU4DTV | -15 / - | 3 | ✓ Closing fragment |
| 07-22 04:05 | 40m | - / -10 | DJ0MAB | -15 / - | 4 | Partial capture |
| 07-22 04:01 | 40m | - / -10 | DL8WEM | -4 / - | 3 | ✓ Closing fragment |
| 07-22 03:58 | 40m | - / -12 | DL8TV | +2 / - | 4 | Partial capture |
| 07-22 03:57 | 40m | - / - | DL6UJ | -18 / - | 4 | Partial capture |
| 07-18 02:38 | 40m | - / -11 | UT7UJ | -6 / - | 2 | Partial capture |
| 07-18 02:21 | 40m | - / -19 | UT7UJ | -6 / - | 3 | Partial capture |
| 07-18 02:07 | 40m | - / -11 | UT7UJ | -3 / - | 5 | Partial capture |
| 07-18 01:56 | 40m | - / -10 | UT7UJ | -7 / - | 3 | Partial capture |
| 07-18 01:54 | 40m | - / - | IK3SSW | -4 / - | 4 | Partial capture |
| 07-07 02:09 | 40m | - / - | SV5BYP | -22 / - | 2 | Partial capture |
| 07-06 00:56 | 40m | - / -23 | <...> | -20 / - | 2 | Partial capture |
| 07-06 00:54 | 40m | - / - | PI4DX | +1 / - | 3 | Partial capture |
| 07-06 00:53 | 40m | - / - | F4FPR | -18 / - | 2 | Partial capture |
| 07-06 00:39 | 40m | - / -16 | EC3A | -22 / - | 2 | Partial capture |
| 07-04 01:41 | 40m | - / - | DK7ZT | -14 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 003115 +3 439 K4SJR IK4LZH JN54 (x4) 003415 +6 2881 K4SJR F4BYA JN19 (x3) 003545 -2 1640 K4SJR SP1ADT JO83 003545 -6 1303 K4SJR G1LQT RRR 003545 +11 2881 K4SJR F4BYA JN19 003615 -9 1303 K4SJR G1LQT RRR 003615 +0 1640 K4SJR SP1ADT JO83 003800 -4 1069 K4SJR EB1LA IN73 004430 -2 1639 K4SJR UA6CE -20 004800 -20 1639 K4SJR IN3IZQ JN56
UTC dB Audio Message 144800 -15 1675 K4SJR F1ODM +03 (x2) 204045 -5 2021 K4SJR F5RRS JN36 (x3) 211745 +2 279 K4SJR EA5ITW -14 (x2) 212100 -5 1089 K4SJR F5NNN IN94 212130 -13 329 K4SJR N1NRL FN41 212130 -7 1089 K4SJR F5NNN R-23 (x2) 212630 -12 330 K4SJR N1NRL FN41 213030 -12 641 K4SJR R2AL KO85 213400 -23 1484 K4SJR KJ4KFJ EN74 (x2)
UTC dB Audio Message 180030 -7 1001 K4SJR PY4ZDC -14 (x3)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.