JY4CH — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JY4CH, decoded by SO8OO in southeastern Poland. 171 related FT8 messages, observed on 40m, 20m, 10m, across 6 UTC dates. Heard between 2026-05-31 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 JY4CH 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 | JY4CH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-21 01:38 | 40m | -11 / - | RA3LCI | - / -16 | 3 | ✓ Closing fragment |
| 08-21 01:37 | 40m | -10 / - | IZ8PPI | - / -12 | 2 | Partial capture |
| 08-21 01:35 | 40m | -10 / - | KS9J | -12 / -16 | 3 | ✓ Closing observed |
| 08-21 01:34 | 40m | -7 / - | IU1VJP | -17 / - | 4 | ✓ Closing observed |
| 08-21 01:32 | 40m | -12 / - | UN9LCW | - / -15 | 2 | Partial capture |
| 08-21 01:31 | 40m | -12 / - | WP4TUN | - / -18 | 2 | Partial capture |
| 08-21 01:30 | 40m | -12 / - | EA5XA | - / -18 | 2 | ✓ Closing fragment |
| 08-21 01:29 | 40m | - / - | KD4DC | -14 / - | 3 | Partial capture |
| 08-21 01:28 | 40m | -14 / -9 | RK6MC | +6 / -11 | 5 | ✓ Full exchange observed |
| 08-21 01:27 | 40m | -12 / - | UA9CR | - / -12 | 2 | ✓ Closing fragment |
| 08-21 01:26 | 40m | - / -13 | EN35UKR | -2 / - | 2 | Partial capture |
| 08-21 01:26 | 40m | - / - | RK6MC | +5 / - | 2 | Partial capture |
| 08-21 01:24 | 40m | -12 / - | DJ0MAB | - / -17 | 4 | ✓ Closing fragment |
| 08-21 01:21 | 40m | -12 / -13 | WO2T | -8 / -16 | 9 | ✓ Full exchange observed |
| 08-21 01:20 | 40m | -16 / - | KB4DFK | - / -16 | 2 | Partial capture |
| 08-21 01:19 | 40m | -14 / -11 | EI2IXB | +7 / -15 | 4 | ✓ Full exchange observed |
| 08-21 01:16 | 40m | - / -4 | OJ0JR | -4 / - | 2 | ✓ Closing fragment |
| 08-21 01:15 | 40m | - / -7 | RO6G | -20 / - | 2 | Partial capture |
| 08-21 01:14 | 40m | -14 / - | RD9U | - / -16 | 2 | ✓ Closing fragment |
| 08-21 01:14 | 40m | - / - | RK6MC | +4 / - | 2 | Partial capture |
| 08-21 01:13 | 40m | -15 / - | FM4TI | - / -18 | 2 | ✓ Closing fragment |
| 08-21 01:11 | 40m | -15 / - | US1CR | -7 / -22 | 2 | Partial capture |
| 08-21 01:08 | 40m | -12 / -9 | EA3EDU | -10 / -11 | 8 | ✓ Full exchange observed |
| 08-21 01:07 | 40m | -14 / - | YV5AEZ | - / -15 | 2 | ✓ Closing fragment |
| 08-21 01:07 | 40m | -13 / -21 | K6RO | +2 / -8 | 12 | ✓ Full exchange observed |
| 08-21 01:06 | 40m | -12 / -8 | PY5XT | -5 / -11 | 11 | ✓ Full exchange observed |
| 08-21 01:06 | 40m | -15 / -7 | OK1AMF | -2 / -11 | 4 | ✓ Full exchange observed |
| 08-21 01:05 | 40m | -12 / -8 | VP2MAA | -9 / -9 | 5 | ✓ Full exchange observed |
| 08-21 01:04 | 40m | -13 / - | EA5GHE | -18 / -16 | 3 | ✓ Closing observed |
| 08-21 01:03 | 40m | -15 / - | AA4R | - / -18 | 3 | Partial capture |
| 08-21 01:02 | 40m | -14 / -5 | S57ANA | -10 / -7 | 4 | ✓ Full exchange observed |
| 08-21 01:01 | 40m | -12 / -18 | WA8LRW | -15 / -17 | 3 | ✓ Full exchange observed |
| 08-21 00:59 | 40m | -11 / - | VP2MAA | - / -9 | 3 | Partial capture |
| 08-21 00:56 | 40m | -11 / -4 | F5PBG | -5 / - | 4 | ✓ Closing observed |
| 08-21 00:53 | 40m | -16 / -7 | HA0AA | -6 / - | 5 | ✓ Closing observed |
| 08-21 00:52 | 40m | - / -19 | UR9QQ | -4 / - | 4 | ✓ Closing fragment |
| 08-21 00:48 | 40m | - / -17 | MM0KQC | -16 / - | 2 | Partial capture |
| 08-21 00:48 | 40m | - / - | GM4KHE | -4 / - | 2 | Partial capture |
| 08-21 00:47 | 40m | - / - | F5PBG | -2 / - | 2 | Partial capture |
| 08-21 00:47 | 40m | - / -12 | CT1FIU | -15 / - | 4 | ✓ Closing fragment |
| 08-21 00:46 | 40m | -12 / -5 | OK1SI | +4 / -12 | 2 | Partial capture |
| 08-21 00:45 | 40m | - / -14 | MM0KQC | -12 / - | 2 | Partial capture |
| 08-21 00:45 | 40m | - / - | UA3PY | +5 / - | 3 | Partial capture |
| 08-21 00:44 | 40m | - / -18 | UK8OM | +2 / - | 4 | Partial capture |
| 08-21 00:42 | 40m | - / -16 | SP2JLR | +10 / - | 4 | Partial capture |
| 08-21 00:42 | 40m | - / - | EA5HM | -6 / - | 4 | Partial capture |
| 08-21 00:39 | 40m | - / -3 | RW9LL | -13 / - | 4 | Partial capture |
| 08-21 00:39 | 40m | - / - | OK1SI | -12 / - | 5 | Partial capture |
| 08-21 00:35 | 40m | - / - | EA5XA | -11 / - | 3 | Partial capture |
| 08-21 00:35 | 40m | -11 / -10 | EC3A | -3 / - | 2 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 013315 -13 1068 UN9LCW JY4CH -15 013415 -9 1068 TI2ALF JY4CH -16 013430 -17 3126 JY4CH IU1VJP JO30 013500 -12 2343 JY4CH KS9J EM79 013515 -10 1068 KS9J JY4CH -16 (x2) 013600 -17 3126 JY4CH IU1VJP JO30 013715 -7 1068 IU1VJP JY4CH RR73 013730 -17 3125 JY4CH IU1VJP 73 013745 -8 1067 IZ8PPI JY4CH R-12 (x2) 013845 -11 1068 RA3LCI JY4CH R-16 (x3) 014030 -18 1446 JY4CH DG9RAB -14
UTC dB Audio Message 211345 -15 2451 JY4CH EA1DDF IN73 211415 -3 708 JY4CH EA5RR IM98 (x3) 211615 -13 2354 JY4CH EA1AOC IN83 211615 -10 1299 JY4CH EA5RR IM98 (x2) 211645 -15 1609 JY4CH EA1AOC IN83 (x6) 212245 -24 1601 JY4CH CT2IGO IN60 212345 -5 1467 JY4CH I5HLK R+06
UTC dB Audio Message 190230 -9 1626 JY4CH PS8CW 73 175045 -9 1841 JY4CH PD0ONP 73 175115 -14 1421 JY4CH PD1CW JO21 175115 +6 1082 JY4CH R6OP KN88 175145 -13 1421 JY4CH PD1CW R-09 175145 +0 1082 JY4CH R6OP KN88 175215 -10 1421 JY4CH PD1CW 73 175245 +6 1082 JY4CH R6OP R-24 (x2) 175645 -5 2092 JY4CH PD2GCM JO21 (x3) 184200 -21 1545 JY4CH PP5BP GG52 (x2) 184300 -18 1089 JY4CH DN9BLN JO62
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.