JH4BYZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JH4BYZ, decoded by SO8OO in southeastern Poland. 520 related FT8 messages, 262 CQ messages, observed on 40m, 20m, across 52 UTC dates. Heard between 2026-05-25 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 JH4BYZ worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by JH4BYZ
Approximate centre of PM64, decoded 2026-08-23 21:12 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 | JH4BYZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-22 20:49 | 20m | - / -17 | F6EQD | +4 / - | 3 | ✓ Closing fragment |
| 08-21 20:28 | 20m | - / -25 | DH1KJ | +10 / - | 3 | ✓ Closing fragment |
| 08-10 20:58 | 20m | - / -20 | DK7NL | +3 / - | 3 | ✓ Closing fragment |
| 08-08 20:11 | 40m | - / -21 | DJ6GI | -1 / - | 4 | ✓ Closing fragment |
| 08-05 20:39 | 20m | - / -18 | MM9ODX | -5 / - | 2 | ✓ Closing fragment |
| 08-02 20:58 | 40m | - / -25 | RW6HPS | -12 / - | 2 | ✓ Closing fragment |
| 07-29 13:36 | 20m | - / -16 | R6OAG | -2 / - | 3 | ✓ Closing fragment |
| 07-26 20:43 | 20m | - / -11 | IU3TOO | 0 / - | 2 | ✓ Closing fragment |
| 07-22 21:03 | 20m | - / -16 | CT7APA | -4 / - | 2 | ✓ Closing fragment |
| 07-21 20:38 | 20m | - / -15 | IN3ESY | -10 / - | 2 | Partial capture |
| 07-21 20:33 | 40m | - / - | DH5BM | -1 / - | 6 | Partial capture |
| 07-20 20:49 | 20m | - / -10 | ON1JP | -16 / - | 4 | Partial capture |
| 07-18 20:21 | 20m | - / -15 | IK5AUL | -11 / - | 3 | ✓ Closing fragment |
| 07-17 20:36 | 20m | - / -24 | UT7UJ | +2 / - | 5 | Partial capture |
| 07-17 12:53 | 20m | - / -19 | DL1DTL | -14 / - | 2 | ✓ Closing fragment |
| 07-15 20:11 | 20m | - / -13 | HB9FUR | +2 / - | 3 | ✓ Closing fragment |
| 07-15 14:08 | 20m | - / -18 | II0NRG | -9 / - | 2 | ✓ Closing fragment |
| 07-12 20:53 | 20m | - / -14 | DL6EL | -5 / - | 3 | ✓ Closing fragment |
| 06-28 20:06 | 20m | - / -14 | EC5M | -11 / - | 2 | ✓ Closing fragment |
| 06-28 19:39 | 20m | - / -14 | S55A | -5 / - | 2 | ✓ Closing fragment |
| 06-25 21:03 | 20m | - / -12 | DF3IS | +6 / - | 2 | ✓ Closing fragment |
| 06-23 12:51 | 20m | - / -9 | R4ML | -10 / - | 2 | Partial capture |
| 06-20 20:43 | 20m | - / - | CT7ALI | -8 / - | 2 | Partial capture |
| 06-19 20:37 | 20m | - / -15 | II9RICT | +21 / - | 2 | Partial capture |
| 06-18 21:00 | 20m | - / -13 | IQ2DB | -6 / - | 2 | ✓ Closing fragment |
| 06-18 20:53 | 20m | -9 / - | BA6IM | - / -8 | 3 | ✓ Closing fragment |
| 06-18 20:26 | 20m | - / -14 | IZ2QGB | 0 / - | 4 | ✓ Closing fragment |
| 06-18 20:24 | 20m | - / -11 | RA6B | -5 / - | 3 | ✓ Closing fragment |
| 06-18 20:11 | 20m | -16 / - | TA3NK | +2 / -17 | 7 | Partial capture |
| 06-17 20:45 | 20m | -14 / - | 9K2MP | - / - | 3 | Partial capture |
| 06-17 20:31 | 20m | -9 / - | CX5AL | - / - | 5 | Partial capture |
| 06-17 20:07 | 20m | -15 / -3 | BG4OOO | -12 / -2 | 6 | ✓ Full exchange observed |
| 06-16 20:26 | 20m | -21 / -18 | IQ5AAR | 0 / - | 3 | ✓ Closing observed |
| 06-14 21:19 | 20m | - / -12 | IT9HJQ | -8 / - | 2 | ✓ Closing fragment |
| 06-14 21:14 | 20m | - / -7 | SV4ZQ | -7 / - | 2 | Partial capture |
| 06-14 20:59 | 20m | -12 / - | 7Z1CB | - / - | 2 | Partial capture |
| 06-13 20:46 | 20m | -12 / - | IQ8DO | - / - | 2 | Partial capture |
| 06-13 20:42 | 20m | -12 / - | EA5ASQ | -9 / - | 2 | ✓ Closing observed |
| 06-13 20:40 | 20m | -6 / - | EW4IDP | - / -13 | 2 | ✓ Closing fragment |
| 06-13 20:39 | 20m | -5 / - | R6FMF | -11 / -17 | 3 | ✓ Closing observed |
| 06-13 20:38 | 20m | -2 / - | UR4QWW | - / -8 | 2 | ✓ Closing fragment |
| 06-13 20:33 | 20m | -2 / - | TA1SW | - / - | 2 | Partial capture |
| 06-13 20:29 | 20m | -6 / - | PS8CW | - / - | 2 | Partial capture |
| 06-13 20:23 | 20m | -10 / - | N7IEQ | - / -25 | 4 | ✓ Closing fragment |
| 06-13 20:19 | 20m | -10 / - | 9K2KU | - / -13 | 3 | ✓ Closing fragment |
| 06-13 20:19 | 20m | - / - | YO7VNS | -7 / - | 7 | Partial capture |
| 06-13 20:03 | 40m | - / - | DL9AJ | +7 / - | 3 | Partial capture |
| 06-12 20:13 | 20m | -10 / - | DK9UD | - / - | 2 | Partial capture |
| 06-12 20:11 | 20m | -11 / - | 9A5MP | - / - | 2 | Partial capture |
| 06-11 21:19 | 20m | -13 / - | IS0KNG | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 204630 -13 1930 JH4BYZ HB9TVS RR73 205830 -2 3077 JH4BYZ DK7NL JN59 (x3) 133030 -5 453 JH4BYZ F8KIC/P +00 202830 +9 2634 JH4BYZ DH1KJ -25 (x3) 204700 -16 2965 JH4BYZ SA3LEN -25 204930 +5 1378 JH4BYZ F6EQD JN05 (x3) 210330 -19 870 JH4BYZ LU1AMX -17 211015 -9 3029 TA1SW JH4BYZ PM64 211245 -6 3030 CQ JH4BYZ PM64
UTC dB Audio Message 203330 +1 2992 JH4BYZ DH5BM JO41 (x6) 205730 -11 1741 JH4BYZ PA2WCB JO21 205800 -12 290 JH4BYZ RW6HPS R-25 (x2) 193315 +3 2757 JH4BYZ PA2WCB JO21 204800 -11 1738 JH4BYZ GW8DX -18 201130 -3 762 JH4BYZ DJ6GI JO43 (x4)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.