ON3CH — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ON3CH, decoded by SO8OO in southeastern Poland. 958 related FT8 messages, 305 CQ messages, observed on 80m, 40m, 20m, 10m, across 63 UTC dates. Heard between 2026-05-27 and 2026-08-24.
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee
Overview
Frequent QSO partners observed at SO8OO
Stations ON3CH worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by ON3CH
Approximate centre of JO20, decoded 2026-08-24 07:04 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 | ON3CH S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-24 06:01 | 20m | - / -9 | LZ3BS | +18 / - | 2 | ✓ Closing fragment |
| 08-23 20:14 | 20m | -22 / - | IZ5YBN | - / -22 | 2 | Partial capture |
| 08-23 17:42 | 20m | - / - | UN7EAX | -5 / - | 3 | Partial capture |
| 08-23 15:08 | 20m | - / - | M8GGQ | -10 / - | 2 | Partial capture |
| 08-22 12:05 | 20m | - / +2 | OK1AWC | -8 / - | 2 | Partial capture |
| 08-20 20:02 | 40m | - / -17 | DJ1OJ | +4 / - | 5 | ✓ Closing fragment |
| 08-20 20:01 | 80m | - / - | M0IOW | -22 / - | 2 | Partial capture |
| 08-20 19:50 | 40m | - / -9 | DL2CZ | +2 / - | 3 | ✓ Closing fragment |
| 08-20 19:46 | 40m | - / - | DL2CZ | 0 / - | 3 | Partial capture |
| 08-20 19:43 | 40m | - / -1 | SP5PDA | -8 / - | 2 | ✓ Closing fragment |
| 08-11 19:19 | 20m | -14 / - | G6INL | - / -18 | 2 | ✓ Closing fragment |
| 08-11 10:11 | 20m | - / - | DL7FE | -21 / - | 5 | Partial capture |
| 08-09 14:22 | 20m | - / -14 | IW4ELZ | -20 / - | 3 | ✓ Closing fragment |
| 08-08 18:53 | 20m | -18 / - | DJ1TU | - / -11 | 3 | Partial capture |
| 08-08 18:49 | 20m | -19 / - | DJ1TU | - / -11 | 3 | Partial capture |
| 08-08 18:28 | 20m | -15 / - | DJ1TU | - / -11 | 3 | Partial capture |
| 08-08 18:21 | 20m | -14 / - | R4FDW | - / -15 | 2 | Partial capture |
| 08-08 16:40 | 40m | - / -3 | DH2RL | -15 / - | 2 | ✓ Closing fragment |
| 08-08 16:35 | 40m | - / -25 | UA3GDJ | -12 / - | 2 | ✓ Closing fragment |
| 08-08 16:08 | 40m | - / -9 | IV3IHV | -19 / - | 2 | Partial capture |
| 08-07 19:15 | 40m | - / - | DK2WHS | -15 / - | 3 | Partial capture |
| 08-07 19:01 | 40m | - / +3 | PD0PWH | -19 / - | 3 | Partial capture |
| 08-04 17:41 | 20m | - / -10 | CR7BRV | -9 / - | 2 | ✓ Closing fragment |
| 08-02 20:41 | 20m | -18 / - | SP9MOC | - / -20 | 2 | ✓ Closing fragment |
| 08-02 20:34 | 40m | - / -12 | DM2HEY | -1 / - | 2 | ✓ Closing fragment |
| 07-31 22:02 | 20m | - / -19 | A71UN | -4 / - | 3 | Partial capture |
| 07-31 17:39 | 20m | - / -19 | ON6DSL | -18 / - | 2 | Partial capture |
| 07-31 17:07 | 20m | - / -6 | DL1UDO | -14 / - | 3 | ✓ Closing fragment |
| 07-30 21:24 | 20m | -11 / - | DS5USH | - / - | 3 | Partial capture |
| 07-30 21:13 | 20m | -14 / - | BG5FCH | - / - | 2 | Partial capture |
| 07-30 19:27 | 20m | - / -19 | TA1CQ | -12 / - | 4 | ✓ Closing fragment |
| 07-30 17:44 | 20m | - / - | UW5ESX | -2 / - | 15 | Partial capture |
| 07-30 16:38 | 20m | - / -9 | M7RFR | -18 / - | 3 | ✓ Closing fragment |
| 07-30 14:01 | 20m | - / -23 | DL4FCK | -2 / - | 7 | Partial capture |
| 07-30 13:13 | 20m | - / -10 | IZ5FSO | -18 / - | 2 | Partial capture |
| 07-30 13:01 | 20m | - / -12 | M7SXZ | -8 / - | 2 | ✓ Closing fragment |
| 07-29 15:23 | 20m | - / -19 | R4FDW | -13 / - | 9 | Partial capture |
| 07-29 10:54 | 20m | - / -9 | F1PBZ | -7 / - | 2 | ✓ Closing fragment |
| 07-28 21:32 | 20m | - / -21 | EA8UP | -11 / - | 4 | ✓ Closing fragment |
| 07-27 21:14 | 40m | - / -14 | SP1AKA | -7 / - | 2 | ✓ Closing fragment |
| 07-26 21:24 | 80m | -23 / -24 | UA2KU | +10 / - | 3 | ✓ Closing observed |
| 07-26 21:17 | 80m | - / - | DL3RDO | +5 / - | 3 | Partial capture |
| 07-26 21:17 | 80m | - / +4 | DO9ST | +2 / - | 3 | ✓ Closing fragment |
| 07-26 21:09 | 80m | -21 / -17 | DF8AA | +4 / - | 7 | ✓ Closing observed |
| 07-26 21:04 | 80m | -12 / -10 | DA6HU | -10 / -12 | 6 | ✓ Full exchange observed |
| 07-26 21:01 | 80m | - / -22 | IQ4JO | +5 / - | 3 | ✓ Closing fragment |
| 07-26 20:55 | 80m | - / - | DO8XC | +4 / - | 2 | Partial capture |
| 07-26 20:53 | 80m | -14 / -13 | DO1OAS | +7 / -18 | 5 | ✓ Full exchange observed |
| 07-26 20:49 | 80m | -10 / -6 | F4FRC | -4 / - | 5 | ✓ Closing observed |
| 07-26 20:46 | 80m | - / - | DM2BM | -2 / - | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 201445 -21 1491 IZ5YBN ON3CH -22 (x2) 060115 +13 2827 ON3CH LZ3BS -09 (x2) 060830 -6 2830 CQ ON3CH JO20 (x11)
UTC dB Audio Message 194300 -10 637 ON3CH SP5PDA -01 (x2) 194630 +0 2443 ON3CH DL2CZ JN59 (x6) 195600 -13 2444 ON3CH EB5RCA RRR 200200 +6 537 ON3CH DJ1OJ JN58 (x5) 200415 -18 2442 CQ ON3CH JO20
UTC dB Audio Message 211130 +6 2414 ON3CH DF8AA 73 211415 -16 441 CQ ON3CH JO20 a1 (x2) 211700 +2 1321 ON3CH DO9ST JO30 (x2) 211730 +5 1730 ON3CH DL3RDO JN68 211800 +4 1321 ON3CH DO9ST 73 211900 +4 1730 ON3CH DL3RDO JN68 (x2) 212400 +11 1375 ON3CH UA2KU -24 (x2) 212445 -23 441 UA2KU ON3CH 73 212730 +0 442 ON3CH DL4KSD JO71 200130 -22 2407 ON3CH M0IOW IO90 (x2)
UTC dB Audio Message 125230 -9 2177 ON3CH IK4IDY RR73 134600 +1 1183 ON3CH IU2SLW 73 152200 +7 1183 ON3CH S59MA JN76 (x10) 155200 -8 1182 ON3CH EA5JLB -08 (x2) 185300 -20 2083 CQ ON3CH JO20
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.