OT4N — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving OT4N, decoded by SO8OO in southeastern Poland. 909 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 13 UTC dates in the available aggregate history. Observed between 2026-06-23 and 2026-10-15.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 909 FT8 messages attributed to OT4N as the transmitting token by decoded message structure across 13 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (67%), followed by 40 m (32%) and 20 m (1%). Most decodes (54%) fell within the six-hour window 12:00-18:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Bands
Last attributed message: 2026-10-15 06:52 UTC
Observed FT8 message patterns
- Attributed sample
- 909 messages
- Active dates
- 13 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -19 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 213, moderate (-15 to -9 dB) 367, strong (≥ -8 dB) 329.
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with OT4N in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to OT4N
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- JO10 · 341 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,335 km (approx.)
- Last such locator decoded
- 2026-10-15 06:47 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
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 | OT4N S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-15 06:49 | 60m | -16 / - | PA/DL3IAS | - / -8 | 3 | Partial capture |
| 10-15 06:40 | 60m | -18 / +1 | F1TXI | -15 / +6 | 3 | ✓ Full exchange observed |
| 10-15 06:37 | 60m | -20 / - | DB4JW | - / -6 | 2 | ✓ Closing fragment |
| 10-15 06:34 | 60m | -15 / - | LA7DFA | - / -2 | 5 | ✓ Closing fragment |
| 10-15 06:28 | 60m | -14 / +1 | DL4MFC | -7 / 0 | 5 | ✓ Full exchange observed |
| 10-15 06:26 | 60m | -18 / - | G7RTI | - / -8 | 2 | ✓ Closing fragment |
| 10-15 06:23 | 60m | -12 / -10 | DG4HAD | -18 / - | 3 | ✓ Closing observed |
| 10-15 06:20 | 60m | -17 / - | PA/DL3IAS | - / 0 | 2 | Partial capture |
| 10-15 06:16 | 60m | -13 / 0 | DG9LBD | -17 / +1 | 4 | ✓ Full exchange observed |
| 10-15 06:13 | 60m | -14 / - | K9DXI | - / -16 | 3 | ✓ Closing fragment |
| 10-15 06:09 | 60m | -14 / - | DL5CK | -5 / +6 | 5 | ✓ Full exchange observed |
| 10-15 06:08 | 60m | -11 / - | YO9IE | - / -16 | 2 | Partial capture |
| 10-15 06:07 | 60m | -12 / - | PA2PF | - / +10 | 2 | ✓ Closing fragment |
| 10-15 06:04 | 60m | -16 / - | DH7AY | - / -7 | 2 | Partial capture |
| 10-15 05:59 | 60m | -16 / -9 | YT2ZE | -9 / -11 | 5 | ✓ Full exchange observed |
| 10-15 05:57 | 60m | -14 / - | DF4BJ | - / -9 | 3 | ✓ Closing fragment |
| 10-15 05:50 | 60m | -9 / -17 | OM1CI | +6 / -6 | 4 | ✓ Full exchange observed |
| 10-15 05:46 | 60m | -9 / -2 | HB9DWR | -24 / -4 | 3 | ✓ Full exchange observed |
| 10-15 05:44 | 60m | -5 / - | EA5EBD | - / -17 | 3 | Partial capture |
| 10-15 05:42 | 60m | -2 / - | OH3NAO | - / -12 | 2 | ✓ Closing fragment |
| 10-15 05:40 | 60m | -5 / - | EA5HM | - / -7 | 2 | ✓ Closing fragment |
| 10-15 05:38 | 60m | -6 / - | OH1LA | - / -14 | 2 | ✓ Closing fragment |
| 10-15 05:37 | 60m | -8 / -5 | PA1AW | -8 / -8 | 5 | ✓ Full exchange observed |
| 10-15 05:35 | 60m | -6 / - | EC3A | - / -17 | 2 | ✓ Closing fragment |
| 10-15 05:34 | 60m | -7 / - | EA5HM | - / -17 | 2 | Partial capture |
| 10-15 05:32 | 60m | -6 / -3 | HA7TM | +7 / - | 5 | ✓ Full exchange observed |
| 10-15 05:32 | 60m | -8 / - | IZ0MQN | -21 / -11 | 6 | ✓ Full exchange observed |
| 10-14 17:17 | 60m | -15 / -18 | LZ1ZF | -7 / -12 | 6 | ✓ Full exchange observed |
| 10-14 17:12 | 60m | -14 / -6 | SV8LMQ | -12 / -8 | 4 | ✓ Full exchange observed |
| 10-14 17:11 | 60m | -14 / - | M0IOW | -24 / -13 | 3 | ✓ Closing observed |
| 10-14 17:08 | 60m | -14 / -17 | HA5LB | -15 / - | 3 | ✓ Closing observed |
| 10-14 17:07 | 60m | -10 / - | <...> | - / -10 | 2 | Partial capture |
| 10-14 17:03 | 60m | -13 / - | SP9JCN | - / -14 | 4 | ✓ Closing fragment |
| 10-14 17:01 | 60m | -14 / +1 | DL8UD | +2 / +7 | 4 | ✓ Full exchange observed |
| 10-14 16:54 | 60m | -10 / - | OH7DSQ | -12 / -8 | 4 | ✓ Closing observed |
| 10-14 16:53 | 60m | -10 / - | DL3HQL | - / +1 | 2 | ✓ Closing fragment |
| 10-14 16:50 | 60m | -8 / +1 | G0YYZ | -12 / 0 | 4 | ✓ Full exchange observed |
| 10-14 16:49 | 60m | -7 / - | DC1EKG | -14 / +4 | 3 | ✓ Closing observed |
| 10-14 16:48 | 60m | -4 / - | SM7HWD | - / +4 | 2 | Partial capture |
| 10-14 16:45 | 60m | -7 / - | DF4WQ | -11 / +10 | 5 | ✓ Full exchange observed |
| 10-14 16:45 | 60m | -6 / - | PF7DKW | +9 / - | 2 | ✓ Closing observed |
| 10-14 16:44 | 60m | -10 / - | DL6EBC | - / -14 | 4 | ✓ Closing fragment |
| 10-14 06:11 | 60m | -11 / - | M0GDX | - / -12 | 3 | ✓ Closing fragment |
| 10-14 06:10 | 60m | -8 / -4 | OK1TRJ | -14 / -4 | 4 | ✓ Full exchange observed |
| 10-14 06:09 | 60m | -13 / - | MM0ABM | - / +4 | 2 | ✓ Closing fragment |
| 10-14 06:06 | 60m | -7 / - | LZ2SPD | - / -8 | 2 | Partial capture |
| 10-14 06:00 | 60m | -12 / - | F6FTB | -5 / +10 | 4 | ✓ Full exchange observed |
| 10-14 05:58 | 60m | -14 / - | F5OYA/P | - / +4 | 2 | ✓ Closing fragment |
| 10-14 05:57 | 60m | -12 / - | EA1AUM | -20 / -4 | 3 | ✓ Closing observed |
| 10-14 05:54 | 60m | -10 / - | DJ1OJ | +9 / - | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 064015 -16 1440 OT4N F1TXI +01 064030 -18 2164 F1TXI OT4N R+06 064045 -14 1440 OT4N F1TXI RR73 064130 -15 2164 CQ OT4N JO10 (x6) 064700 -20 2164 GI4OGS OT4N RR73 064730 -22 2164 CQ OT4N JO10 a1 064915 -18 2164 PA/DL3IAS OT4N -08 (x3) 065215 -19 2165 F5OYA/P OT4N -14
UTC dB Audio Message 170130 +1 2382 II5GG OT4N +07 (x2) 170315 -10 2432 OT4N II5GG R-07 170330 +0 2560 II5GG OT4N RR73 170345 -7 2432 OT4N II5GG 73 095400 -14 2562 GJ0KYZ OT4N R+07 095530 -12 2561 DM2PE OT4N +09 095800 -13 2560 PE1LDS OT4N RR73 095830 -11 2560 OK8UQ OT4N -08 (x2) 100000 -14 2561 DK8MT OT4N -07 100100 -11 2561 CQ OT4N JO10 a1 (x4)
UTC dB Audio Message 073815 -18 2311 SQ9M OT4N -05 074215 -13 2355 TA2EE OT4N -11 074230 -4 2355 OT4N UX0CZ KN59 074245 -12 2355 YU4RBL OT4N -08 074300 -1 2355 OT4N UX0CZ KN59 074545 -12 2355 TA2EE OT4N RR73 (x2) 074715 -13 2355 CQ OT4N JO10 (x2) 080615 +10 2805 <...> OT4N -07 080900 +8 2883 SP2HF/9 OT4N -02
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
CW
No CW receptions recorded for this callsign in the last 30 days.
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