OZ4HAM — 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 OZ4HAM, decoded by SO8OO in southeastern Poland. 143 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-08-06 and 2026-08-16.
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 143 FT8 messages attributed to OZ4HAM as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (92%), followed by 20 m (8%). Most decodes (76%) fell within the six-hour window 14:00-20:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -7 dB.
Overview
Bands
Last attributed message: 2026-08-16 06:43 UTC
Observed FT8 message patterns
- Attributed sample
- 143 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -7 dB
- Estimated 10th-90th percentile
- -11 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 51, strong (≥ -8 dB) 90.
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 OZ4HAM 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 OZ4HAM
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
- JO75 · 51 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 769 km (approx.)
- Last such locator decoded
- 2026-08-16 06:41 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 | OZ4HAM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-16 06:41 | 40m | -4 / - | IZ8PPI | - / -13 | 4 | Partial capture |
| 08-16 06:39 | 40m | -10 / - | F5OYA/P | - / -7 | 2 | ✓ Closing fragment |
| 08-16 06:37 | 40m | -8 / +3 | OK1CT | -2 / - | 4 | ✓ Closing observed |
| 08-16 06:36 | 40m | -8 / - | F5OYA/P | - / -10 | 2 | ✓ Closing fragment |
| 08-16 06:23 | 40m | -4 / - | OE7LVI | - / -15 | 4 | ✓ Closing fragment |
| 08-16 06:22 | 40m | -3 / - | F4NGC | - / -9 | 2 | ✓ Closing fragment |
| 08-16 06:21 | 40m | 0 / - | G0LKL | - / -7 | 2 | ✓ Closing fragment |
| 08-15 18:00 | 40m | -9 / - | F4IIX | - / -6 | 2 | Partial capture |
| 08-15 17:58 | 40m | -14 / - | DL5BTE | - / -4 | 2 | ✓ Closing fragment |
| 08-15 17:55 | 40m | - / -10 | PD0RCQ | -14 / - | 4 | ✓ Closing fragment |
| 08-15 15:14 | 40m | -3 / - | G6FOV | - / -13 | 2 | ✓ Closing fragment |
| 08-15 15:13 | 20m | - / -12 | HB9CYT | -8 / - | 2 | Partial capture |
| 08-15 15:05 | 20m | - / -7 | EA3IDY | -11 / - | 11 | ✓ Closing fragment |
| 08-15 15:04 | 20m | - / +1 | OE8RPK | -18 / - | 2 | Partial capture |
| 08-15 15:03 | 40m | -8 / - | DL1AUW | - / -5 | 2 | ✓ Closing fragment |
| 08-15 15:01 | 40m | -9 / - | IU2SLI | - / -1 | 2 | ✓ Closing fragment |
| 08-15 14:57 | 40m | -10 / - | DG5NAB | - / -5 | 2 | ✓ Closing fragment |
| 08-15 14:54 | 20m | - / -5 | UN7PNF | -14 / - | 2 | ✓ Closing fragment |
| 08-15 14:52 | 40m | -10 / - | DL8LRZ | - / -10 | 2 | ✓ Closing fragment |
| 08-15 14:45 | 40m | - / - | DL8LRZ | -20 / - | 2 | Partial capture |
| 08-15 14:35 | 40m | -10 / - | SP9BEB | - / +3 | 2 | ✓ Closing fragment |
| 08-15 14:33 | 40m | - / - | 8S7DL | -14 / - | 2 | Partial capture |
| 08-15 14:06 | 40m | - / -2 | SP6AMI | -6 / - | 2 | Partial capture |
| 08-15 14:01 | 20m | - / - | HB9CYT | -14 / - | 3 | Partial capture |
| 08-15 13:57 | 20m | - / -6 | EA5PS | -13 / - | 8 | ✓ Closing fragment |
| 08-15 13:57 | 20m | - / - | G4MHJ | -6 / - | 2 | Partial capture |
| 08-15 13:39 | 40m | - / - | SP8FO | -10 / - | 2 | ✓ Closing fragment |
| 08-15 13:29 | 40m | - / +9 | DG5DR | -15 / - | 5 | ✓ Closing fragment |
| 08-14 19:24 | 40m | -6 / - | DF8MH | - / -6 | 2 | Partial capture |
| 08-14 19:23 | 40m | -11 / - | DL1EDR | -9 / -4 | 3 | Partial capture |
| 08-14 19:21 | 40m | -6 / - | JE1LFX | - / -12 | 2 | ✓ Closing fragment |
| 08-14 19:18 | 40m | -10 / - | F1IQH | -17 / -8 | 5 | ✓ Closing observed |
| 08-14 19:18 | 40m | -7 / -7 | DM7XK | -8 / -10 | 4 | ✓ Full exchange observed |
| 08-14 19:16 | 40m | -2 / - | SP9SOS | - / -10 | 2 | ✓ Closing fragment |
| 08-14 19:15 | 40m | -8 / - | OM6AKO | - / -8 | 2 | ✓ Closing fragment |
| 08-14 19:14 | 40m | -6 / - | OH6DVF | - / -14 | 3 | ✓ Closing fragment |
| 08-14 19:12 | 40m | -8 / - | DG2EBG | -20 / -1 | 3 | ✓ Closing observed |
| 08-14 19:10 | 40m | -3 / -15 | SP2QCR | -18 / -11 | 5 | ✓ Full exchange observed |
| 08-14 19:09 | 40m | -2 / +8 | DL4DBM | -11 / +2 | 4 | ✓ Full exchange observed |
| 08-14 19:09 | 40m | -3 / - | SA3LEN | - / 0 | 2 | ✓ Closing fragment |
| 08-14 19:08 | 40m | -2 / - | SP6FEK | - / 0 | 2 | ✓ Closing fragment |
| 08-14 19:07 | 40m | -4 / -11 | US3LX | -16 / 0 | 5 | ✓ Full exchange observed |
| 08-14 19:03 | 40m | -2 / -2 | DB0CUI | -19 / -5 | 6 | ✓ Full exchange observed |
| 08-14 19:01 | 40m | -6 / - | IZ8PPI | - / -13 | 4 | Partial capture |
| 08-14 19:00 | 40m | -4 / - | SV1EKI | - / -9 | 2 | ✓ Closing fragment |
| 08-14 15:11 | 20m | -9 / - | BU2FW | - / - | 2 | Partial capture |
| 08-14 15:06 | 20m | -10 / - | BG4LNW | - / -15 | 4 | Partial capture |
| 08-14 15:01 | 20m | - / -1 | UN7PNF | -13 / - | 4 | Partial capture |
| 08-14 14:26 | 20m | - / - | F4LHR/P | -10 / - | 2 | Partial capture |
| 08-14 14:08 | 20m | - / -5 | UA3VVA | -13 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 063600 -7 2702 F5OYA/P OZ4HAM -10 (x2) 063715 -1 2702 OZ4HAM OK1CT JN69 (x2) 063800 -8 2702 OK1CT OZ4HAM RR73 063815 -5 2702 OZ4HAM OK1CT 73 063900 -8 2702 F5OYA/P OZ4HAM -07 (x2) 064000 -1 2702 CQ OZ4HAM JO75 (x3) 064130 -3 2702 IZ8PPI OZ4HAM R-13 (x4)
UTC dB Audio Message 150630 -12 2274 OZ4HAM EA3IDY JN01 (x8) 151100 -1 2648 OZ4HAM OE/SP5DAA JN66 151100 -8 773 OZ4HAM EA3IDY 73 151300 -9 723 OZ4HAM HB9CYT JN36 151330 -5 2648 OZ4HAM OE/SP5DAA JN66 151330 -6 724 OZ4HAM HB9CYT R-12 151530 -10 722 OZ4HAM IS0LIT 73 151800 -21 2207 OZ4HAM F4AXK IN96
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.
Explore CW reception at SO8OOFT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee