OZ1HMJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OZ1HMJ, decoded by SO8OO in southeastern Poland. 7 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-06-18.
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 7 FT8 messages attributed to OZ1HMJ as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (86%), followed by 10 m (14%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-06-18 23:29 UTC
Observed FT8 message patterns
- Attributed sample
- 7 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -21 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 0.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with OZ1HMJ in decoded directed-looking exchanges:
Most frequent locator attributed to OZ1HMJ
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
- JO65 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 855 km (approx.)
- Last such locator decoded
- 2026-06-18 23:24 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 | OZ1HMJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-12 07:47 | 20m | - / -9 | DL9PN | -16 / - | 4 | ✓ Closing fragment |
| 08-11 00:28 | 20m | - / -8 | HA1BF | -10 / - | 4 | ✓ Closing fragment |
| 08-09 11:54 | 10m | - / -7 | IK4ZII | -3 / - | 2 | ✓ Closing fragment |
| 08-07 10:01 | 20m | - / - | F1PSX | -19 / - | 3 | Partial capture |
| 07-05 18:24 | 10m | - / -5 | DF9SJ | -12 / - | 2 | ✓ Closing fragment |
| 07-05 18:19 | 10m | - / -8 | 9A2KS | -20 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 100100 -23 1575 OZ1HMJ F1PSX JN08 (x3) 175845 -19 1558 OZ1HMJ MI7JQH -16 002800 -12 1495 OZ1HMJ HA1BF -08 (x4) 074700 -15 1576 OZ1HMJ DL9PN JN39 (x4)
UTC dB Audio Message 181945 -20 1470 OZ1HMJ 9A2KS JN65 (x3) 182415 -12 1633 OZ1HMJ DF9SJ R-05 (x2) 184545 -11 439 OZ1HMJ IV3DXW JN65 115400 -5 1701 OZ1HMJ IK4ZII -07 (x2)
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee