F4LHZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F4LHZ, decoded by SO8OO in southeastern Poland. 360 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-08-20.
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 360 FT8 messages attributed to F4LHZ as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (98%), followed by 10 m (3%). Most decodes (84%) fell within the six-hour window 07:00-13:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9 dB.
Overview
Bands
Last attributed message: 2026-08-20 15:12 UTC
Observed FT8 message patterns
- Attributed sample
- 360 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -9 dB
- Estimated 10th-90th percentile
- -17 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 54, moderate (-15 to -9 dB) 130, strong (≥ -8 dB) 176.
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 F4LHZ 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 F4LHZ
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
- JN18 · 303 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,370 km (approx.)
- Last such locator decoded
- 2026-08-20 15:12 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 | F4LHZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-25 19:03 | 40m | - / -3 | HB10GBT | -7 / - | 2 | Partial capture |
| 08-20 15:56 | 40m | - / - | DB3MAX | -2 / - | 4 | Partial capture |
| 08-20 15:09 | 20m | -4 / - | SP5UKR | - / -7 | 4 | Partial capture |
| 08-20 15:08 | 20m | -4 / - | BU2FW | - / - | 2 | Partial capture |
| 08-20 15:05 | 20m | -2 / - | YO3NSS | - / - | 3 | Partial capture |
| 08-20 15:03 | 20m | -8 / - | SM4DDS | - / - | 3 | Partial capture |
| 08-20 14:54 | 20m | -10 / -14 | 9A3TGY | 0 / - | 5 | Partial capture |
| 08-20 10:17 | 20m | +5 / - | SM0WW | - / -11 | 3 | ✓ Closing fragment |
| 08-20 10:16 | 20m | +4 / - | GM4VYQ | - / - | 2 | Partial capture |
| 08-20 10:15 | 20m | +3 / - | OH6FYP | - / - | 3 | Partial capture |
| 08-20 10:13 | 20m | -2 / - | CR7BRV | - / - | 3 | Partial capture |
| 08-20 10:10 | 20m | -1 / - | MI0JZZ | - / - | 3 | Partial capture |
| 08-20 10:08 | 20m | +4 / - | OZ5KAJ | - / - | 3 | Partial capture |
| 08-20 10:05 | 20m | 0 / - | OH6FYP | - / - | 5 | Partial capture |
| 08-20 10:03 | 20m | +1 / +7 | MM0TBH | -2 / -8 | 8 | ✓ Full exchange observed |
| 08-20 09:59 | 20m | +2 / -17 | R3KCW | +9 / -4 | 5 | ✓ Full exchange observed |
| 08-20 09:57 | 20m | -8 / - | OE7MAH | - / - | 2 | ✓ Closing fragment |
| 08-20 09:53 | 20m | -9 / - | IU6UAQ | - / - | 3 | Partial capture |
| 08-20 09:41 | 20m | -9 / - | 3A2MW | - / -13 | 3 | ✓ Closing fragment |
| 07-17 15:32 | 40m | - / -7 | DL9KM | -19 / - | 3 | ✓ Closing fragment |
| 07-17 13:49 | 20m | - / - | DL1R | -6 / - | 3 | Partial capture |
| 07-17 12:19 | 20m | -16 / -16 | IV3JER | -16 / - | 3 | Partial capture |
| 07-17 11:03 | 20m | -17 / -14 | UA6FZ | -8 / -3 | 3 | ✓ Full exchange observed |
| 07-05 17:36 | 20m | -18 / - | YB1SKR | - / - | 2 | Partial capture |
| 07-05 17:23 | 20m | -10 / - | UN3P | - / -15 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 153200 -16 1449 F4LHZ DL9KM JN68 (x3) 155615 -1 2374 F4LHZ DB3MAX JO64 (x4) 190345 -7 1176 F4LHZ HB10GBT -03 (x2)
UTC dB Audio Message 150130 -3 2426 CQ F4LHZ JN18 150330 -9 2426 SM4DDS F4LHZ JN18 (x3) 150500 +2 2426 YO3NSS F4LHZ JN18 (x3) 150830 -5 2426 BU2FW F4LHZ JN18 (x2) 150930 -3 2426 SP5UKR F4LHZ JN18 (x4) 151230 -1 2515 CQ F4LHZ JN18 173900 +4 2630 F4LHZ RR73; PD3PAM <...> -22
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.
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