F4HCL — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F4HCL, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-23 and 2026-08-31.
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 11 FT8 messages attributed to F4HCL as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 11 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -11 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 5.
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 F4HCL in decoded directed-looking exchanges:
Most frequent locator attributed to F4HCL
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
- IN97 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,687 km (approx.)
- Last such locator decoded
- 2026-08-31 18:57 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 | F4HCL S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-31 18:52 | 20m | -2 / - | LY2BBF | - / - | 2 | ✓ Closing fragment |
| 08-31 18:50 | 20m | -5 / - | LA2VLA | - / - | 2 | Partial capture |
| 06-25 18:36 | 10m | - / -22 | IQ4JO | -6 / - | 6 | Partial capture |
| 06-25 18:26 | 20m | - / -5 | YO4NF | -6 / - | 2 | Partial capture |
| 06-23 18:54 | 20m | - / - | LZ3CB | -10 / - | 2 | Partial capture |
| 06-23 18:50 | 20m | -13 / - | LB9ZG | - / -14 | 2 | ✓ Closing fragment |
| 06-23 18:40 | 20m | -18 / - | HG0NPJ | - / -16 | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 185045 -11 1119 LB9ZG F4HCL R-14 (x2) 185400 -10 607 F4HCL LZ3CB KN32 (x2) 182545 -17 1099 DJ2MS F4HCL R+04 182630 -6 1098 F4HCL YO4NF -05 (x2) 075045 -15 2544 F4HCL PD0HLA JO22 114345 -15 2079 F4HCL IK4RVY -19 185045 -6 1171 LA2VLA F4HCL IN97 (x2) 185245 -4 1034 LY2BBF F4HCL IN97 (x2) 185745 -7 1426 CQ F4HCL IN97 a1 185830 -6 2542 F4HCL IQ4JO JN63
UTC dB Audio Message 183630 +0 2660 F4HCL IQ4JO JN63 183630 -10 2183 F4HCL DJ0MAB JN49 183700 -5 2659 F4HCL IQ4JO R-22 (x5)
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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