HL4CFN — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HL4CFN, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-08-25.
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 6 FT8 messages attributed to HL4CFN as the transmitting token by decoded message structure across 2 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 -15 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 6 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -15 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 4, 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 HL4CFN in decoded directed-looking exchanges:
Most frequent locator attributed to HL4CFN
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
- PM35 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,020 km (approx.)
- Last such locator decoded
- 2026-08-25 14:29 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 | HL4CFN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-25 14:28 | 20m | -15 / - | EP2AES | - / - | 3 | Partial capture |
| 08-25 14:16 | 20m | - / - | IW9FRA | -9 / - | 5 | Partial capture |
| 08-12 17:41 | 20m | - / -7 | F8FUA | -8 / - | 2 | Partial capture |
| 08-04 16:23 | 20m | - / -11 | EA3BD | -9 / - | 4 | Partial capture |
| 08-04 16:19 | 20m | - / - | UT7IA | -18 / - | 2 | ✓ Closing fragment |
| 08-04 16:19 | 20m | - / -8 | EA7ALL | -14 / - | 2 | ✓ Closing fragment |
| 08-04 16:17 | 20m | - / -7 | EC3A | -12 / - | 3 | ✓ Closing fragment |
| 08-04 16:16 | 20m | - / - | EA3BD | -13 / - | 5 | Partial capture |
| 08-01 00:45 | 20m | - / +4 | UN7LEW | -16 / - | 2 | ✓ Closing fragment |
| 07-17 23:08 | 20m | - / -15 | E70A | -7 / - | 4 | ✓ Closing fragment |
| 07-17 22:33 | 20m | - / - | LZ2EW | -18 / - | 2 | Partial capture |
| 07-11 18:02 | 20m | - / -18 | EA5HEU | -2 / - | 5 | ✓ Closing fragment |
| 07-11 17:57 | 20m | - / -15 | OE7FWJ | -12 / - | 4 | Partial capture |
| 07-11 17:48 | 20m | - / -3 | ON3NR | -5 / - | 2 | ✓ Closing fragment |
| 07-08 16:15 | 20m | - / -7 | DJ1TU | -9 / - | 9 | ✓ Closing fragment |
| 07-08 16:12 | 20m | - / - | IK2TCV | -16 / - | 2 | Partial capture |
| 07-08 16:10 | 20m | - / +7 | DL1CC | -2 / - | 7 | ✓ Closing fragment |
| 07-08 16:09 | 20m | - / -13 | SM3HZA | -21 / - | 2 | Partial capture |
| 07-08 16:05 | 20m | - / - | PD0LK | -15 / - | 12 | Partial capture |
| 07-08 15:48 | 20m | - / - | PD0LK | -18 / - | 4 | Partial capture |
| 07-08 15:47 | 20m | - / - | SP6AXW | -14 / - | 4 | Partial capture |
| 07-08 13:09 | 20m | - / - | UR4QWW | -16 / - | 3 | Partial capture |
| 07-08 12:47 | 20m | - / - | A41KB | -20 / - | 2 | ✓ Closing fragment |
| 07-04 22:51 | 20m | - / -17 | EA9ABC | -13 / - | 2 | ✓ Closing fragment |
| 07-02 10:54 | 20m | - / - | RC6OU | -4 / - | 3 | ✓ Closing fragment |
| 06-26 16:52 | 20m | - / - | DG4YT | -15 / - | 4 | Partial capture |
| 06-26 16:36 | 20m | - / - | EA3FZN | -11 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 162315 -9 1891 HL4CFN EA3BD JN01 (x4) 163415 -19 1566 HL4CFN PD0HLA -16 174145 -10 1927 HL4CFN F8FUA -07 (x2) 141630 -6 1007 HL4CFN IW9FRA JM68 (x5) 142800 -14 1224 EP2AES HL4CFN PM35 (x3)
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