R4HNZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R4HNZ, decoded by SO8OO in southeastern Poland. 526 FT8 messages attributed to this token as transmitter, on 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-06-25.
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 526 FT8 messages attributed to R4HNZ as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (78%) fell within the six-hour window 05:00-11:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (89%); the estimated median was -1 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 526 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -9 to +9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 49, strong (≥ -8 dB) 468.
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 R4HNZ in decoded directed-looking exchanges:
Most frequent locator attributed to R4HNZ
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
- LO53 · 275 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,036 km (approx.)
- Last such locator decoded
- 2026-06-25 20:28 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 | R4HNZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 06-25 20:25 | 20m | -4 / - | PP5HR | - / -4 | 2 | ✓ Closing fragment |
| 06-25 20:04 | 20m | -4 / - | TN8GD | - / - | 5 | Partial capture |
| 06-25 15:53 | 20m | - / - | UA4HBJ | -11 / - | 3 | Partial capture |
| 06-25 15:50 | 20m | -14 / - | FR4NB | - / -12 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 155145 -14 2415 FR4NB R4HNZ R-12 (x2) 155300 -10 1351 R4HNZ UA4HBJ LO53 (x3) 172200 -24 1797 R4HNZ YC5NTP R-24 200445 -4 2415 TN8GD R4HNZ LO53 (x5) 201000 -15 2416 9J2FI R4HNZ LO53 202545 -5 2416 PP5HR R4HNZ R-04 (x2) 202815 -3 2416 CX7AT R4HNZ LO53
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee