R4HJT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R4HJT, decoded by SO8OO in southeastern Poland. 20 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-20 and 2026-07-20.
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 20 FT8 messages attributed to R4HJT 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 -8 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 20 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -12 to 0 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 12.
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 R4HJT in decoded directed-looking exchanges:
Most frequent locator attributed to R4HJT
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 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,036 km (approx.)
- Last such locator decoded
- 2026-07-20 04:06 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 | R4HJT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-20 04:07 | 20m | -8 / - | UN8PY | - / -5 | 2 | ✓ Closing fragment |
| 07-20 03:55 | 20m | - / -18 | RD4HX | -7 / - | 3 | ✓ Closing fragment |
| 07-20 03:53 | 20m | -12 / -5 | UB8CPH | -2 / - | 3 | ✓ Closing observed |
| 06-25 02:29 | 40m | - / -6 | RA6ZC | -12 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 035415 -5 3076 R4HJT UB8CPH 73 035545 -6 680 R4HJT RD4HX LO53 (x3) 040030 -8 673 CQ R4HJT LO53 (x5) 040545 -24 1326 R4HJT PD2WL JO22 040600 -10 668 CQ R4HJT LO53 a1 (x2) 040700 -9 667 UN8PY R4HJT -05 (x2) 040830 +0 667 R3DDS R4HJT RR73
UTC dB Audio Message 174830 -7 2707 R4HJT R3HH 73
UTC dB Audio Message 085800 -4 364 R4HJT DK7UY JO44
UTC dB Audio Message 022845 -8 2591 R4HJT F1PBZ -11 022915 -11 880 R4HJT RA6ZC R-06 (x2)
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