RD6J — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving RD6J, decoded by SO8OO in southeastern Poland. 24 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-30 and 2026-09-19.
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 24 FT8 messages attributed to RD6J as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (92%), followed by 20 m (8%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-19 18:43 UTC
Observed FT8 message patterns
- Attributed sample
- 24 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -17 to -7 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 3.
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 RD6J in decoded directed-looking exchanges:
Most frequent locator attributed to RD6J
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
- LN23 · 14 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,899 km (approx.)
- Last such locator decoded
- 2026-09-19 18:42 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 | RD6J S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-19 18:42 | 80m | -10 / - | RA3TVW | - / -16 | 2 | Partial capture |
| 09-19 18:39 | 80m | -7 / -19 | DH6BH | -8 / -15 | 5 | ✓ Full exchange observed |
| 09-19 18:35 | 80m | -18 / -8 | RA6OY | -1 / 0 | 4 | ✓ Full exchange observed |
| 09-07 10:38 | 40m | - / -10 | RY3D | -16 / - | 2 | Partial capture |
| 08-30 13:48 | 20m | -15 / - | RI1FJL | - / 0 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 150915 -16 2320 RD6J R7KM RR73 103615 -20 1686 RD6J R1943OD R-04 103815 -12 1988 RD6J RY3D KO95 (x2) 072315 -21 1895 RD6J RC2Y KO73 131615 -15 832 RD6J RD6AK 73
UTC dB Audio Message 183830 -16 860 UA4AGU RD6J 73 183845 -4 2855 RD6J RO3ZR KO80 183900 -12 860 CQ RD6J LN23 (x2) 183945 -11 861 RD6J DH6BH JO33 184000 -17 860 CQ RD6J LN23 184015 -7 863 RD6J DH6BH JO33 184030 -4 860 DH6BH RD6J -15 184045 -6 859 RD6J DH6BH R-19 184100 -10 860 DH6BH RD6J RR73 184130 -12 860 CQ RD6J LN23 (x2) 184230 -6 860 RA3TVW RD6J R-16 (x2) 184345 -18 1139 RD6J R2HB KO85
UTC dB Audio Message 134845 -15 780 RI1FJL RD6J +00 (x2) 134930 -4 482 RD6J RR73; IK8PGE <...> -10
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee