R8LDJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving R8LDJ, decoded by SO8OO in southeastern Poland. 390 FT8 messages attributed to this token as transmitter, on 80m, 20m, across 30 UTC dates in the available aggregate history. Observed between 2026-06-06 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 390 FT8 messages attributed to R8LDJ as the transmitting token by decoded message structure across 30 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (99%), followed by 80 m (1%). The busiest six-hour window was 02:00-08:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14.4 dB.
Overview
Bands
Last attributed message: 2026-08-31 12:00 UTC
Observed FT8 message patterns
- Attributed sample
- 390 messages
- Active dates
- 30 UTC dates
- Estimated median S/N
- -14.4 dB
- Estimated 10th-90th percentile
- -21 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 164, moderate (-15 to -9 dB) 174, strong (≥ -8 dB) 52.
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 R8LDJ in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to R8LDJ
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
- MO48 · 253 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,140 km (approx.)
- Last such locator decoded
- 2026-08-31 12:00 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 | R8LDJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-11 01:47 | 40m | - / -14 | UA9SY | -15 / - | 5 | ✓ Closing fragment |
| 09-11 01:46 | 40m | - / 0 | RY4D | -4 / - | 2 | ✓ Closing fragment |
| 09-08 01:05 | 80m | - / -13 | R4OF | -2 / - | 2 | ✓ Closing fragment |
| 08-31 11:48 | 20m | - / - | F1IQH | -4 / - | 3 | Partial capture |
| 08-31 09:49 | 20m | - / -16 | 9A6NTK | +12 / - | 3 | ✓ Closing fragment |
| 08-31 08:43 | 20m | - / -10 | DL2NO | +8 / - | 2 | Partial capture |
| 08-31 07:04 | 20m | - / -4 | UA3PRS | -3 / - | 2 | ✓ Closing fragment |
| 08-31 06:00 | 20m | - / - | IK8IUQ | +2 / - | 2 | Partial capture |
| 08-31 06:00 | 20m | -14 / -24 | TC30AGU | +13 / -6 | 7 | Partial capture |
| 08-31 05:45 | 20m | -23 / - | RC5F | - / +4 | 2 | Partial capture |
| 08-31 04:54 | 20m | -10 / - | YO6FNF | - / -8 | 5 | ✓ Closing fragment |
| 08-31 04:44 | 20m | -19 / - | R6FCT | - / +2 | 9 | Partial capture |
| 08-31 04:36 | 20m | - / -16 | A99AA | -18 / - | 2 | ✓ Closing fragment |
| 08-31 04:23 | 20m | -21 / - | OE9KFV | - / -9 | 2 | ✓ Closing fragment |
| 08-30 14:43 | 20m | - / - | PA2AMJ | -1 / - | 2 | Partial capture |
| 08-30 14:43 | 20m | - / - | VU2FR | -5 / - | 3 | Partial capture |
| 08-30 14:38 | 20m | - / -23 | PD1RMB | -12 / - | 3 | ✓ Closing fragment |
| 08-30 13:27 | 20m | - / -10 | G4UJS | +12 / - | 2 | ✓ Closing fragment |
| 08-30 12:27 | 20m | -18 / -5 | IK4LZH | +12 / -1 | 5 | ✓ Full exchange observed |
| 08-30 10:50 | 20m | - / -9 | RV3GZ | 0 / - | 2 | ✓ Closing fragment |
| 08-30 08:28 | 20m | - / -9 | LB6BK | -4 / - | 2 | Partial capture |
| 08-29 10:11 | 20m | - / - | OT8T | -15 / - | 3 | Partial capture |
| 08-29 09:55 | 20m | - / - | OT8T | -19 / - | 4 | Partial capture |
| 08-28 13:29 | 20m | - / -13 | F4MZI | +2 / - | 2 | ✓ Closing fragment |
| 08-27 11:36 | 20m | - / - | OK2CNI | -9 / - | 16 | Partial capture |
| 08-26 15:18 | 20m | -15 / - | R5ACQ | - / -2 | 5 | Partial capture |
| 08-26 14:37 | 20m | -19 / - | RV6BT | - / 0 | 2 | Partial capture |
| 08-25 15:49 | 20m | -5 / - | UC6B | - / -10 | 4 | Partial capture |
| 08-25 15:43 | 20m | -13 / - | IZ3ZOF | - / -13 | 5 | Partial capture |
| 08-25 15:31 | 20m | -16 / -10 | F4PCM | +22 / -6 | 5 | ✓ Full exchange observed |
| 08-25 15:29 | 20m | -12 / -15 | G1LQT | -3 / -15 | 4 | ✓ Full exchange observed |
| 08-25 15:28 | 20m | -10 / - | OZ1BUR | - / -6 | 2 | ✓ Closing fragment |
| 08-25 15:13 | 20m | -12 / - | SP5MXZ | - / +1 | 8 | Partial capture |
| 08-25 15:05 | 20m | -12 / - | SP5MXZ | - / +1 | 9 | Partial capture |
| 08-25 14:59 | 20m | - / -11 | BH4ECL | -14 / - | 2 | Partial capture |
| 08-25 14:56 | 20m | -14 / - | RA3WEO | - / +5 | 2 | ✓ Closing fragment |
| 08-24 11:08 | 20m | - / - | TA3NK | -7 / - | 3 | Partial capture |
| 08-24 09:13 | 20m | - / -13 | IK4LZH | +19 / - | 3 | ✓ Closing fragment |
| 08-24 09:08 | 20m | - / -20 | CT7AUT | +2 / - | 2 | Partial capture |
| 08-24 08:29 | 20m | - / -4 | RW4CCW | +2 / - | 2 | ✓ Closing fragment |
| 08-24 08:08 | 20m | - / -25 | PI4DX | +6 / - | 2 | ✓ Closing fragment |
| 08-23 14:12 | 20m | - / - | G7LHK | -5 / - | 4 | Partial capture |
| 08-23 14:01 | 20m | -12 / - | R3KV | - / -7 | 2 | Partial capture |
| 08-23 13:56 | 20m | -14 / -6 | UB3PET | -14 / - | 3 | ✓ Closing observed |
| 08-23 13:51 | 20m | - / -21 | YU7DES | +3 / - | 3 | Partial capture |
| 08-23 13:22 | 20m | -6 / - | R0ADN | - / -15 | 2 | ✓ Closing fragment |
| 08-23 12:06 | 20m | - / - | IK4LZH | +17 / - | 2 | Partial capture |
| 08-22 14:19 | 20m | - / -1 | PD0PY | -18 / - | 2 | ✓ Closing fragment |
| 08-22 13:06 | 20m | - / - | YT1DDL | -8 / - | 2 | Partial capture |
| 08-22 13:01 | 20m | - / -15 | DF0W | -3 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 014600 -3 1101 R8LDJ RY4D R+00 (x2) 014700 -16 1536 R8LDJ UA9SY LO63 (x5) 015030 -13 789 R8LDJ RA6ABO 73
UTC dB Audio Message 173300 -13 1949 R8LDJ R8CKD 73 173930 +7 2571 R8LDJ RU4F LO23 174030 -1 1973 R8LDJ UA9YDR NO13 174030 +11 2571 R8LDJ RU4F LO23 174100 -2 1973 R8LDJ UA9YDR R+07 (x2) 174745 -24 1853 CQ R8LDJ MO48 a1 184130 -3 2595 R8LDJ R4NBV LO56 (x2) 193930 -15 958 CQ R8LDJ MO48 a1 (x3) 010545 -4 1496 R8LDJ R4OF R-13 (x2) 013945 -7 1754 R8LDJ RC9WC RR73
UTC dB Audio Message 084315 +8 631 R8LDJ DL2NO -10 (x2) 094945 +10 1691 R8LDJ 9A6NTK JN85 (x3) 101400 -18 628 CQ R8LDJ MO48 (x4) 114845 -1 628 R8LDJ F1IQH JN27 (x3) 115015 -7 2345 R8LDJ R4DS -02 120000 -18 628 CQ R8LDJ MO48 (x2)
UTC dB Audio Message 101245 -14 1594 R8LDJ RU3GF -07
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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