DJ4LK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DJ4LK, decoded by SO8OO in southeastern Poland. 373 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 26 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-15.
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 373 FT8 messages attributed to DJ4LK as the transmitting token by decoded message structure across 26 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (46%), followed by 60 m (25%) and 80 m (15%). Most decodes (75%) fell within the six-hour window 22:00-04:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (86%); the estimated median was -2 dB.
Overview
Bands
Last attributed message: 2026-09-15 02:13 UTC
Observed FT8 message patterns
- Attributed sample
- 373 messages
- Active dates
- 26 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -10 to +5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 11, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 321.
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 DJ4LK 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 DJ4LK
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
- JN59 · 238 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 777 km (approx.)
- Last such locator decoded
- 2026-09-15 02:12 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 | DJ4LK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 02:29 | 40m | - / - | RO6G | -22 / - | 2 | ✓ Closing fragment |
| 09-15 02:11 | 80m | -2 / -11 | VA3MO | -19 / -19 | 5 | ✓ Full exchange observed |
| 09-15 02:07 | 80m | - / - | YO3GNF | -5 / - | 6 | Partial capture |
| 09-15 02:06 | 80m | -1 / - | VY2JGC | -24 / -20 | 8 | ✓ Closing observed |
| 09-15 02:03 | 80m | +3 / -4 | F4FPR | -20 / -3 | 5 | ✓ Full exchange observed |
| 09-15 02:00 | 80m | +1 / -4 | G8OO | -6 / +6 | 7 | ✓ Full exchange observed |
| 09-15 01:59 | 80m | 0 / +10 | DO5PY | -6 / +1 | 4 | ✓ Full exchange observed |
| 09-15 01:56 | 80m | -2 / - | NR2C | - / - | 4 | Partial capture |
| 09-07 22:31 | 60m | 0 / +8 | ER1CW | -19 / +5 | 3 | ✓ Full exchange observed |
| 09-06 05:23 | 60m | - / -20 | HF0ROSA | -14 / - | 2 | Partial capture |
| 09-06 05:22 | 60m | -2 / - | LC2L/P | - / -20 | 4 | Partial capture |
| 09-06 05:18 | 60m | +3 / -4 | DL1PAB | -9 / +2 | 5 | ✓ Full exchange observed |
| 09-06 05:15 | 60m | +4 / - | ZL4OL | - / -19 | 6 | ✓ Closing fragment |
| 09-04 23:13 | 160m | +3 / - | RI1FJL | - / -15 | 12 | ✓ Closing fragment |
| 09-04 22:35 | 160m | -3 / - | RI1FJL | - / - | 56 | Partial capture |
| 09-04 22:29 | 160m | -6 / - | RI1FJL | - / - | 8 | Partial capture |
| 09-04 22:19 | 160m | -3 / - | RI1FJL | - / - | 13 | Partial capture |
| 09-04 22:10 | 160m | -6 / - | RI1FJL | - / - | 9 | Partial capture |
| 09-04 22:06 | 160m | -3 / - | DL4SKH | -18 / -5 | 6 | ✓ Closing observed |
| 09-04 21:54 | 160m | +9 / - | RI1FJL | - / - | 11 | Partial capture |
| 09-04 21:45 | 160m | 0 / - | ZS1J | - / - | 4 | Partial capture |
| 09-04 21:41 | 160m | -2 / - | TE1ST | - / - | 2 | Partial capture |
| 09-04 21:34 | 160m | +5 / - | DL9GCG | -11 / -2 | 6 | ✓ Closing observed |
| 09-04 21:33 | 160m | -1 / - | DA1LEO | - / +7 | 3 | Partial capture |
| 09-04 21:31 | 160m | -1 / - | DA6HF | - / -20 | 3 | ✓ Closing fragment |
| 09-04 21:30 | 160m | -1 / - | ON1BH | - / -21 | 3 | ✓ Closing fragment |
| 09-04 21:02 | 160m | -8 / - | DA6HF | - / -10 | 2 | Partial capture |
| 09-04 21:01 | 160m | -10 / - | F5MYK | -16 / -7 | 3 | ✓ Closing observed |
| 09-03 23:43 | 160m | -3 / - | RI1FJL | - / - | 5 | Partial capture |
| 09-03 23:31 | 160m | 0 / - | RI1FJL | - / - | 6 | Partial capture |
| 09-03 23:25 | 160m | -1 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-03 23:17 | 160m | -4 / - | RI1FJL | - / - | 8 | Partial capture |
| 09-03 23:03 | 160m | -12 / - | RI1FJL | - / - | 2 | Partial capture |
| 09-02 21:28 | 80m | - / -14 | V51WH | -9 / - | 3 | ✓ Closing fragment |
| 09-01 21:21 | 160m | -9 / - | GX1RAF | - / -13 | 4 | ✓ Closing fragment |
| 09-01 00:40 | 40m | -14 / -8 | DF8RU | -10 / -9 | 5 | ✓ Full exchange observed |
| 08-30 00:55 | 80m | +6 / - | W4YVA | - / - | 2 | ✓ Closing fragment |
| 08-30 00:51 | 80m | +4 / - | K1SFA | - / -5 | 4 | ✓ Closing fragment |
| 08-26 17:47 | 80m | -21 / - | R7CD | - / - | 3 | Partial capture |
| 08-16 03:42 | 60m | -5 / - | VE3EY | - / - | 5 | Partial capture |
| 08-16 03:40 | 60m | -2 / - | KZ8C | - / -4 | 2 | ✓ Closing fragment |
| 08-10 22:46 | 20m | -15 / - | K0FJ | - / +8 | 3 | Partial capture |
| 08-07 21:16 | 60m | -4 / - | OT4R | -10 / +4 | 4 | ✓ Full exchange observed |
| 08-07 21:12 | 60m | - / +10 | OT4R | -12 / - | 2 | Partial capture |
| 08-07 21:11 | 60m | -1 / -7 | IK5FKF | -12 / -15 | 6 | Partial capture |
| 08-07 21:11 | 60m | +4 / +5 | SM4TIW | -7 / -8 | 5 | ✓ Full exchange observed |
| 08-07 21:07 | 60m | -2 / - | OE5WRO | - / - | 4 | Partial capture |
| 07-28 22:38 | 60m | -2 / - | DF9AO | - / -15 | 2 | ✓ Closing fragment |
| 07-28 22:36 | 60m | -7 / - | VE1YX | - / -9 | 3 | ✓ Closing fragment |
| 07-18 22:21 | 20m | +6 / - | BG3NBD | - / -24 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 035530 -8 2285 KC4WQ DJ4LK R-07 (x2) 035700 -10 2285 VA3DWH DJ4LK -21 (x6) 004030 -13 2053 DF8RU DJ4LK JN59 004115 -10 923 DJ4LK DF8RU -08 004130 -11 2053 DF8RU DJ4LK R-09 004145 -11 922 DJ4LK DF8RU RR73 004300 -18 2053 DF8RU DJ4LK RRR 022915 -22 1990 DJ4LK RO6G RR73 (x2)
UTC dB Audio Message 020745 -1 2001 VY2JGC DJ4LK R-20 020800 -5 551 DJ4LK YO3GNF KN34 020815 +1 2001 VY2JGC DJ4LK R-20 (x4) 021000 -16 299 DJ4LK YO3GNF KN34 (x3) 021145 -7 1656 VA3MO DJ4LK JN59 021200 -1 2762 DJ4LK YO3GNF KN34 021215 +1 1656 VA3MO DJ4LK JN59 021230 -19 2187 DJ4LK VA3MO -11 021315 -2 1656 VA3MO DJ4LK R-19 (x2)
UTC dB Audio Message 051900 +4 630 DL1PAB DJ4LK R+02 051915 -9 1856 DJ4LK DL1PAB RRR 051930 +2 630 DL1PAB DJ4LK 73 051945 -8 1856 DJ4LK DL1PAB 73 052145 -7 2200 LA2W/P DJ4LK JN59 052215 -2 2199 SQ2RBY/P DJ4LK JN59 052245 +0 1926 LC2L/P DJ4LK JN59 052300 -16 2062 DJ4LK HF0ROSA -20 052315 -1 1926 LC2L/P DJ4LK R-20 052330 -12 2062 DJ4LK HF0ROSA -20 052345 -2 1926 LC2L/P DJ4LK R-15 (x2) 223115 -19 1690 DJ4LK ER1CW +08 223130 +1 1535 ER1CW DJ4LK R+05 (x2)
UTC dB Audio Message 230945 -2 1642 RI1FJL DJ4LK JN59 (x15)
UTC dB Audio Message 204115 -24 1590 DJ4LK IT9EJW RR73 204315 -16 2324 PP2BO DJ4LK JN59
UTC dB Audio Message 042130 -13 624 CQ DJ4LK JN59 064315 -13 2056 W6C DJ4LK JN59 (x2) 221600 +3 1855 BD6KJT DJ4LK JN59 (x2) 221730 +7 2663 JA4JKO DJ4LK -12 (x2) 221900 +6 2663 BH5HIE DJ4LK -24 (x2) 222100 +8 2663 BG3NBD DJ4LK -24 (x2) 224645 -15 1063 K0FJ DJ4LK JN59 (x3) 225045 -21 1304 AF0E DJ4LK 73
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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