DJ7JC — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DJ7JC, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-27.
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 29 FT8 messages attributed to DJ7JC as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (59%), followed by 10 m (41%). Several six-hour UTC windows tied for the largest share (59%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Bands
Last attributed message: 2026-08-27 11:13 UTC
Observed FT8 message patterns
- Attributed sample
- 29 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -19 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 17.
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 DJ7JC 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 DJ7JC
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
- JO31 · 22 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,054 km (approx.)
- Last such locator decoded
- 2026-08-27 11:13 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 | DJ7JC S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-26 20:51 | 20m | -3 / - | VP2VKC | - / - | 2 | Partial capture |
| 08-26 20:47 | 20m | -6 / - | KC1EPL | - / - | 3 | Partial capture |
| 08-24 05:57 | 20m | - / -15 | LZ2VQ | -5 / - | 3 | ✓ Closing fragment |
| 08-22 21:45 | 20m | -7 / - | LB4PJ/MM | - / - | 4 | Partial capture |
| 08-22 21:39 | 20m | -4 / - | EA8UP | - / - | 7 | Partial capture |
| 06-29 15:23 | 10m | - / -7 | IQ4JO | 0 / - | 3 | ✓ Closing fragment |
| 06-29 15:18 | 10m | - / +8 | IU4QRO | +8 / - | 4 | ✓ Closing fragment |
| 06-27 12:28 | 10m | - / -16 | M0BEW | -18 / - | 3 | Partial capture |
| 06-27 12:27 | 10m | - / - | OH3OJ | -6 / - | 5 | Partial capture |
| 06-27 12:23 | 10m | -17 / - | EA3DYI | - / -7 | 3 | ✓ Closing fragment |
| 06-27 12:22 | 10m | - / -15 | M0BEW | -16 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 122900 -20 1885 DJ7JC M0BEW -18 122915 -24 1884 CQ DJ7JC JO31 122930 -7 429 DJ7JC OH3OJ KP20 151800 +8 2697 DJ7JC IU4QRO JN54 151800 +2 2865 DJ7JC IQ4JO JN63 151830 +7 2697 DJ7JC IU4QRO JN54 (x3) 152045 -10 2696 CQ DJ7JC JO31 a1 (x2) 152330 +0 2865 DJ7JC IQ4JO JN63 (x3) 140845 -12 2499 YB1MR DJ7JC JO31 111345 -8 2497 CQ DJ7JC JO31
UTC dB Audio Message 214245 -9 2508 EA8UP DJ7JC JO31 (x2) 214515 -10 2508 LB4PJ/MM DJ7JC (x4) 055730 -6 2512 DJ7JC LZ2VQ KN23 (x3) 204715 -5 2509 KC1EPL DJ7JC JO31 (x3) 205045 -3 2509 CU2JX DJ7JC JO31 205115 +0 2509 VP2VKC DJ7JC JO31 (x2)
UTC dB Audio Message 053700 -16 1792 DJ7JC DL6RDE +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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