DC7CW — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DC7CW, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-18 and 2026-09-13.
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 19 FT8 messages attributed to DC7CW as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (68%), followed by 40 m (32%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-13 13:36 UTC
Observed FT8 message patterns
- Attributed sample
- 19 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -21 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 16, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 1.
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 DC7CW in decoded directed-looking exchanges:
Most frequent locator attributed to DC7CW
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
- JO62 · 15 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 675 km (approx.)
- Last such locator decoded
- 2026-09-13 13:35 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 | DC7CW S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 13:41 | 40m | - / -5 | OM4KK | -1 / - | 2 | ✓ Closing fragment |
| 09-13 13:39 | 40m | - / -2 | SQ9BDB | -6 / - | 3 | ✓ Closing fragment |
| 09-13 13:36 | 40m | -14 / -15 | DK0KG | -17 / +7 | 4 | ✓ Full exchange observed |
| 09-13 13:30 | 40m | -22 / - | DL1NB | -18 / - | 3 | ✓ Closing observed |
| 09-10 06:42 | 40m | - / -7 | EW6DM | -17 / - | 9 | Partial capture |
| 07-18 13:57 | 20m | - / -10 | IW4DNI | -17 / - | 3 | ✓ Closing fragment |
| 07-18 13:41 | 20m | - / -14 | EB1LA | -20 / - | 2 | ✓ Closing fragment |
| 07-18 13:31 | 20m | - / - | PD1ADA | -14 / - | 3 | Partial capture |
| 07-18 13:08 | 10m | - / -18 | F4LNM | -8 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 064745 -15 1868 DC7CW EW6DM -07 133030 -20 1491 DL1NB DC7CW R+12 133045 -18 1036 DC7CW DL1NB RR73 133100 -24 1491 DL1NB DC7CW 73 133130 -21 1501 PD8MD DC7CW JO62 133530 -18 2042 CQ DC7CW JO62 133600 -18 2042 DK0KG DC7CW +07 133615 -16 1557 DC7CW DK0KG R-15 133630 -10 1049 DK0KG DC7CW RR73 133645 -18 1557 DC7CW DK0KG 73 133915 -7 2339 DC7CW SQ9BDB -02 (x3) 134115 -1 1146 DC7CW OM4KK -05 (x2)
UTC dB Audio Message 115830 -24 1670 CQ DC7CW JO62 (x2) 133145 -17 2033 DC7CW PD1ADA JO21 (x3) 134145 -22 1564 DC7CW EB1LA R-14 (x2) 135745 -22 1674 DC7CW IW4DNI JN44 (x3) 152230 -16 1363 CQ DC7CW JO62 (x5)
UTC dB Audio Message 130845 -9 1692 DC7CW F4LNM JN09 (x3)
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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