CT7APD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving CT7APD, decoded by SO8OO in southeastern Poland. 39 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-29 and 2026-09-04.
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 39 FT8 messages attributed to CT7APD as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (54%), followed by 80 m (23%) and 40 m (23%). In this small sample, the estimated median decoder S/N was -4 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-04 22:21 UTC
Observed FT8 message patterns
- Attributed sample
- 39 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -13 to +4 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 24.
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 CT7APD in decoded directed-looking exchanges:
Most frequent locator attributed to CT7APD
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
- IN51 · 28 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,546 km (approx.)
- Last such locator decoded
- 2026-09-04 22:20 UTC
Other locator fields attributed to this token: IM51 (1).
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 | CT7APD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-04 22:18 | 160m | -7 / -10 | RI1FJL | -14 / -24 | 6 | Partial capture |
| 09-04 22:11 | 160m | -10 / - | RI1FJL | - / - | 6 | Partial capture |
| 09-04 22:02 | 160m | -11 / - | RI1FJL | - / - | 8 | Partial capture |
| 09-04 22:00 | 160m | - / - | F5UKW | +11 / - | 4 | Partial capture |
| 09-04 01:23 | 80m | - / - | DO9BAU | +6 / - | 4 | Partial capture |
| 09-04 01:18 | 80m | - / +8 | DK7ZT | -8 / - | 5 | Partial capture |
| 09-04 01:18 | 80m | - / - | DO9BAU | +3 / - | 5 | Partial capture |
| 09-04 01:18 | 80m | - / - | EA1IOK | -12 / - | 2 | Partial capture |
| 09-04 01:17 | 80m | -1 / - | RI1FJL | - / -25 | 3 | ✓ Closing fragment |
| 09-04 01:06 | 80m | +2 / - | RI1FJL | - / - | 3 | Partial capture |
| 09-04 01:03 | 80m | -1 / - | RI1FJL | - / - | 3 | Partial capture |
| 08-29 00:57 | 40m | +4 / - | N4JP | - / +2 | 4 | ✓ Closing fragment |
| 08-29 00:55 | 40m | +3 / - | KU4I | - / -4 | 3 | Partial capture |
| 07-09 19:34 | 40m | - / - | OE3JWC | -9 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 220615 -9 2196 RI1FJL CT7APD IN51 (x13) 222100 -14 501 CT7APD RI1FJL -10 222115 -12 2384 RI1FJL CT7APD R-24
UTC dB Audio Message 011830 -9 1115 CT7APD DK7ZT +08 011900 +2 2402 CT7APD DO9BAU JO62 011900 -7 1115 CT7APD DK7ZT +08 011930 +12 2123 CT7APD UA4FKT LO23 011930 -10 570 CT7APD EA1IOK IN62 011930 +2 2402 CT7APD DO9BAU JO62 011930 -7 1115 CT7APD DK7ZT +08 012000 +7 2402 CT7APD DO9BAU JO62 012000 -7 1115 CT7APD DK7ZT +08 012030 +6 2402 CT7APD DO9BAU JO62 012030 -10 1115 CT7APD DK7ZT +08 012300 +2 2402 CT7APD DO9BAU JO62 (x4)
UTC dB Audio Message 193415 -10 369 CT7APD OE3JWC RR73 (x2) 053630 -13 920 CT7APD <...> -16 005415 +3 512 CQ CT7APD IN51 (x2) 005515 +0 512 KU4I CT7APD -04 (x3) 005630 -17 1058 CT7APD UN7PPV -17 005715 +6 512 N4JP CT7APD +02 (x4)
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