CT3CK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving CT3CK, decoded by SO8OO in southeastern Poland. 58 FT8 messages attributed to this token as transmitter, on 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-08 and 2026-08-29.
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 58 FT8 messages attributed to CT3CK as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (84%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's weak S/N range (67%); the estimated median was -18 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 58 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -18 dB
- Estimated 10th-90th percentile
- -23 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 14, strong (≥ -8 dB) 5.
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 CT3CK 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 CT3CK
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
- IM12 · 24 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 3,720 km (approx.)
- Last such locator decoded
- 2026-08-29 21:40 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 | CT3CK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 21:43 | 20m | - / -20 | ZY7F | -16 / - | 3 | ✓ Closing fragment |
| 08-29 21:41 | 20m | - / - | IK0ISD | -18 / - | 2 | Partial capture |
| 08-29 21:36 | 20m | -19 / - | IK4LZH | - / +10 | 2 | ✓ Closing fragment |
| 08-29 21:31 | 20m | -18 / - | PD0PY | - / -17 | 3 | ✓ Closing fragment |
| 08-29 21:28 | 20m | -19 / - | W4UTZ | - / -14 | 2 | ✓ Closing fragment |
| 08-29 21:13 | 20m | - / -10 | SV5BYP | -10 / - | 3 | ✓ Closing fragment |
| 08-29 21:00 | 20m | -15 / - | IS0KNY | - / -8 | 3 | ✓ Closing fragment |
| 08-29 20:59 | 20m | -18 / -4 | 9A4V | -10 / +9 | 4 | ✓ Full exchange observed |
| 08-29 20:56 | 20m | -15 / - | PY2TIM | -19 / - | 2 | ✓ Closing observed |
| 08-29 20:55 | 20m | - / - | IN3ZWF | -2 / - | 2 | Partial capture |
| 08-29 20:54 | 20m | -20 / -2 | F1PBZ | -12 / -5 | 5 | ✓ Full exchange observed |
| 08-29 20:50 | 20m | -8 / - | M0LAD | - / -12 | 2 | ✓ Closing fragment |
| 08-29 20:47 | 20m | - / - | OK2CNI | -16 / - | 4 | Partial capture |
| 08-29 20:47 | 20m | -10 / - | K4LOY | - / -14 | 4 | ✓ Closing fragment |
| 08-25 08:44 | 20m | - / -17 | F5IXN | +2 / - | 2 | ✓ Closing fragment |
| 08-22 09:04 | 20m | - / -9 | MI9PBM | -3 / - | 7 | ✓ Closing fragment |
| 08-22 08:55 | 20m | - / - | M0IOW | -11 / - | 3 | Partial capture |
| 08-22 08:17 | 20m | - / -18 | CT3MD | -13 / - | 4 | ✓ Closing fragment |
| 08-21 20:46 | 20m | - / - | DL1R | +15 / - | 9 | Partial capture |
| 08-21 20:42 | 20m | - / - | DM4GG | +12 / - | 2 | Partial capture |
| 08-17 08:30 | 20m | - / -15 | IK4LZH | +3 / - | 4 | Partial capture |
| 08-17 08:29 | 20m | - / -20 | UT7UJ | +6 / - | 3 | ✓ Closing fragment |
| 08-16 09:55 | 20m | - / - | DL6FKR | 0 / - | 2 | Partial capture |
| 08-16 09:50 | 20m | - / -24 | DM2GG | -10 / - | 9 | ✓ Closing fragment |
| 08-16 09:46 | 20m | - / -14 | IU8WRA | -22 / - | 2 | Partial capture |
| 08-16 09:45 | 20m | - / - | DM2GG | -7 / - | 5 | Partial capture |
| 08-16 09:41 | 20m | - / -15 | 9A6NCC | -18 / - | 2 | Partial capture |
| 08-16 09:41 | 20m | - / -18 | DL9ML | -7 / - | 11 | Partial capture |
| 08-16 09:40 | 20m | - / - | DL6FKR | +1 / - | 3 | Partial capture |
| 08-16 09:36 | 20m | - / - | DL6FKR | 0 / - | 3 | Partial capture |
| 08-10 11:20 | 20m | - / - | DL1R | -9 / - | 2 | Partial capture |
| 08-10 11:19 | 20m | - / - | PA0GDL | -22 / - | 2 | Partial capture |
| 08-09 08:13 | 20m | - / -11 | PD0RCQ | -20 / - | 2 | ✓ Closing fragment |
| 08-09 08:06 | 20m | - / -13 | UR5VPR | -23 / - | 2 | ✓ Closing fragment |
| 08-05 22:00 | 20m | - / -16 | OZ1BW | -9 / - | 5 | Partial capture |
| 07-31 08:26 | 20m | - / -16 | M9PMB | -13 / - | 2 | Partial capture |
| 07-29 12:13 | 20m | - / -10 | PE9JAN | -23 / - | 3 | Partial capture |
| 07-27 08:47 | 20m | - / - | PA0MUS | -24 / - | 2 | Partial capture |
| 07-27 08:43 | 20m | - / - | PD1ADA | -18 / - | 2 | Partial capture |
| 07-27 08:42 | 20m | - / -5 | RL6MT | -7 / - | 3 | ✓ Closing fragment |
| 07-27 08:41 | 20m | - / -2 | G4DBW | -10 / - | 2 | Partial capture |
| 07-27 08:38 | 20m | - / -9 | M7IUN | -12 / - | 4 | Partial capture |
| 07-27 08:36 | 20m | - / - | DG6TOM | -15 / - | 4 | Partial capture |
| 07-27 08:32 | 20m | -20 / - | <...> | - / -22 | 3 | Partial capture |
| 07-26 08:56 | 20m | - / -17 | F1ODM | -10 / - | 3 | Partial capture |
| 07-26 08:47 | 20m | - / -5 | M0VGB | -7 / - | 11 | ✓ Closing fragment |
| 07-26 08:36 | 20m | - / - | PD1PSR | -12 / - | 2 | Partial capture |
| 07-22 07:46 | 20m | - / -14 | UZ5CA | +1 / - | 4 | Partial capture |
| 07-22 07:36 | 20m | - / -6 | RN6MA | -16 / - | 2 | ✓ Closing fragment |
| 07-22 07:29 | 20m | - / - | YO2MHF | -20 / - | 6 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 213230 -18 1459 PD0PY CT3CK 73 213300 -14 1459 CQ CT3CK IM12 213330 -19 1459 DH2RL CT3CK -09 213430 -23 1459 CQ CT3CK IM12 a1 213630 -23 1460 IK4LZH CT3CK +10 (x2) 213900 -23 1460 VK4MDP CT3CK RR73 213930 -19 1460 CQ CT3CK IM12 (x2) 214145 -17 1801 CT3CK IK0ISD JN62 (x2) 214345 -16 1735 CT3CK ZY7F HI06 (x3) 214445 -8 2497 CT3CK IU4WSH JN44
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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