CT1APP — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving CT1APP, decoded by SO8OO in southeastern Poland. 454 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 32 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-09-07.
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 454 FT8 messages attributed to CT1APP as the transmitting token by decoded message structure across 32 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (95%), followed by 40 m (5%). Most decodes (61%) fell within the six-hour window 16:00-22:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (82%); the estimated median was -4 dB.
Overview
Bands
Last attributed message: 2026-09-07 23:35 UTC
Observed FT8 message patterns
- Attributed sample
- 454 messages
- Active dates
- 32 UTC dates
- Estimated median S/N
- -4 dB
- Estimated 10th-90th percentile
- -11 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 6, moderate (-15 to -9 dB) 77, strong (≥ -8 dB) 371.
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 CT1APP 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 CT1APP
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
- IM67 · 263 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,671 km (approx.)
- Last such locator decoded
- 2026-08-31 16:53 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 | CT1APP S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-07 23:34 | 40m | -7 / -15 | CR7BRV | -4 / +4 | 4 | ✓ Full exchange observed |
| 09-07 23:29 | 40m | - / -14 | A61FJ | -17 / - | 2 | ✓ Closing fragment |
| 08-31 22:31 | 40m | - / -12 | DF8RU | +8 / - | 3 | ✓ Closing fragment |
| 08-30 18:09 | 20m | -6 / - | RU3QR | - / -9 | 2 | ✓ Closing fragment |
| 08-30 18:07 | 20m | -2 / - | YB0KEM | - / - | 2 | Partial capture |
| 08-29 22:37 | 40m | -15 / -20 | R4FBT | -6 / - | 2 | ✓ Closing observed |
| 08-29 22:34 | 40m | - / -16 | IW2DNI | +4 / - | 3 | ✓ Closing fragment |
| 08-29 19:10 | 20m | -3 / - | BG8HNC | - / - | 3 | Partial capture |
| 08-29 19:09 | 20m | -2 / - | E75C | - / -14 | 2 | ✓ Closing fragment |
| 08-28 11:58 | 20m | -11 / -14 | LA6OCA | -1 / -17 | 5 | ✓ Full exchange observed |
| 08-28 11:57 | 20m | -12 / - | CU2JX | - / - | 2 | Partial capture |
| 08-28 11:49 | 20m | -7 / - | CU2JX | - / - | 2 | Partial capture |
| 08-27 17:04 | 20m | - / +4 | F4ACR | +7 / - | 3 | ✓ Closing fragment |
| 08-27 16:58 | 20m | -3 / - | A61FJ | -5 / - | 2 | ✓ Closing observed |
| 08-27 16:58 | 20m | -6 / - | OE7MAH | -21 / - | 2 | ✓ Closing observed |
| 08-27 16:53 | 20m | -5 / - | A61FJ | - / -2 | 4 | Partial capture |
| 08-27 16:52 | 20m | -6 / - | EY7BP | - / - | 3 | Partial capture |
| 08-27 11:38 | 20m | - / +8 | EA4IFO | -18 / - | 2 | Partial capture |
| 08-27 11:37 | 20m | - / - | DL9MY | +19 / - | 3 | Partial capture |
| 08-27 09:01 | 20m | - / - | KA1DCB | -13 / - | 2 | Partial capture |
| 08-25 22:31 | 40m | - / -12 | DL1ESZ | 0 / - | 3 | ✓ Closing fragment |
| 08-25 22:31 | 40m | - / -16 | UA4FKT | +9 / - | 4 | ✓ Closing fragment |
| 08-25 22:27 | 40m | -12 / - | D2ACE | - / - | 2 | Partial capture |
| 08-25 22:24 | 40m | - / -16 | HZ1TT | -6 / - | 2 | ✓ Closing fragment |
| 08-25 18:50 | 20m | -2 / - | RU3KV | - / +1 | 2 | ✓ Closing fragment |
| 08-25 18:49 | 20m | -6 / - | BI4XDT | -7 / +2 | 3 | ✓ Closing observed |
| 08-25 18:47 | 20m | -4 / - | JF1LMB | - / - | 2 | Partial capture |
| 08-25 18:44 | 20m | -4 / -2 | UN0GY | -4 / +5 | 6 | ✓ Full exchange observed |
| 08-25 18:42 | 20m | +2 / - | R7FN | -11 / -5 | 3 | ✓ Closing observed |
| 08-25 18:40 | 20m | -2 / - | BG4UCZ | - / -5 | 4 | ✓ Closing fragment |
| 08-25 18:26 | 20m | -1 / - | BG4UCZ | - / - | 2 | Partial capture |
| 08-25 16:24 | 20m | -10 / - | BG4UCZ | - / - | 2 | Partial capture |
| 08-25 16:21 | 20m | -5 / -17 | 9K2MP | -3 / - | 2 | ✓ Closing observed |
| 08-25 16:18 | 20m | -11 / - | EX7DY | - / - | 2 | Partial capture |
| 08-25 16:17 | 20m | -8 / - | DL1UDO | - / -8 | 2 | Partial capture |
| 08-25 12:36 | 20m | -6 / - | R2FDP/P | - / - | 2 | Partial capture |
| 08-25 12:34 | 20m | 0 / - | AD9GE | - / - | 3 | Partial capture |
| 08-25 12:32 | 20m | -2 / - | UT7UJ | - / -13 | 3 | ✓ Closing fragment |
| 08-25 12:30 | 20m | +2 / - | EA6EJ | - / - | 3 | Partial capture |
| 08-25 12:28 | 20m | -4 / - | E75W | - / -8 | 2 | ✓ Closing fragment |
| 08-25 12:27 | 20m | -8 / +4 | F4AWT | +11 / - | 5 | ✓ Full exchange observed |
| 08-25 12:24 | 20m | -8 / - | LX1NT | - / - | 4 | ✓ Closing fragment |
| 08-25 12:15 | 20m | -3 / - | R2FDP/P | - / - | 2 | Partial capture |
| 08-25 12:11 | 20m | -7 / -2 | F4AWT | +14 / - | 7 | ✓ Full exchange observed |
| 08-24 15:58 | 20m | +9 / - | OH6IH | - / -4 | 2 | Partial capture |
| 08-24 13:23 | 20m | -6 / - | YO9PH | - / -5 | 2 | ✓ Closing fragment |
| 08-24 13:19 | 20m | -6 / - | JA5SUD | - / - | 7 | Partial capture |
| 08-24 13:18 | 20m | -5 / -10 | RN6MA | +18 / +7 | 4 | ✓ Full exchange observed |
| 08-24 13:16 | 20m | -6 / - | UT3SO | - / - | 3 | Partial capture |
| 08-24 11:24 | 20m | -4 / - | ON1JP | -20 / - | 2 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 223430 -6 2706 CT1APP M0SCK IO83 223430 +3 2563 CT1APP IW2DNI JN45 (x3) 223730 -6 2031 CT1APP R4FBT -20 223815 -15 2707 R4FBT CT1APP 73 223145 +5 2639 CT1APP DF8RU JN68 (x3) 232900 -16 1869 CT1APP A61FJ -14 (x2) 233415 -3 989 CT1APP CR7BRV -15 233430 -7 2665 CR7BRV CT1APP R+04 233445 -6 989 CT1APP CR7BRV RR73 233500 -7 2665 CR7BRV CT1APP 73
UTC dB Audio Message 190900 -2 2714 E75C CT1APP R-14 (x2) 191000 -6 2714 CQ CT1APP IM67 191030 -4 2715 BG8HNC CT1APP IM67 (x3) 191200 -1 2715 CQ CT1APP IM67 180630 +1 2743 R2FAQ CT1APP IM67 180730 -3 2743 YB0KEM CT1APP IM67 (x2) 180830 -1 2679 CQ CT1APP IM67 180900 -8 2679 RU3QR CT1APP R-09 (x2) 181000 -4 2679 RA3GLP CT1APP R-03 165300 +9 2814 UN3P CT1APP IM67
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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