CT7AIU — 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 CT7AIU, decoded by SO8OO in southeastern Poland. 2,806 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 37 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-19.
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 2,806 FT8 messages attributed to CT7AIU as the transmitting token by decoded message structure across 37 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (39%), followed by 60 m (22%) and 20 m (16%). Most decodes (97%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.
Overview
Bands
Last attributed message: 2026-10-19 16:47 UTC
Observed FT8 message patterns
- Attributed sample
- 2,806 messages
- Active dates
- 37 UTC dates
- Estimated median S/N
- -12 dB
- Estimated 10th-90th percentile
- -18 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 604, moderate (-15 to -9 dB) 1,375, strong (≥ -8 dB) 827.
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 CT7AIU 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 CT7AIU
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 · 2,035 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,671 km (approx.)
- Last such locator decoded
- 2026-10-19 16:47 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 | CT7AIU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-19 16:29 | 10m | -8 / - | N0XLF | - / -8 | 2 | ✓ Closing fragment |
| 10-19 16:11 | 10m | -6 / - | PY2VE | - / -19 | 2 | ✓ Closing fragment |
| 10-19 15:26 | 10m | -21 / - | YO3BMI | - / -11 | 4 | Partial capture |
| 10-19 15:18 | 10m | -17 / - | AI5QR | - / -13 | 3 | ✓ Closing fragment |
| 10-19 15:15 | 10m | -20 / - | KE2HPS | - / +4 | 3 | ✓ Closing fragment |
| 10-19 14:42 | 10m | -23 / - | UT8SQ | - / +1 | 2 | ✓ Closing fragment |
| 10-16 19:38 | 40m | - / - | TA3BJK | -10 / - | 2 | Partial capture |
| 10-14 21:28 | 40m | -8 / - | DA0M | - / -17 | 2 | ✓ Closing fragment |
| 10-14 21:16 | 40m | -11 / -11 | R6FCU | +2 / +3 | 4 | ✓ Full exchange observed |
| 10-14 21:02 | 40m | -8 / - | LB7UK | - / -5 | 3 | ✓ Closing fragment |
| 10-14 21:00 | 40m | -10 / - | PD1EG | - / 0 | 8 | ✓ Closing fragment |
| 10-14 20:56 | 40m | - / -1 | M1JYN | -21 / - | 3 | ✓ Closing fragment |
| 10-14 20:52 | 40m | -12 / - | DF9DL | - / -19 | 2 | Partial capture |
| 10-14 20:48 | 40m | -10 / - | F4HKP | -2 / 0 | 6 | Partial capture |
| 10-14 20:41 | 40m | -12 / - | DL2KCW | - / -4 | 2 | Partial capture |
| 10-14 20:38 | 40m | -6 / -13 | RU4CK | -4 / -6 | 4 | ✓ Full exchange observed |
| 10-14 20:26 | 40m | -11 / - | YE4FHY | - / -4 | 2 | ✓ Closing fragment |
| 10-14 20:25 | 40m | -11 / - | SP2SGZ | - / -9 | 3 | ✓ Closing fragment |
| 10-14 20:22 | 40m | -6 / - | DL6ZAJ | - / -12 | 2 | ✓ Closing fragment |
| 10-14 20:17 | 40m | -10 / - | SQ3GM | - / -20 | 2 | ✓ Closing fragment |
| 10-14 20:16 | 40m | - / - | F4HKP | 0 / - | 8 | Partial capture |
| 10-14 20:09 | 40m | -11 / - | SP2KW | - / -14 | 2 | ✓ Closing fragment |
| 10-14 20:08 | 40m | -8 / - | IN3ZWF | - / -5 | 2 | ✓ Closing fragment |
| 10-14 20:07 | 40m | -7 / -7 | M6UCD | -21 / - | 2 | ✓ Closing observed |
| 10-14 20:00 | 40m | -8 / -14 | CT1BFP | -15 / - | 4 | ✓ Closing observed |
| 10-14 19:58 | 40m | - / +10 | M7KEV | -10 / - | 2 | Partial capture |
| 10-14 19:56 | 40m | -14 / - | SP3OZW | - / -16 | 2 | ✓ Closing fragment |
| 10-14 19:51 | 40m | -18 / +5 | EA3IE | -15 / +1 | 2 | Partial capture |
| 10-14 19:46 | 40m | - / -7 | IK2GXE | +1 / - | 5 | ✓ Closing fragment |
| 10-14 19:39 | 40m | -16 / - | DF3AS | - / -21 | 2 | ✓ Closing fragment |
| 10-14 19:37 | 40m | -15 / -1 | M6DPS | -18 / -8 | 4 | ✓ Full exchange observed |
| 10-14 19:34 | 40m | -14 / -16 | PA1PXL | 0 / -3 | 6 | ✓ Full exchange observed |
| 10-14 19:29 | 40m | -13 / - | UA1AJY | - / -12 | 2 | ✓ Closing fragment |
| 10-14 19:20 | 40m | -13 / -1 | F3CJ | -18 / 0 | 3 | ✓ Full exchange observed |
| 10-14 19:19 | 40m | -12 / - | PD1GO | -12 / -4 | 2 | Partial capture |
| 10-14 19:16 | 40m | -15 / - | CT1BFP | -11 / -8 | 9 | Partial capture |
| 10-14 19:14 | 40m | -9 / -3 | PD1GO | -8 / 0 | 4 | Partial capture |
| 10-14 19:14 | 40m | -12 / -13 | DL9FFM | -14 / -25 | 3 | Partial capture |
| 10-11 21:28 | 80m | - / -2 | ER5GB | -2 / - | 2 | ✓ Closing fragment |
| 10-11 21:27 | 80m | - / - | DO3VE | +11 / - | 3 | Partial capture |
| 10-11 21:25 | 80m | -9 / -6 | T77RN | -7 / - | 2 | Partial capture |
| 10-11 21:17 | 80m | -16 / -3 | DL9KM | -11 / -18 | 6 | ✓ Full exchange observed |
| 10-11 21:10 | 80m | -12 / - | IK0ISD | - / -13 | 2 | ✓ Closing fragment |
| 10-11 21:08 | 80m | - / -23 | SP8EE | -12 / - | 4 | ✓ Closing fragment |
| 10-11 21:04 | 80m | -10 / -14 | YO2UKG | -12 / 0 | 4 | ✓ Full exchange observed |
| 10-11 21:02 | 80m | -13 / - | DO3VE | +10 / 0 | 5 | Partial capture |
| 10-11 21:01 | 80m | -14 / -10 | F4JYH | -20 / 0 | 7 | ✓ Full exchange observed |
| 10-11 21:01 | 80m | -8 / -4 | YO2UKG | -15 / 0 | 4 | ✓ Full exchange observed |
| 10-11 20:57 | 80m | - / - | SP3PAT | -7 / - | 2 | Partial capture |
| 10-11 20:46 | 80m | - / - | OZ8XZL | -22 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 162245 -12 294 CQ CT7AIU IM67 162315 -7 294 YO9AEQ CT7AIU +08 162915 -10 295 CQ CT7AIU IM67 a1 162945 -5 294 N0XLF CT7AIU -08 (x2) 163115 -9 294 CQ CT7AIU IM67 (x3) 163445 -13 295 HA7KPI CT7AIU RR73 163545 -12 295 CQ CT7AIU IM67 163645 -12 294 SV1SUO CT7AIU +11 163900 -12 2496 CT7AIU CR7BUW IM58 164545 -11 294 CQ CT7AIU IM67 (x3)
UTC dB Audio Message 212545 -9 1206 CQ CT7AIU IM67 (x5) 212815 -8 1206 DA0M CT7AIU -17 212845 -4 1206 CQ CT7AIU IM67 212915 -9 1206 DA0M CT7AIU RR73 212945 -14 1206 CQ CT7AIU IM67 (x4) 213215 -11 1206 K9KA CT7AIU +00 193830 -11 732 CT7AIU TA3BJK KM38 (x2)
UTC dB Audio Message 212215 -11 1192 CQ CT7AIU IM67 (x5) 212515 -9 1192 T77RN CT7AIU IM67 212545 -9 1192 CQ CT7AIU IM67 212600 -7 2465 CT7AIU T77RN -06 212615 -10 1192 CQ CT7AIU IM67 212630 -24 1191 CT7AIU G3TKT IO92 212700 +11 610 CT7AIU DO3VE JO52 (x2) 212800 -2 1191 CT7AIU ER5GB R-02 212800 +10 610 CT7AIU DO3VE JO52 212830 -3 1191 CT7AIU ER5GB 73
UTC dB Audio Message 213115 -13 1206 EA5IEZ CT7AIU -01 (x2) 213215 -16 1206 CQ CT7AIU IM67 a1 (x3) 213345 -11 1206 OH5KNL CT7AIU -21 (x2) 213430 -21 1969 CT7AIU OH5KNL 73 213445 -11 1206 CQ CT7AIU IM67 (x7)
UTC dB Audio Message 212700 -12 712 CQ CT7AIU IM67 (x11) 213515 -14 2139 CT7AIU EI8HY IO63 (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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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