C31CT — 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 C31CT, decoded by SO8OO in southeastern Poland. 1,129 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 28 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-11-02.
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 1,129 FT8 messages attributed to C31CT as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (29%), followed by 160 m (22%) and 40 m (22%). Most decodes (100%) fell within the six-hour window 18:00-00:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -10 dB.
Overview
Bands
Last attributed message: 2026-11-02 19:27 UTC
Observed FT8 message patterns
- Attributed sample
- 1,129 messages
- Active dates
- 28 UTC dates
- Estimated median S/N
- -10 dB
- Estimated 10th-90th percentile
- -18 to -2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 229, moderate (-15 to -9 dB) 480, strong (≥ -8 dB) 420.
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 C31CT 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 C31CT
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
- JN02 · 156 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,792 km (approx.)
- Last such locator decoded
- 2026-11-02 19:27 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 | C31CT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-03 19:30 | 160m | - / - | OE8MOS | -2 / - | 6 | Partial capture |
| 11-03 19:28 | 160m | - / -10 | HA1TNX | +20 / - | 3 | ✓ Closing fragment |
| 11-03 19:28 | 160m | - / - | SQ9PBV | 0 / - | 2 | Partial capture |
| 11-03 19:15 | 80m | - / - | RK6OQ | -6 / - | 2 | Partial capture |
| 11-03 19:14 | 80m | - / -18 | DO1WFW | -11 / - | 3 | Partial capture |
| 11-03 19:10 | 80m | - / - | DK2BK | -7 / - | 2 | Partial capture |
| 11-03 19:10 | 80m | - / - | YL3AQI | +5 / - | 3 | ✓ Closing fragment |
| 11-02 19:29 | 80m | - / +3 | F1PBZ | +2 / - | 2 | Partial capture |
| 11-02 19:29 | 80m | - / -21 | UR7EU | -3 / - | 6 | ✓ Closing fragment |
| 11-02 19:28 | 80m | - / 0 | DB2HA | +1 / - | 5 | ✓ Closing fragment |
| 11-02 19:27 | 80m | - / - | SV7LWI | -24 / - | 2 | Partial capture |
| 11-02 19:17 | 160m | - / - | SP7AH | -8 / - | 2 | Partial capture |
| 11-02 19:16 | 160m | - / - | SM7XON | -12 / - | 7 | Partial capture |
| 11-02 19:16 | 160m | -15 / -20 | R2SDZ | -1 / -5 | 9 | ✓ Full exchange observed |
| 11-02 19:15 | 160m | -15 / -5 | I8OHQ | -7 / -4 | 4 | ✓ Full exchange observed |
| 11-02 19:15 | 160m | - / - | LY2BNL | -8 / - | 3 | Partial capture |
| 11-02 19:15 | 160m | -10 / - | UT2VX | -2 / -24 | 5 | Partial capture |
| 11-02 19:14 | 160m | - / - | SP7AH | -4 / - | 2 | Partial capture |
| 11-02 19:12 | 160m | -15 / -23 | EW6FL | 0 / -16 | 10 | ✓ Full exchange observed |
| 11-02 19:12 | 160m | - / -1 | I8OHQ | -4 / - | 2 | Partial capture |
| 11-02 19:11 | 160m | -16 / - | DM9LSB | -9 / - | 4 | ✓ Closing observed |
| 11-02 19:11 | 160m | - / -6 | DK2LO | -3 / - | 4 | ✓ Closing fragment |
| 11-02 19:11 | 160m | - / - | OH7TV | -6 / - | 2 | Partial capture |
| 11-02 19:09 | 160m | -9 / -11 | OZ6FH | -6 / -13 | 8 | ✓ Full exchange observed |
| 11-02 19:08 | 160m | - / - | R4UA | -6 / - | 4 | Partial capture |
| 11-02 19:06 | 160m | - / - | G4ANS | -23 / - | 2 | Partial capture |
| 11-02 19:06 | 160m | - / - | LY2BNL | -2 / - | 2 | Partial capture |
| 11-02 19:04 | 160m | -16 / -17 | OM1AN | -1 / -13 | 6 | ✓ Full exchange observed |
| 11-02 19:03 | 160m | -14 / - | F4CYH | - / -12 | 2 | ✓ Closing fragment |
| 11-02 19:03 | 160m | - / -14 | LY2BNL | -6 / - | 2 | Partial capture |
| 11-02 19:03 | 160m | - / - | OH6NEQ | -13 / - | 14 | Partial capture |
| 11-02 19:02 | 160m | -15 / +6 | DJ8ES | +1 / -1 | 5 | ✓ Full exchange observed |
| 11-02 19:00 | 160m | - / - | R6DAZ | -13 / - | 2 | Partial capture |
| 11-02 18:59 | 160m | -10 / -24 | SP7IIT | +6 / -20 | 5 | ✓ Full exchange observed |
| 11-02 18:57 | 160m | - / - | LY2BNL | -14 / - | 5 | Partial capture |
| 11-02 18:57 | 160m | - / - | R4UA | -7 / - | 3 | Partial capture |
| 11-02 18:54 | 160m | -18 / -14 | DO9BLX | +8 / 0 | 10 | ✓ Full exchange observed |
| 11-02 18:53 | 160m | -18 / -14 | OE2CAL | -7 / -11 | 8 | ✓ Full exchange observed |
| 11-02 18:53 | 160m | -14 / -1 | OZ5AGJ | -4 / -19 | 8 | ✓ Full exchange observed |
| 11-02 18:52 | 160m | -22 / -18 | RA3SI | -6 / -12 | 12 | ✓ Full exchange observed |
| 11-01 20:37 | 160m | -16 / - | DO7DE | -21 / -12 | 5 | ✓ Closing observed |
| 11-01 20:37 | 160m | - / - | OK5MIK | -4 / - | 2 | Partial capture |
| 11-01 20:37 | 160m | -10 / - | EA4DM | - / -6 | 2 | ✓ Closing fragment |
| 11-01 20:35 | 160m | - / - | SP2JJC | -10 / - | 2 | Partial capture |
| 11-01 20:34 | 160m | - / - | SP9ONC | -9 / - | 3 | Partial capture |
| 11-01 20:34 | 160m | - / -26 | RA3WY | -14 / - | 11 | ✓ Closing fragment |
| 11-01 19:48 | 160m | -18 / -16 | OH2FT | -3 / -8 | 5 | ✓ Full exchange observed |
| 11-01 19:48 | 160m | -16 / - | F4HGF | - / -19 | 2 | ✓ Closing fragment |
| 11-01 19:46 | 80m | - / - | SN9Q | -7 / - | 2 | Partial capture |
| 11-01 19:41 | 160m | - / - | OH1ZK | +10 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 192000 -15 1844 C31CT SM7XON JO87 (x2) 192130 -9 2336 C31CT RL6LP LN17 192800 -1 2168 C31CT SQ9PBV JN99 192800 +17 2377 C31CT HA1TNX JN87 (x2) 192900 -5 2168 C31CT SP9HAB -21 192900 +22 2377 C31CT HA1TNX 73 193000 +0 2168 C31CT SQ9PBV JN99 193000 +2 2697 C31CT OE8MOS JN76 (x6)
UTC dB Audio Message 193130 -9 2239 C31CT IU1TKY JN35 193200 -6 873 C31CT UR7EU R-21 (x2) 191015 -12 1005 C31CT OM5TZ JN97 191045 +6 2216 C31CT YL3AQI KO16 191045 -7 2385 C31CT DK2BK JN49 191115 +9 2216 C31CT YL3AQI KO16 191115 -7 2385 C31CT DK2BK JN49 191245 +1 2216 C31CT YL3AQI 73 191415 -12 2344 C31CT DO1WFW R-18 191515 -7 2214 C31CT RK6OQ KN87 191515 -12 2344 C31CT DO1WFW R-18 191545 -5 2214 C31CT RK6OQ KN87 191545 -17 1754 C31CT OH1TK KP10 191615 -9 2343 C31CT DO1WFW R-12
UTC dB Audio Message 221500 +3 2356 SQ2BXI C31CT -08 (x2) 221545 -11 2419 C31CT JE4YMO PM74 221600 +1 2356 K4LG C31CT R-16 (x2) 221730 +0 2356 KC2BBI C31CT RR73 221745 -20 1919 C31CT JE4YMO PM74 221800 -4 2356 YO3GNF C31CT -10 (x2) 221900 +3 2356 BG5JGG C31CT -13 (x6)
UTC dB Audio Message 203600 -11 2099 CQ C31CT JN02 203615 -9 732 C31CT DF0CT JO43 203800 -18 2099 IK7TOE C31CT 73 203830 -11 2099 CQ C31CT JN02 (x3) 203945 +5 2029 C31CT DL3RL JN59 (x2) 204030 -11 2099 DL3RL C31CT +03 204045 +6 2029 C31CT DL3RL R+11 204100 -11 2099 DL3RL C31CT RR73 204115 +6 2029 C31CT DL3RL 73 204130 -5 2099 IU4TQQ C31CT R-12 204145 -11 2312 C31CT SQ8AA KN19 204200 -4 2099 IU4TQQ C31CT R-12
UTC dB Audio Message 212215 -13 2051 C31CT IU0UAF JN52 212230 -11 2050 JA3ADW C31CT RR73 212245 -13 3039 C31CT JA8EPO QN23 212245 -16 2051 C31CT IU0UAF JN52 212300 -15 2051 W1WCI C31CT -07 212315 -14 1879 C31CT BA3QIQ OM99 212330 -15 2051 W1WCI C31CT RR73 212345 -10 804 C31CT KC1MMC FN34 212415 -10 3039 C31CT JA8EPO QN23 212445 -18 2051 C31CT IU0UAF JN52 212445 -16 2317 C31CT DL3NA R+01 212515 -9 3039 C31CT JA8EPO QN23 212515 -14 2051 C31CT IU0UAF JN52 212545 -10 3039 C31CT JA8EPO QN23 213315 -16 2051 C31CT IU0UAF JN52
UTC dB Audio Message 123845 -24 2126 C31CT RY6O KN87 (x2)
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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