IZ1CRA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving IZ1CRA, decoded by SO8OO in southeastern Poland. 285 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 23 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-15.
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 285 FT8 messages attributed to IZ1CRA as the transmitting token by decoded message structure across 23 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (37%), followed by 40 m (36%) and 10 m (27%). The busiest six-hour window was 12:00-18:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -16 dB.
Overview
Bands
Last attributed message: 2026-09-15 19:42 UTC
Observed FT8 message patterns
- Attributed sample
- 285 messages
- Active dates
- 23 UTC dates
- Estimated median S/N
- -16 dB
- Estimated 10th-90th percentile
- -22 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 153, moderate (-15 to -9 dB) 96, strong (≥ -8 dB) 36.
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 IZ1CRA 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 IZ1CRA
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
- JN35 · 217 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,209 km (approx.)
- Last such locator decoded
- 2026-09-15 19:42 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 | IZ1CRA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 19:34 | 40m | -2 / - | SN1A | - / -2 | 2 | ✓ Closing fragment |
| 09-14 20:54 | 40m | -3 / -8 | SV9QWC | -17 / -3 | 7 | ✓ Full exchange observed |
| 09-14 20:33 | 40m | +2 / - | TA3TCW | - / -19 | 3 | ✓ Closing fragment |
| 09-14 20:17 | 40m | -5 / -14 | 2E0UMK | -6 / -10 | 3 | ✓ Full exchange observed |
| 09-10 09:10 | 40m | - / - | DN2FBG | -22 / - | 2 | Partial capture |
| 09-10 08:53 | 40m | - / - | HA3HZ | -11 / - | 2 | Partial capture |
| 09-10 08:49 | 40m | - / - | HA3HZ | -10 / - | 2 | Partial capture |
| 09-10 08:45 | 40m | - / - | S51PV | -20 / - | 2 | Partial capture |
| 09-08 15:58 | 40m | - / -1 | IZ5RKH | 0 / - | 3 | ✓ Closing fragment |
| 09-08 15:42 | 40m | - / - | DL7VAR | +8 / - | 4 | Partial capture |
| 09-08 15:40 | 40m | - / -3 | DL9YNG | -10 / - | 3 | ✓ Closing fragment |
| 09-08 15:38 | 40m | - / - | DM5WH | -6 / - | 2 | Partial capture |
| 09-08 15:33 | 40m | - / 0 | F1RCQ | -15 / - | 3 | Partial capture |
| 09-08 15:25 | 40m | -19 / -7 | II4PAGE | -18 / - | 2 | Partial capture |
| 09-08 15:24 | 40m | -18 / +2 | IW0FGX | -10 / - | 3 | ✓ Closing observed |
| 09-01 07:23 | 40m | - / +6 | DL8DCM | -10 / - | 4 | ✓ Closing fragment |
| 09-01 07:16 | 40m | - / - | PD1ADA | -21 / - | 4 | Partial capture |
| 09-01 07:13 | 40m | - / - | DG3AWF | -12 / - | 3 | Partial capture |
| 09-01 06:42 | 40m | - / - | DB1TH | +12 / - | 2 | Partial capture |
| 09-01 06:40 | 40m | -21 / - | ON4KEB | -10 / +6 | 3 | ✓ Closing observed |
| 09-01 06:34 | 40m | -16 / - | SP9W | - / +1 | 2 | ✓ Closing fragment |
| 09-01 06:34 | 40m | - / - | DL9KM | 0 / - | 7 | Partial capture |
| 09-01 06:31 | 40m | - / -18 | MI0NWA | -19 / - | 5 | Partial capture |
| 09-01 06:28 | 40m | -16 / - | EA1CQ | - / 0 | 2 | ✓ Closing fragment |
| 09-01 06:28 | 40m | - / - | DL9RBV | -5 / - | 2 | Partial capture |
| 09-01 06:27 | 40m | - / - | DH3KR | -7 / - | 2 | Partial capture |
| 09-01 06:27 | 40m | - / -5 | 9A60CBM | +2 / - | 2 | Partial capture |
| 09-01 06:20 | 40m | -18 / - | MI0NWA | - / - | 3 | Partial capture |
| 08-31 19:58 | 20m | - / - | F4BYA | +5 / - | 4 | Partial capture |
| 08-31 19:37 | 20m | -18 / -10 | M8FQT | -1 / - | 4 | ✓ Closing observed |
| 08-31 19:36 | 20m | - / - | F4BYA | +7 / - | 4 | Partial capture |
| 08-31 19:34 | 20m | - / -20 | EA3CFV | -3 / - | 4 | ✓ Closing fragment |
| 08-31 19:32 | 20m | - / - | F4BYA | +6 / - | 4 | Partial capture |
| 08-31 19:10 | 20m | - / - | DF6WE | +7 / - | 2 | Partial capture |
| 08-31 18:51 | 20m | -16 / - | KJ1R | - / -8 | 2 | Partial capture |
| 08-30 16:17 | 20m | -14 / - | IK1WEG/QRP | - / -7 | 2 | Partial capture |
| 08-29 14:07 | 20m | - / - | G3MOT | -18 / - | 2 | Partial capture |
| 08-29 14:06 | 20m | - / - | F4AXK | -10 / - | 4 | Partial capture |
| 08-29 13:46 | 20m | - / - | F4AXK | -3 / - | 18 | Partial capture |
| 08-29 13:44 | 20m | - / -7 | PA5TG | -18 / - | 2 | ✓ Closing fragment |
| 08-29 13:26 | 20m | -9 / - | G7SQW | -3 / -3 | 2 | ✓ Closing observed |
| 08-26 16:48 | 40m | -12 / - | ON3RDH | - / -1 | 2 | ✓ Closing fragment |
| 08-26 16:48 | 40m | -10 / - | M9TMC | -22 / -15 | 6 | ✓ Closing observed |
| 08-26 16:45 | 40m | - / - | IK2EBP | -12 / - | 2 | ✓ Closing fragment |
| 08-26 16:32 | 40m | - / +4 | OK2PAK | +3 / - | 4 | Partial capture |
| 08-26 16:26 | 40m | - / +1 | DF5DY | -2 / - | 3 | ✓ Closing fragment |
| 08-26 16:02 | 40m | - / -6 | E70SZ | -3 / - | 3 | ✓ Closing fragment |
| 08-26 16:01 | 40m | - / -7 | F1PBZ | -1 / - | 2 | Partial capture |
| 08-16 10:00 | 10m | -20 / - | IU2SOK | - / -21 | 2 | ✓ Closing fragment |
| 08-11 12:59 | 20m | - / - | PD0PET | -13 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 203300 +1 429 TA3TCW IZ1CRA JN35 (x3) 205445 -3 428 SV9QWC IZ1CRA JN35 205500 -19 1040 IZ1CRA SV9QWC -08 205515 -7 428 SV9QWC IZ1CRA R-03 205530 -22 1040 IZ1CRA SV9QWC -08 205545 -4 428 SV9QWC IZ1CRA R-03 205630 -11 1040 IZ1CRA SV9QWC RR73 205645 +2 428 SV9QWC IZ1CRA 73 191415 +2 429 CQ IZ1CRA JN35 (x2) 193445 +4 429 SN1A IZ1CRA -02 (x2) 194215 -4 429 DR800WE IZ1CRA JN35
UTC dB Audio Message 193815 -3 993 IZ1CRA M8FQT R-10 193830 -18 993 M8FQT IZ1CRA RR73 193845 +1 993 IZ1CRA M8FQT 73 193930 -20 993 CQ IZ1CRA JN35 a1 (x5) 194430 -16 993 DG5PW IZ1CRA RR73 194500 -18 993 CQ IZ1CRA JN35 195715 +8 1930 IZ1CRA G4DBW JO01 195815 +3 2413 IZ1CRA F4BYA JN19 (x4)
UTC dB Audio Message 075630 -24 1786 CQ IZ1CRA JN35 075745 -18 2040 IZ1CRA PD1ADA JO21 (x2) 075830 -24 1786 CQ IZ1CRA JN35 075845 -19 2043 IZ1CRA PD1ADA JO21 075900 -24 1786 CQ IZ1CRA JN35 195045 -10 1780 IZ1CRA EA8UP -18 (x4) 100045 -21 1190 IU2SOK IZ1CRA R-21 (x2) 100145 -18 1189 CQ IZ1CRA JN35 (x3)
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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