JA0CRI — 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 JA0CRI, decoded by SO8OO in southeastern Poland. 34 FT8 messages attributed to this token as transmitter, on 80m, across 11 UTC dates in the available aggregate history. Observed between 2026-09-21 and 2026-10-18.
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 34 FT8 messages attributed to JA0CRI as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (100%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -18 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 34 messages
- Active dates
- 11 UTC dates
- Estimated median S/N
- -18 dB
- Estimated 10th-90th percentile
- -24 to -8 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 4.
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 JA0CRI 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 JA0CRI
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
- PM96 · 14 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,603 km (approx.)
- Last such locator decoded
- 2026-10-18 20:12 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 | JA0CRI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-18 20:32 | 160m | - / - | SQ3RX | -4 / - | 5 | Partial capture |
| 10-18 20:19 | 80m | -6 / -14 | YU7BW | +20 / -2 | 3 | ✓ Full exchange observed |
| 10-18 20:15 | 80m | - / -10 | YL3KZ | -1 / - | 5 | ✓ Closing fragment |
| 10-18 20:12 | 80m | -10 / - | LZ1ZF | - / -18 | 3 | ✓ Closing fragment |
| 10-18 20:12 | 80m | - / - | DL8UNO | -6 / - | 2 | Partial capture |
| 10-18 20:12 | 80m | - / - | PA3KUS | -16 / - | 3 | Partial capture |
| 10-18 20:10 | 80m | -10 / -8 | OK2AB | +4 / -18 | 5 | ✓ Full exchange observed |
| 10-17 20:25 | 80m | - / - | UF5F | 0 / - | 2 | Partial capture |
| 10-17 20:23 | 80m | - / -15 | YO9BPX | +13 / - | 3 | ✓ Closing fragment |
| 10-17 20:20 | 80m | - / -21 | RZ4LC | -15 / - | 2 | ✓ Closing fragment |
| 10-16 20:53 | 80m | -20 / -17 | IZ2AMW | +9 / -18 | 4 | ✓ Full exchange observed |
| 10-16 20:43 | 80m | - / -14 | OH5KNL | +16 / - | 3 | ✓ Closing fragment |
| 10-15 20:48 | 80m | - / - | IZ5IMD | -4 / - | 2 | Partial capture |
| 10-15 20:46 | 80m | -21 / -17 | ON4IQ | +10 / - | 5 | ✓ Closing observed |
| 10-15 20:46 | 80m | - / - | RZ3DW | +15 / - | 2 | Partial capture |
| 10-15 20:45 | 80m | - / -10 | OH6XX | +1 / - | 2 | ✓ Closing fragment |
| 10-14 20:58 | 80m | -15 / -21 | SP2GJI | -1 / -17 | 8 | ✓ Full exchange observed |
| 10-14 20:57 | 80m | - / - | DK1MCS | 0 / - | 4 | Partial capture |
| 10-14 20:57 | 80m | - / -15 | Z33PB | -12 / - | 4 | Partial capture |
| 10-14 20:55 | 80m | -11 / -7 | LZ1GC | +4 / -17 | 3 | ✓ Full exchange observed |
| 10-14 20:54 | 80m | -14 / -14 | IZ6BRN | +8 / -21 | 3 | ✓ Full exchange observed |
| 10-14 20:53 | 80m | -14 / - | IK5SRB | +7 / - | 7 | ✓ Closing observed |
| 10-14 20:51 | 80m | - / -7 | 9A2AJ | +3 / - | 2 | ✓ Closing fragment |
| 10-13 20:25 | 80m | - / -12 | ES2AJ | +19 / - | 2 | ✓ Closing fragment |
| 10-13 20:24 | 80m | -19 / -19 | IK5CHL | +10 / - | 7 | ✓ Closing observed |
| 10-10 19:56 | 80m | - / -15 | OT7K | +26 / - | 2 | ✓ Closing fragment |
| 10-02 20:27 | 80m | - / - | UR5SG | +11 / - | 2 | Partial capture |
| 10-02 20:11 | 80m | - / - | YO2MAX | +13 / - | 2 | Partial capture |
| 09-30 20:17 | 160m | - / -14 | DJ7M | +21 / - | 2 | Partial capture |
| 09-30 20:12 | 160m | - / -15 | OH0Z | 0 / - | 4 | Partial capture |
| 09-29 20:59 | 80m | -21 / -9 | RY7F | -3 / -15 | 5 | ✓ Full exchange observed |
| 09-29 14:54 | 80m | - / - | RA3FD | -16 / - | 2 | Partial capture |
| 09-29 14:29 | 80m | - / +5 | OH2BV | -11 / - | 6 | ✓ Closing fragment |
| 09-28 20:41 | 80m | - / - | IZ0BVU | +4 / - | 4 | Partial capture |
| 09-28 20:41 | 80m | - / - | YL3KZ | +7 / - | 4 | Partial capture |
| 09-28 20:39 | 80m | -10 / - | SP3IBS | - / - | 2 | Partial capture |
| 09-28 20:20 | 80m | - / -17 | R6NA | +5 / - | 2 | ✓ Closing fragment |
| 09-28 20:10 | 80m | - / - | SQ2HEB | -1 / - | 4 | Partial capture |
| 09-28 20:08 | 80m | - / -19 | 7Z1DH | -22 / - | 2 | ✓ Closing fragment |
| 09-28 20:07 | 80m | - / -10 | RA4FHO | +2 / - | 2 | ✓ Closing fragment |
| 09-27 21:21 | 80m | - / - | IT9VCE | -9 / - | 3 | Partial capture |
| 09-27 21:19 | 80m | -22 / -17 | IU8HEP | -7 / -17 | 4 | ✓ Full exchange observed |
| 09-27 20:44 | 80m | - / -16 | SP3QDM | +6 / - | 9 | Partial capture |
| 09-27 20:40 | 80m | - / -14 | OH4TQ | +10 / - | 2 | ✓ Closing fragment |
| 09-27 20:32 | 80m | - / -9 | YL3OI | +2 / - | 2 | ✓ Closing fragment |
| 09-27 20:18 | 80m | -18 / -23 | LY1DY | +7 / - | 4 | ✓ Closing observed |
| 09-27 20:16 | 80m | -18 / -19 | OH2BGD | +10 / - | 3 | ✓ Closing observed |
| 09-26 20:46 | 80m | - / -16 | RW1CW | +4 / - | 3 | Partial capture |
| 09-26 20:35 | 80m | - / - | DL9AJ | +11 / - | 7 | Partial capture |
| 09-26 20:33 | 80m | - / - | RA6YDX | -18 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 201230 -10 2487 JA0CRI OH0Z -15 (x4) 201700 +19 547 JA0CRI DJ7M -14 (x2) 203230 -8 1042 JA0CRI SQ3RX JO81 (x5) 192815 -11 1546 JA0CRI RK6OQ KN87 194845 -13 1984 JA0CRI RL3F KO95
UTC dB Audio Message 201300 -17 467 JA0CRI PA3KUS JO21 201300 -8 1348 JA0CRI DL8UNO JO71 201315 -11 1750 LZ1ZF JA0CRI R-18 201330 -17 467 JA0CRI PA3KUS JO21 201345 -11 1749 LZ1ZF JA0CRI 73 201400 -17 1211 JA0CRI SQ5NO JO92 201430 -20 1748 JA0CRI YO8ROM KN37 201530 -3 1749 JA0CRI YL3KZ -10 (x5) 201900 +21 2553 JA0CRI YU7BW -14 201915 -6 1749 YU7BW JA0CRI R-02 201930 +18 2553 JA0CRI YU7BW RR73
UTC dB Audio Message 092730 +0 1256 JA0CRI LX1NO RRR 093145 -9 1566 JA0CRI IK3TCK RR73 093630 -10 567 JA0CRI SV2CLJ -20 (x2)
UTC dB Audio Message 205300 -18 2097 JA0CRI IK0QDM JN61 (x7) 205630 -10 1872 JA0CRI UA4FKT LO23 (x3) 222000 -14 528 JA0CRI TN8GD RR73
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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