JY5JA — 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 JY5JA, decoded by SO8OO in southeastern Poland. 124 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-06 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 124 FT8 messages attributed to JY5JA as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (95%), followed by 40 m (5%). Several six-hour UTC windows tied for the largest share (56%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Bands
Last attributed message: 2026-10-18 00:17 UTC
Observed FT8 message patterns
- Attributed sample
- 124 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -18 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 21, moderate (-15 to -9 dB) 38, strong (≥ -8 dB) 65.
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 JY5JA in decoded directed-looking exchanges:
Most frequent locator attributed to JY5JA
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
- KM71 · 53 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,325 km (approx.)
- Last such locator decoded
- 2026-10-18 00:13 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 | JY5JA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-24 21:02 | 40m | - / - | DA125RH | -11 / - | 2 | ✓ Closing fragment |
| 10-24 21:02 | 40m | - / - | DB2GM | -11 / - | 3 | Partial capture |
| 10-24 21:00 | 40m | - / - | F5PBG | -13 / - | 2 | Partial capture |
| 10-24 20:58 | 40m | - / - | DL3MIB | 0 / - | 4 | Partial capture |
| 10-24 20:58 | 40m | - / - | F1HFP | -20 / - | 2 | Partial capture |
| 10-24 20:57 | 40m | - / - | F5NNN | -14 / - | 6 | Partial capture |
| 10-24 20:56 | 40m | - / -17 | IW9HPG | -2 / - | 4 | ✓ Closing fragment |
| 10-24 20:55 | 40m | - / - | DB2GM | -9 / - | 4 | Partial capture |
| 10-24 20:55 | 40m | - / - | DL1OBF | -13 / - | 3 | Partial capture |
| 10-24 20:54 | 40m | - / -18 | EA3ICF | -5 / - | 15 | Partial capture |
| 10-24 20:54 | 40m | - / - | IS0UVE | +3 / - | 3 | Partial capture |
| 10-24 20:52 | 40m | - / - | F8ADF | -3 / - | 4 | Partial capture |
| 10-24 20:52 | 40m | - / -10 | F1PBZ | -8 / - | 3 | Partial capture |
| 10-24 20:50 | 40m | - / - | DB2GM | -6 / - | 2 | Partial capture |
| 10-24 20:50 | 40m | - / -12 | F4HPX | -11 / - | 2 | Partial capture |
| 10-24 20:50 | 40m | - / - | RY7F | +1 / - | 4 | Partial capture |
| 10-24 20:46 | 40m | - / -13 | DK7ZT | -7 / - | 2 | Partial capture |
| 10-24 20:46 | 40m | - / - | DL6NAC | +1 / - | 3 | Partial capture |
| 10-18 00:17 | 40m | - / - | R7FQ | -18 / - | 4 | Partial capture |
| 10-18 00:16 | 40m | -19 / -7 | RD3FY | -8 / -3 | 6 | ✓ Full exchange observed |
| 10-18 00:15 | 40m | - / - | UX1VT | -14 / - | 4 | Partial capture |
| 10-18 00:13 | 40m | -20 / -14 | RZ4FWA | -18 / -15 | 5 | Partial capture |
| 08-19 22:04 | 20m | - / -2 | VE3ARF | -12 / - | 2 | ✓ Closing fragment |
| 08-11 17:58 | 10m | - / -3 | IU3WNU | -7 / - | 4 | Partial capture |
| 08-11 17:56 | 10m | - / -22 | IZ7UIU | -12 / - | 3 | Partial capture |
| 08-11 17:54 | 10m | - / - | UB3BCT | -24 / - | 2 | Partial capture |
| 08-11 17:54 | 10m | - / - | IV3UWA/0 | -15 / - | 3 | Partial capture |
| 08-11 17:53 | 10m | - / - | RY7G | -13 / - | 4 | Partial capture |
| 08-11 17:52 | 10m | - / -8 | HB9Q | +4 / - | 75 | Partial capture |
| 08-11 17:50 | 10m | - / - | 9A2KS | -21 / - | 4 | Partial capture |
| 08-11 17:50 | 10m | - / -14 | R3OR | -3 / - | 11 | Partial capture |
| 08-11 17:50 | 10m | - / - | RW6HPS | -14 / - | 4 | Partial capture |
| 08-11 17:49 | 10m | - / -3 | UR5QW | -11 / - | 9 | Partial capture |
| 08-11 17:48 | 10m | - / - | RY7G | -9 / - | 5 | Partial capture |
| 08-11 17:46 | 10m | - / - | CE2SV | -15 / - | 6 | Partial capture |
| 08-11 17:43 | 10m | - / -2 | IK2XYI | -22 / - | 2 | ✓ Closing fragment |
| 08-11 17:43 | 10m | - / - | RY7G | -2 / - | 3 | Partial capture |
| 08-11 17:43 | 10m | - / - | DN9OPA | -12 / - | 4 | Partial capture |
| 08-11 17:43 | 10m | - / -5 | F1PBZ | +6 / - | 2 | Partial capture |
| 08-11 17:38 | 10m | - / -6 | EA8UP | -10 / - | 2 | ✓ Closing fragment |
| 08-08 17:55 | 20m | - / - | DL1API | -4 / - | 4 | Partial capture |
| 08-08 17:52 | 20m | -17 / +1 | RC5F | -5 / -8 | 6 | ✓ Full exchange observed |
| 08-08 17:51 | 20m | -16 / - | OZ6YN | - / -16 | 2 | Partial capture |
| 08-08 17:47 | 20m | - / - | S58S | -8 / - | 4 | Partial capture |
| 08-08 17:45 | 20m | -10 / - | F1PPH | - / -18 | 3 | Partial capture |
| 08-08 17:44 | 20m | - / - | DF6NL | -12 / - | 9 | Partial capture |
| 08-08 17:43 | 20m | - / -12 | EA7GHD | -15 / - | 7 | Partial capture |
| 08-08 17:42 | 20m | - / - | M8MLQ | -4 / - | 12 | Partial capture |
| 08-08 17:42 | 20m | -12 / - | SM6LRY | - / - | 2 | ✓ Closing fragment |
| 08-08 17:41 | 20m | - / - | G1USB | -11 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 210030 -11 1831 JY5JA F5PBG IN78 210030 -5 1312 JY5JA EA3ICF JN11 210100 -15 1831 JY5JA F5PBG IN78 210100 -1 1312 JY5JA EA3ICF JN11 (x3) 210200 -12 1781 JY5JA DB2GM JN47 210200 -12 2283 <JY5JA> DA125RH 73 210230 -8 2746 JY5JA DK6AH JN48 210230 -9 1781 JY5JA DB2GM JN47 210230 -10 2283 JY5JA DA125RH 210300 -23 1832 JY5JA F1HFP JN28 210300 -5 2308 JY5JA DL4DTL -17 210300 -12 1781 JY5JA DB2GM JN47 210630 -18 1832 JY5JA F1HFP JN28
UTC dB Audio Message 175115 -18 1975 JY5JA PH7R JO22 175130 -16 1300 OZ6YN JY5JA -16 (x2) 175215 -2 1422 JY5JA RC5F KO85 175230 -18 1420 RC5F JY5JA -08 175245 -2 1422 JY5JA RC5F R+01 175300 -16 1420 RC5F JY5JA RR73 175315 -11 1422 JY5JA RC5F 73 175330 -18 1420 RC5F JY5JA 73 175545 -6 737 JY5JA DL1API JO51 (x4) 220430 -11 2545 JY5JA VE3ARF -02 (x2)
UTC dB Audio Message 182230 -3 2371 JY5JA HB9Q -08 (x15)
CW
No CW receptions recorded for this callsign in the last 30 days.
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