LA4ISA — 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 LA4ISA, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-07-28.
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 27 FT8 messages attributed to LA4ISA as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (89%), 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
Observed FT8 message patterns
- Attributed sample
- 27 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -13 to -1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 12, strong (≥ -8 dB) 14.
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 LA4ISA in decoded directed-looking exchanges:
Most frequent locator attributed to LA4ISA
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
- JP65 · 15 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,803 km (approx.)
- Last such locator decoded
- 2026-07-28 08:18 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 | LA4ISA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-19 20:30 | 40m | - / - | M0URL | -16 / - | 2 | Partial capture |
| 10-14 18:13 | 40m | - / -5 | DK7ZT | +1 / - | 4 | Partial capture |
| 10-14 18:13 | 40m | - / -17 | YO4NF | +6 / - | 2 | Partial capture |
| 10-13 12:25 | 40m | - / -14 | DK7ZT | -8 / - | 2 | Partial capture |
| 10-13 12:24 | 40m | - / -16 | DK4FH | -10 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 122400 +9 2627 LA4ISA SQ9PBV JN99 122430 -7 982 LA4ISA DK4FH R-16 122500 -7 2489 LA4ISA DK7ZT -14 122500 -12 983 LA4ISA DK4FH 73 122530 -10 2489 LA4ISA DK7ZT -14 181315 +5 2651 LA4ISA YO4NF -17 181315 +0 2489 LA4ISA DK7ZT -05 181345 +6 2652 LA4ISA YO4NF -17 181345 -1 2489 LA4ISA DK7ZT -05 (x3) 203000 -13 1984 LA4ISA M0URL IO91 (x2)
UTC dB Audio Message 203830 +15 1581 LA4ISA DK7ZT -16
UTC dB Audio Message 081130 -24 1868 LA4ISA HB9MZI R-15 081530 -6 2779 LA4ISA F1PBZ -13 081845 -14 2515 CQ LA4ISA JP65
CW
No CW receptions recorded for this callsign in the last 30 days.
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