JH7XMO — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JH7XMO, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-06-07.
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 25 FT8 messages attributed to JH7XMO as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -1 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 25 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -7 to +3 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 24.
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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with JH7XMO in decoded directed-looking exchanges:
Most frequent locator attributed to JH7XMO
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
- QM08 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,525 km (approx.)
- Last such locator decoded
- 2026-06-07 20:00 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 | JH7XMO S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-21 15:55 | 160m | - / -23 | SV9CVY | -8 / - | 3 | ✓ Closing fragment |
| 09-21 15:34 | 160m | - / -20 | LY7M | +2 / - | 2 | Partial capture |
| 09-21 15:04 | 80m | - / - | UX1AA | -2 / - | 9 | Partial capture |
| 09-12 16:52 | 40m | - / -17 | UA3PY | -8 / - | 2 | ✓ Closing fragment |
| 09-12 16:49 | 40m | - / -15 | RO3R | -6 / - | 3 | ✓ Closing fragment |
| 09-12 16:43 | 40m | - / -8 | SP3SLA | +8 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 153445 +0 1760 JH7XMO LY7M -20 (x2) 155545 -7 2092 JH7XMO SV9CVY KM25 (x3) 155715 +7 1800 JH7XMO 9A5W JN85
UTC dB Audio Message 150400 +1 2097 JH7XMO UX1AA KO70 (x9)
UTC dB Audio Message 164315 +11 1870 JH7XMO SP3SLA -08 (x2) 164915 -9 2930 JH7XMO RO3R -15 (x3) 165200 -7 2162 JH7XMO UA3PY -17 (x2)
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