JH3VWN — 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 JH3VWN, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, across 4 UTC dates in the available aggregate history. Observed between 2026-09-03 and 2026-10-14.
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 11 FT8 messages attributed to JH3VWN as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (45%), followed by 40 m (45%) and 160 m (9%). In this small sample, the estimated median decoder S/N was -12 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-14 21:09 UTC
Observed FT8 message patterns
- Attributed sample
- 11 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -12 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 1.
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 JH3VWN in decoded directed-looking exchanges:
Most frequent locator attributed to JH3VWN
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
- PM74 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,565 km (approx.)
- Last such locator decoded
- 2026-10-14 21:00 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 | JH3VWN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-01 19:03 | 40m | - / -13 | Z34K | -12 / - | 4 | ✓ Closing fragment |
| 10-29 20:03 | 80m | - / +3 | TF4M | -14 / - | 2 | Partial capture |
| 10-14 21:09 | 80m | -12 / -17 | OT7K | +15 / -15 | 4 | ✓ Full exchange observed |
| 10-14 21:06 | 80m | -8 / - | SV1EAG | - / -18 | 2 | ✓ Closing fragment |
| 10-14 21:02 | 80m | - / -10 | 9A2AJ | +2 / - | 2 | ✓ Closing fragment |
| 09-15 18:52 | 40m | - / - | SV1BLD | +14 / - | 4 | Partial capture |
| 09-15 18:51 | 40m | - / - | DJ0MAB | +7 / - | 3 | Partial capture |
| 09-15 18:39 | 40m | - / -19 | ON6AA | +5 / - | 3 | ✓ Closing fragment |
| 09-15 18:30 | 40m | - / -1 | M1EAG | -2 / - | 4 | Partial capture |
| 09-03 20:20 | 40m | - / - | EB3JT | -7 / - | 3 | Partial capture |
| 09-03 20:19 | 40m | - / -15 | LY3CY | +2 / - | 2 | ✓ Closing fragment |
| 09-03 20:19 | 40m | -12 / -10 | ON4IQ | +16 / -7 | 6 | ✓ Full exchange observed |
| 08-17 16:28 | 20m | - / - | BG0DAP | -12 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183900 +9 1268 JH3VWN ON6AA JO11 (x3) 184945 -15 2980 RI1FJZ JH3VWN R-20 185130 +12 2979 JH3VWN DJ0MAB JN49 185200 +15 2695 JH3VWN SV1BLD KM17 185200 +10 2979 JH3VWN DJ0MAB JN49 185230 +13 2694 JH3VWN SV1BLD KM17 185230 +0 2979 JH3VWN DJ0MAB JN49 185300 +11 2695 JH3VWN SV1BLD KM17 (x2) 190345 -12 1626 JH3VWN Z34K KN01 (x4)
UTC dB Audio Message 210045 -9 2944 IZ8FWN JH3VWN PM74 210200 +4 2656 JH3VWN 9A2AJ -10 (x2) 210645 -6 2945 SV1EAG JH3VWN R-18 (x2) 210900 +17 630 JH3VWN OT7K -17 210915 -12 2945 OT7K JH3VWN R-15 210930 +13 630 JH3VWN OT7K RR73 210945 -13 2944 OT7K JH3VWN 73 200315 -15 2503 JH3VWN TF4M +03 (x2)
UTC dB Audio Message 174145 -12 2381 RI1FJZ JH3VWN PM74
UTC dB Audio Message 162830 -9 326 JH3VWN BG0DAP NN33 (x4)
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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