W8JMV — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving W8JMV, decoded by SO8OO in southeastern Poland. 8 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-06-15.
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 8 FT8 messages attributed to W8JMV as the transmitting token by decoded message structure across 2 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 -10 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 8 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -10 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 7, 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 W8JMV in decoded directed-looking exchanges:
Most frequent locator attributed to W8JMV
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
- EM99 · 8 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,546 km (approx.)
- Last such locator decoded
- 2026-06-15 00:16 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 | W8JMV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-29 20:56 | 20m | - / -5 | T77RN | -4 / - | 2 | ✓ Closing fragment |
| 07-13 00:02 | 20m | - / -18 | 7Z1DS | -10 / - | 2 | ✓ Closing fragment |
| 07-08 23:06 | 20m | - / -14 | HZ1BQ | -13 / - | 3 | ✓ Closing fragment |
| 07-04 01:27 | 20m | - / -8 | HZ1BQ | -4 / - | 2 | ✓ Closing fragment |
| 07-04 00:56 | 20m | - / -13 | A61CK | -12 / - | 4 | Partial capture |
| 07-04 00:41 | 20m | - / -7 | 5Z4VJ | -8 / - | 2 | ✓ Closing fragment |
| 06-27 22:03 | 20m | - / -10 | Z62NS | -18 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 005645 -11 870 W8JMV A61CK -13 (x4) 012730 -3 681 W8JMV HZ1BQ -08 (x5) 233030 -12 1190 W8JMV A61DD -15 000245 -11 676 W8JMV 7Z1DS -18 (x2) 232100 -5 318 W8JMV YO4NF RR73 205600 -1 305 W8JMV T77RN -05 (x2)
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