JH1VPB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JH1VPB, decoded by SO8OO in southeastern Poland. 30 FT8 messages attributed to this token as transmitter, on 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-08-30.
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 30 FT8 messages attributed to JH1VPB as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (90%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (63%); the estimated median was -5 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 30 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -21 to +1 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 19.
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 JH1VPB in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to JH1VPB
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
- PM95 · 24 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,693 km (approx.)
- Last such locator decoded
- 2026-08-30 21:32 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 | JH1VPB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-31 18:36 | 20m | - / - | DJ7JB | +5 / - | 8 | Partial capture |
| 08-31 18:36 | 20m | - / - | MM0JTV | -2 / - | 4 | Partial capture |
| 08-31 18:32 | 20m | - / - | DJ7JB | +8 / - | 4 | Partial capture |
| 08-30 21:31 | 20m | -14 / - | V51WH | - / -3 | 4 | ✓ Closing fragment |
| 08-29 17:50 | 20m | - / - | ON7NQ | +10 / - | 8 | Partial capture |
| 08-29 17:24 | 20m | - / - | ON7NQ | +3 / - | 6 | Partial capture |
| 08-29 17:08 | 20m | - / - | DJ7JB | -4 / - | 2 | Partial capture |
| 08-25 19:13 | 20m | - / -13 | PA2AZ | -2 / - | 4 | Partial capture |
| 08-20 20:19 | 20m | - / -11 | D2IM | -6 / - | 2 | ✓ Closing fragment |
| 08-14 18:15 | 20m | -24 / - | ES2AJ | - / -9 | 2 | Partial capture |
| 08-10 20:30 | 20m | - / - | CT1FIU | -22 / - | 2 | Partial capture |
| 08-10 20:28 | 20m | - / - | SV5BYP | -17 / - | 3 | ✓ Closing fragment |
| 08-07 04:51 | 20m | - / - | V31DL | -11 / - | 2 | Partial capture |
| 08-06 17:37 | 20m | - / -3 | ON7DJ | -7 / - | 4 | ✓ Closing fragment |
| 08-06 17:05 | 20m | - / - | PD1ADA | -20 / - | 4 | Partial capture |
| 08-06 17:02 | 20m | - / - | G8OO | -17 / - | 3 | Partial capture |
| 08-06 17:00 | 20m | - / -14 | ON6AA | -7 / - | 6 | ✓ Closing fragment |
| 08-03 17:36 | 20m | -18 / +7 | CT3MD | -11 / -8 | 4 | ✓ Full exchange observed |
| 08-03 17:36 | 20m | - / - | ON6AA | -5 / - | 5 | Partial capture |
| 07-24 18:26 | 20m | - / - | ON6AA | +10 / - | 2 | Partial capture |
| 07-24 17:58 | 20m | - / - | ON6AA | -8 / - | 2 | Partial capture |
| 07-24 17:57 | 20m | -18 / - | <...> | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 183330 +11 650 JH1VPB DJ7JB JO62 (x2) 183630 -3 1966 JH1VPB MM0JTV IO75 183630 +8 650 JH1VPB DJ7JB JO62 183630 -17 2042 JH1VPB BG7BVI OL66 183700 +0 1966 JH1VPB MM0JTV IO75 183700 +7 650 JH1VPB DJ7JB JO62 183730 -2 1966 JH1VPB MM0JTV IO75 183730 +8 650 JH1VPB DJ7JB JO62 183800 -2 1966 JH1VPB MM0JTV IO75 183800 +2 650 JH1VPB DJ7JB JO62 (x5)
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.
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