JA1PCM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving JA1PCM, decoded by SO8OO in southeastern Poland. 16 FT8 messages attributed to this token as transmitter, on 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-06-19.
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 16 FT8 messages attributed to JA1PCM 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%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 16 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -15 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 3.
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 JA1PCM in decoded directed-looking exchanges:
Most frequent locator attributed to JA1PCM
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
- QM05 · 11 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,798 km (approx.)
- Last such locator decoded
- 2026-06-19 19:36 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 | JA1PCM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 21:12 | 20m | - / -8 | 9K2GR | -14 / - | 2 | ✓ Closing fragment |
| 08-26 21:13 | 20m | - / -25 | G3VCQ | +12 / - | 2 | ✓ Closing fragment |
| 08-25 09:35 | 20m | - / - | SV1MOZ | +3 / - | 4 | Partial capture |
| 07-17 19:57 | 20m | - / - | US5HL | -4 / - | 2 | Partial capture |
| 06-28 21:23 | 20m | - / - | YO7BPC | -10 / - | 4 | Partial capture |
| 06-25 19:25 | 20m | - / -3 | IR7RMAT | -15 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 212300 -12 920 JA1PCM YO7BPC KN24 (x4) 204530 +4 2152 JA1PCM OL6WWA RR73 195745 -2 338 JA1PCM US5HL KN69 (x2) 093530 +0 595 JA1PCM SV1MOZ KM17 (x4) 211300 +9 1844 JA1PCM G3VCQ -25 (x2) 211200 -13 2258 JA1PCM 9K2GR -08 (x2)
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