WP4TMZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving WP4TMZ, decoded by SO8OO in southeastern Poland. 6 FT8 messages attributed to this token as transmitter, on 40m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-18 and 2026-09-02.
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 6 FT8 messages attributed to WP4TMZ as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 6 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -16 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3, moderate (-15 to -9 dB) 3, strong (≥ -8 dB) 0.
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 WP4TMZ in decoded directed-looking exchanges:
Most frequent locator attributed to WP4TMZ
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
- FK68 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,360 km (approx.)
- Last such locator decoded
- 2026-09-02 01:51 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 | WP4TMZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-10 05:06 | 40m | - / -9 | ES6DO | -4 / - | 2 | ✓ Closing fragment |
| 09-10 05:03 | 40m | - / -16 | YO4NT | 0 / - | 2 | ✓ Closing fragment |
| 09-02 02:17 | 40m | - / - | F5PBG | +10 / - | 4 | Partial capture |
| 09-02 02:13 | 40m | - / - | R3RB | -11 / - | 3 | Partial capture |
| 09-02 02:08 | 40m | - / -17 | MI0NWA | -2 / - | 3 | ✓ Closing fragment |
| 09-02 02:08 | 40m | - / - | R2ZCA | -1 / - | 3 | Partial capture |
| 09-02 02:02 | 40m | - / - | F5PBG | +7 / - | 4 | Partial capture |
| 09-02 02:00 | 40m | - / -4 | DL3MIB | -4 / - | 4 | ✓ Closing fragment |
| 09-02 01:53 | 40m | - / +1 | DK7ZT | -23 / - | 2 | ✓ Closing fragment |
| 09-02 01:51 | 40m | -16 / - | KR4EOD | - / 0 | 3 | ✓ Closing fragment |
| 09-02 01:49 | 40m | -15 / -18 | UY0HY | +2 / -13 | 8 | ✓ Full exchange observed |
| 08-28 03:01 | 40m | - / -21 | IZ8PPI | -15 / - | 3 | Partial capture |
| 07-28 02:04 | 20m | - / -14 | YO4NF | -8 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 020900 -1 2216 WP4TMZ R2ZCA KO81 020900 +3 491 WP4TMZ MI0NWA -17 (x2) 021330 -13 1565 WP4TMZ R3RB LO03 (x3) 021730 -3 1722 WP4TMZ UA6LIK LN08 021730 +10 2844 WP4TMZ F5PBG IN78 (x4) 050300 +1 2165 WP4TMZ YO4NT -16 (x2) 050600 -2 458 WP4TMZ ES6DO -09 (x2)
UTC dB Audio Message 020400 -10 2629 WP4TMZ YO4NF -14 (x2) 184415 -7 463 WP4TMZ IK4LZH JN54
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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