GW4UZX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving GW4UZX, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-13.
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 17 FT8 messages attributed to GW4UZX 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 (35%), followed by 10 m (35%) and 40 m (29%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-13 20:08 UTC
Observed FT8 message patterns
- Attributed sample
- 17 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -17 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 7, 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 GW4UZX in decoded directed-looking exchanges:
Most frequent locator attributed to GW4UZX
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
- IO71 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,883 km (approx.)
- Last such locator decoded
- 2026-09-13 20:06 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 | GW4UZX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-13 20:07 | 40m | - / - | DL6RS | +8 / - | 3 | Partial capture |
| 09-13 20:06 | 40m | -11 / -5 | DG7DBM | -12 / -10 | 4 | ✓ Full exchange observed |
| 09-13 20:06 | 40m | -10 / - | RA6OY | +2 / -14 | 6 | Partial capture |
| 07-26 19:30 | 40m | - / -14 | DL4MCV | -9 / - | 3 | ✓ Closing fragment |
| 07-26 07:17 | 20m | -19 / - | OE3EHS | - / -8 | 4 | Partial capture |
| 07-13 19:36 | 40m | - / -16 | R3DQE | -21 / - | 3 | ✓ Closing fragment |
| 07-13 19:35 | 40m | - / -4 | F6FLU | -5 / - | 3 | ✓ Closing fragment |
| 07-06 17:58 | 10m | - / -16 | DH5BM | -15 / - | 10 | Partial capture |
| 07-05 10:28 | 20m | - / -11 | PD0IFI | -2 / - | 2 | ✓ Closing fragment |
| 07-04 19:51 | 10m | - / - | F4EOC | -9 / - | 3 | ✓ Closing fragment |
| 06-26 18:03 | 10m | - / - | ON7EH | -14 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 200630 -11 772 CQ GW4UZX IO71 200645 +4 896 GW4UZX RA6OY KN88 200645 -9 284 GW4UZX DG7DBM JO31 200700 -9 772 DG7DBM GW4UZX -10 200715 +5 896 GW4UZX RA6OY KN88 200715 +9 2990 GW4UZX DL6RS JN48 200715 -15 285 GW4UZX DG7DBM R-05 200730 -13 772 DG7DBM GW4UZX RR73 200745 -2 895 GW4UZX RA6OY KN88 200745 -12 2339 GW4UZX R7GA LN14 200745 +7 2990 GW4UZX DL6RS JN48 200815 +3 895 GW4UZX RA6OY KN88 200815 +9 2990 GW4UZX DL6RS JN48 200830 -10 772 RA6OY GW4UZX -14 200845 -1 895 GW4UZX RA6OY KN88
UTC dB Audio Message 102800 +1 382 GW4UZX PD0IFI R-11 (x2) 071045 -21 2096 F4EGM GW4UZX RR73 071715 -19 1171 OE3EHS GW4UZX -08 (x4) 055215 -18 1290 CQ DX GW4UZX IO71
UTC dB Audio Message 180415 -17 1867 GW4UZX ON7EH 73 180415 -15 630 GW4UZX DK8HC JO42 195115 -7 1808 GW4UZX F4EOC JN39 (x3) 175830 -18 1839 GW4UZX DH5BM JO41 (x10)
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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