G5CTX — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving G5CTX, decoded by SO8OO in southeastern Poland. 26 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-25 and 2026-07-26.
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 26 FT8 messages attributed to G5CTX 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 -6 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 26 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -11 to +2 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 17.
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 G5CTX 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 G5CTX
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
- IO83 · 16 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,744 km (approx.)
- Last such locator decoded
- 2026-07-26 18:08 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 | G5CTX S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-26 17:49 | 20m | -8 / - | TN8GD | - / - | 2 | Partial capture |
| 07-26 17:33 | 20m | -2 / -12 | YO8RFK | +3 / 0 | 6 | ✓ Full exchange observed |
| 07-26 17:32 | 20m | +4 / - | EA4IAQ | - / - | 2 | Partial capture |
| 07-25 17:28 | 20m | -10 / -9 | UN7LEW | -17 / -10 | 4 | Partial capture |
| 07-25 17:27 | 20m | -2 / - | EW4IDP | - / -7 | 2 | Partial capture |
| 07-25 17:24 | 20m | -8 / - | DL1EBW | -18 / - | 3 | ✓ Closing observed |
| 07-25 17:23 | 20m | -4 / - | YU7AS | - / - | 2 | Partial capture |
| 07-25 16:59 | 20m | +1 / - | HA8RC | - / - | 2 | ✓ Closing fragment |
| 07-25 16:56 | 20m | - / -11 | RA9LL | -9 / - | 2 | ✓ Closing fragment |
| 07-25 16:16 | 20m | - / - | DG5DR | -13 / - | 2 | ✓ Closing fragment |
| 07-25 16:08 | 20m | -5 / - | F8STC | - / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 172830 -17 2006 G5CTX UN7LEW -09 172845 -9 560 UN7LEW G5CTX R-10 (x2) 173230 +2 558 EA4IAQ G5CTX IO83 (x2) 173330 +4 558 YO8RFK G5CTX IO83 173345 +7 2392 G5CTX YO8RFK -12 173400 -2 558 YO8RFK G5CTX R+00 173415 +2 2392 G5CTX YO8RFK RR73 (x2) 173500 -9 558 YO8RFK G5CTX 73 174830 -2 559 F4LJG G5CTX IO83 174915 -3 559 TN8GD G5CTX IO83 (x2) 180815 -9 375 EA8VD G5CTX IO83
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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