F4CSG — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving F4CSG, decoded by SO8OO in southeastern Poland. 27 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 9 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-10.
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 27 FT8 messages attributed to F4CSG as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (85%), followed by 40 m (15%). Most decodes (74%) fell within the six-hour window 05:00-11:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -13 dB.
Overview
Bands
Last attributed message: 2026-09-10 06:48 UTC
Observed FT8 message patterns
- Attributed sample
- 27 messages
- Active dates
- 9 UTC dates
- Estimated median S/N
- -13 dB
- Estimated 10th-90th percentile
- -21 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 10, strong (≥ -8 dB) 4.
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 F4CSG 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 F4CSG
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
- IN96 · 25 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,724 km (approx.)
- Last such locator decoded
- 2026-09-10 06:48 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 | F4CSG S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-10 06:37 | 40m | - / -20 | Z68PX | -2 / - | 3 | Partial capture |
| 08-27 14:49 | 20m | -11 / - | R3DLZ | - / - | 2 | Partial capture |
| 08-24 06:55 | 20m | -14 / - | TJ1GD | - / - | 3 | Partial capture |
| 08-24 06:41 | 20m | -11 / - | TJ1GD | - / - | 9 | Partial capture |
| 07-23 06:14 | 20m | - / -3 | TK5K | -8 / - | 3 | ✓ Closing fragment |
| 07-17 07:12 | 20m | - / -16 | YO6LM | -11 / - | 3 | Partial capture |
| 07-17 07:09 | 20m | - / -10 | OD5KU | -6 / - | 5 | ✓ Closing fragment |
| 06-29 05:43 | 20m | -17 / - | JY5IB | - / - | 2 | Partial capture |
| 06-28 06:01 | 20m | - / -1 | Z62NS | -10 / - | 2 | ✓ Closing fragment |
| 06-24 15:07 | 20m | - / -13 | CT3MD | -4 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 210400 -9 2345 F4CSG RR73; IU2VUD <...> -18 211130 -9 2344 F4CSG CN8NS RR73 063515 -10 686 Z68PX F4CSG IN96 063730 +0 625 F4CSG Z68PX -20 (x3) 064845 -12 735 Z68PX F4CSG IN96
UTC dB Audio Message 064115 -20 1266 TJ1GD F4CSG IN96 (x12) 144945 -12 1334 R3DLZ F4CSG IN96 (x2) 163415 -11 581 RI1FJL F4CSG IN96
UTC dB Audio Message 084300 -11 378 F4CSG <...> -10
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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