YO8SGV — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving YO8SGV, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-19 and 2026-07-20.
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 23 FT8 messages attributed to YO8SGV as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (91%), followed by 20 m (9%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-07-20 05:00 UTC
Observed FT8 message patterns
- Attributed sample
- 23 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -5 dB
- Estimated 10th-90th percentile
- -9 to -2 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 19.
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 YO8SGV 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 YO8SGV
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
- KN37 · 16 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 468 km (approx.)
- Last such locator decoded
- 2026-07-20 05:00 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 | YO8SGV S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-21 11:47 | 20m | - / -7 | HG0NPJ | -1 / - | 3 | ✓ Closing fragment |
| 08-21 11:46 | 20m | - / -5 | HA1BF | +8 / - | 8 | Partial capture |
| 08-19 11:20 | 20m | - / -3 | CT7AUT | -16 / - | 2 | Partial capture |
| 08-14 14:13 | 20m | - / - | GJ0KYZ | -18 / - | 3 | Partial capture |
| 07-24 08:29 | 20m | - / - | IK4LZH | +8 / - | 3 | Partial capture |
| 07-24 08:29 | 20m | - / -6 | R5AV | -14 / - | 3 | ✓ Closing fragment |
| 07-24 08:24 | 20m | - / -1 | SP3DOF | -3 / - | 21 | Partial capture |
| 07-20 11:38 | 20m | - / -6 | PD1ADA | -22 / - | 2 | Partial capture |
| 07-20 04:59 | 40m | -6 / - | VE2OPR | - / - | 2 | Partial capture |
| 07-20 04:58 | 40m | -7 / -17 | DF7JS | -2 / -7 | 4 | ✓ Full exchange observed |
| 07-20 04:52 | 40m | -3 / - | VA2WM | - / - | 3 | Partial capture |
| 07-20 04:50 | 40m | -3 / - | OY1R | - / -21 | 3 | Partial capture |
| 07-20 04:46 | 40m | -4 / - | <...> | - / -12 | 2 | Partial capture |
| 07-20 04:41 | 40m | -9 / - | WA2HIP | - / - | 3 | Partial capture |
| 07-19 19:16 | 40m | -1 / - | UN8PC | - / -12 | 3 | ✓ Closing fragment |
| 07-19 18:49 | 40m | -6 / -10 | IQ4JO | -5 / -2 | 3 | Partial capture |
| 07-19 06:38 | 20m | - / - | OK1DBE | -11 / - | 4 | Partial capture |
| 07-18 07:07 | 40m | - / -17 | SP9OJ | -8 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 141445 -17 1423 YO8SGV GJ0KYZ IN89 112030 -20 1277 YO8SGV CT7AUT -03 (x2) 114600 +10 1202 YO8SGV HA1BF -05 (x2) 114700 -8 2699 YO8SGV HG0NPJ -07 114700 +6 1202 YO8SGV HA1BF -05 114730 +1 2699 YO8SGV HG0NPJ -09 114730 +7 1202 YO8SGV HA1BF -05 114800 +5 2699 YO8SGV HG0NPJ RR73 114800 +6 1202 YO8SGV HA1BF -05 (x4) 071330 -8 454 YO8SGV M0IOW -14
UTC dB Audio Message 044645 -7 2737 <...> YO8SGV KN37 (x2) 045030 -3 2738 OY1R YO8SGV KN37 (x3) 045200 -3 2738 VA2WM YO8SGV KN37 (x3) 045430 -5 2738 TF3VS YO8SGV KN37 045815 -3 2805 YO8SGV DF7JS -17 045830 -6 2738 DF7JS YO8SGV R-07 045845 -2 2805 YO8SGV DF7JS RR73 045900 -8 2739 DF7JS YO8SGV 73 045930 -5 2738 VE2OPR YO8SGV KN37 (x2)
UTC dB Audio Message 100815 -11 1142 YO8SGV DN9MNE -12
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee