K5JSG — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving K5JSG, decoded by SO8OO in southeastern Poland. 56 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-09-15.
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 56 FT8 messages attributed to K5JSG as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (79%), followed by 40 m (21%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (80%); the estimated median was -6 dB.
Overview
Bands
Last attributed message: 2026-09-15 00:30 UTC
Observed FT8 message patterns
- Attributed sample
- 56 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -6 dB
- Estimated 10th-90th percentile
- -11 to -3 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 11, strong (≥ -8 dB) 45.
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 K5JSG in decoded directed-looking exchanges:
Most frequent locator attributed to K5JSG
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
- FN13 · 45 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 6,995 km (approx.)
- Last such locator decoded
- 2026-09-15 00:30 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 | K5JSG S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-15 00:28 | 40m | -8 / - | W6E | - / - | 5 | Partial capture |
| 09-15 00:15 | 40m | -8 / - | W6G | - / -18 | 7 | ✓ Closing fragment |
| 08-25 18:13 | 20m | - / - | I1RJP | +6 / - | 2 | Partial capture |
| 08-25 18:08 | 20m | - / - | I1RJP | -2 / - | 2 | Partial capture |
| 08-25 17:46 | 20m | - / - | I1RJP | +18 / - | 4 | Partial capture |
| 08-23 21:51 | 20m | -8 / - | N1EZ | - / - | 2 | Partial capture |
| 08-23 21:50 | 20m | -7 / - | KD0XD | - / -20 | 2 | Partial capture |
| 08-23 21:45 | 20m | -10 / - | KD0XD | - / -23 | 4 | Partial capture |
| 08-23 21:44 | 20m | -9 / - | KF0NXR | - / -13 | 3 | ✓ Closing fragment |
| 08-23 02:06 | 40m | - / - | I1RJP | +16 / - | 3 | Partial capture |
| 08-23 02:00 | 40m | - / - | I1RJP | +2 / - | 3 | Partial capture |
| 08-23 01:51 | 40m | - / - | I1RJP | +7 / - | 3 | Partial capture |
| 08-23 01:49 | 40m | - / - | YO9IAB | +5 / - | 3 | Partial capture |
| 08-23 01:46 | 40m | - / - | I1RJP | +5 / - | 3 | Partial capture |
| 08-23 01:44 | 40m | - / - | UA3GDJ | -7 / - | 2 | Partial capture |
| 08-23 01:23 | 20m | -5 / - | K7FTQ | - / - | 6 | Partial capture |
| 08-23 01:19 | 20m | -5 / - | K0SSD | - / - | 4 | Partial capture |
| 08-23 01:15 | 20m | -5 / - | K0SSD | - / - | 5 | Partial capture |
| 08-23 01:11 | 20m | -6 / - | N9TDE | - / -6 | 2 | Partial capture |
| 08-23 01:10 | 20m | - / - | N2LEE | -9 / - | 3 | Partial capture |
| 08-23 01:08 | 20m | -8 / - | W0OVX | - / -2 | 2 | ✓ Closing fragment |
| 08-23 01:07 | 20m | - / - | DL3RAJ | -8 / - | 6 | Partial capture |
| 08-23 01:04 | 20m | - / - | DL1UDO | -7 / - | 3 | Partial capture |
| 08-23 01:04 | 20m | - / - | PD0RCQ | +1 / - | 5 | Partial capture |
| 08-23 01:02 | 20m | -5 / - | N9TDE | - / - | 3 | Partial capture |
| 08-15 20:07 | 20m | - / - | F4NGC | 0 / - | 8 | Partial capture |
| 07-25 19:44 | 20m | - / -17 | M8KUG | -15 / - | 6 | Partial capture |
| 07-17 22:51 | 20m | - / -7 | HB9TIH | -15 / - | 3 | ✓ Closing fragment |
| 07-17 22:49 | 20m | - / - | I1RJP | -8 / - | 3 | Partial capture |
| 07-03 01:13 | 20m | - / - | I1RJP | -19 / - | 2 | Partial capture |
| 07-03 01:06 | 20m | - / - | I1RJP | -6 / - | 2 | Partial capture |
| 06-28 20:47 | 20m | - / - | I1RJP | +2 / - | 3 | Partial capture |
| 06-28 19:29 | 10m | - / - | II2MPP | +8 / - | 2 | Partial capture |
| 06-28 19:24 | 40m | - / - | II2MPP | -8 / - | 3 | Partial capture |
| 06-28 19:14 | 20m | - / - | II2MPP | -2 / - | 14 | Partial capture |
| 06-28 18:55 | 20m | - / - | DL1R | +5 / - | 8 | Partial capture |
| 06-28 18:49 | 20m | - / -11 | F4BYA | +3 / - | 10 | Partial capture |
| 06-28 18:37 | 20m | - / -12 | DJ4WT | -12 / - | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 020715 +13 2945 K5JSG I1RJP JN45 (x2) 001530 -5 3015 W6G K5JSG FN13 (x7) 002815 -6 265 W6E K5JSG FN13 (x5) 003330 -3 2652 K5JSG MI7XHT IO64
UTC dB Audio Message 214600 -9 3028 KD0XD K5JSG FN13 (x5) 215130 -6 3028 N1EZ K5JSG FN13 (x2) 174600 +21 269 K5JSG I1RJP JN45 (x8)
UTC dB Audio Message 192900 +6 2758 K5JSG II2MPP JN45 (x2)
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