K4GSR — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving K4GSR, decoded by SO8OO in southeastern Poland. 88 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-06-14 and 2026-06-30.
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 88 FT8 messages attributed to K4GSR as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (100%) fell within the six-hour window 00:00-06:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 88 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -17 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 28.
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 K4GSR in decoded directed-looking exchanges:
Most frequent locator attributed to K4GSR
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
- EM83 · 25 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,164 km (approx.)
- Last such locator decoded
- 2026-06-20 03:18 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 | K4GSR S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 16:22 | 20m | - / -10 | G4UJS | +3 / - | 3 | ✓ Closing fragment |
| 08-25 12:16 | 20m | - / - | OH2XO | -6 / - | 2 | Partial capture |
| 06-30 05:19 | 20m | - / -5 | SV8/UR4LBR | -13 / - | 2 | ✓ Closing fragment |
| 06-30 05:10 | 20m | - / 0 | G3TKT | -8 / - | 3 | ✓ Closing fragment |
| 06-30 05:08 | 20m | - / +1 | F5CKQ | -14 / - | 2 | Partial capture |
| 06-30 05:07 | 20m | - / -12 | 5B4ASY | -8 / - | 5 | ✓ Closing fragment |
| 06-30 05:06 | 20m | -21 / - | F5RAV | -5 / -8 | 6 | ✓ Full exchange observed |
| 06-30 04:36 | 20m | -12 / - | R1AV | - / -16 | 2 | Partial capture |
| 06-30 04:32 | 20m | -16 / 0 | M6JAY | -14 / 0 | 4 | ✓ Full exchange observed |
| 06-30 04:22 | 20m | - / -13 | OD5KU | +2 / - | 4 | ✓ Closing fragment |
| 06-23 03:29 | 40m | - / -25 | DG4SCG | -18 / - | 2 | Partial capture |
| 06-23 03:27 | 40m | - / -15 | MI0OBC | -22 / - | 2 | ✓ Closing fragment |
| 06-23 03:24 | 40m | - / - | DG4SCG | -19 / - | 3 | Partial capture |
| 06-23 03:24 | 40m | - / -10 | F1PBZ | -8 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 050830 -6 2134 K4GSR 5B4ASY -11 (x3) 051030 -7 2135 K4GSR G3TKT IO92 (x3) 051900 -11 2264 K4GSR SV8/UR4LBR -05 (x2) 052030 -15 1607 K4GSR UR5LMB KN89 062800 -24 1898 K4GSR <...> +00 121645 -5 2831 K4GSR OH2XO KP20 (x2) 162230 +2 2472 K4GSR G4UJS -10 (x3)
UTC dB Audio Message 020545 -24 1780 K4GSR F5RRS JN36
UTC dB Audio Message 031745 +5 2893 K4GSR IQ4JO JN63 032415 -7 2591 K4GSR F1PBZ -10 032445 -18 1626 K4GSR MI0OBC -16 032445 -9 2591 K4GSR F1PBZ -10 032445 -18 1297 K4GSR DG4SCG JN48 (x3) 032715 -24 1625 K4GSR MI0OBC -15 (x2) 032915 -18 1829 K4GSR DG4SCG R-25 (x2)
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