K4TFT — reception at SO8OO

Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.

FT8 activity

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM70

Receiver-side FT8 activity involving K4TFT, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-27.

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 11 FT8 messages attributed to K4TFT 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 (100%). In this small sample, the estimated median decoder S/N was -13 dB; no usual signal pattern is inferred.

Overview

11
Messages attributed
3
UTC dates decoded
6
Active 15-min windows
-13 dB
Estimated median S/N

Bands

First attributed message: 2026-06-08
Last attributed message: 2026-08-27 23:16 UTC

Observed FT8 message patterns

Attributed sample
11 messages
Active dates
3 UTC dates
Estimated median S/N
-13 dB
S/N percentile sample
Too small
Recurring-pattern threshold
Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 1.

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 K4TFT in decoded directed-looking exchanges:

Most frequent locator attributed to K4TFT

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
EM70 · 4 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,541 km (approx.)
Last such locator decoded
2026-08-27 23:16 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 UTCBandK4TFT S/NCounterpartCounterpart S/NMsgsCapture
10-25 00:27 40m - / -16 CT2HEX -9 / - 4 ✓ Closing fragment
10-23 05:17 60m - / - SV8JE +4 / - 3 Partial capture
10-23 02:30 80m - / - UX5UO +19 / - 4 Partial capture
10-10 04:10 80m - / -10 VP2MAA -6 / - 2 ✓ Closing fragment
09-26 05:49 80m - / -14 ON8DM -8 / - 2 ✓ Closing fragment
09-26 05:31 80m - / - ON7HM -18 / - 2 Partial capture
09-26 05:27 80m - / -19 F4FSY -13 / - 2 Partial capture
09-26 05:26 80m - / -19 ON7GB -2 / - 4 ✓ Closing fragment
09-26 02:47 40m - / -24 IW4DV +6 / - 2 ✓ Closing fragment
09-26 01:50 40m - / -18 EB3JT -12 / - 4 Partial capture
09-25 01:57 80m - / -10 VE3LWY -14 / - 2 ✓ Closing fragment
08-28 00:00 20m - / -12 HB9TIH -6 / - 6 ✓ Closing fragment
08-27 23:14 20m -13 / - KE2CJL - / 0 3 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

60m
UTC    dB Audio  Message
051715  +2  287  K4TFT SV8JE KM08 (x3)
010900  -1  390  K4TFT CU2DX -17
40m
UTC    dB Audio  Message
024330 -15 2473  K4TFT R2EC KO82
015045 -11 1562  K4TFT EB3JT JN01 (x4)
024715  +6 2751  K4TFT IW4DV -24 (x2)
002715  -6  942  K4TFT CT2HEX IM58 (x4)
80m
UTC    dB Audio  Message
052700  -1 2063  K4TFT ON7GB R-19 (x2)
052730 -15 1778  K4TFT F4FSY -19 (x2)
053145 -16 2021  K4TFT ON7HM JO10 (x2)
054430  -8 2100  K4TFT ON8DM -15 (x3)
041045  -5 1036  K4TFT VP2MAA -10 (x2)
023000 +17  745  K4TFT UX5UO KO50 (x4)
20m
UTC    dB Audio  Message
210515 -16 1373  K4TFT HB10GBT -02
231430 -11  871  KE2CJL K4TFT EM70 (x3)
231630 -11  841  IU8QGR K4TFT EM70
000045 -16 1905  K4TFT HB9TIH JN36 (x6)

CW

No CW receptions recorded for this callsign in the last 30 days.

Explore CW reception at SO8OO

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee