KS4YT — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EM63

Receiver-side FT8 activity involving KS4YT, decoded by SO8OO in southeastern Poland. 23 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-14.

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 KS4YT as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (74%), followed by 80 m (13%) and 20 m (13%). 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 moderate S/N range (65%); the estimated median was -14 dB.

Overview

23
Messages attributed
5
UTC dates decoded
5
Active 15-min windows
-14 dB
Estimated median S/N

Bands

80m · 3 40m · 17 20m · 3
First attributed message: 2026-06-07
Last attributed message: 2026-09-14 04:29 UTC

Observed FT8 message patterns

Attributed sample
23 messages
Active dates
5 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-16 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 15, 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 KS4YT in decoded directed-looking exchanges:

Most frequent locator attributed to KS4YT

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
EM63 · 14 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,401 km (approx.)
Last such locator decoded
2026-09-13 03:22 UTC

Other locator fields attributed to this token: EM62 (3).

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 UTCBandKS4YT S/NCounterpartCounterpart S/NMsgsCapture
09-19 05:21 80m - / -16 EA6LU -5 / - 2 ✓ Closing fragment
09-14 04:25 80m - / - MW7TTA -20 / - 2 Partial capture
09-14 04:22 80m - / -19 DL1RNW +18 / - 9 ✓ Closing fragment
09-14 04:22 80m - / -9 ON1JP -24 / - 4 Partial capture
09-14 04:21 80m - / -19 S56P +20 / - 4 ✓ Closing fragment
09-14 03:01 80m - / 0 OK2SFP +20 / - 2 Partial capture
09-14 02:57 80m - / - OK2SFP +22 / - 4 Partial capture
09-11 05:26 80m - / - DC8SM -14 / - 4 Partial capture
09-11 05:20 80m - / -21 EA6Y -15 / - 4 ✓ Closing fragment
09-11 05:14 80m - / -7 IZ2AMW -22 / - 3 ✓ Closing fragment
09-11 05:04 80m - / -12 IZ2QPP -7 / - 4 Partial capture
09-11 05:00 80m - / - PA3KUS -20 / - 2 Partial capture
09-11 04:55 80m - / -13 ON7GB -1 / - 3 Partial capture
09-11 03:58 80m - / -19 Z62NS -3 / - 3 ✓ Closing fragment
09-08 05:42 80m - / -8 ON6LEO +5 / - 3 ✓ Closing fragment
09-08 05:39 80m - / - ON6LEO +8 / - 3 Partial capture
09-08 05:04 80m -24 / -16 HB0CC -12 / - 3 ✓ Closing observed
09-06 03:36 40m - / -11 T77NC -1 / - 2 ✓ Closing fragment
09-06 03:30 40m - / -9 T77NC 0 / - 3 Partial capture
09-06 03:23 40m - / - F5PBG -17 / - 2 ✓ Closing fragment
09-06 03:22 40m - / -20 UT2AU +20 / - 3 ✓ Closing fragment
08-31 03:11 40m - / - G5TV -6 / - 3 Partial capture
08-31 03:09 40m -10 / - RI1FJL - / -19 9 Partial capture
08-31 03:01 40m - / - G5TV -4 / - 2 Partial capture
08-31 03:01 40m -14 / - RI1FJL - / - 8 Partial capture
08-28 03:08 40m - / -14 YL3CU +5 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
042315 +20  385  KS4YT DL1RNW JO62 (x3)
042445 -24 1505  KS4YT ON1JP -09
042445 +17  385  KS4YT DL1RNW R-19 (x2)
042545 -22 2245  KS4YT MW7TTA IO73
042545 +18  385  KS4YT DL1RNW R-11 (x2)
042715 -17 2245  KS4YT MW7TTA IO73
042715 +22  385  KS4YT DL1RNW 73
042900 -24 1231  IN3WZS KS4YT -24
043115  +6 2685  KS4YT DK2MAX JN58
052100  -9  855  KS4YT EA6LU -16 (x2)
40m 
UTC    dB Audio  Message
031245  -6  681  RI1FJL KS4YT R-19
031300  -8 1853  KS4YT G5TV IO93
031315  -7  681  RI1FJL KS4YT R-19
030400  -8  499  KS4YT T77NC -15 (x2)
032200 +20  585  KS4YT UT2AU KO61 (x3)
032300 -19 2147  KS4YT F5PBG IN78 (x2)
033030  +0  499  KS4YT T77NC -09 (x5)

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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