KF9UG — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Most frequent locator attributed to this token: EN71

Receiver-side FT8 activity involving KF9UG, decoded by SO8OO in southeastern Poland. 1,867 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-07.

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 1,867 FT8 messages attributed to KF9UG as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (58%), followed by 40 m (31%) and 80 m (11%). Most decodes (96%) fell within the six-hour window 22:00-04:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.

Overview

1,867
Messages attributed
40
UTC dates decoded
225
Active 15-min windows
-14 dB
Estimated median S/N

Bands

80m · 209 40m · 571 20m · 1,087
First attributed message: 2026-06-08
Last attributed message: 2026-09-07 02:00 UTC

Observed FT8 message patterns

Attributed sample
1,867 messages
Active dates
40 UTC dates
Estimated median S/N
-14 dB
Estimated 10th-90th percentile
-21 to -7 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 740, moderate (-15 to -9 dB) 755, strong (≥ -8 dB) 372.

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 KF9UG 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 KF9UG

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
EN71 · 1,327 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
7,607 km (approx.)
Last such locator decoded
2026-09-07 01:50 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 UTCBandKF9UG S/NCounterpartCounterpart S/NMsgsCapture
09-10 03:52 80m - / - CT2GQA -17 / - 3 Partial capture
09-10 03:48 80m - / 0 KY2J -18 / - 2 Partial capture
09-10 03:44 80m - / -18 9A5E +10 / - 2 ✓ Closing fragment
09-10 03:17 80m - / -17 PI4DX -7 / - 2 ✓ Closing fragment
09-10 02:45 40m - / -3 PV8AJ -9 / - 2 ✓ Closing fragment
09-10 02:43 40m - / - G5STU -13 / - 3 ✓ Closing fragment
09-10 02:23 40m - / -4 EH3PDA +2 / - 2 ✓ Closing fragment
09-10 02:18 40m - / -2 F5MOO +4 / - 2 ✓ Closing fragment
09-10 01:54 40m - / -7 G5STU +2 / - 4 ✓ Closing fragment
09-10 01:48 40m - / -7 G5STU -6 / - 4 ✓ Closing fragment
09-10 01:19 40m - / -9 G5STU 0 / - 4 ✓ Closing fragment
09-10 01:06 40m - / -7 M7UKV +4 / - 4 Partial capture
09-09 23:29 40m - / -9 EA5JLN -9 / - 3 ✓ Closing fragment
09-09 22:37 40m - / -17 EA4HPY -4 / - 2 ✓ Closing fragment
09-09 21:44 40m - / -25 EA1KCU -4 / - 2 ✓ Closing fragment
09-09 20:53 40m - / -2 K1ZZ -18 / - 2 ✓ Closing fragment
09-09 02:51 80m - / -20 PI4DX -2 / - 2 ✓ Closing fragment
09-09 02:19 40m - / - KE4EB -12 / - 2 ✓ Closing fragment
09-09 01:00 40m - / - 5Z4VJ -6 / - 3 Partial capture
09-08 23:35 40m - / -8 EH5PDA -4 / - 3 Partial capture
09-08 22:42 40m - / -13 W2MF -4 / - 2 ✓ Closing fragment
09-08 21:53 40m - / -17 EH1PDA -14 / - 2 ✓ Closing fragment
09-08 18:29 80m - / - R1AV +1 / - 4 Partial capture
09-08 02:03 40m - / -16 SY1BKQ +3 / - 4 ✓ Closing fragment
09-08 02:00 80m - / - PA3KUS -12 / - 11 Partial capture
09-08 01:29 40m - / -4 W4PSK -6 / - 2 ✓ Closing fragment
09-08 00:49 40m - / -15 RD9U +10 / - 4 ✓ Closing fragment
09-07 01:55 80m - / +1 K1YOW -23 / - 2 ✓ Closing fragment
09-07 01:49 40m - / -10 G0VDZ 0 / - 2 ✓ Closing fragment
09-07 01:42 40m -18 / - PR2RG - / - 2 Partial capture
09-07 01:42 80m - / +1 W3DQS -8 / - 2 ✓ Closing fragment
09-07 01:39 40m -17 / - KO4WIL - / -8 4 ✓ Closing fragment
09-07 01:32 40m -14 / - KD9WAM - / -2 4 ✓ Closing fragment
09-07 01:30 40m -14 / - KJ5OIL - / -2 3 ✓ Closing fragment
09-07 01:28 40m -14 / - NM0J - / -7 2 Partial capture
09-07 01:20 40m -17 / -5 G3VCQ -13 / -13 6 ✓ Full exchange observed
09-07 01:16 40m -16 / - SP6AMI - / -11 2 ✓ Closing fragment
09-07 01:05 40m -18 / - KE8BUF - / -1 4 Partial capture
09-07 01:03 40m - / -18 R2BQM -3 / - 3 Partial capture
09-07 01:02 40m -14 / - NB8G - / -11 2 Partial capture
09-07 01:00 40m -17 / - SQ8NA -14 / - 3 ✓ Closing observed
09-07 00:46 40m - / -16 DA1MHH -7 / - 5 Partial capture
09-07 00:44 40m - / -22 R3ST -1 / - 4 ✓ Closing fragment
09-06 02:55 80m - / - LA1QRO +2 / - 5 Partial capture
09-06 02:41 80m - / - DO5PY -4 / - 2 Partial capture
09-06 02:39 80m - / - OZ8MW -6 / - 4 Partial capture
09-06 01:38 80m - / - LA1QRO +10 / - 2 Partial capture
09-06 01:35 80m - / - RX6DA +7 / - 10 Partial capture
09-06 01:35 80m - / - UA4FKT +8 / - 3 Partial capture
09-06 01:32 80m - / -3 OZ7KJ/P +6 / - 5 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

80m 
UTC    dB Audio  Message
183000  +1  841  KF9UG R1AV KP50 (x2)
020815 -13  803  KF9UG W3DQS RR73
025145  +1  979  KF9UG PI4DX -20 (x4)
034330  -5 1047  KF9UG IU7GSN JN81
034400 +10 2135  KF9UG 9A5E -18 (x2)
034800 -18  929  KF9UG KY2J +00 (x2)
035200 -17 1794  KF9UG CT2GQA IM58 (x3)
40m 
UTC    dB Audio  Message
014900  -4 1011  KF9UG G5STU RR73 (x6)
021830  +4 2307  KF9UG F5MOO -02 (x2)
022300  +3  567  KF9UG EH3PDA -04 (x2)
024330 -14 1010  KF9UG G5STU RR73 (x3)
024530  -8 1344  KF9UG PV8AJ -03 (x2)
20m 
UTC    dB Audio  Message
190700  +3  811  KF9UG F4LQM 73
191700 -12  811  KF9UG <...> R-24 (x3)
193130 -14  941  KF9UG TA3D KM39
193900 -15  811  KF9UG PD3LKN 73
193930 -21 1412  KF9UG ON4FL -14
200330  -9 2354  KF9UG IU0NAD R-13 (x2)
202015 -17 2069  KF9UG F5OQK RR73 (x2)
203015  +1  921  KF9UG EA7ALL R-11
203345 +20 2900  KF9UG F4MAG +03 (x2)
180230 -18 2363  KF9UG IZ7NLJ JN81
60m 
UTC    dB Audio  Message
024815  -7 2431  KF9UG SV1ENM R-18 (x2)
004230  -3 1598  KF9UG F4ENK JN06 (x3)
004800  +2 1502  KF9UG F5OHS JN19 (x5)
005100  -6 2030  KF9UG OR7K -19 (x2)
005300 -11 1422  KF9UG EC3A -11 (x2)
005930  -2 1815  KF9UG DK4BP JN58
10m 
UTC    dB Audio  Message
003815 -22 1592  KF9UG IT9KQR R-20

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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