KF0YOB — 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: EM49

Receiver-side FT8 activity involving KF0YOB, decoded by SO8OO in southeastern Poland. 3,358 FT8 messages attributed to this token as transmitter, on 20m, across 22 UTC dates in the available aggregate history. Observed between 2026-06-23 and 2026-08-11.

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 3,358 FT8 messages attributed to KF0YOB as the transmitting token by decoded message structure across 22 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Most decodes (55%) fell within the six-hour window 16:00-22:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -12 dB.

Overview

3,358
Messages attributed
22
UTC dates decoded
402
Active 15-min windows
-12 dB
Estimated median S/N

Bands

First attributed message: 2026-06-23
Last attributed message: 2026-08-11 08:02 UTC

Observed FT8 message patterns

Attributed sample
3,358 messages
Active dates
22 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-18.5 to -4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 822, moderate (-15 to -9 dB) 1,513, strong (≥ -8 dB) 1,023.

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.

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 KF0YOB

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
EM49 · 1,792 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
8,104 km (approx.)
Last such locator decoded
2026-08-11 07:34 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 UTCBandKF0YOB S/NCounterpartCounterpart S/NMsgsCapture
08-11 07:51 20m -11 / - M0IOW - / - 5 Partial capture
08-11 07:43 20m - / -12 RW6MZ -12 / - 3 ✓ Closing fragment
08-11 07:42 20m - / - DL1GKH -10 / - 6 Partial capture
08-11 07:37 20m - / - R4FDK -24 / - 2 Partial capture
08-11 07:37 20m - / - DL9IQ -6 / - 3 Partial capture
08-11 07:30 20m - / - RW6MZ -4 / - 2 Partial capture
08-10 20:47 20m - / - DL1YCL -4 / - 2 Partial capture
08-10 20:42 20m - / - EA1FUB -16 / - 5 Partial capture
08-10 20:41 20m - / -20 OE3PIW -12 / - 3 Partial capture
08-10 20:31 20m - / - DL1RAZ -9 / - 4 Partial capture
08-10 20:26 20m - / - DK2FM -6 / - 4 Partial capture
08-10 20:24 20m - / - F4BYA/P -2 / - 3 Partial capture
08-10 20:21 20m - / - DK2SP -7 / - 6 Partial capture
08-10 20:13 20m - / -13 I1EIS -6 / - 3 Partial capture
08-10 20:10 20m - / - DK2FM -8 / - 2 Partial capture
08-10 20:09 20m - / - DL1YCL -8 / - 3 Partial capture
08-10 20:07 20m - / - DK7MT -1 / - 2 Partial capture
08-10 14:16 20m - / - RC9F -17 / - 5 Partial capture
08-09 21:11 20m - / -17 <...> -22 / - 2 Partial capture
08-09 21:06 20m - / - SV7LWI -16 / - 2 Partial capture
08-08 06:52 20m -14 / -6 RZ2A -7 / +5 4 ✓ Full exchange observed
08-08 06:50 20m - / - DK8QS -5 / - 2 Partial capture
08-08 06:49 20m - / - G8OO -10 / - 7 Partial capture
08-08 06:47 20m - / - PA7JWC/P -5 / - 2 Partial capture
08-08 06:44 20m -19 / - SP1ZMO - / -10 2 Partial capture
08-08 06:43 20m - / - PD0KDF -11 / - 6 Partial capture
08-08 06:41 20m - / -10 HB9BUN -1 / - 11 ✓ Closing fragment
08-08 06:35 20m - / - IW5ABF -20 / - 2 Partial capture
08-08 06:34 20m - / - F4HSB -18 / - 2 Partial capture
08-08 06:34 20m - / - RA3RGQ -6 / - 2 Partial capture
08-08 06:31 20m - / - G8OO -6 / - 11 Partial capture
08-08 06:17 20m -17 / - UR5WV - / -3 2 ✓ Closing fragment
08-08 06:12 20m -12 / - OK1UA - / - 2 ✓ Closing fragment
08-08 06:12 20m - / -15 F1PBZ -2 / - 2 Partial capture
08-08 06:09 20m - / - DB7GE -12 / - 4 Partial capture
08-08 06:08 20m -16 / - OK1UA - / +1 3 Partial capture
08-08 06:06 20m -15 / - IU7TUW - / -18 3 Partial capture
08-08 06:02 20m - / -14 F5LOW +10 / - 2 Partial capture
08-08 05:56 20m -18 / -17 F5SZB -13 / -2 11 Partial capture
08-08 05:56 20m -16 / - EA5JXP -24 / -1 4 Partial capture
08-08 05:46 20m - / -7 M6TVD -8 / - 6 ✓ Closing fragment
08-08 05:41 20m -21 / - R5AV - / - 2 ✓ Closing fragment
08-08 05:36 20m -15 / - YO3SL - / -8 2 ✓ Closing fragment
08-08 05:32 20m -16 / - PD0PWH -21 / -15 4 Partial capture
08-08 05:28 20m - / - IK4RVY -10 / - 10 Partial capture
08-08 05:20 20m - / -11 M7KSV -14 / - 2 Partial capture
08-08 05:20 20m - / - PD1DG -19 / - 2 ✓ Closing fragment
08-08 05:14 20m - / -11 RA3TKS 0 / - 2 Partial capture
08-08 04:53 20m - / - RZ9A -15 / - 2 Partial capture
08-08 04:52 20m - / - RA4Y -1 / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

20m
UTC    dB Audio  Message
074345 -10  890  KF0YOB RW6MZ R-12
074345  -4 2087  KF0YOB DL1GKH JN47
074415 -12  889  KF0YOB RW6MZ 73
074415 -11 2087  KF0YOB DL1GKH JN47 (x2)
074645 -21 1983  KF0YOB HB9VIV JN36
074645 -12 2087  KF0YOB DL1GKH JN47
074715 -21 1276  KF0YOB G0OSF IO90
075130 -14  891  M0IOW KF0YOB +19 (x7)

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.

CW

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

Explore CW reception at SO8OO

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