F4KOL — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN03

Receiver-side FT8 activity involving F4KOL, decoded by SO8OO in southeastern Poland. 173 FT8 messages attributed to this token as transmitter, on 40m, 20m, 10m, across 9 UTC dates in the available aggregate history. Observed between 2026-07-10 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 173 FT8 messages attributed to F4KOL as the transmitting token by decoded message structure across 9 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (60%), followed by 20 m (24%) and 10 m (16%). Most decodes (79%) fell within the six-hour window 18:00-00:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (81%); the estimated median was -4 dB.

Overview

173
Messages attributed
9
UTC dates decoded
20
Active 15-min windows
-4 dB
Estimated median S/N

Bands

40m · 104 20m · 42 10m · 27
First attributed message: 2026-07-10
Last attributed message: 2026-08-27 08:58 UTC

Observed FT8 message patterns

Attributed sample
173 messages
Active dates
9 UTC dates
Estimated median S/N
-4 dB
Estimated 10th-90th percentile
-10 to +6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 33, strong (≥ -8 dB) 140.

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 F4KOL 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 F4KOL

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
JN03 · 55 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,732 km (approx.)
Last such locator decoded
2026-08-27 08:54 UTC

Other locator fields attributed to this token: JN13 (16).

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 UTCBandF4KOL S/NCounterpartCounterpart S/NMsgsCapture
08-27 08:58 10m -1 / - YD1FRU - / -3 2 ✓ Closing fragment
08-27 08:56 10m +6 / - JE7GXQ - / -11 2 ✓ Closing fragment
08-27 08:54 10m +11 / - RA4CIY - / -14 2 ✓ Closing fragment
08-27 08:44 10m -3 / - 5W1SA - / -12 7 ✓ Closing fragment
08-27 08:43 10m -10 / - IQ4JO - / -15 2 ✓ Closing fragment
08-27 08:42 10m -8 / - JE7GXQ - / -13 2 Partial capture
08-25 17:58 20m +12 / - SP6AXW - / -8 2 ✓ Closing fragment
08-25 17:57 20m +2 / -18 R8LCA -4 / -11 5 ✓ Full exchange observed
08-25 17:56 20m +9 / -8 BG7BMG -18 / - 3 ✓ Closing observed
08-25 17:55 20m - / -8 9K2MP -12 / - 3 ✓ Closing fragment
08-25 17:52 20m +5 / -10 EX7DY -16 / -10 3 Partial capture
08-25 17:49 20m +3 / - BU2FW - / -14 3 ✓ Closing fragment
08-21 11:27 10m -8 / - DN9MAI - / -10 3 ✓ Closing fragment
08-21 11:23 10m - / +2 DL3MIB -4 / - 4 ✓ Closing fragment
08-16 19:20 20m -8 / - TA2EE -14 / -11 3 ✓ Closing observed
08-16 19:19 20m -7 / - 4O4DB - / -5 3 ✓ Closing fragment
08-16 19:15 20m +8 / - 5N0YEN - / -17 3 ✓ Closing fragment
08-16 19:13 20m +2 / - BA8BLK - / -10 2 ✓ Closing fragment
08-16 19:12 20m +4 / - BH4ECL - / -5 2 ✓ Closing fragment
08-16 19:11 20m +6 / - RA1QX - / -8 2 ✓ Closing fragment
08-16 19:10 20m 0 / - BG7BVI - / -3 2 ✓ Closing fragment
08-16 19:09 20m -8 / - RW1CW - / +1 2 ✓ Closing fragment
08-16 19:02 20m -13 / -14 R1QD -19 / -2 2 Partial capture
08-16 19:01 20m -3 / - 5N0YEN - / - 12 Partial capture
07-31 23:48 40m -12 / +1 YO6LM -11 / -7 4 ✓ Full exchange observed
07-31 23:47 40m -12 / - UA9CR -15 / - 2 ✓ Closing observed
07-31 23:47 40m -12 / - EA1IOK - / -6 2 ✓ Closing fragment
07-31 23:43 40m -9 / - CE6UFF - / -11 2 Partial capture
07-27 19:10 40m -14 / - F4MID - / -9 2 ✓ Closing fragment
07-27 19:04 40m -14 / - EA8BFH - / - 2 Partial capture
07-13 23:23 40m -6 / - EX2K - / -6 7 ✓ Closing fragment
07-13 23:17 40m -3 / - YD6HMM - / -11 2 ✓ Closing fragment
07-13 23:15 40m -2 / - EA6AOD - / - 2 Partial capture
07-13 23:10 40m -2 / - 4S6ARW - / -14 3 ✓ Closing fragment
07-13 22:48 40m -7 / - OY/DO1BBM/M - / -3 2 Partial capture
07-13 22:47 40m -4 / - <...> - / - 2 Partial capture
07-13 22:42 40m +6 / - PY4QQ - / -20 2 ✓ Closing fragment
07-13 22:39 40m +4 / - OA4ENG - / -15 2 Partial capture
07-13 22:36 40m -1 / - <...> - / - 2 Partial capture
07-13 22:33 40m -4 / - VU2JO - / -15 3 ✓ Closing fragment
07-13 22:31 40m -5 / - UN8DSW - / -4 3 ✓ Closing fragment
07-13 22:30 40m -6 / - DK5ON - / -3 2 ✓ Closing fragment
07-13 22:23 40m -4 / - EA4D - / -1 3 ✓ Closing fragment
07-13 22:21 40m -5 / - DJ3HW -16 / -6 3 Partial capture
07-13 22:21 40m -3 / - IZ8PPI - / -5 2 ✓ Closing fragment
07-13 22:20 40m -3 / - YO9PH -21 / - 2 ✓ Closing observed
07-13 22:19 40m -4 / - SP9MOA - / -4 2 ✓ Closing fragment
07-13 22:18 40m -2 / -3 RA5BQ -13 / -5 4 ✓ Full exchange observed
07-13 22:16 40m -3 / - 9M2RSI - / -19 3 ✓ Closing fragment
07-13 21:47 40m -4 / -2 DL7ACA -1 / +2 6 ✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
084545  -4  797  5W1SA F4KOL JN03 (x5)
085215 +13 2813  CQ F4KOL JN03 (x3)
085445 +11 2813  RA4CIY F4KOL R-14 (x2)
085545  +9 2813  JA9CWJ F4KOL -13
085615  +2 2813  JE7GXQ F4KOL -11 (x2)
085815  +0 1174  YD1FRU F4KOL -03 (x2)
20m 
UTC    dB Audio  Message
175230 -15 1514  F4KOL EX7DY -10
175245  +5 1513  EX7DY F4KOL R-10
175530  -8 1080  F4KOL 9K2MP -08 (x2)
175630 -20 2275  F4KOL BG7BMG -08
175630 -15 1080  F4KOL 9K2MP 73
175700 -17 2275  F4KOL BG7BMG RR73
175715  +9 2275  BG7BMG F4KOL 73
175730  -6 2074  F4KOL R8LCA MO27
175745  -1 2074  R8LCA F4KOL -11
175800  -6 2074  F4KOL R8LCA R-18
175815  +6 2074  R8LCA F4KOL RR73
175830  +0 2074  F4KOL R8LCA 73
175845 +11 2520  SP6AXW F4KOL -08 (x2)
40m 
UTC    dB Audio  Message
190430 -14 1077  EA8BFH F4KOL JN03
191030 -14 1076  F4MID F4KOL -09 (x2)
234315  -8  470  CE6UFF F4KOL JN03 (x2)
234630 -11  790  CQ F4KOL JN03
234645  -7  790  F4KOL RD3FY KO85
234700 -12  790  EA1IOK F4KOL -06
234745 -15 1253  F4KOL UA9CR RR73
234800 -12  790  UA9CR F4KOL 73
234815 -11  855  F4KOL YO6LM +01
234830 -12  790  EA1IOK F4KOL RR73
234845 -13  855  F4KOL YO6LM +01
234930 -12  790  YO6LM F4KOL R-07
234945  -8  855  F4KOL YO6LM RR73

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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