F4LNM — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: France Most frequent locator attributed to this token: JN09

Receiver-side FT8 activity involving F4LNM, decoded by SO8OO in southeastern Poland. 8,965 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 88 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 8,965 FT8 messages attributed to F4LNM as the transmitting token by decoded message structure across 88 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 10 m (10%) and 40 m (9%). Most decodes (83%) fell within the six-hour window 04:00-10:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -7.7 dB.

Overview

8,965
Messages attributed
88
UTC dates decoded
839
Active 15-min windows
-7.7 dB
Estimated median S/N

Bands

80m · 55 40m · 849 20m · 7,131 10m · 930
First attributed message: 2026-06-07
Last attributed message: 2026-09-14 05:52 UTC

Observed FT8 message patterns

Attributed sample
8,965 messages
Active dates
88 UTC dates
Estimated median S/N
-7.7 dB
Estimated 10th-90th percentile
-18 to +5.2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,538, moderate (-15 to -9 dB) 2,634, strong (≥ -8 dB) 4,793.

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 F4LNM 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 F4LNM

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
JN09 · 5,693 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,491 km (approx.)
Last such locator decoded
2026-09-14 05:49 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 UTCBandF4LNM S/NCounterpartCounterpart S/NMsgsCapture
09-14 05:47 40m -2 / - SV8/F6BLP - / -14 9 Partial capture
09-14 05:45 40m -4 / - KT8Q - / - 5 Partial capture
09-13 06:05 40m -8 / - HK3W - / - 3 Partial capture
09-13 06:01 40m - / -10 SP1ZMO -9 / - 2 ✓ Closing fragment
09-13 05:55 40m -11 / -12 YO2CK +4 / - 5 Partial capture
09-13 05:53 40m -5 / - RK3YWA -12 / -19 4 ✓ Closing observed
09-13 05:52 40m - / -7 EH3ST -14 / - 2 ✓ Closing fragment
09-13 05:49 40m -12 / -19 EW2GI -1 / -11 7 ✓ Full exchange observed
09-13 05:48 40m -13 / - EA3IWJ/P - / -9 3 ✓ Closing fragment
09-13 05:45 40m -1 / - KT8Q - / - 5 Partial capture
09-13 05:44 40m -11 / - SQ2RBY/P - / -8 2 Partial capture
09-13 05:41 40m -11 / - SP3FNW - / -15 6 ✓ Closing fragment
09-13 05:38 40m -7 / - KD3CZT - / - 4 Partial capture
09-13 05:37 40m -2 / - KI4NPG - / - 2 Partial capture
09-13 05:36 40m -6 / - PY2DPM - / -7 2 ✓ Closing fragment
09-13 05:34 40m -7 / -10 9A6TT +4 / -6 5 ✓ Full exchange observed
09-12 08:37 40m - / -3 OT7K +5 / - 2 ✓ Closing fragment
09-11 05:39 40m -2 / -17 UA3YPS -8 / -18 13 ✓ Full exchange observed
09-11 05:37 40m -5 / - IK2VFW - / -6 3 ✓ Closing fragment
09-11 05:33 40m +1 / - DG5AR - / -12 4 ✓ Closing fragment
09-11 05:30 40m -4 / - N1EDF - / - 5 Partial capture
09-11 05:28 40m +6 / - J38DX - / - 5 Partial capture
09-11 05:21 40m -4 / - 1F3SW - / -18 5 ✓ Closing fragment
09-11 05:19 40m -2 / -7 YL3CU +1 / -8 5 ✓ Full exchange observed
09-11 05:17 40m -1 / - N1EDF - / - 2 Partial capture
09-11 05:13 40m -6 / - PD3JVR - / -15 3 ✓ Closing fragment
09-11 05:03 40m -12 / - N1EDF - / - 2 Partial capture
09-11 04:57 40m -5 / - DC9GT - / - 3 ✓ Closing fragment
09-11 04:51 40m -14 / - PA3EVY - / - 2 Partial capture
09-11 04:48 40m -10 / - UR5SG - / -14 3 ✓ Closing fragment
09-11 04:45 40m -10 / -4 HB9FGO -7 / -10 8 ✓ Full exchange observed
09-11 04:38 40m +2 / - WA9CAT - / - 2 Partial capture
09-11 04:36 40m -6 / -4 IW2MYH -5 / -15 7 ✓ Full exchange observed
09-11 04:32 40m -2 / - PY8WW - / - 2 Partial capture
09-11 04:30 40m +8 / - J38DX - / - 3 Partial capture
09-11 04:28 40m -4 / - KQ4EZN - / -14 5 ✓ Closing fragment
09-11 04:25 40m -4 / - HJ4RUS - / -15 5 ✓ Closing fragment
09-11 04:24 40m -2 / - PY8WW - / - 3 Partial capture
09-11 04:23 40m -4 / -13 RZ6L +14 / -8 5 ✓ Full exchange observed
09-11 04:21 40m +2 / -10 HZ1TT -18 / -11 6 ✓ Full exchange observed
09-11 04:20 40m +2 / -7 LZ1FG +1 / -11 5 ✓ Full exchange observed
09-11 04:18 40m -13 / - SO100PKP - / -15 2 Partial capture
09-11 04:14 40m -14 / -13 RC9WC -23 / - 3 ✓ Closing observed
09-11 04:12 40m -16 / - EH3PDA -10 / - 2 ✓ Closing observed
09-09 05:24 80m - / -14 5P1KZX -2 / - 2 ✓ Closing fragment
09-09 05:06 80m - / -9 DO1ID +8 / - 2 ✓ Closing fragment
09-09 05:05 80m -21 / -5 F5RRS -7 / - 4 ✓ Closing observed
09-09 05:04 80m -22 / - DL3MIB +12 / -11 3 ✓ Closing observed
09-09 05:03 80m -24 / - DJ2PW - / -12 3 ✓ Closing fragment
09-09 04:56 80m - / -10 DO1MER -20 / - 2 ✓ Closing fragment

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
060730  -7 1095  HK3W F4LNM JN09
054515  -4 2693  KT8Q F4LNM JN09 (x5)
054745 -10 2693  SV8/F6BLP F4LNM JN09 (x9)
80m 
UTC    dB Audio  Message
050415 -24 1102  DJ2PW F4LNM 73
050445 -24 1101  DL3MIB F4LNM -11 (x2)
050530  -5 1886  F4LNM F5RRS JN36
050530 +12  914  F4LNM DL3MIB 73
050600  -7 1886  F4LNM F5RRS R-05
050615 -21 1101  F5RRS F4LNM RR73
050630  -9 1886  F4LNM F5RRS 73
050630  +5  382  F4LNM DO1ID -09 (x2)
051300  -6  536  F4LNM G0BLB IO81
051730 -10 1757  F4LNM IK2LHP RR73
052445  -2 1235  F4LNM 5P1KZX -14 (x2)
052845 -16 1615  F4LNM DA6OOM RR73
20m 
UTC    dB Audio  Message
090330  +3 1749  DK5TX F4LNM JN09 (x3)
090500  +1 1874  EA4HOT F4LNM JN09 (x2)
090600  +9  424  DL1SUZ F4LNM JN09 (x4)
090815 +10 2701  SP9SIR F4LNM JN09 (x3)
091015  +6 1318  HK3W F4LNM JN09 (x2)
051930  -6  593  F4LNM UB8AHK +00
10m 
UTC    dB Audio  Message
122630  -9  728  UT3SO F4LNM 73
123000 -11  851  HA7LJ F4LNM 73
123030 -11 2475  F4GHN F4LNM JN09
123745 -16 1507  <...> F4LNM JN09 (x5)
130400 -18 2089  E73B F4LNM JN09
130600 -22 1756  PT7BI F4LNM JN09 (x2)
130800 -24 1756  US7KC F4LNM -08 (x2)
131100 -22 1569  PY4WVZ F4LNM JN09 (x2)

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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