F4LEM — 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: France Most frequent locator attributed to this token: JN37

Receiver-side FT8 activity involving F4LEM, decoded by SO8OO in southeastern Poland. 170 FT8 messages attributed to this token as transmitter, on 40m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-06-22 and 2026-10-09.

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 170 FT8 messages attributed to F4LEM as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (71%), followed by 10 m (29%). Several six-hour UTC windows tied for the largest share (76%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.

Overview

170
Messages attributed
17
UTC dates decoded
33
Active 15-min windows
-11 dB
Estimated median S/N

Bands

40m · 120 10m · 50
First attributed message: 2026-06-22
Last attributed message: 2026-10-09 08:50 UTC

Observed FT8 message patterns

Attributed sample
170 messages
Active dates
17 UTC dates
Estimated median S/N
-11 dB
Estimated 10th-90th percentile
-17 to -6 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 37, moderate (-15 to -9 dB) 91, strong (≥ -8 dB) 42.

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 F4LEM 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 F4LEM

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
JN37 · 108 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,116 km (approx.)
Last such locator decoded
2026-10-09 08:50 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 UTCBandF4LEM S/NCounterpartCounterpart S/NMsgsCapture
10-23 14:52 40m - / -10 DL1TRK -10 / - 3 Partial capture
10-09 08:50 40m -12 / - LA6RJA - / -12 2 Partial capture
10-09 08:48 40m - / - DB2HA -4 / - 9 Partial capture
10-09 08:48 40m - / - S51PV -12 / - 6 Partial capture
10-09 08:46 40m -17 / - G3WW - / -5 3 ✓ Closing fragment
10-09 08:45 40m -10 / - G0OYQ - / -7 2 ✓ Closing fragment
10-09 08:44 40m -10 / - S51TN -8 / - 2 ✓ Closing observed
10-09 07:49 40m -9 / - ON3ANY -6 / +1 5 ✓ Full exchange observed
10-09 07:48 40m -13 / - F5PEG - / - 2 Partial capture
10-09 07:46 40m -13 / - M0WOO - / -4 2 ✓ Closing fragment
10-09 07:45 40m -14 / - K3RH - / -20 2 ✓ Closing fragment
10-09 07:43 40m -8 / - EW4DX - / - 2 Partial capture
10-09 07:42 40m -10 / - EA5OL - / -15 2 ✓ Closing fragment
10-09 07:39 40m - / +10 DG3AWF -13 / - 5 Partial capture
10-09 07:38 40m -12 / 0 SQ9SET -12 / -14 8 ✓ Full exchange observed
10-09 07:37 40m -10 / - EI7IN - / -14 2 ✓ Closing fragment
10-09 07:36 40m -6 / - PD0ME -9 / -7 4 ✓ Closing observed
10-09 07:34 40m -10 / - N0BUZ - / - 2 Partial capture
10-08 14:05 40m -11 / - DB1BC - / -11 3 ✓ Closing fragment
10-08 14:04 40m -10 / - G3VCQ - / -12 2 Partial capture
10-08 14:02 40m - / - S51PV -10 / - 6 Partial capture
10-07 08:07 40m -12 / - M7HQE - / -22 3 Partial capture
10-07 08:07 40m - / - HG8LXL -8 / - 4 Partial capture
10-07 08:06 40m -11 / - DC7LR -15 / -5 4 ✓ Full exchange observed
10-07 08:04 40m -9 / - M7JVH - / - 3 Partial capture
10-07 08:00 40m -18 / - EA4IPN - / -19 3 ✓ Closing fragment
10-07 07:59 40m - / - IZ4AIF -7 / - 2 Partial capture
10-07 07:59 40m - / -15 DG6TOM -7 / - 3 ✓ Closing fragment
10-07 07:59 40m - / - HG8LXL -5 / - 4 Partial capture
10-05 08:12 40m -10 / -21 YO3GNF -4 / - 11 Partial capture
10-05 08:11 40m -7 / -7 DL7DF -6 / -17 5 ✓ Full exchange observed
10-05 08:09 40m -12 / - G3TKT - / -3 2 ✓ Closing fragment
10-05 08:07 40m -12 / - SQ9SET - / - 3 Partial capture
10-05 08:05 40m -16 / - IQ0YA - / - 2 ✓ Closing fragment
10-05 08:03 40m -12 / -4 OK1HEH +2 / -13 5 ✓ Full exchange observed
10-05 08:03 40m - / - HG8LXL -4 / - 4 Partial capture
10-05 08:02 40m -8 / - AO5CV - / -18 2 ✓ Closing fragment
10-05 08:00 40m -14 / - LZ1DPP - / - 4 Partial capture
10-05 07:56 40m -9 / - M7FHO - / - 3 ✓ Closing fragment
10-05 07:54 40m -3 / - EA7ALL - / - 2 Partial capture
10-03 14:58 10m - / - 4Z5AY +2 / - 4 Partial capture
10-03 14:47 40m -6 / - IQ0AAX - / -12 3 ✓ Closing fragment
10-03 14:46 40m - / - F6EQZ -8 / - 3 Partial capture
10-03 14:45 40m -10 / - RM1O - / - 2 Partial capture
10-02 09:11 40m - / -5 DM5KK +4 / - 2 ✓ Closing fragment
10-02 09:03 40m - / - DL9KM -4 / - 6 Partial capture
09-28 07:58 40m -16 / 0 LZ2PAJ -13 / - 6 Partial capture
09-27 08:04 40m -16 / - PD9T - / -7 2 ✓ Closing fragment
09-27 07:59 40m -14 / -7 DG3FFM -12 / - 2 Partial capture
09-25 08:10 40m -12 / - TK4QP - / - 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

40m 
UTC    dB Audio  Message
084915  -2 2589  F4LEM DB2HA JO52 (x2)
085015 -11 2464  F4LEM S51PV JN76
085015 -13  790  LA6RJA F4LEM JN37
085015  -4 2589  F4LEM DB2HA JO52
085045  -7 2462  F4LEM S51PV JN76
085045 -11  789  LA6RJA F4LEM R-12
085045  -3 2589  F4LEM DB2HA JO52
085115 -16 2460  F4LEM S51PV JN76
085115  -3 2589  F4LEM DB2HA JO52 (x3)
145230  -8  957  F4LEM DL1TRK -10 (x3)
10m 
UTC    dB Audio  Message
140745 -16 1044  UR5KC F4LEM JN37
141100 -17 1046  LU4FYF F4LEM JN37
141430  +3 1233  F4LEM LZ1EV -14 (x2)
141845  -3  384  EA1FIC F4LEM JN37
141915  -2  384  CQ F4LEM JN37 (x3)
142115  -8  649  OZ1LGJ F4LEM JN37 (x3)
145845  -2 2817  F4LEM 4Z5AY KM72 (x4)

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

FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee