F4NLM — 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: JN25

Receiver-side FT8 activity involving F4NLM, decoded by SO8OO in southeastern Poland. 898 FT8 messages attributed to this token as transmitter, on 160m, 80m, 40m, 20m, 10m, across 28 UTC dates in the available aggregate history. Observed between 2026-06-15 and 2026-10-17.

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 898 FT8 messages attributed to F4NLM as the transmitting token by decoded message structure across 28 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (79%), followed by 40 m (10%) and 10 m (6%). Most decodes (62%) 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 -6.1 dB.

Overview

898
Messages attributed
28
UTC dates decoded
130
Active 15-min windows
-6.1 dB
Estimated median S/N

Bands

160m · 38 80m · 7 40m · 89 20m · 711 10m · 53
First attributed message: 2026-06-15
Last attributed message: 2026-10-17 12:52 UTC

Observed FT8 message patterns

Attributed sample
898 messages
Active dates
28 UTC dates
Estimated median S/N
-6.1 dB
Estimated 10th-90th percentile
-18 to +4 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 158, moderate (-15 to -9 dB) 228, strong (≥ -8 dB) 512.

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 F4NLM 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 F4NLM

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
JN25 · 601 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,346 km (approx.)
Last such locator decoded
2026-10-17 12:52 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 UTCBandF4NLM S/NCounterpartCounterpart S/NMsgsCapture
10-17 12:51 10m -19 / - 8Q7PR - / - 3 Partial capture
10-17 12:04 10m -20 / - <...> - / - 2 Partial capture
10-17 09:56 10m -14 / - JA3VGL - / - 6 Partial capture
10-17 09:53 10m -11 / - BI3AMG - / - 4 Partial capture
10-17 09:52 10m -16 / - BI6PWL - / - 2 Partial capture
10-12 04:47 160m - / - SP9UPH +10 / - 2 Partial capture
10-12 04:45 160m -17 / - OM7ASP - / -19 2 Partial capture
10-12 04:41 160m -16 / -19 GU4WRP -11 / -18 9 ✓ Full exchange observed
10-12 04:40 160m -17 / -1 F4JKT -8 / - 5 ✓ Closing observed
10-12 04:38 160m -17 / - OO9A - / - 5 Partial capture
10-12 04:32 160m -18 / -20 F5RRS 0 / -1 5 ✓ Full exchange observed
10-12 04:31 160m -15 / +6 DK7ZT +3 / -4 7 ✓ Full exchange observed
10-12 04:29 160m -18 / -7 G0BLB -11 / -6 6 ✓ Full exchange observed
10-12 04:29 160m -19 / -8 EA4GOY -16 / -4 5 ✓ Full exchange observed
10-12 04:27 160m -14 / -9 F4EGM -20 / -14 4 ✓ Full exchange observed
10-12 04:26 160m -14 / - DK7ZT - / -2 3 ✓ Closing fragment
10-12 04:23 160m -16 / - IT9NOV - / - 5 Partial capture
10-12 04:22 160m -19 / +9 F6ECI 0 / 0 5 ✓ Full exchange observed
10-07 04:53 80m -20 / - VA3SK - / - 2 Partial capture
09-17 06:05 40m - / - IU8RFW -18 / - 2 Partial capture
09-17 06:02 40m -15 / - EA8WU - / -9 3 ✓ Closing fragment
09-17 05:49 40m -19 / - J88IH - / - 4 Partial capture
09-17 05:44 40m -14 / - OA4ENG - / -15 8 Partial capture
09-17 05:29 80m - / +1 ON7HM -22 / - 3 ✓ Closing fragment
09-17 05:19 80m - / -4 DK7ZT +1 / - 3 Partial capture
09-15 05:39 40m - / - LZ2VQ -9 / - 3 Partial capture
09-15 05:37 40m - / - YO6LM +2 / - 2 Partial capture
09-15 05:34 40m -19 / - ZL1OGX - / -10 4 Partial capture
09-14 19:26 40m - / - DC5BO -9 / - 3 Partial capture
09-14 19:24 40m - / -6 M0BEW -2 / - 3 Partial capture
09-14 19:19 40m - / - M8FQT -16 / - 3 Partial capture
09-14 19:14 40m - / - DJ0MAB -3 / - 4 Partial capture
09-14 19:08 40m - / -4 M0BEW -3 / - 3 Partial capture
09-14 19:08 40m - / - IV3VFP -1 / - 3 Partial capture
09-14 18:55 40m -12 / - PD0RCQ - / -10 5 Partial capture
09-14 18:50 40m - / - PD0RCQ -7 / - 2 Partial capture
09-14 18:44 40m - / - HG8LXL -4 / - 4 Partial capture
08-17 14:20 20m -8 / - JR2SHA - / - 2 Partial capture
08-17 14:18 20m -7 / - MM/F4MFS - / -11 3 Partial capture
08-10 20:23 80m - / -1 F1PBZ +3 / - 3 ✓ Closing fragment
08-10 20:15 160m - / -17 PA3FR -12 / - 3 ✓ Closing fragment
08-07 09:51 10m -10 / - TA7D - / - 2 Partial capture
07-31 18:57 40m - / -18 4X5MZ -14 / - 3 ✓ Closing fragment
07-31 16:02 20m -20 / - YB7SKM - / - 3 Partial capture
07-26 15:39 20m -20 / - VU2FR - / -13 2 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m 
UTC    dB Audio  Message
095330 -11 1902  BI3AMG F4NLM JN25 (x4)
095630 -19 1901  JA3VGL F4NLM JN25 (x6)
120400 -16 1903  <...> F4NLM JN25 (x2)
125100 -23 1902  8Q7PR F4NLM JN25 (x3)
160m 
UTC    dB Audio  Message
044130  -9 1433  F4NLM F4JKT -01 (x2)
044215 -21 1804  F4JKT F4NLM 73
044245 -19 1804  GU4WRP F4NLM JN25 (x2)
044330 -11 2162  F4NLM GU4WRP -19
044345 -20 1804  GU4WRP F4NLM R-18
044400 -10 2162  F4NLM GU4WRP -19
044415 -15 1804  GU4WRP F4NLM R-18
044430 -13 2162  F4NLM GU4WRP RR73
044445 -16 1804  GU4WRP F4NLM 73
044545 -19 1804  OM7ASP F4NLM -19 (x2)
044700 +10 1734  F4NLM SP9UPH JO90 (x2)
80m 
UTC    dB Audio  Message
202445  +1 2557  F4NLM F1PBZ RR73
053745 -24 2112  KB2ELA F4NLM JN25
054200 -23 2111  WZ4K F4NLM JN25
051815 -24 1807  W8CO F4NLM 73
051915 -24 1807  F5LMJ F4NLM RRR
051930  +3 1109  F4NLM DK7ZT -04 (x3)
052900 -20 2160  F4NLM ON7HM JO10 (x3)
045300 -21 1807  VA3SK F4NLM JN25 (x2)
045415  -9 1720  F4NLM F4LZZ JN09
041630  -8 1806  K2SFS F4NLM JN25
40m 
UTC    dB Audio  Message
054645 -14 1843  OA4ENG F4NLM -15 (x4)
054915 -19 1843  J88IH F4NLM JN25 (x4)
055845 -13 1843  TA3NK F4NLM JN25
060245 -16 1843  EA8WU F4NLM JN25 (x3)
060530 -23 1843  F4NLM IU8RFW JN70 (x2)
054145 -13 1844  YV6BXN F4NLM JN25
20m 
UTC    dB Audio  Message
153900 -21 2080  VU2FR F4NLM -13 (x2)
160230 -22 1656  YB7SKM F4NLM JN25 (x3)
141845  -9 2080  MM/F4MFS F4NLM JN25 (x3)
142045  -8 2080  JR2SHA F4NLM JN25 (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.

CW

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

Explore CW reception at SO8OO

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