F4LZZ — 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: JN09

Receiver-side FT8 activity involving F4LZZ, decoded by SO8OO in southeastern Poland. 3,080 FT8 messages attributed to this token as transmitter, on 160m, 80m, 60m, 40m, 20m, 10m, across 126 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-11-06.

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 3,080 FT8 messages attributed to F4LZZ as the transmitting token by decoded message structure across 126 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (38%), followed by 10 m (27%) and 20 m (17%). 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 -12 dB.

Overview

3,080
Messages attributed
126
UTC dates decoded
559
Active 15-min windows
-12 dB
Estimated median S/N

Bands

First attributed message: 2026-06-07
Last attributed message: 2026-11-06 07:01 UTC

Observed FT8 message patterns

Attributed sample
3,080 messages
Active dates
126 UTC dates
Estimated median S/N
-12 dB
Estimated 10th-90th percentile
-20 to -2 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 912, moderate (-15 to -9 dB) 1,134, strong (≥ -8 dB) 1,034.

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 F4LZZ

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 · 2,200 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,491 km (approx.)
Last such locator decoded
2026-11-06 07:01 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 UTCBandF4LZZ S/NCounterpartCounterpart S/NMsgsCapture
11-06 05:39 80m -18 / - KI5QQG - / - 2 Partial capture
11-05 20:27 80m -17 / - BA4RF - / -8 4 Partial capture
11-05 20:18 80m -18 / - JA6LCJ - / - 2 Partial capture
11-05 20:16 80m -16 / - JA5AUC - / - 2 Partial capture
11-05 19:58 80m -2 / - F4AHP - / - 2 Partial capture
11-05 19:57 80m -4 / - PA40EUDXF - / +5 3 Partial capture
11-05 19:54 80m - / -13 RK6OQ +6 / - 3 ✓ Closing fragment
11-05 19:51 80m -12 / +7 PA40EUDXF -8 / - 2 Partial capture
11-05 07:17 80m - / -7 DK5OPA -7 / - 4 ✓ Closing fragment
11-05 05:58 40m -12 / - ZL4AS - / - 4 Partial capture
11-05 05:57 40m -12 / - WV2M - / -8 2 Partial capture
11-05 05:52 40m -12 / - N5RJR - / - 2 Partial capture
11-05 05:50 40m -13 / - WV2M - / -7 3 Partial capture
11-05 05:45 40m -9 / - KB5YNF - / -19 6 Partial capture
11-05 05:44 40m -18 / - WV2M - / - 2 Partial capture
11-05 05:44 40m -11 / - KR4HRN - / - 2 Partial capture
11-05 05:39 80m -8 / - KD0BTO - / - 4 Partial capture
11-05 05:36 80m 0 / - DB2TE -2 / -14 4 ✓ Closing observed
11-05 05:35 80m -2 / - KN4PAH - / - 2 Partial capture
11-04 08:26 10m - / -11 UA3FO -21 / - 2 Partial capture
11-04 08:25 10m - / -13 RW3AUK -9 / - 2 ✓ Closing fragment
11-04 06:00 80m -20 / -25 KO3ZDE -22 / -4 7 ✓ Full exchange observed
11-04 05:57 80m -10 / - CT7BRV - / - 2 ✓ Closing fragment
11-04 05:38 80m -7 / - N8AP - / - 3 Partial capture
11-04 05:36 80m -7 / - PF40EUDXF - / - 2 Partial capture
11-03 20:26 80m - / - DL9ATW 0 / - 2 Partial capture
11-03 19:57 80m - / -11 SP1EG +3 / - 3 ✓ Closing fragment
11-03 05:38 160m - / -14 SM5CBM -4 / - 3 Partial capture
11-02 20:50 80m -8 / - II4GCLB - / -8 2 Partial capture
11-02 20:43 80m -1 / - OR40EUDXF - / - 3 Partial capture
11-02 20:39 80m -7 / - 9A60CBM - / -3 3 Partial capture
11-02 20:35 80m -5 / - BA4RF - / - 8 Partial capture
11-02 20:31 80m -10 / - OR40EUDXF - / +5 7 Partial capture
11-02 20:28 80m -9 / - BA4RF - / - 5 Partial capture
11-02 19:53 40m -13 / - YO1BRANCUSI - / - 4 Partial capture
11-02 07:11 40m -16 / - WP4TNN - / -13 2 ✓ Closing fragment
11-02 07:08 40m -17 / - F5SZA - / - 2 Partial capture
11-02 07:07 40m -19 / -5 DL7ACA +17 / - 4 ✓ Closing observed
11-02 05:45 80m -16 / -4 DL4KSD -11 / -6 5 Partial capture
11-02 05:40 80m -10 / - AB4SF - / - 2 Partial capture
11-02 05:38 80m -6 / - LZ911TD - / -10 2 Partial capture
11-02 05:37 80m -8 / - W2ARX - / - 2 Partial capture
11-01 08:09 40m -20 / -10 DD3ZZ -8 / - 5 ✓ Closing observed
11-01 06:37 80m -20 / - F8CFO -6 / +7 4 ✓ Closing observed
11-01 06:33 80m -18 / +1 DK1MAX +13 / +2 5 ✓ Full exchange observed
11-01 06:32 80m -16 / - F8CFO - / - 2 Partial capture
11-01 06:27 80m -14 / - WA4BRX - / -17 5 Partial capture
11-01 06:26 80m -12 / - F4NPE - / -4 2 ✓ Closing fragment
11-01 06:25 80m -15 / - M0MNV - / -3 3 ✓ Closing fragment
11-01 06:08 80m -8 / - KR4BQZ - / - 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
055200 -14 1187  N5RJR F4LZZ JN09 (x2)
055300 -10 1187  VE2VWY F4LZZ JN09
055330 -14 1187  XE1JVO F4LZZ JN09
055445 -16  859  WO2E F4LZZ JN09
055700 -13 1183  WV2M F4LZZ R-08 (x2)
055830  -9  899  ZL4AS F4LZZ JN09 (x4)
054200 -12 1792  K8SSN F4LZZ JN09
054245 -15  654  EI2IXB F4LZZ JN09
054315 -14  654  AD5YB F4LZZ JN09
070145 -16 2117  N1KI F4LZZ JN09
80m
UTC    dB Audio  Message
201700 -15  264  JA5AUC F4LZZ JN09
201830 -14  846  JA6LCJ F4LZZ JN09 (x2)
201930 -15  846  JA5XAE F4LZZ JN09
202230 -20  825  JA5BZL F4LZZ JN09 (x2)
202700 -18  825  BA4RF F4LZZ JN09
202730 -18  825  JR1AIB F4LZZ JN09
202830 -14  825  BA4RF F4LZZ JN09 (x3)
203130 -11 2853  JA5BZL F4LZZ JN09
053900  -9 1756  W9JOY F4LZZ JN09
053930 -20 1756  KI5QQG F4LZZ JN09 (x2)
160m
UTC    dB Audio  Message
192945  -1  607  F4LZZ SP9DGO -22 (x3)
193445  +6 1202  F4LZZ SQ6WA -24 (x6)
194115  +1 1502  F4LZZ DG5MEX -18 (x2)
053830  -8 1481  F4LZZ SM5CBM -14 (x3)
053515  -5 2308  F4LZZ DK8ZZ -04
10m
UTC    dB Audio  Message
081830 -14 2507  E21AZ F4LZZ JN09
081945 -19 1331  US6EX F4LZZ JN09
082200 -20 1331  YD0ATZ F4LZZ JN09 (x3)
100630 -12  845  VU2MSA F4LZZ JN09 (x2)
085715  -2 1027  F4LZZ UA9MA -12 (x2)
132330 -15  775  K3MEC F4LZZ JN09
125800  -9  712  F4LZZ T77BL RR73
082500  -7  905  F4LZZ RW3AUK -13 (x2)
082630 -24 1677  F4LZZ UA3FO KO94 (x2)
60m
UTC    dB Audio  Message
191715 -15 2176  DL1YFS F4LZZ 73
191730  +9 2664  F4LZZ LZ2VQ KN23
191830 -14 2142  F4LZZ ON4MHZ JN29 (x2)
192830  -4  718  F4LZZ GI8RPM -17
065745 -14  759  F4LZZ <...> -02 (x2)
190745 -23 2117  WE9G F4LZZ JN09
070645 -22 1560  F4LZZ DL9NN R+02
070745  -4  479  F4LZZ DL3HBF R-07
070745 -12  908  F4LZZ DH9DR JO31
070815  +2  479  F4LZZ DL3HBF 73
070815  -8  908  F4LZZ DH9DR JO31 (x2)
071030 -13  612  F4LZZ G0JDK RR73
20m
UTC    dB Audio  Message
065545  -9 2909  VK3FWR F4LZZ JN09 (x3)
073330  +1 2432  TC30AGU F4LZZ JN09 (x3)
073500  +1 2533  <...> F4LZZ JN09 (x2)
073630  -9 1991  II7MGXX F4LZZ JN09 (x2)
073730  -6 2035  <...> F4LZZ JN09 (x2)
073930  -4 2000  VK2YE F4LZZ JN09
074000  -3 2000  II7MGXX F4LZZ JN09
142715  +1 1810  RK1AA F4LZZ JN09

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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