F4FLF — 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: JN18

Receiver-side FT8 activity involving F4FLF, decoded by SO8OO in southeastern Poland. 4,423 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, 10m, across 27 UTC dates in the available aggregate history. Observed between 2026-06-06 and 2026-10-18.

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 4,423 FT8 messages attributed to F4FLF as the transmitting token by decoded message structure across 27 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (57%), followed by 20 m (25%) and 10 m (11%). The busiest six-hour window was 21:00-03:00 UTC, containing 48% of decodes. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (73%); the estimated median was -2.6 dB.

Overview

4,423
Messages attributed
27
UTC dates decoded
502
Active 15-min windows
-2.6 dB
Estimated median S/N

Bands

First attributed message: 2026-06-06
Last attributed message: 2026-10-18 13:41 UTC

Observed FT8 message patterns

Attributed sample
4,423 messages
Active dates
27 UTC dates
Estimated median S/N
-2.6 dB
Estimated 10th-90th percentile
-15.2 to +8 dB
Recurring-pattern threshold
Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 435, moderate (-15 to -9 dB) 757, strong (≥ -8 dB) 3,231.

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 F4FLF

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
JN18 · 3,101 decoded messages
SO8OO receiver locator
KN09VW
Locator-centre separation
1,370 km (approx.)
Last such locator decoded
2026-10-18 13:41 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 UTCBandF4FLF S/NCounterpartCounterpart S/NMsgsCapture
10-18 13:37 10m -16 / - YV5GJC - / - 3 Partial capture
10-18 13:06 10m -10 / - KD2ERN - / - 3 Partial capture
10-18 12:51 10m -18 / - PP1AY - / - 2 Partial capture
10-18 12:41 10m -17 / - OK4KD -19 / -14 2 ✓ Closing observed
10-18 06:28 40m -4 / - NE2E - / -7 2 Partial capture
10-18 06:09 40m 0 / - KB2PVC - / -20 3 Partial capture
10-18 06:02 40m -7 / - AH6FX - / - 5 Partial capture
10-18 05:46 40m -7 / - YV5KG - / - 4 Partial capture
10-18 05:35 40m -10 / - KJ5ROO - / -24 7 ✓ Closing fragment
10-18 05:32 40m -5 / - AH6FX - / - 4 Partial capture
10-18 05:20 40m -13 / - KF8ENC - / -15 8 ✓ Closing fragment
10-18 05:16 40m +2 / - W3WCT - / - 5 Partial capture
10-18 05:12 40m 0 / - W1CR - / - 4 Partial capture
10-18 05:02 40m -12 / - KB5YNF - / - 3 Partial capture
10-18 04:47 40m -21 / - YV5YDT - / - 2 Partial capture
10-18 04:44 40m -7 / - C5R - / - 5 Partial capture
10-18 04:40 40m +3 / - K9RRW - / -22 5 ✓ Closing fragment
10-18 04:38 40m -9 / - WB0WQS - / - 3 Partial capture
10-18 04:35 40m +1 / - AJ5CI - / - 5 Partial capture
10-18 04:34 40m -2 / - YV5YDT - / - 2 Partial capture
10-18 04:29 40m +1 / - W5TVC - / -22 3 ✓ Closing fragment
10-18 04:21 40m -1 / - K5RJM - / - 5 Partial capture
10-18 04:16 40m -14 / - W1KFR - / -20 3 ✓ Closing fragment
10-18 04:15 40m -20 / - YV5YDT - / - 2 Partial capture
10-18 04:10 40m 0 / - KN4WJY - / -5 4 ✓ Closing fragment
10-18 04:06 40m +6 / - RT8T - / -15 8 Partial capture
10-18 04:01 40m -18 / - K5MGY - / -17 4 Partial capture
10-18 03:55 40m +1 / - KC4YAO - / -17 3 ✓ Closing fragment
10-18 03:53 40m -8 / - KJ5ORI - / - 3 Partial capture
10-18 03:51 40m -2 / - KC0THF - / - 2 Partial capture
10-18 03:46 40m -7 / - VE2AHG - / - 5 Partial capture
10-18 03:44 40m +2 / - WW3QB - / -20 3 ✓ Closing fragment
10-18 03:42 40m 0 / - WB2MLY - / - 4 Partial capture
10-18 03:35 40m +6 / - N4RDX - / - 5 Partial capture
10-18 03:31 40m -2 / - KC9VFR - / -21 7 Partial capture
10-18 03:29 40m -3 / - KJ5ORI - / - 2 Partial capture
10-18 03:28 40m 0 / - NE1B - / - 2 Partial capture
10-18 03:26 40m +1 / - N4AVJ - / -17 3 ✓ Closing fragment
10-18 03:25 40m -1 / - W8SFN - / -5 3 ✓ Closing fragment
10-18 03:20 40m 0 / - HK3G - / - 6 Partial capture
10-18 03:14 40m 0 / - KE5OSV - / -15 8 Partial capture
10-18 03:09 40m +3 / - NC4HH - / - 4 Partial capture
10-18 03:05 40m +12 / - W8SSM - / - 6 Partial capture
10-18 03:02 40m +4 / - W4J - / - 5 Partial capture
10-18 03:00 40m +12 / - W8SSM - / - 3 Partial capture
10-18 02:57 40m +2 / - KU4GA - / - 2 Partial capture
10-18 02:54 40m +11 / - W8SSM - / - 5 Partial capture
10-18 02:51 40m +14 / - W4DAF - / - 5 Partial capture
10-18 02:47 40m +12 / - K4OTT - / - 6 Partial capture
10-18 02:44 40m +10 / - W8NET - / - 5 Partial capture

Recent FT8 messages decoded at SO8OO

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

10m
UTC    dB Audio  Message
125115 -17 1045  PP1AY F4FLF JN18 (x2)
125315 -24 1670  US8KA F4FLF JN18
130030  -7  722  KD2ERN F4FLF JN18
130215 -14 2305  YC1SEO F4FLF JN18
130400 -20 1997  N5CDL F4FLF JN18
130630  -8  723  KD2ERN F4FLF JN18 (x3)
131030 -21 1976  VE3TP F4FLF JN18
133615 -23 1855  PY3BTW F4FLF JN18
133730 -16  955  YV5GJC F4FLF JN18 (x3)
134145  -9  693  G0RVY F4FLF JN18
40m
UTC    dB Audio  Message
054630  -5 2655  YV5KG F4FLF JN18 (x4)
055100  -8 1256  K8JMH F4FLF JN18
060245 -11 1663  AH6FX F4FLF JN18 (x5)
060900  +0 2583  KB2PVC F4FLF JN18 (x3)
062845  -4  679  NE2E F4FLF JN18 (x2)
80m
UTC    dB Audio  Message
060615  -4 2247  W9KXI F4FLF JN18 (x4)
061200 -14 1613  PC4N F4FLF JN18 (x2)
062815 -12 1255  G4NVB F4FLF JN18 (x2)
065415 -19 2122  HB9NBN F4FLF R+01 (x5)
065745  -9 1005  OE5YCP F4FLF JN18
065800 -19 1005  F4FLF OE5YCP -14
20m
UTC    dB Audio  Message
160945 -17  993  F4FLF G4FAL -15

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