4L1FL — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

2,930 messages

Active dates

66 UTC dates

Estimated median S/N

-1 dB

Estimated 10th-90th percentile

-12 to +9.5 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 141, moderate (-15 to -9 dB) 462, strong (≥ -8 dB) 2,327.

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 4L1FL 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 4L1FL

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

LN21 · 1,484 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,020 km (approx.)

Last such locator decoded

2026-09-17 02:45 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.

Recent FT8 messages decoded at SO8OO

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

UTC    dB Audio  Message
023115 -11 2509  4L1FL F1NNI IN88 (x2)
023145  +3  506  4L1FL DO1OAS JO51 (x2)
023245 -14 2509  4L1FL F1NNI IN88
023245  +0  505  4L1FL DO1OAS JO51 (x7)
035615 +27  462  4L1FL UR5SW KN28 (x3)

UTC    dB Audio  Message
041000  +0  834  CQ 4L1FL LN21 (x2)
041045 -10  896  4L1FL SV1MOZ KM17
041100  -9 1137  OK1AMF 4L1FL -02
041115  -8  896  4L1FL SV1MOZ KM17
041130  -2 1138  OK1AMF 4L1FL RR73
041245 -11  896  4L1FL SV1MOZ KM17
024200  -6  535  CQ 4L1FL LN21 (x4)
024400 -11 1140  R7OI 4L1FL -07
024430 -12 1140  CQ 4L1FL LN21                         a1 (x2)
024530 -19 1139  R7OI 4L1FL RR73

UTC    dB Audio  Message
012815 -10  735  4L1FL EA3EDU JN01
024145  -9  497  CQ 4L1FL LN21                         a1 (x5)
023315 +11 1296  4L1FL IK4ADE JN54
023330  -7  500  CQ 4L1FL LN21
023345  +9 1296  4L1FL IK4ADE JN54
023430  -5  499  CQ 4L1FL LN21 (x4)
023745 -17 1586  4L1FL R2GCV KO92 (x2)

UTC    dB Audio  Message
022245 -20 1938  4L1FL K4AG EL95
024345  +4  531  CQ 4L1FL LN21 (x2)
024445  +3  401  SP5JMA 4L1FL -01 (x2)
024715  -2  955  SP7ICE 4L1FL -10 (x2)
024845  +9  563  CQ 4L1FL LN21
024900 -13 1218  4L1FL EA1FKI -04
024915  -1 1220  EA1FKI 4L1FL R-14 (x2)
025045  +4  534  CQ 4L1FL LN21 (x2)
025145  -7 1536  ER3ZW 4L1FL R-02 (x2)

UTC    dB Audio  Message
043700  -6  564  CQ 4L1FL LN21
043715  -5 1272  4L1FL RG6S KN77 (x4)
044000  +6  564  CQ 4L1FL LN21 (x2)
044345 -11  565  4L1FL ZL2TAZ RE43
044430  +1  564  CQ 4L1FL LN21 (x5)
130615  -7  823  4L1FL RA9AMO -08 (x2)

UTC    dB Audio  Message
055730  -4  568  4L1FL RM6OB KN87 (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.