LY4A — reception at SO8OO

Observed FT8 message patterns

Attributed sample

391 messages

Active dates

6 UTC dates

Estimated median S/N

+7 dB

Estimated 10th-90th percentile

-5 to +15 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 22, strong (≥ -8 dB) 368.

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 LY4A 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 LY4A

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

KO15 · 365 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

624 km (approx.)

Last such locator decoded

2026-09-21 17:28 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
172145 +13 2840  KH8WW LY4A KO15 (x15)

UTC    dB Audio  Message
230300  +6 2202  LY4A DO9BAU JO62 (x8)
155315  +6 1559  KH8WW LY4A KO15 (x6)
155830 -10 1944  LY4A BAD SIGN

UTC    dB Audio  Message
212815 -24 1759  LY4A DN9CHV R+07
071630 -11  806  LY4A DH3MFW JN58
071845  -7 1941  LY4A IZ2CPP JN45 (x4)
072145  -7  810  LY4A DH3MFW JN58 (x2)
072745  -6 2228  LY4A DK8ZZ JO30 (x3)
075645 -19 2247  LY4A OT8T JO21
085500 -15 1940  LY4A IU4PPL JN54 (x3)

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.