YU3A — reception at SO8OO

Observed FT8 message patterns

Attributed sample

364 messages

Active dates

29 UTC dates

Estimated median S/N

-6.1 dB

Estimated 10th-90th percentile

-18 to +5 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 62, moderate (-15 to -9 dB) 95, strong (≥ -8 dB) 207.

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 YU3A 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 YU3A

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

JN95 · 198 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

536 km (approx.)

Last such locator decoded

2026-11-03 17:36 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
193845  -4 1003  XX9TXN YU3A JN95 (x2)
193930 +16  995  YU3A DO1DQ JO31
194615  +4 1003  XX9TXN YU3A JN95 (x10)
202400 +12 2051  D2UY YU3A RR73
202415  +2 2049  YU3A F5MXH JN07

UTC    dB Audio  Message
171645 -10 1340  KH8A YU3A JN95 (x15)

UTC    dB Audio  Message
124330 -22 1638  YU3A C5R R+07
131000  -9  742  YU3A TN8GD R+00 (x8)

UTC    dB Audio  Message
193900  +5 2378  YU3A R7ZY R-09 (x2)
194030  -4  983  YU3A GJ0KYZ -08
194030  -6  598  YU3A DK8HC 73
194100  +3  983  YU3A GJ0KYZ RR73
161515  -7 2738  KH8WW YU3A JN95 (x2)
202230 -15 2339  YU3A V51WH R-17
203300  -8 1032  YU3A MW7RHR IO73 (x4)
204700  -7  591  YU3A IT9LPO -13 (x2)
204900 -10  590  YU3A EA4IFO IN80

UTC    dB Audio  Message
201815  -1 1287  RO6OT YU3A -15
065230  -9 1841  YU3A 3A2MW R-11 (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.