9A1UN — reception at SO8OO

Observed FT8 message patterns

Attributed sample

7 messages

Active dates

3 UTC dates

Estimated median S/N

+7 dB

S/N percentile sample

Too small

Recurring-pattern threshold

Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 7.

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. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with 9A1UN in decoded directed-looking exchanges:

Most frequent locator attributed to 9A1UN

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

JN65 · 4 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

821 km (approx.)

Last such locator decoded

2026-10-14 21:35 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
214215  -4 1487  9A1UN SV1DZB KM18
214215  -6 2982  9A1UN F4BYA JN19
214245  +1 1487  9A1UN SV1DZB KM18
214245 -11 2982  9A1UN F4BYA JN19
214315  -8 1487  9A1UN SV1DZB KM18

UTC    dB Audio  Message
234345 +15 2906  RI1FJL 9A1UN JN65 (x3)
234500  -1 2906  9A1UN EA1CQ IN83 (x2)
034345  +3 1002  KA1R 9A1UN 73
213400  +4 1002  VK6IR 9A1UN JN65 (x3)
213615  -5 1402  9A1UN SP7FSA KO01 (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.