9A9TJ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

1,653 messages

Active dates

13 UTC dates

Estimated median S/N

-1 dB

Estimated 10th-90th percentile

-9 to +8.9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, moderate (-15 to -9 dB) 155, strong (≥ -8 dB) 1,472.

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 9A9TJ 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 9A9TJ

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

JN86 · 864 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

521 km (approx.)

Last such locator decoded

2026-09-23 17:52 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
175230  -2 2535  9A9TJ SP8V KO10 (x4)

UTC    dB Audio  Message
174715 -15 1934  CQ 9A9TJ JN86
174730  -7  726  9A9TJ OZ1SMB JO54 (x2)
174800 -18 1935  9A9TJ LY2XJ KO14
174815 -10 1934  CQ 9A9TJ JN86 (x2)
174900  -4 1266  9A9TJ RX3ASQ KO95
174915 -15 1934  CQ 9A9TJ JN86
174930  -6 1266  9A9TJ RX3ASQ KO95
174945  -5 1934  CQ 9A9TJ JN86
175000  -7 1933  9A9TJ DL7UKM JO62
175015 -13 1934  CQ 9A9TJ JN86
175030  -4 1933  9A9TJ DL7UKM JO62
175045 -14 1934  CQ 9A9TJ JN86 (x2)

UTC    dB Audio  Message
180830  +4 1907  DL7UKM 9A9TJ -19
180845  -9 1481  9A9TJ RD7O KN98
180845 -12 1907  9A9TJ DL7UKM JO62
180900  +5 1907  DL7UKM 9A9TJ -19
180915  -1 1481  9A9TJ RD7O KN98
180915 -15 1906  9A9TJ DL7UKM JO62
180945  -9 1481  9A9TJ RD7O KN98
181000  -3 1907  DL7UKM 9A9TJ -19
181015  -9 1481  9A9TJ RD7O KN98
181030  +1 1907  DL7UKM 9A9TJ -19
181045  -9 1481  9A9TJ RD7O KN98
181100  -7 1907  DL7UKM 9A9TJ -19
181115 -13 1481  9A9TJ RD7O KN98 (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.