HA9OA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

2,145 messages

Active dates

44 UTC dates

Estimated median S/N

+5 dB

Estimated 10th-90th percentile

-3 to +17 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 27, strong (≥ -8 dB) 2,113.

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 HA9OA 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 HA9OA

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

KN08 · 1,740 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

170 km (approx.)

Last such locator decoded

2026-09-16 16:18 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
160930  -1 2987  II6IALU HA9OA KN08 (x13)
101500 -11  835  HA9OA SQ9SZ -04 (x2)

UTC    dB Audio  Message
011830 +18 2953  UN7CL HA9OA R-11 (x10)
012345 +15 2953  ON3ZEP HA9OA KN08 (x5)

UTC    dB Audio  Message
102830  -7 3027  HA9OA OK2PHI +17
102830 -20 2384  HA9OA OH5YL/P -11
102845 +10 3027  OH5YL/P HA9OA R-21
102900 -18 2383  HA9OA OH5YL/P RR73
102915 +13 3027  OH5YL/P HA9OA 73
102945  +5 3027  OK2PHI HA9OA R-05 (x3)
103400  -8 3028  HA9OA OK2PHI RR73
055545 -15 3167  HA9OA OA1F -14
091145  -5 3025  HA9OA R6FX LN14 (x3)
091315 -11 1896  HA9OA HB9ITZ -24 (x2)

UTC    dB Audio  Message
170200 -14 1800  HA9OA DG4SBZ RR73
085300  +4 3040  HA9OA F4VTR R-05
090830 -22 1356  HA9OA SV2TCC +02
091430  +1 1256  HA9OA LX1NO JN39 (x4)
091900 -15 2232  HA9OA EA3AKY JN01
091930 -17 2399  HA9OA DO9BAU JO62 (x7)

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.