JA0DBQ — reception at SO8OO

Observed FT8 message patterns

Attributed sample

17 messages

Active dates

7 UTC dates

Estimated median S/N

-17 dB

S/N percentile sample

Too small

Recurring-pattern threshold

Not met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 1.

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 JA0DBQ 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 JA0DBQ

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

PM95 · 13 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

8,693 km (approx.)

Last such locator decoded

2026-11-02 20:05 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
155700 -10 2175  JA0DBQ RL9F R-14
155700 +16 2745  JA0DBQ RC3D -22
155700  +8 2646  JA0DBQ HA8CE KN06
155730 -10 2175  JA0DBQ RL9F R-23
155730 +20 2745  JA0DBQ RC3D -22
155800 -11 2174  JA0DBQ RL9F R-23
155800 +18 2745  JA0DBQ RC3D -22
155830  -8 2175  JA0DBQ RL9F 73
155830 +15 2745  JA0DBQ RC3D -22 (x3)
200330 -17 2367  I1RJP JA0DBQ PM95 (x3)
201645  -3 1437  JA0DBQ SP5OXJ KO02

UTC    dB Audio  Message
181845  -4  993  JA0DBQ PI4DX -13 (x2)
192730 -20 1717  JA0DBQ EX7CQ -12

UTC    dB Audio  Message
195415 -11 2390  JA0DBQ F4NGC IN95 (x5)
201600 -20 2017  JA0DBQ 9K2GR RR73
132845 -24 1634  EW2ZC JA0DBQ R+07 (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.