DO9BLX — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

565 messages

Active dates

8 UTC dates

Estimated median S/N

+2 dB

Estimated 10th-90th percentile

-6.8 to +10 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 526.

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 DO9BLX 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 DO9BLX

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

JN49 · 277 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

920 km (approx.)

Last such locator decoded

2026-09-19 02:18 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
021230  +3  853  UA2FFD DO9BLX JN49
021315 +11  853  UT5ZC DO9BLX JN49
021415 +13  853  CQ DO9BLX JN49 (x2)
021500 -17  852  DO9BLX DO5PY JN49
021515 +11  853  DO5PY DO9BLX -07 (x2)
021615  +3  853  CQ DO9BLX JN49                        a1 (x3)
021800  -6  853  DL6LAY DO9BLX JN49
021815  -9 2298  DO9BLX DL6LAY -06
021830  -9  853  DL6LAY DO9BLX R-10
021845 -10 2298  DO9BLX DL6LAY RR73
021900  -9  853  DL6LAY DO9BLX 73

UTC    dB Audio  Message
010500 +11  847  HA7TM DO9BLX RR73
010515 +20  848  DO9BLX HA7TM 73
010530  +7  847  EC1AIJ DO9BLX R-15 (x3)
010700  +8  847  CQ DO9BLX JN49
010715 +12  847  DO9BLX US2YW KN28
010730 +11  847  US2YW DO9BLX -13
010745 +13  847  DO9BLX US2YW R-08
010800  +5  847  US2YW DO9BLX RR73
010815 +13  847  DO9BLX US2YW 73
010830  +9  847  9A4ZM DO9BLX -12
010845 +12  843  DO9BLX 9A4ZM R+07
010900 +14  847  9A4ZM DO9BLX RR73
010915  +6  843  DO9BLX 9A4ZM 73

UTC    dB Audio  Message
184915  -8 1338  DO9BLX DK7UY JO44 (x4)

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.