DJ9MH — reception at SO8OO

Observed FT8 message patterns

Attributed sample

181 messages

Active dates

13 UTC dates

Estimated median S/N

-4 dB

Estimated 10th-90th percentile

-17 to +11 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 26, moderate (-15 to -9 dB) 40, strong (≥ -8 dB) 115.

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 DJ9MH 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 DJ9MH

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

JO50 · 91 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

770 km (approx.)

Last such locator decoded

2026-10-15 01:58 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
015545 +14 1037  Z61DX DJ9MH JO50
015600  -5 1037  DJ9MH DO8JB R-05
015615 +10 1767  Z61DX DJ9MH JO50
015630  -5 1037  DJ9MH DO8JB R-05
015645  +9 1767  Z61DX DJ9MH JO50
015700 -19 1637  DJ9MH ON1JP +04
015700  +1 1037  DJ9MH DO8JB R-05
015715 +11 1767  Z61DX DJ9MH JO50
015730  -8 1037  DJ9MH DO8JB R-05
015815  +6 1767  Z61DX DJ9MH JO50
015830  -9 1767  DJ9MH Z61DX +01
015830 -24 1638  DJ9MH ON1JP +04
015845  +8 1767  Z61DX DJ9MH R-20
015900  -7 1767  DJ9MH Z61DX RR73
015915  +5 1767  Z61DX DJ9MH 73

UTC    dB Audio  Message
110500  +2 2311  CQ DJ9MH JO50
110530  +1 2311  F1PBZ DJ9MH R+04 (x2)
110630  -1 2311  G5STU DJ9MH JO50
110730  -8 2311  S51PV DJ9MH -10 (x2)
110830  -1 2561  CQ DJ9MH JO50
140300  +8 2568  5Q1X DJ9MH JO50 (x6)
143245  +3  964  M9STN DJ9MH JO50 (x2)

UTC    dB Audio  Message
103430  -8 1402  YO4GIY DJ9MH R-13 (x3)
103700 -13 1402  SV2HTW DJ9MH JO50
103930 -21 1403  YO9ZIP DJ9MH JO50 (x2)
104030 -16 1403  MM7FTH DJ9MH JO50
105815 -23 1401  DJ3HW DJ9MH JO50
105915 -14 1401  CT2IGO DJ9MH R+18 (x2)
144915  -8 1613  <...> DJ9MH JO50 (x2)
145415  -6 2641  UR9QQ DJ9MH RR73
145445  -4 2640  DK9IP DJ9MH +02
145630  -6 2787  DJ9MH DL5EBS JO31

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.