SQ7JM — reception at SO8OO

Observed FT8 message patterns

Attributed sample

43 messages

Active dates

3 UTC dates

Estimated median S/N

-20 dB

Estimated 10th-90th percentile

-22 to -16 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 39, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.

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 SQ7JM 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 SQ7JM

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

JO91 · 29 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

262 km (approx.)

Last such locator decoded

2026-11-03 19:32 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
193730  -1  741  SQ7JM DL6UM JO60
193800 -21  203  SQ7JM DL3JHK 73
193900  +4  203  SQ7JM S50XX JN65
193900 -15 1671  SQ7JM DO7MEW JO42
193930  +2  203  SQ7JM S50XX JN65 (x9)
194430  -8 1904  SQ7JM DK3TNA JO62 (x2)

UTC    dB Audio  Message
185330 -14 1283  SQ7JM EA1EYL IN81
185400  -9  241  SQ7JM M7MJW 73
185400  -2 1171  SQ7JM IK4TVP -04
185400 -14 1283  SQ7JM EA1EYL IN81
185430  +0 1171  SQ7JM IK4TVP -04
185430  +0 2685  SQ7JM G4DBW JO01
185800  +1  754  SQ7JM IK2SND JN45 (x2)
185900  -8  242  SQ7JM IZ0ZIP RR73
185900 +14  754  SQ7JM IK2SND JN45 (x2)
190430  -3 2685  SQ7JM G4DBW JO01 (x2)
190530  -9  499  SQ7JM DL1BBO JO43 (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.