SQ9V — reception at SO8OO

Observed FT8 message patterns

Attributed sample

253 messages

Active dates

9 UTC dates

Estimated median S/N

+14 dB

Estimated 10th-90th percentile

-3 to +19 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 6, strong (≥ -8 dB) 247.

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 SQ9V 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 SQ9V

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

JO90 · 201 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

208 km (approx.)

Last such locator decoded

2026-10-14 18:13 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
202745  +8 1881  9T0MD SQ9V JO90 (x3)
180815 -11 2585  CQ SQ9V JO90                          a1 (x2)
180915  -7 2585  IT9SVJ SQ9V -13 (x2)
181015  -6 2586  CQ SQ9V JO90 (x2)
181100  -4 2585  SQ9V LY2EW KO25
181115  -8 2586  LY2EW SQ9V -01
181130  +0 2586  SQ9V LY2EW R+07 (x2)
181245  -7 2586  CQ SQ9V JO90 (x2)

UTC    dB Audio  Message
184445  -2 2121  RI1FJZ SQ9V JO90
184845  -1 2531  9K2HS SQ9V JO90
184915  +8 2531  V51WH SQ9V JO90 (x2)
204315 +18 2693  RI1FJZ SQ9V JO90 (x10)
204515 -11 1601  9T0MD SQ9V JO90

UTC    dB Audio  Message
181215 +20 2418  OZ2LP SQ9V -14 (x2)
181330 -15 2417  SQ9V IU3RRX JN55 (x3)
184815 +12 2417  RI1FJZ SQ9V JO90 (x4)
192000 +24 2697  OD5XX SQ9V JO90 (x2)
192200 +24 2697  4X1UF SQ9V JO90 (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.