OH5Z — reception at SO8OO

Observed FT8 message patterns

Attributed sample

266 messages

Active dates

13 UTC dates

Estimated median S/N

+5.5 dB

Estimated 10th-90th percentile

-4 to +12 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 252.

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 OH5Z 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 OH5Z

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

KP30 · 107 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,219 km (approx.)

Last such locator decoded

2026-10-28 15:58 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
214030 +11 1856  S79VU OH5Z KP30 (x5)
155015  -2 2302  AP2HA OH5Z KP30 (x5)
155230  +2 2302  OH5Z UA4FKT LO23
155245  +0 2302  AP2HA OH5Z 73
155845  -5 2002  XX9TXN OH5Z KP30 (x3)

UTC    dB Audio  Message
231545 +11 1856  7P8GE OH5Z R-16 (x2)
171545  +1  401  XX9TXN OH5Z KP30 (x13)

UTC    dB Audio  Message
200015  -3 2382  9T0MD OH5Z KP30 (x14)

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.