OH4SS — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

797 messages

Active dates

24 UTC dates

Estimated median S/N

+2.1 dB

Estimated 10th-90th percentile

-11 to +11 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 28, moderate (-15 to -9 dB) 95, strong (≥ -8 dB) 674.

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 OH4SS 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 OH4SS

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

KP21 · 473 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,301 km (approx.)

Last such locator decoded

2026-09-19 16:24 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
155845  -2 2460  EX7CQ OH4SS KP21 (x3)
160000 -22 1691  OH4SS EX7CQ RR73
160015  -1 2460  EX7CQ OH4SS 73
160845  -3 2529  YC9HJD OH4SS KP21 (x2)
161745  +0 2370  YE4FNN OH4SS KP21 (x8)

UTC    dB Audio  Message
035315  -4  356  VP2MAA OH4SS KP21 (x15)

UTC    dB Audio  Message
165000  -5 1745  OH4SS RY3F RR73
165015  +3 1746  RY3F OH4SS 73
165030 -22 1909  OH4SS RD4AAK -03
165045  +5 2237  RD4AAK OH4SS R-06
165100 -19 1909  OH4SS RD4AAK RR73
165115 +12 2237  RD4AAK OH4SS 73
165715  +9 2694  KH8WW OH4SS KP21 (x9)

UTC    dB Audio  Message
012330 -13 2283  OH4SS YO4NF -16 (x2)
050815  -4 2416  OH4SS R6FX LN14 (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.