OK1USU — reception at SO8OO

Observed FT8 message patterns

Attributed sample

133 messages

Active dates

13 UTC dates

Estimated median S/N

-6 dB

Estimated 10th-90th percentile

-13 to +9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 89.

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 OK1USU 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 OK1USU

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

JN79 · 65 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

491 km (approx.)

Last such locator decoded

2026-10-20 14:59 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
175445 -20 1540  OK1USU ON8SL JN29
165815  -2 1002  PD3JB OK1USU JN79
165830  +3 1002  OK1USU DA1MON JO62
165845  -7 1002  DA1MON OK1USU -05
165900  -6 1002  OK1USU DA1MON R-11
165915  -8 1002  DA1MON OK1USU RRR
165930  -1 1002  OK1USU DA1MON 73
165945  -5 1002  DA1MON OK1USU RRR
170000 -13 1002  OK1USU PD3JB -09
170015  -3 1002  DA1MON OK1USU RRR
170030 -17 1002  OK1USU PD3JB -09
170045  -2 1001  PD3JB OK1USU R-18
170100 -11 1002  OK1USU PD3JB RR73
145845  -2 2833  RD9T OK1USU JN79 (x2)

UTC    dB Audio  Message
120015 -16 1511  OK1USU CT7AUT R+00 (x2)

UTC    dB Audio  Message
193500  +7 2465  F8GAF OK1USU JN79 (x2)
193800  +5  857  TA3GO OK1USU JN79
193815  -8  857  OK1USU TA3GO -18
193830 +19  857  TA3GO OK1USU JN79 (x2)
193945 -11  856  OK1USU TA3GO -15
194000 +12  857  TA3GO OK1USU R-19
194015 -10  856  OK1USU TA3GO RR73
194030 +11  856  TA3GO OK1USU 73
194045  +4  381  OK1USU DO1ID +08 (x2)
194130 +22  381  DO1ID OK1USU R+17
194145 +12  382  OK1USU DO1ID RR73
194200 +22  381  DO1ID OK1USU 73

UTC    dB Audio  Message
200945  -6 2927  OH5YL OK1USU JN79 (x3)
095200 -17 1013  OK1USU IU5OMW -02
165515 -19 1520  LY3PW OK1USU 73
180945  +4  812  G0OYR OK1USU JN79
182600 -10 1577  OK1USU SV1EAG -05
183000 +20 2909  OK1USU G0VXE -01 (x2)
183300 -15 2274  OK1USU BG7BMG -14 (x2)
151630  -5  713  OK1USU PD1DRE -04 (x2)
141315 -17 1296  OK1USU G4YLJ -02 (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.