IU0WSR — reception at SO8OO

Observed FT8 message patterns

Attributed sample

168 messages

Active dates

5 UTC dates

Estimated median S/N

-12 dB

Estimated 10th-90th percentile

-19 to -4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 68, strong (≥ -8 dB) 52.

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 IU0WSR 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 IU0WSR

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

JN61 · 91 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,158 km (approx.)

Last such locator decoded

2026-11-05 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
183230  -4  946  E70SZ IU0WSR 73
185600  -3 2162  4Z5AV IU0WSR JN61 (x2)
192145  -8 1466  EX7DY IU0WSR JN61 (x4)
192845  -6 2634  JA9BFN IU0WSR JN61 (x5)
193215  -3 2627  R9FE IU0WSR JN61 (x2)
193545 +12 2201  IU0WSR OM2WQ RRR

UTC    dB Audio  Message
164930  +0 1477  IU0WSR S57MPU +18
164945 -13 1281  S57MPU IU0WSR R-07
165000  +1 1477  IU0WSR S57MPU RR73
165015 -14 1281  S57MPU IU0WSR 73
165030  +3 1477  IU0WSR S57MPU 73
165030  -2 1281  IU0WSR DK3JW JN67 (x2)
165115 -14 1281  DK3JW IU0WSR +00
165130  -2 1281  IU0WSR DK3JW R+02
165145  -7 1153  DK3JW IU0WSR RR73
165200  +0 1281  IU0WSR DK3JW 73
165330 -22 1570  IU0WSR DK9FE JO40 (x2)
183500 -10 2105  LA1PHA IU0WSR JN61 (x2)

UTC    dB Audio  Message
213500 -19 1997  OR40EUDXF IU0WSR JN61
213800 -15 1998  MI7XHT IU0WSR R-18
214200 -14 2382  SP6FME IU0WSR -09
214245 -17 2105  IU0WSR IU4PPL R+15 (x2)
214615 -22 2261  5B4AMX IU0WSR JN61
214730  -2 2221  IU0WSR F5PBG IN78 (x3)
171615  -1  872  IU0WSR IN3JRZ JN56
171800 -17 1382  IN3JRZ IU0WSR -17
171815  -6 1682  IU0WSR IN3JRZ R-16 (x2)
172100 -18 2181  E71MK IU0WSR JN61 (x2)

UTC    dB Audio  Message
205645 -20 2655  IU0WSR I8OHQ -25

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.