IU8FRE — reception at SO8OO

Observed FT8 message patterns

Attributed sample

337 messages

Active dates

19 UTC dates

Estimated median S/N

-1 dB

Estimated 10th-90th percentile

-10 to +9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 41, strong (≥ -8 dB) 289.

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 IU8FRE 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 IU8FRE

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

JN70 · 188 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,175 km (approx.)

Last such locator decoded

2026-10-30 18:07 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
202715  +7  681  RI1FJL IU8FRE JN70 (x11)
180630  -2  663  H44MS IU8FRE JN70 (x4)

UTC    dB Audio  Message
232945  -2 1441  IU8FRE EW8DU KO52 (x2)
193745  -8 1442  V51WH IU8FRE JN70 (x2)
004800  -6 2227  IZ8XXE IU8FRE JN70
004815  -4 2227  IU8FRE IZ8XXE +16
004830  -4 2227  IZ8XXE IU8FRE R+17
004845  -1 2227  IU8FRE IZ8XXE RR73
004900  -3 2227  IZ8XXE IU8FRE 73
004915 +12  669  IU8FRE R2AL KO85 (x2)
005000  -4 2227  R2AL IU8FRE -01
005015 +11  669  IU8FRE R2AL R-09
005030  -9 2227  R2AL IU8FRE RR73
005045 +13  669  IU8FRE R2AL 73

UTC    dB Audio  Message
110415  -5  444  RI1FJL IU8FRE JN70 (x3)
110600 -10 2013  IU8FRE DN9SGE JO42 (x3)
110745  +2  505  RI1FJL IU8FRE JN70 (x9)

UTC    dB Audio  Message
205100 +12  717  IU8FRE F4ACR IN96 (x3)

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.