IZ0BVU — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,303 messages

Active dates

28 UTC dates

Estimated median S/N

-1 dB

Estimated 10th-90th percentile

-11 to +9 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 48, moderate (-15 to -9 dB) 173, strong (≥ -8 dB) 1,082.

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 IZ0BVU 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 IZ0BVU

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

JN63 · 821 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

979 km (approx.)

Last such locator decoded

2026-09-20 20:20 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
213300 -16 1014  IZ0BVU UA9SY -15
213315  -3 1013  UA9SY IZ0BVU R-09
213330 -12 1014  IZ0BVU UA9SY -15
213415  +7 1013  UA9SY IZ0BVU R-15 (x3)
201930  +6 2465  EA2DYB IZ0BVU JN63 (x2)
202015  -3 2465  IZ0BVU EA2DYB +02
202030  +7 2465  EA2DYB IZ0BVU JN63
202045  -5 2465  IZ0BVU EA2DYB +03
202100  +8 2465  EA2DYB IZ0BVU R+03
202115  -5 2465  IZ0BVU EA2DYB RR73
202130  +5 2465  EA2DYB IZ0BVU R+03
202145  -4 2465  IZ0BVU EA2DYB RR73

UTC    dB Audio  Message
041915 -22 1812  IZ0BVU GM6URC -13 (x2)
042000  +5 1958  GM6URC IZ0BVU 73
042100  +6 1958  HK3YL IZ0BVU JN63 (x2)
042400  +5 1968  HK3W IZ0BVU JN63 (x2)
042615  -5 1968  F4NEM/P IZ0BVU JN63
042645 +18 2903  UB8CQC/P IZ0BVU JN63
184715  -3 2688  9H4JX IZ0BVU 73
200630 -14 1400  IZ0BVU PD4RJ -06 (x5)

UTC    dB Audio  Message
010430  -4 2098  RA8AO IZ0BVU JN63 (x6)
010715 -17 1223  IZ0BVU RA8AO RRR
213930 -15 1156  IZ0BVU RI1FJZ -17 (x2)
214145  -1 2410  RI1FJZ IZ0BVU R-10 (x2)
214400 -18 1156  IZ0BVU RI1FJZ -11
214415  -8 1496  RI1FJZ IZ0BVU R-14
214430 -16 1156  IZ0BVU RI1FJZ RR73
214445  -2 1496  RI1FJZ IZ0BVU 73

UTC    dB Audio  Message
014330  -7  469  AC2MW IZ0BVU JN63 (x3)
014730 -10  469  KF0MSJ IZ0BVU JN63
174915  +8 2244  K1WY IZ0BVU JN63 (x5)
175315  -1 1681  N1HMT IZ0BVU JN63 (x2)
191415  +7 1225  K2TQC IZ0BVU JN63 (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.