IQ0OS — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

7,473 messages

Active dates

27 UTC dates

Estimated median S/N

-8 dB

Estimated 10th-90th percentile

-16 to +3 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1,004, moderate (-15 to -9 dB) 2,456, strong (≥ -8 dB) 4,013.

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 IQ0OS 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 IQ0OS

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 · 3,689 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,158 km (approx.)

Last such locator decoded

2026-09-04 20:15 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
210445  -9 2542  IQ0OS IZ4PKC JN54 (x2)
212400 -15  920  CQ IQ0OS JN61                         a1
213345 -22 1856  IQ0OS EA3AKA R-02
214115 -17 1638  IQ0OS ER1CW R-10 (x2)
215215 -15 1532  IQ0OS UR5TOC -01 (x2)
230430 -19 1091  HI8UD IQ0OS JN61 (x2)
023230 -20 1756  IQ0OS OS4K +08
201445  +6  433  RI1FJL IQ0OS JN61 (x4)

UTC    dB Audio  Message
214100 -20 1496  KC1WAY IQ0OS R-11 (x4)
214400 -19 1496  CQ IQ0OS JN61
220245 -20 1127  IQ0OS YO3WST KN34 (x2)
103215 -12  845  HI8UD IQ0OS R-19
103345 -14  845  PD2WL IQ0OS -14
103400  -7 1325  IQ0OS PD2WL R-03 (x2)
041800  -8  711  HI8UD IQ0OS 73
041845 -14  737  IQ0OS IZ8VYU JN71
083130 -21 1908  HI8UD IQ0OS JN61 (x2)

UTC    dB Audio  Message
195245  +2 1065  IQ0OS IW6MXV JN72
195245  -8 2301  IQ0OS IT9FEG JM77
195300  -1  841  CQ IQ0OS JN61
195315  -6  789  IQ0OS S57AJ JN76
195315 -15 1566  IQ0OS ON6CQ JO11
195315  +5 1065  IQ0OS IW6MXV JN72
195315  -5  841  IQ0OS IT9FEG JM77
195330  +2  841  CQ IQ0OS JN61
195345  -6  789  IQ0OS S57AJ JN76
195345 -21 1566  IQ0OS ON6CQ JO11
195345  +5  839  IQ0OS IW6MXV JN72 (x2)
195445 -10  892  IQ0OS S57AJ JN76 (x3)

UTC    dB Audio  Message
163430 -11  528  DL3MML IQ0OS RR73
163445  -4  529  IQ0OS DL3MML 73
171600 -11  469  CQ IQ0OS JN61
172045 -13 1068  IQ0OS EU6AV R-13 (x2)
172400 -22 2114  DK7CVD IQ0OS -05
172730 -21 2115  CQ IQ0OS JN61 (x3)
173130 -16 2424  OH8KTX IQ0OS RR73
175100 -16  989  IQ0OS DG1KFR JO33 (x4)
181115 -22 2177  CQ IQ0OS JN61

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.