IZ0HAM — reception at SO8OO

Observed FT8 message patterns

Attributed sample

221 messages

Active dates

19 UTC dates

Estimated median S/N

-2 dB

Estimated 10th-90th percentile

-15 to +6 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 21, strong (≥ -8 dB) 180.

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 IZ0HAM 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 IZ0HAM

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 · 130 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,158 km (approx.)

Last such locator decoded

2026-10-31 16:41 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
163500  -2 1579  CQ IZ0HAM JN61
163615  +0 1700  IZ0HAM DO9ST JO30
163630  +4 1579  R9LY IZ0HAM JN61
163645  -3 1700  IZ0HAM DO9ST JO30
163700  +2 1579  DO9ST IZ0HAM -18
163715  -3 1700  IZ0HAM DO9ST R+04
163730  +0 1579  DO9ST IZ0HAM RR73
163745  +3 1700  IZ0HAM DO9ST 73
163800  +3 1579  CQ IZ0HAM JN61
163830  +1 1579  YU7AS IZ0HAM JN61
163845  +8 1902  IZ0HAM YU7AS +07
163900  +0 1579  YU7AS IZ0HAM R-02
163915 +12 1902  IZ0HAM YU7AS RRR
163930  -2 1579  YU7AS IZ0HAM 73
164100  -2 1580  R9LY IZ0HAM JN61

UTC    dB Audio  Message
203245 -18 1614  OH0ERF IZ0HAM JN61
221315 -23 1612  VJ6X IZ0HAM JN61 (x5)
221645 -18 1612  <...> IZ0HAM JN61 (x4)
205630 -11 1717  IZ0HAM EX7CQ -11 (x2)

UTC    dB Audio  Message
062845  -6 1655  IZ0HAM DG5PW JO30
143200 -12 1651  IZ0HAM PA2AMJ -07
143215 -21 1650  PA2AMJ IZ0HAM R-03 (x2)
133415 -22 1651  CQ IZ0HAM JN61                        a1
133715 -14 1652  BA3NZ IZ0HAM JN61
133815 -14 1652  EU2Q IZ0HAM R-07 (x2)
170330  -9 1513  IZ0HAM EX7DY RR73
170430 -17 2247  IZ0HAM UN8DAW -05
205215 -12 1648  HS0ZOY IZ0HAM JN61
205230  +2 2478  IZ0HAM HS0ZOY -12
205245 -14 1649  HS0ZOY IZ0HAM R-22
205300  +4 2477  IZ0HAM HS0ZOY RR73
074200 -12 2831  IZ0HAM RD3FY 73

UTC    dB Audio  Message
135045 -14 1661  5A1AL IZ0HAM 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.