IZ3ATX — reception at SO8OO

Observed FT8 message patterns

Attributed sample

195 messages

Active dates

8 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) 5, moderate (-15 to -9 dB) 31, strong (≥ -8 dB) 159.

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 IZ3ATX 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 IZ3ATX

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

JN55 · 151 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

945 km (approx.)

Last such locator decoded

2026-10-07 05:33 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
163830  -4  660  VK4TF IZ3ATX JN55 (x4)
164130 -17 2093  CQ DX IZ3ATX JN55 (x3)
053245  -2 2551  N0BUZ IZ3ATX JN55 (x2)
053330  -8 2506  IZ3ATX N0BUZ -15
053345  +0 2550  N0BUZ IZ3ATX R-07
053400  -9 2507  IZ3ATX N0BUZ -15
053415  +3 2551  N0BUZ IZ3ATX R-08 (x3)

UTC    dB Audio  Message
142630 -13 2421  IZ3ATX S51PV JN76 (x2)
220330 -19 1980  IZ3ATX OS4K +13 (x2)
063215  -5 2346  KA9FOX IZ3ATX JN55 (x3)
185530  -6 2395  JA0LFV IZ3ATX JN55 (x3)
185700  +1 2395  BG2GWN IZ3ATX JN55 (x3)
161800  -7 2440  VJ6X IZ3ATX JN55 (x2)

UTC    dB Audio  Message
191100 -11 2415  CQ OC IZ3ATX JN55 (x4)

UTC    dB Audio  Message
190445 -12 1766  IZ3ATX OH1LA KP01
190445  -8  575  IZ3ATX G0AZH IO83
190445 +10  765  IZ3ATX DD6ZV JO62
190500  -3 2392  CQ OC IZ3ATX JN55
190515  -5 1892  IZ3ATX OH1LA KP01
190515  -7  576  IZ3ATX G0AZH IO83
190515  +7  765  IZ3ATX DD6ZV JO62
190545  -7 1892  IZ3ATX OH1LA KP01
190545  -6  576  IZ3ATX G0AZH IO83
190545  +7  765  IZ3ATX DD6ZV JO62
190615  -8  576  IZ3ATX G0AZH IO83
190615 +10  765  IZ3ATX DD6ZV JO62
190645  -8 1892  IZ3ATX OH1LA KP01
190645  -8  576  IZ3ATX G0AZH IO83
190645  +3  765  IZ3ATX DD6ZV JO62

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.