IZ7QDZ — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

124 messages

Active dates

15 UTC dates

Estimated median S/N

-12 dB

Estimated 10th-90th percentile

-14 to -8 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 95, strong (≥ -8 dB) 21.

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 IZ7QDZ 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 IZ7QDZ

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

JN80 · 42 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,114 km (approx.)

Last such locator decoded

2026-09-19 16:04 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
143530  -8 1663  IZ7QDZ OK2PAK JN89
175500  -9 2156  IZ7QDZ S51PV JN76 (x5)
201030  -7  902  IZ7QDZ DH0GBC -10
163900  -7  997  IZ7QDZ II9IAGM -10
175700  +4 1139  IZ7QDZ IQ7AAV/P -14 (x2)
160445 -15  941  RT4A/P IZ7QDZ JN80 (x5)

UTC    dB Audio  Message
220330  -9 2152  IZ7QDZ NF3R FN20 (x3)
220615 -14  674  JR1NHD IZ7QDZ R-12
221545 -16  967  IZ7QDZ K8ATL FM18 (x2)
222030 -13  674  K8ATL IZ7QDZ RRR
222045 -12  968  IZ7QDZ K8ATL 73
054600  -9  675  V31DL IZ7QDZ JN80 (x3)
112645 -14  976  M0IEP IZ7QDZ RRR (x2)
112915 -17  976  CQ IZ7QDZ JN80                        a1
112930 -23 2055  IZ7QDZ RW3XB KO84

UTC    dB Audio  Message
093615  -9  684  LZ1JZ IZ7QDZ R-02
093845  -9  684  CQ IZ7QDZ JN80                        a1
093915  -8  683  EA3IXP IZ7QDZ R-12
053930 -12  687  CQ IZ7QDZ JN80

UTC    dB Audio  Message
233530 -10 1188  IZ7QDZ PG7R +05 (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.