UT7ZM — reception at SO8OO

Observed FT8 message patterns

Attributed sample

229 messages

Active dates

15 UTC dates

Estimated median S/N

+4.4 dB

Estimated 10th-90th percentile

-9 to +15 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 20, strong (≥ -8 dB) 205.

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 UT7ZM 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 UT7ZM

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

KN57 · 131 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

727 km (approx.)

Last such locator decoded

2026-11-03 03:00 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
040700  -4 1880  SV9QWC UT7ZM R-02
040715 -13 1879  UT7ZM SV9QWC RR73
040730  -5 1880  SV9QWC UT7ZM 73
040945  +1 1210  EI4JFB UT7ZM KN57 (x2)
025645  -8 1397  OD5ZZ UT7ZM KN57 (x3)
025830 -13 2883  UT7ZM A92AE -19
030045  +1 1403  E75C UT7ZM KN57
030100  +9 1402  UT7ZM E75C -08
030115  -2 1403  E75C UT7ZM R-10
030130  +3 1402  UT7ZM E75C RR73
030445  -4 1484  SV9MBH UT7ZM R-10 (x2)

UTC    dB Audio  Message
042930 +21 2917  HC1HC UT7ZM 73
042945  -4 2776  UT7ZM MI0OBC -16
043000  +5 2776  MI0OBC UT7ZM R-17
043015  -8 2847  UT7ZM N3FCP FM29
043015  -7 2776  UT7ZM MI0OBC RR73
043030 +10 2778  MI0OBC UT7ZM 73
043045  -2 2779  UT7ZM EB3JT JN01 (x3)
043200 +16 2779  EB3JT UT7ZM RR73
043215  -6 2779  UT7ZM EB3JT 73
043515  +8  582  MI0NWA UT7ZM KN57 (x3)
044045  +7  828  EK/RX3DPK UT7ZM KN57

UTC    dB Audio  Message
134015  +4 2645  UT7ZM PE4BEN JO22 (x2)
134115 -15 1698  UT7ZM HB9IIH R JN36 (x2)
134315 -14 1752  UT7ZM F1PSX JN08 (x2)
134445  -4 1752  UT7ZM PA3CWQ JO21 (x2)
143415  -7 2072  UT7ZM JA6GCE R PM52
055615 +10 1334  UT7ZM RN6MA -04 (x4)
055745  -7 2968  UT7ZM IW5ALZ R-05 (x2)

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.