RZ9AO — reception at SO8OO

Observed FT8 message patterns

Attributed sample

126 messages

Active dates

13 UTC dates

Estimated median S/N

-9 dB

Estimated 10th-90th percentile

-20 to 0 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 31, moderate (-15 to -9 dB) 37, strong (≥ -8 dB) 58.

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 RZ9AO 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 RZ9AO

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

LO93 · 65 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

2,563 km (approx.)

Last such locator decoded

2026-09-24 17:15 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
142730  +6 2876  RZ9AO RT6Z 73
140500 -18 1790  RZ9AO RK4CH R-14 (x3)
141330 -16 1683  RZ9AO YL3ASK KO26 (x2)
045015 -13 1831  RZ9AO UB3ZKO KO80
045015  -5 2193  RZ9AO F1IQH JN27 (x3)
045515 -23 2020  RZ9AO IZ8VYU JN71
045915  -8 2193  RZ9AO UA3RBM RR73
050230 -15 2193  RZ9AO UB3DLM KO84 (x3)

UTC    dB Audio  Message
171215 -23 2416  CQ RZ9AO LO93
171300  +5 2416  RZ9AO DA6NEL JO60 (x3)
171415 -23 2417  DA6NEL RZ9AO RR73
171430  +1 2416  RZ9AO DA6NEL 73
171445 -18 2417  CQ RZ9AO LO93 (x2)
171530  +0 2416  RZ9AO DB5ABS JO50
180130 -24  773  RZ9AO RA3VX LO06 (x3)
180530 -16 1213  RZ9AO RA4Y R+10 (x2)
180715 -24 1901  Z62NS RZ9AO -18

UTC    dB Audio  Message
073530  -9 2298  RZ9AO DL1BGH R-09
073745 -13 2517  OE7LVI RZ9AO -09 (x2)
073945 -10 2516  CQ RZ9AO LO93
074015  -9 2516  2W0YOX RZ9AO -20 (x4)
030515 -24 1819  CQ RZ9AO LO93                         a1 (x2)
035145  -5  465  RZ9AO <...> R-06
035230 -24 1976  CQ RZ9AO LO93 (x2)
040215 -18 1969  RZ9AO RA9ACA RR73
040815  +7 1031  RZ9AO RU4AJ LO00

UTC    dB Audio  Message
080045 -22 1805  RZ9AO RK6DZ R-01 (x2)
091745 -17 2398  RZ9AO R3AT -17
093245 -11 2393  RZ9AO DN9OPA JN38 (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.