RV3ZN — reception at SO8OO

Observed FT8 message patterns

Attributed sample

529 messages

Active dates

27 UTC dates

Estimated median S/N

+1.5 dB

Estimated 10th-90th percentile

-8 to +10 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 36, strong (≥ -8 dB) 483.

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 RV3ZN 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 RV3ZN

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

KO81 · 221 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,083 km (approx.)

Last such locator decoded

2026-09-24 16:07 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
041800  +0 3125  UA9SY RV3ZN RR73
041915  +2 3123  ZL3IO RV3ZN KO81 (x8)
042500 -12  332  RV3ZN ZL3IO RR73
042515  -1  328  ZL3IO RV3ZN 73
042530  +4  328  RV3ZN RN6HK LN14 (x3)
160730  -2 2754  CQ RV3ZN KO81

UTC    dB Audio  Message
021915  +9 2908  <...> RV3ZN KO81 (x6)
184215 +10 2776  CQ RV3ZN KO81 (x2)

UTC    dB Audio  Message
182545  -2 2697  R9CS/P RV3ZN KO81
183045 -19 1186  RV3ZN RA4Y +00 (x2)
183145 +12 2691  RV3ZN UA3ZUX KO90
183145 -12  982  RV3ZN RM5F KO85
183245 +14 2691  RV3ZN UA3ZUX R-02 (x2)
183915  -8 2907  RT2P RV3ZN R-03
183930  -8  395  RV3ZN RT2P RR73
183945  +0 2907  RT2P RV3ZN 73

UTC    dB Audio  Message
124045  +6 3072  CQ RV3ZN KO81
130145  +2 3000  R9OBJ/P RV3ZN KO81 (x3)
130315  +5 2997  UA9WM RV3ZN -06 (x2)
130415  +6 2995  BA4TOT RV3ZN -12 (x2)
130645  +9 3003  VU2KPH RV3ZN KO81
131000  +4 2016  JH2BJL RV3ZN KO81 (x3)
135315 +12 3084  RI1FJL RV3ZN KO81 (x3)

UTC    dB Audio  Message
104615 -13 2157  JA0FIL RV3ZN KO81
104715 -17 2162  CQ RV3ZN KO81
104730  +1 2732  RV3ZN F1PBZ -11
104745 -10 2157  F1PBZ RV3ZN R-13
104800  +4 2732  RV3ZN F1PBZ RR73
104815 -12 2160  F1PBZ RV3ZN 73
104845  -8 2159  CQ RV3ZN KO81

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.