RV4AS — reception at SO8OO

Observed FT8 message patterns

Attributed sample

467 messages

Active dates

32 UTC dates

Estimated median S/N

-7 dB

Estimated 10th-90th percentile

-17 to +1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 59, moderate (-15 to -9 dB) 140, strong (≥ -8 dB) 268.

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 RV4AS 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 RV4AS

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

LN18 · 258 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,543 km (approx.)

Last such locator decoded

2026-10-21 23:08 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
054100  -6 2810  RV4AS RD3FY KO85
054130  -2  422  RV4AS YO3GNF R-12
054130  -8 2810  RV4AS RD3FY KO85
054200  -2  422  RV4AS YO3GNF R-12 (x2)
054230  -4 2810  RV4AS RD3FY KO85 (x3)
054345 -11  593  CQ RV4AS LN18                         a1
054400 +13 2751  RV4AS IU2THY JN45
054430  -6 2809  RV4AS RD3FY KO85
054430 +12 2751  RV4AS IU2THY JN45 (x2)
231400  +6  698  RV4AS P4/WE9V -11
231430  +6  698  RV4AS RR73; VE3UWC <...> -14

UTC    dB Audio  Message
230515  -3  852  RV4AS F1IQH JN27
230530  +1  853  R2EA/P RV4AS -16
230545  +2  852  RV4AS F1IQH JN27
230630  +0  853  CQ RV4AS LN18 (x3)
230745  -1  852  RV4AS DO8JB JO32
230800  +5  853  CQ RV4AS LN18
230815  +1  932  RV4AS ON4MAP JO20
230830  +5  852  R4FJ RV4AS -04
230845  +1  931  RV4AS ON4MAP JO20 (x5)

UTC    dB Audio  Message
230530  +2  895  RV4AS R6FFB LN14 (x7)
164845  -5 2215  RV4AS RU3OZ R-08 (x2)
225800 +13 2202  RV4AS UA4FKT LO23 (x3)
230000  -9 2202  RV4AS UA6JQ LN22 (x3)

UTC    dB Audio  Message
150030 -15 2467  RV4AS RC0JD 73
150500  +0  792  RV4AS F6CAX JO00 (x2)
094930 -11 1940  CQ RV4AS LN18 (x2)
095015  -7 1671  RV4AS RZ6CO -15
131145 +11  466  RI1FJL RV4AS LN18 (x3)
131415 -10 1888  CQ RV4AS LN18 (x3)
203115  -7 1618  RV4AS CT1BFP IM59 (x3)

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.