R4BD — reception at SO8OO

Observed FT8 message patterns

Attributed sample

151 messages

Active dates

16 UTC dates

Estimated median S/N

-13 dB

Estimated 10th-90th percentile

-20 to -4 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 53, moderate (-15 to -9 dB) 66, strong (≥ -8 dB) 32.

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 R4BD 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 R4BD

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

LN28 · 60 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,686 km (approx.)

Last such locator decoded

2026-11-02 17:12 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
171230  -7 1344  R4BD R6ML R-04
171230 -10 2031  R4BD R2EC KO82
171245 -21 1344  CQ R4BD LN28
171300 -10 2031  R4BD R2EC KO82
171345 -19 1344  UA4CKN R4BD R-16 (x2)
171430  -3 1301  R4BD OK1DXR JO60 (x2)
171515 -22 1343  RA4HG R4BD R-16
171530  -5 1301  R4BD OK1DXR JO60 (x2)
171630 -17 2378  R4BD RA4P LO64
171630  -1 1301  R4BD OK1DXR JO60 (x3)

UTC    dB Audio  Message
165600 -19 1252  R4BD UA3SCU RR73
165600 -24 1353  R4BD R9FF R-14
165600 -20 2369  R4BD R6ZAJ KN98
165630 -24 1354  R4BD R9FF R-14
165645 -19 1344  CQ R4BD LN28 (x2)
165730 -12  959  R4BD UA4CCH LO21 (x2)
170100 +10 2566  R4BD IQ4JO JN63
170115 -15 1345  CQ R4BD LN28
170130  -7  910  R4BD R9FF LO88
170245  -8 1345  RZ0SW R4BD LN28
170330 -11  910  R4BD R9FF LO88
170600 -16 1800  R4BD UA3LKM KO65 (x2)

UTC    dB Audio  Message
140030 -23 1935  R4BD TN8GD RR73

UTC    dB Audio  Message
141400  -8 2040  R4BD UA4FKT LO23
141400  -8 2250  R4BD R3WDW KO81 (x2)
141500  -7 2040  R4BD UA4FKT LO23
141500  -2 2250  R4BD R3WDW 73
141530  -3 2039  R4BD UA4FKT R+09
141630  -5 2040  R4BD OE6TNO JN77 (x9)

UTC    dB Audio  Message
094100 -12 1425  R4BD PE9JAN R-06
094130 -20 2169  R4BD YO9PH +02
094130 -12 1425  R4BD PE9JAN 73
094200 -20 2169  R4BD YO9PH RR73
094215  -4 2490  YO9PH R4BD 73
094230 -16 2489  R4BD TA3ZGR -15
094630  -6 2490  WK2M R4BD LN28
153215 -22 1219  R4BD R8AU R-15
154715 -11  921  R4BD BI4XDT R-15 (x2)
163745 -12 1689  TA4RC R4BD LN28
164015  -7 1689  <...> R4BD LN28
040600  -9  537  R4BD RA0SCZ OO06 (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.