RC2DD — reception at SO8OO

Observed FT8 message patterns

Attributed sample

2,674 messages

Active dates

94 UTC dates

Estimated median S/N

-3 dB

Estimated 10th-90th percentile

-16 to +7.7 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 300, moderate (-15 to -9 dB) 480, strong (≥ -8 dB) 1,894.

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 RC2DD 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 RC2DD

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

KO85 · 1,719 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,193 km (approx.)

Last such locator decoded

2026-10-22 06:29 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
043415 -17  908  Z61DX RC2DD KO85
045145 -11  454  9A5CC RC2DD KO85 (x2)
045600  +4  455  RC2DD 9A5CC -11 (x2)
145030 +10 2788  RC2DD R80SAA -16 (x2)
212100  -8 2382  RC2DD DL5DQZ RR73
062900 -22 1941  DL6NDN RC2DD KO85
062945  -6 1942  RC2DD DL6NDN -14 (x4)
063445  -4 1244  RC2DD DL7VOG -12 (x2)

UTC    dB Audio  Message
051930 -20 1383  RC2DD RA4FEA +14
064600  +6  322  RC2DD RA6OY R-14 (x2)
101400 -12 1769  RC2DD E70SZ JN84 (x3)
100800 -14  846  PY4QQ RC2DD KO85 (x2)
124645 -21 2233  RC2DD 5Z4RS RR73

UTC    dB Audio  Message
175500  -4 2598  4X1UF RC2DD KO85 (x3)
181415  -6 2597  RC2DD 4X1UF -17 (x4)
181700 -13 2598  4X1UF RC2DD 73
184600 -12 2309  GM4YXI RC2DD KO85 (x3)
011600  +7 1498  RC2DD UA6AR -12
011615 -14 1489  UA6AR RC2DD R+05
011630 +11 1497  RC2DD UA6AR RR73
011645 -11 1488  UA6AR RC2DD 73

UTC    dB Audio  Message
000545 +14 2593  S57TW RC2DD KO85 (x2)
000630 +14 2592  RC2DD S57TW RR73
000645 +15 2593  S57TW RC2DD 73
000815 +11  803  N1IWP RC2DD KO85
000930  +3 1531  SV3CEZ RC2DD KO85
000945  +1 1532  RC2DD SV3CEZ -02
001000  +1 1531  SV3CEZ RC2DD R-05
001015  +0 1532  RC2DD SV3CEZ RR73
001030  -2 1531  SV3CEZ RC2DD 73
001045  +9 2127  RC2DD R3LDK KO64
001045  -3 1662  RC2DD EC3A -15
001115 +11 2127  RC2DD R3LDK KO64 (x2)
034345 -10 1960  RC2DD RO3ZR R+01

UTC    dB Audio  Message
042615  -7 2346  RC2DD XQ1KK RR73
040100  -5  540  RC2DD A93MO +00 (x3)
033700 -17 1939  RC2DD UN6LN +03 (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.