DD1RO — reception at SO8OO

Observed FT8 message patterns

Attributed sample

110 messages

Active dates

8 UTC dates

Estimated median S/N

-6 dB

Estimated 10th-90th percentile

-17 to 0 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 20, moderate (-15 to -9 dB) 29, strong (≥ -8 dB) 61.

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 DD1RO 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 DD1RO

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

JO71 · 62 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

508 km (approx.)

Last such locator decoded

2026-10-15 16:34 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
143345 -17 1007  HA1BF DD1RO 73
143800 -18 1007  S57ACD DD1RO R-16
143815 -12 1627  DD1RO S57ACD RR73
143830 -16 1007  S57ACD DD1RO 73
145445  +1 1432  DD1RO OE3MJA +01
145500  -9  898  OE3MJA DD1RO R-03
145515  +2 1432  DD1RO OE3MJA RR73
172130  -2  612  DD1RO PD0DEX -06 (x2)
180500  +0 1144  ON2VHF/P DD1RO JO71
163445  -2 2645  R6AAG DD1RO JO71
163530  -8 2774  DD1RO R6AAG -17
163545  -5 2645  R6AAG DD1RO R-07
163600  -7 2774  DD1RO R6AAG RR73
163615  -2 2645  R6AAG DD1RO 73

UTC    dB Audio  Message
172500 -16  633  DD1RO UR5RBP KO51
172500  +3  325  DD1RO DL5JMN R-02
172515  -1 1917  DL5JMN DD1RO RR73
172530 +10  325  DD1RO DL5JMN 73
172545  +1 1917  UA4FKT DD1RO -12 (x2)
172945  -1 1917  HB9FIL/P DD1RO JO71
173000  -2 1979  DD1RO HF100PKP +11
173015  +2 1917  HB9FIL/P DD1RO R-04
174300  -6 1677  DR2A DD1RO JO71 (x4)
174445  -5 1033  DD1RO DR2A RR73
174500  -1 1249  DR2A DD1RO 73

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.