DO7RMA — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

4,531 messages

Active dates

62 UTC dates

Estimated median S/N

-5.3 dB

Estimated 10th-90th percentile

-16.3 to +3 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 546, moderate (-15 to -9 dB) 1,091, strong (≥ -8 dB) 2,894.

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 DO7RMA 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 DO7RMA

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

JO61 · 3,668 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

642 km (approx.)

Last such locator decoded

2026-09-20 10:32 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
052945  +0 1929  CQ DO7RMA JO61 (x6)
053245  +3 1929  DO4EB DO7RMA -11
102745 -24 1929  CQ DO7RMA JO61 (x8)

UTC    dB Audio  Message
184845 -21 1527  CQ DO7RMA JO61 (x2)
184945 -18 1527  DK4VF DO7RMA -04
185000 -10 1527  DO7RMA DK4VF R-05
185015 -19 1526  DK4VF DO7RMA RR73
185545 -20 1527  CQ DO7RMA JO61 (x10)

UTC    dB Audio  Message
084400  -1 2687  DO7RMA F1PBZ +01 (x2)
084700  -7  270  DO7RMA F5CUN JN26 (x4)
151630 -20 2030  DO7RMA F5SZY IN96 (x5)
074930  -2  748  DO7RMA R6DWD -20 (x2)
085615  -1  979  DO7RMA SV1CQN R-10 (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.