DF7CB — reception at SO8OO

Observed FT8 message patterns

Attributed sample

80 messages

Active dates

8 UTC dates

Estimated median S/N

-8 dB

Estimated 10th-90th percentile

-17 to +1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 26, strong (≥ -8 dB) 42.

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 DF7CB 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 DF7CB

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

JO31 · 58 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,054 km (approx.)

Last such locator decoded

2026-10-28 20:18 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
195630  -4 1138  DF7CB UA3SCU -08 (x2)
195845  -4 2714  A92AE DF7CB JO31 (x3)
200230 -14 1718  DF7CB EX7CQ -11
200245 -21 2115  EX7CQ DF7CB R+04
200345 -17 2114  TA1MB DF7CB -06
200530 -19 1607  VJ6X DF7CB JO31
200615 -20 1657  EP2AES DF7CB JO31 (x2)
201245 -15 1768  A92AE DF7CB JO31 (x2)
201815  -9 2587  PD2MAC/P DF7CB JO31 (x2)

UTC    dB Audio  Message
204200  -2 2402  DF7CB TF4M -08 (x2)
204545  -9 1740  RI1FJZ DF7CB JO31 (x4)

UTC    dB Audio  Message
194300  +4  540  SM6YRB DF7CB JO31 (x2)
194330  -8 1900  DF7CB DL1DCT JO31
194400  -2  540  SM6YRB DF7CB R-07 (x2)
202845  -6 2402  RI1FJZ DF7CB JO31 (x10)

UTC    dB Audio  Message
214815  +1 2226  RI1FJL DF7CB JO31 (x12)

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.