UR4FY — reception at SO8OO

Observed FT8 message patterns

Attributed sample

224 messages

Active dates

4 UTC dates

Estimated median S/N

-4 dB

Estimated 10th-90th percentile

-12 to +1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 12, moderate (-15 to -9 dB) 30, strong (≥ -8 dB) 182.

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 UR4FY 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 UR4FY

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

KN56 · 177 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

781 km (approx.)

Last such locator decoded

2026-10-01 19:56 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
194030  -3  881  UR4FY DA0UDS JN39 (x8)
194900  -8  769  UR4FY PD3LR JO22
195115 -21 1935  CQ UR4FY KN56 (x6)

UTC    dB Audio  Message
085200  -1 2592  UR4FY UA9CMN R+15 (x2)

UTC    dB Audio  Message
183715 -24 1318  CQ UR4FY KN56 (x2)
184130  -5 1257  UR4FY RK6OQ KN87 (x3)
184745 -17 1320  CQ UR4FY KN56 (x5)

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.