UR4QWW — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

15,733 messages

Active dates

76 UTC dates

Estimated median S/N

-8 dB

Estimated 10th-90th percentile

-19 to +3 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 3,133, moderate (-15 to -9 dB) 4,296, strong (≥ -8 dB) 8,304.

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 UR4QWW 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 UR4QWW

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

KN77 · 12,887 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,005 km (approx.)

Last such locator decoded

2026-09-19 06:47 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
063015 -12 2483  UR4QWW RN6MA +05
063030  -3 2482  CQ UR4QWW KN77
063045 -10 2483  UR4QWW RN6MA +05 (x2)
063530 -10 2483  CQ UR4QWW KN77
063615  -5 1410  UR4QWW DH1NGL -12 (x6)
064130 -12 2482  CQ UR4QWW KN77 (x3)
065145 -11 2483  UR4QWW RN6MA +03

UTC    dB Audio  Message
232545  -2 2447  R3RRC/P UR4QWW KN77 (x2)
232630 -13  447  UR4QWW SK150LM -11
232645  +2 2447  R3RRC/P UR4QWW R-12 (x4)
232900  -4 2446  UR4QWW RY3F -03
232915  +5 2447  DO9BLX UR4QWW KN77 (x2)
233000  -7  932  UR4QWW DO9BLX RR73
233015  +6 2447  DO9BLX UR4QWW 73
233030  -4 2447  UR4QWW RY3F -07
233030 -22 1052  UR4QWW ON1JP -10
233100  -9 2447  UR4QWW RY3F -07

UTC    dB Audio  Message
233315 -16 2436  CQ UR4QWW KN77                        a1

UTC    dB Audio  Message
081900 -20 1890  CQ UR4QWW KN77 (x6)
082515 -17 1893  UR4QWW R7OV KN87 (x2)
083845 -24 1888  CQ UR4QWW KN77                        a1
085245 -24 1886  DS5ACV UR4QWW R-15
094745  -1  592  UR4QWW IK4IDP -13 (x2)
090730 -11  900  UR4QWW IT9IVN -15 (x3)

UTC    dB Audio  Message
063815 -11 1587  RI1FJL UR4QWW KN77 (x12)
074715  -6 2103  UR4QWW II7MGBT +03
074845 -23 1579  II7MGBT UR4QWW KN77
075030  +5 2519  UR4QWW YO1BRANCUSI -15

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.