UR4UUR — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

606 messages

Active dates

40 UTC dates

Estimated median S/N

-10.8 dB

Estimated 10th-90th percentile

-23 to -1 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 238, moderate (-15 to -9 dB) 109, strong (≥ -8 dB) 259.

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 UR4UUR 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 UR4UUR

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

KO50 · 346 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

658 km (approx.)

Last such locator decoded

2026-09-14 17:24 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
195045 -13 1659  W1AW/4 UR4UUR -09
182815  -6 1648  TA2/TF1OL UR4UUR -15
182845  -8 1648  UK7AL UR4UUR -16
183045  -6 1648  TA2/TF1OL UR4UUR -14 (x2)
183730  -5 1162  UR4UUR II0IHMG R-25
193330 -16 1768  UR4UUR II8IHBC R-18 (x2)
194300 -13 1697  UR4UUR IR0IADU R-10 (x2)
170145  -1 1648  <II9IAGM> UR4UUR -17
163645  -4 1648  DF8MH/P UR4UUR -14 (x3)
163800 -13 1966  UR4UUR II9IAGM R-13

UTC    dB Audio  Message
170630 +20 1065  UR4UUR SP5IDR KO01
170700 +19 1614  UR4UUR UY2RA KO51
170700 +21 1065  UR4UUR SP5IDR KO01
170730  +6 2885  UR4UUR YL3NT KO36
171330  +1 1558  OM2ZZ UR4UUR -15
171600  -2 1558  UT7IA UR4UUR -11 (x2)
171645 -13 2118  UR4UUR UT7IA R-03
171700  +4 1658  UT7IA UR4UUR RR73
172000  -1 1658  SV9GPV UR4UUR -20 (x2)
172130  -5 1658  LY2SA UR4UUR -14 (x2)
172400  -5 1658  CQ UR4UUR KO50                        a1 (x2)

UTC    dB Audio  Message
190815  -5 1616  DK7UY UR4UUR -12
190830  +4  532  UR4UUR DK7UY R-07
190845  -8 1616  DK7UY UR4UUR RR73
190900  +6  532  UR4UUR DK7UY 73
190930  -1  664  UR4UUR G4ATX JO01 (x3)

UTC    dB Audio  Message
182115  +2 1792  UR4UUR PA0ARR -04 (x2)
182600  -1 1025  UR4UUR GJ0KYZ -08 (x2)
182745  -8 1794  SP3JHZ UR4UUR RR73
183100 -13 1794  EA8UP UR4UUR KO50
183115  +5 1826  UR4UUR EA8UP -09
183130 -13 1794  EA8UP UR4UUR R-12 (x2)
183545  +5 1826  UR4UUR EA8UP RR73
183600 -12 1794  EA8UP UR4UUR 73
185900 -18  870  UR4UUR EX7DY -11
184300  -3  465  UR4UUR RR73; IU5TFD <...> +00
160100  -1 1515  UR4UUR CT7AUT -03 (x2)

UTC    dB Audio  Message
174930 -19 2089  UR4UUR DO4RP JO31 (x2)
181330 -17 2029  UR4UUR RW3RN LO02 (x3)
162400 -20 2080  UR4UUR PD1HPB JO22 (x2)
162630  -5 2071  UR4UUR DN9BT JO40
163730 -16 1503  UR4UUR DN9AD JO52 (x4)
163930 -16 1794  UR4UUR DK8EE JO41
143445  -4 1781  UR4UUR EA8UP -24 (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.