UT4WT — FT8 activity observed at SO8OO

Observed FT8 message patterns

Attributed sample

1,498 messages

Active dates

39 UTC dates

Estimated median S/N

+7 dB

Estimated 10th-90th percentile

-3 to +13 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 57, strong (≥ -8 dB) 1,433.

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 UT4WT 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 UT4WT

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

KO20 · 917 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

237 km (approx.)

Last such locator decoded

2026-10-10 09:49 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
090515  +3 2166  SP100PKP UT4WT R+10
090530  -8  790  UT4WT RR73; LA9IX <...> -20
090615  -3 2166  SP100PKP UT4WT KO20 (x6)
091015  +5 2165  <HF100PKP> UT4WT KO20 (x5)
094730 -18 1590  DL9PN UT4WT KO20
094900 -15 1590  PD1WD UT4WT KO20

UTC    dB Audio  Message
040230  -4 1810  2W0YOX UT4WT 73
043230  +2 1810  SP5KG UT4WT KO20
043245  +4 2235  UT4WT SP5KG +13
043300  +5 1810  SP5KG UT4WT R+07
043315 +10 2236  UT4WT SP5KG RR73
043330  +1 1810  SP5KG UT4WT R+07 (x2)
043415  -2  745  UT4WT PA3FPQ JO32 (x2)
043500  +6 1810  PA3FPQ UT4WT -05
043515  +0  745  UT4WT PA3FPQ R+07
043530  +3 1810  PA3FPQ UT4WT RR73
043545  +2  745  UT4WT PA3FPQ 73
043645  -7 1810  UT4WT PA1CTW JO32 (x2)

UTC    dB Audio  Message
154030  +6 1243  UT5ZC UT4WT KO20
154100  +6 1243  OM2WW UT4WT KO20 (x5)
154345  -7 1156  UT4WT OM2WW +00
154400  +5 1243  OM2WW UT4WT R+02
154415  -2 1156  UT4WT OM2WW RR73
154430 +10 1243  OM2WW UT4WT 73
154600  +6 1483  CQ UT4WT KO20 (x3)
160700  +8 1483  OK1FRG UT4WT KO20 (x2)

UTC    dB Audio  Message
122215 -12 1255  UT4WT HB9HNU +12 (x2)
122600 -14 1789  UT4WT G4RIQ -08
162630  -9 1212  UT4WT EA8UP -10 (x2)
083815 -22 1873  UT4WT CU2AP +00 (x2)

UTC    dB Audio  Message
165115 -10 2614  UT4WT F1PBZ -07 (x2)
165145 -10 1294  UT4WT F1ODM -08 (x3)
115945 -11 1059  UT4WT LZ1ZF -02
091315  +0  716  UT4WT PD5FL -18 (x4)
092900  -3  747  UT4WT DL3EBJ -11 (x2)
164115 -12 2036  UT4WT 7Z1BM -12 (x2)
081245  -1 1120  UT4WT SV1FJR RR73

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.